BFQ790H6327XTSA1
Bipolar - RF Transistor, NPN, 6.1 V, 20 GHz, 1.5 W, 300 mA, SOT-89
- Manufacturer: INFINEON
- Product type: Bipolar RF Transistors
- Transistor Polarity:NPN; Collector Emitter Voltage V(br)ceo:6.1V; Transition Frequency ft:20GHz; Power Dissipation Pd:1.5W; DC Collector Current:300mA; DC Current Gain hFE:60hFE; R
- MSL: MSL 1 - Unlimited
- SVHC: No SVHC (17-Dec-2015)
- No. of Pins: 3Pins
- Product Range: -
- Qualification: -
- Power Dissipation: 1.5W
- Transistor Mounting: Surface Mount
- Transistor Polarity: NPN
- Transition Frequency: 20GHz
- Transistor Case Style: SOT-89
- DC Current Gain hFE Min: 60hFE
- Operating Temperature Max: 150°C
- Continuous Collector Current: 300mA
- Collector Emitter Voltage Max: 6.1V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.817 € |
| Current stock | 10+ |
| Lead time | 30 days |
## **BFQ790**
## **High linearity RF medium power transistor**
Order now © ree ><) Simulation et) Support
## **Product description**
The BFQ790 is a single stage high linearity and high gain driver amplifier based on NPN silicon germanium technology.
## **Feature list**
- _OIP_ 3 = 38.5 dBm at 900 MHz, 5 V, 250 mA
- _OP_ 1dB = 27 dBm at 900 MHz, 5 V, 250 mA corresponding to 40% collector efficiency
- High gain _G_ ms = 23 dB at 900 MHz, 5 V, 250 mA
- High maximum RF input power _P_ RFin,max = 18 dBm
## **Product validation**
Qualified for industrial applications according to the relevant tests of JEDEC47/20/22.
## **Potential applications**
- Commercial and industrial wireless infrastructure
- ISM band medium power amplifiers and drivers
- Automated test equipment
- UHF television, CATV and DBS
## **Device information**
|**Product name / Ordering code**|**Package**|**Pin configuration**|**Pin configuration**|**Pin configuration**|**Marking **|**Pieces / Reel**|
|---|---|---|---|---|---|---|
|BFQ790 / BFQ790H6327XTSA1|SOT89|1 = B|2 = E|3 = C|R3|1000|
_**Attention** :_ _**ESD (Electrostatic discharge) sensitive device, observe handling precautions**_
Please read the Important Notice and Warnings at the end of this document
Datasheet **www.infineon.com**
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Table of contents**
## **Table of contents**
||**Product description**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1|
|---|---|
||**Feature list**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1|
||**Product validation**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1|
||**Potential applications**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1|
||**Device information**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1|
||**Table of contents**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2|
|**1**|**Absolute maximum ratings**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3|
|**2**|**Recommended operating conditions**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4|
|**3**|**Thermal characteristics**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5|
|**4**|**Electrical performance in test fixture**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|4.1|DC parameter table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|4.2|AC parameter tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|4.3|Characteristic DC diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9|
|4.4|Characteristic AC diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11|
|**5**|**Package information SOT89**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20|
||**Revision history**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21|
||**Disclaimer**. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22|
Datasheet
2
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Absolute maximum ratings**
## **1 Absolute maximum ratings**
## **Table 2 Absolute maximum ratings at** _**T**_ **A = 25 °C (unless otherwise specified)**
|**Parameter**|**Symbol**|**Values**|**Values**|**Unit**|**Note or test condition**|
|---|---|---|---|---|---|
|||**Min.**|**Max.**|||
|Collector emitter voltage|_V_CE|–<br>–|6.1<br>5.1|V|_T_A= 25 °C<br>_T_A= -40 °C|
|Collector base voltage|_V_CB|–|18|V|–|
|Instantaneous total base emitter<br>reverse voltage|_v_BE|-2|–|V|DC + RF swing|
|Instantaneous total collector current|_i_C|–|600|mA|DC + RF swing|
|DC collector current|_I_C|–|300|mA|–|
|DC base current|_I_B|–|10|mA|–|
|RF input power|_P_RFin|–|18|dBm|In- and output matched|
|Mismatch at output|_VSWR_|–|10:1||In compression, over all<br>phase angles|
|ESD stress pulse|_V_ESD|-500|500|V|HBM, all pins, acc. to ANSI /<br>ESDA / JEDEC JS-001-2012|
|Dissipated power|_P_diss|–|1500|mW|_T_S≤ 112.5 °C**_1)_**, regard<br>derating curve in**_Figure 1_**.|
|Junction temperature|_T_J|–|150|°C|–|
|Operating case temperature|_T_A|-40|105**_2)_**|°C|–|
|Storage temperature|_T_Stg|-55|150|°C|–|
_**Attention** :_ _**Stresses above the max. values listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible damage to the component.**_
> 1 _T_ S is the soldering point temperature. _T_ S is measured on the emitter lead at the soldering point of the PCB.
> 2 At the same time regard _T_ J,max.
Datasheet
3
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Recommended operating conditions**
## **2 Recommended operating conditions**
This following table shows examples of recommended operating conditions. As long as maximum ratings are regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime. For further information refer to the quality report available on the BFQ790 internet page.
|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|**2**<br>**Recommended operating conditions**<br>This following table shows examples of recommended operating conditions. As long as maximum ratings are<br>regarded, operation outside these conditions is permitted, but it may increases failure rate and reduces lifetime.<br>For further information refer to the quality report available on the BFQ790 internet page.|
|---|---|---|---|---|---|---|---|---|
|**Table 3**<br>**Recommended operating conditions**|||||||||
|**Operating**<br>**mode**|**Ambient**<br>**tempera-**<br>**ture****_1)_**|**Collector**<br>**current**|**DC**<br>**power****_2)_**|**RF**<br>**output**<br>**power****_3)_**|**Eficiency****_4)_ **|**Dissipated**<br>**power****_5)_**|**Thermal**<br>**resistance**<br>**of PCB****_6)_**|**Junction**<br>**tempera-**<br>**ture****_7)_**|
||_T_A<br>[°C]|_I_C<br>[mA]|_P_DC<br>[mW]|_P_RFout<br>[mW]<br>(dBm)|η<br>[%]|_P_diss<br>[mW]|_R_thSA<br>[K/W]|_T_J<br>[°C]|
|Compression|55|250|1250|500 (27)|40|750|45|110|
|Final stage|55|200|1000|250 (24)|25|750|45|110|
|High_T_A|85|120|600|50 (17)|8.5|550|20|110|
|Maximum_T_A|105|50|250|100 (20)|40|150|30|110|
|Linear|55|150|750|50 (17)|7|700|50|110|
|Very linear|55|250|1250|50 (17)|4|1200|20|110|
- 1 Is the operating case temperature respectively of the heat sink.
- 2 _P_ DC = _V_ CE* _I_ C with _V_ CE = 5 V.
- 3 RF power delivered to the load, _P_ RFout = η * _P_ DC.
- 4 Efficiency of the conversion from DC power to RF power, η = _P_ RFout / _P_ DC (collector efficiency). 5 _P_ diss = _P_ DC - _P_ RFout. The RF output power _P_ RFout delivered to the load reduces the power _P_ diss to be dissipated by the device. This means a good output match is recommended.
- 6 _R_ thSA is the thermal resistance of the PCB including heat sink, that is between the soldering point _S_ and the ambient _A_ . Regard the impact of _R_ thSA on the junction temperature _T_ J, see below. The thermal design of the PCB, respectively _R_ thSA, has to be adjusted to the intended operating mode.
- 7 _T_ J = _T_ A + _P_ diss * _R_ thJA.
- _R_ thJA = _R_ thJS + _R_ thSA.
- _R_ thJA is the thermal resistance between the transistor junction _J_ and the ambient _A_ .
- _R_ thJS is the combined thermal resistance of die and package, which is 25 K/W for BFQ790, see _**Chapter 3**_ .
Datasheet
v3.0 2018-09-26
4
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Thermal characteristics**
## **3 Thermal characteristics**
## **Table 4**
## **Thermal resistance**
|**Parameter**|**Symbol**|**Values**|**Values**|**Values**|**Unit**|**Note or test condition**|
|---|---|---|---|---|---|---|
|||**Min.**|**Typ.**|**Max.**|||
|Junction - soldering point|_R_thJS|–|25|–|K/W|–|
**==> picture [323 x 252] intentionally omitted <==**
## **Figure 1 Absolute maximum power dissipation** _**P**_ **diss,max = f(** _**T**_ **S)**
_Note: In the horizontal part of the derating curve the maximum power dissipation is given by P_ diss,max _≈ V_ CE,max _* I_ C,max _. In this part, the junction temperature T_ J _is lower than T_ J,max _. In the declining slope, it is T_ J _= T_ J,max _. P_ diss,max _has to be reduced according to the curve in order not to exceed T_ J,max _. It is T_ J,max _= T_ S _+ P_ diss,max _* R_ thJS _._
Datasheet
v3.0 2018-09-26
5
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
## **4 Electrical performance in test fixture**
## **4.1 DC parameter table**
## **DC characteristics at** _**T**_ **A = 25 °C**
||||||||
|---|---|---|---|---|---|---|
|**Table 5**<br>**DC characteristics at****_T_A = 25**||**°C**|||||
|**Parameter**|**Symbol**|**Values**|||**Unit**|**Note or test condition**|
|||**Min.**|**Typ.**|**Max.**|||
|Collector emitter breakdown voltage|_V_(BR)CEO|6.1|6.7|–|V|_I_C= 1 mA, open base|
|Collector emitter leakage current|_I_CES|–<br>–|1<br>0.1|40**_1)_**<br>3|nA<br>μA|_V_CE= 8 V,_V_BE= 0 V<br>_V_CE= 18 V,_V_BE= 0 V,<br>E-B short circuited|
|Collector base leakage current|_I_CBO|–|1|40**_1)_**|nA|_V_CB= 8_V_,_I_E= 0,<br>open emitter|
|Emitter base leakage current|_I_EBO|–|1|40**_1)_**|μA|_V_EB= 0.5 V,_I_C= 0,<br>open collector|
|DC current gain|_h_FE|60|120|180||_V_CE= 5 V,_I_C= 250 mA,<br>pulse measured**_2)_**|
## **4.2 AC parameter tables**
## **General AC characteristics at** _**T**_ **A = 25 °C**
||||||||
|---|---|---|---|---|---|---|
|**Table 6**<br>**General AC characteristics at****_T_A = 25 °C**|||||||
|**Parameter**|**Symbol**|**Values**|||**Unit**|**Note or test condition**|
|||**Min.**|**Typ.**|**Max.**|||
|Transition frequency|_f_T|–|20|–|GHz|_V_CE= 5 V,_I_C= 250 mA,<br>_f_= 0.5 GHz|
|Collector base capacitance|_C_CB|–|1.1|–|pF|_V_CB= 5 V,_V_BE= 0 V,<br>_f_= 1 MHz,<br>emitter grounded|
|Collector emitter capacitance|_C_CE|–|2.2|–|pF|_V_CE= 5 V,_V_BE= 0 V,<br>_f_= 1 MHz,<br>base grounded|
|Emitter base capacitance|_C_EB|–|9.4|–|pF|_V_EB= 0.5 V,_V_CB= 0 V,<br>_f_= 1 MHz,<br>collector grounded|
- 1 Upper spec value not limited by the device but by the short cycle time of the 100% test.
- 2 Pulse width is 1 ms, duty cycle 10%. Regard that the current gain _h_ FE depends on the junction temperature _T_ J and _T_ J amongst others from the thermal resistance _R_ thSA of the PCB, see notes to _**Table 3**_ . Hence the _h_ FE specified in this datasheet must not be the same as in the application. It is highly recommended to apply circuit design techniques to make the collector current _I_ C independent on the _h_ FE production variation and temperature effects.
Datasheet
6
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
## **Electrical performance in test fixture**
Measurement setup for the AC characteristics shown in _**Table 7**_ to _**Table 10**_ is a test fixture with Bias-T’s and tuners to adjust the source and load impedance in a 50 Ω system, _T_ A = 25 °C.
## **Figure 2 BFQ790 testing circuit**
**==> picture [498 x 178] intentionally omitted <==**
**----- Start of picture text -----**<br>
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|Table 7|AC characteristics,|V|CE = 5 V,|f|= 0.9 GHz|
|Parameter|Symbol|Values|Unit|Note or test condition|
|Min.|Typ.|Max.|
|Power gain|dB|
|Maximum power gain|G|ms|–|23|–|I|C = 250 mA|
|Transducer gain|||S|21||[2]|–|13|–|
|Minimum noise figure|dB|
|Minimum noise figure|NF|min|–|2.5|–|Z|S =|Z|S,opt,|I|C = 70 mA|
|Linearity|dBm|
|1 dB compression point at output|OP|1dB|–|27|–|Z|L =|Z|Lopt,|I|C = 250 mA|
|3rd order intercept point at output|OIP|3|–|38.5|–|
**----- End of picture text -----**<br>
**Table 8**
## **AC characteristics,** _**V**_ **CE = 5 V,** _**f**_ **= 1.8 GHz**
**==> picture [498 x 157] intentionally omitted <==**
**----- Start of picture text -----**<br>
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|Parameter|Symbol|Values|Unit|Note or test condition|
|Min.|Typ.|Max.|
|Power gain|dB|
|Maximum power gain|G|ma|–|18.5|–|I|C = 250 mA|
|Transducer gain|||S|21||[2]|–|7.5|–|
|Minimum noise figure|dB|
|Minimum noise figure|NF|min|–|2.6|–|Z|S =|Z|S,opt,|I|C = 70 mA|
|Linearity|dBm|
|1 dB compression point at output|OP|1dB|–|27|–|Z|L =|Z|Lopt,|I|C = 250 mA|
|3rd order intercept point at output|OIP|3|–|38.5|–|
**----- End of picture text -----**<br>
Datasheet
v3.0 2018-09-26
7
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
## **AC characteristics,** _**V**_ **CE = 5 V,** _**f**_ **= 2.6 GHz**
|**Table 9**<br>**AC characteristics,****_V_CE = 5 V,**|**Table 9**<br>**AC characteristics,****_V_CE = 5 V,**|**_f_ = 2.6 GHz**|**_f_ = 2.6 GHz**|**_f_ = 2.6 GHz**|**_f_ = 2.6 GHz**|**_f_ = 2.6 GHz**|
|---|---|---|---|---|---|---|
|**Parameter**|**Symbol**|**Values**|||**Unit**|**Note or test condition**|
|||**Min.**|**Typ.**|**Max.**|||
|**Power gain**<br>Maximum power gain<br>Transducer gain|_G_ma<br>|_S_21|2|–<br>–|16<br>5.5|–<br>–|dB|_I_C= 250 mA|
|**Minimum noise figure**<br>Minimum noise figure|_NF_min|–|3|–|dB|_Z_S=_Z_S,opt,_I_C= 70 mA|
|**Linearity**<br>1 dB compression point at output<br>3rd order intercept point at output|_OP_1dB<br>_OIP_3|–<br>–|27<br>38.5|–<br>–|dBm|_Z_L=_Z_Lopt,_I_C= 250 mA|
|**Table 10**<br>**AC characteristics,****_V_CE = 5 V,**|**Table 10**<br>**AC characteristics,****_V_CE = 5 V,**|**_f_ = 3.5 GHz**|**_f_ = 3.5 GHz**|**_f_ = 3.5 GHz**|**_f_ = 3.5 GHz**|**_f_ = 3.5 GHz**|
|---|---|---|---|---|---|---|
|**Parameter**|**Symbol**|**Values**|||**Unit**|**Note or test condition**|
|||**Min.**|**Typ.**|**Max.**|||
|**Power gain**<br>Maximum power gain<br>Transducer gain|_G_ma<br>|_S_21|2|–<br>–|13<br>3|–<br>–|dB|_I_C= 250 mA|
|**Minimum noise figure**<br>Minimum noise figure|_NF_min|–|3.4|–|dB|_Z_S=_Z_S,opt,_I_C= 70 mA|
|**Linearity**<br>1 dB compression point at output<br>3rd order intercept point at output|_OP_1dB<br>_OIP_3|–<br>–|27<br>38.5|–<br>–|dBm|_Z_L=_Z_Lopt,_I_C= 250 mA|
Datasheet
8
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
## **4.3 Characteristic DC diagrams**
**==> picture [316 x 248] intentionally omitted <==**
**----- Start of picture text -----**<br>
500<br>6mA<br>450<br>5.25mA<br>400<br>4.5mA<br>350<br>3.75mA<br>300<br>3mA<br>250<br>2.25mA<br>200<br>1.5mA<br>150<br>0.75mA<br>100<br>50<br>0mA<br>0<br>0 1 2 3 4 5 6 7<br>VCE [V]<br> [mA]<br>IC<br>**----- End of picture text -----**<br>
**Figure 3 Collector current vs. collector emitter voltage** _**I**_ **C = f(** _**V**_ **CE),** _**I**_ **B = parameter**
_Note: Refer to absolute maximum ratings for I_ C _, V_ CE _and P_ diss _._
**==> picture [316 x 250] intentionally omitted <==**
**----- Start of picture text -----**<br>
3<br>10<br>2<br>10<br>1<br>10<br>0 1 2 3<br>10 10 10 10<br>Ic [mA]<br>FE<br>h<br>**----- End of picture text -----**<br>
**Figure 4 DC Current gain** _**h**_ **FE = f(** _**I**_ **C),** _**V**_ **CE = 5 V**
Datasheet
9
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
## **Electrical performance in test fixture**
**==> picture [316 x 258] intentionally omitted <==**
**----- Start of picture text -----**<br>
24<br>a o_o mM<br>C<br>22 A il<br>A B i<br>INC i<br>20<br>OA Co on E i<br>R<br>OT Co on BE il<br>18<br>Oo ono<br>16 ATA<br>SS Coon ono<br>OO<br>14 Coon CnC<br>TCA<br>Coon oo<br>A<br>12<br>ET<br>OCs<br>10<br>ONC ono<br>8 PCIE INCTC<br>1<br>COCO Cont St<br>6<br>2 3 4 5 6 7<br>10 10 10 10 10 10<br>R [Ω]<br>BE<br>[V]<br>.<br>BR)CER<br>(<br>V<br>**----- End of picture text -----**<br>
**Figure 5 Collector emitter breakdown voltage** _**V**_ **(BR)CER = f(** _**R**_ **BE)**
_Note:_
_The above figure shows the collector-emitter breakdown voltage V_ (BR)CER _with a resistor R_ BE _between base and emitter. Only for very high R_ BE _values ("open base") the breakdown voltage V_ (BR)CER _is as low as V_ (BR)CEO _(here 6.6 V). With decreasing R_ BE _values V_ (BR)CER _increases, e.g. at R_ BE _= 10 k_ Ω _to V_ (BR)CEO _= 10 V. In the application the biasing base resistance together with block capacitors take over the function of R_ BE _and allows the RF voltage amplitude to swing up to voltages much higher than V_ (BR)CEO _, without clipping. Due to this effect the transistor can be biased at V_ CE _= 5 V and still high RF output powers achieved, see the OP_ 1dB _values reported in_ _**Chapter 4.2** ._
Datasheet
10
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
## **4.4 Characteristic AC diagrams**
**==> picture [512 x 582] intentionally omitted <==**
**----- Start of picture text -----**<br>
25<br>20<br>3.00V<br> 4.00V<br> 5.00V<br> 2.00V<br>15<br>10<br>5<br> 1.00V<br>0.50V<br>0<br>0 100 200 300 400 500 600<br>IC [mA]<br>Figure 6 Transition frequency f T = f( I C), f = 1 GHz, V CE = parameter<br>3<br>2.6<br>2.2<br> 1.00V<br>1.8<br> 2.00V<br>1.4<br> 3.00V<br> 4.00V<br>5.00V<br>1<br>0 100 200 300 400 500 600<br>IC [mA]<br> [GHz]<br>fT<br>CCB [pF]<br>**----- End of picture text -----**<br>
**Figure 7 Collector base capacitance** _**C**_ **CB = f(** _**I**_ **C),** _**f**_ **= 30 MHz,** _**V**_ **CB = parameter**
Datasheet
v3.0 2018-09-26
11
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [316 x 272] intentionally omitted <==**
**----- Start of picture text -----**<br>
36<br>G<br>ms<br>33<br>30<br>27<br>24<br>21<br>18<br>G<br>ma<br>15<br>12<br>9<br>6<br>3 |S 21 | [2]<br>0<br>0 1 2 3 4 5 6<br>f [GHz]<br>G [dB]<br>**----- End of picture text -----**<br>
**Figure 8 Gain** _**G**_ **ms,** _**G**_ **ma, I** _**S**_ **21I[2] = f(** _**f**_ **),** _**V**_ **CE = 5 V,** _**I**_ **C = 250 mA**
**==> picture [316 x 266] intentionally omitted <==**
**----- Start of picture text -----**<br>
36<br>33<br> 0.15GHz<br>30<br>27<br> 0.45GHz<br>24<br> 0.90GHz<br>21<br> 1.50GHz<br>18<br> 1.80GHz<br> 2.60GHz<br>15<br>3.50GHz<br>12<br>9<br>6<br>0 100 200 300 400 500 600<br>IC [mA]<br> [dB]<br>max<br>G<br>**----- End of picture text -----**<br>
**Figure 9 Maximum power gain** _**G**_ **max = f(** _**I**_ **C),** _**V**_ **CE = 5 V,** _**f**_ **= parameter**
Datasheet
12
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [316 x 271] intentionally omitted <==**
**----- Start of picture text -----**<br>
36<br>33<br> 0.15GHz<br>30<br>27<br> 0.45GHz<br>24<br> 0.90GHz<br>21<br> 1.50GHz<br>18 1.80GHz<br> 2.60GHz<br>15<br>3.50GHz<br>12<br>9<br>6<br>0 1 2 3 4 5 6 7<br>VCE [V]<br> [dB]<br>max<br>G<br>**----- End of picture text -----**<br>
**Figure 10 Maximum power gain** _**G**_ **max = f(** _**V**_ **CE),** _**I**_ **C = 250 mA,** _**f**_ **= parameter**
**==> picture [322 x 290] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>4.0<br>5.0<br>0.4<br>3<br>0.3 3.0<br>6.0<br>4<br>0.2 5<br>2.0 0.01 to 6 GHz<br>0.1 10<br>0.1 0.2 0.3 0.4 0.5 1 1.5 2 3 4 5<br>0<br>1.0 0.01<br>−0.1 −10<br>−0.2 −5<br>−4<br>−0.3<br>−3<br>−0.4<br>−0.5 −2 70 mA<br>150 mA<br>−1.5<br>−1 200 mA<br>250 mA<br>**----- End of picture text -----**<br>
**Figure 11 Input reflection coefficient** _**S**_ **11 = f(** _**f**_ **),** _**V**_ **CE = 5 V,** _**I**_ **C = parameter**
Datasheet
13
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [323 x 290] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>0.4<br>5.0 3<br>0.3 4.0 6.0<br>4<br>0.2 3.0 5<br>0.01 to 6 GHz<br>2.0<br>0.1 10<br>1.0<br>0.1 0.2 0.3 0.4 0.5 1 1.5 2 3 4 5<br>0<br>−0.1 0.01 −10<br>−0.2 −5<br>−4<br>−0.3<br>−3<br>−0.4<br>−0.5 −2 70 mA<br>−1.5 150 mA<br>−1 200 mA<br>250 mA<br>**----- End of picture text -----**<br>
**Figure 12 Output reflection coefficient** _**S**_ **22 = f(** _**f**_ **),** _**V**_ **CE = 5 V,** _**I**_ **C = parameter**
**==> picture [331 x 290] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>0.4<br>3<br>0.3<br>4<br>0.2 5<br>0.45<br>0.45 to 3.5 GHz<br>0.1 10<br>0.9<br>0.1 0.2 0.3 0.4 0.5 1 1.5 2 3 4 5<br>0<br>1.5<br>−0.1 −10<br>1.8<br>−0.2 −5<br>−4<br>2.6<br>−0.3<br>−3<br>3.0<br>−0.4<br>3.5<br>−0.5 −2<br>70 mA<br>−1.5 150 mA<br>−1 200 mA<br>250 mA<br>**----- End of picture text -----**<br>
**Figure 13 Source impedance for minimum noise figure** _**Z**_ **S,opt = f(** _**f**_ **),** _**V**_ **CE = 5 V,** _**I**_ **C = parameter**
Datasheet
v3.0 2018-09-26
14
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [316 x 266] intentionally omitted <==**
**----- Start of picture text -----**<br>
5<br>4.5<br>4<br>3.5<br>3<br>2.5<br>IC = 250 mA<br>I = 200 mA<br>2 C<br>IC = 150 mA<br>1.5<br>IC = 70 mA<br>1<br>0 0.5 1 1.5 2 2.5 3 3.5 4<br>f [GHz]<br> [dB]<br>min<br>NF<br>**----- End of picture text -----**<br>
**Figure 14 Noise figure** _**NF**_ **min = f(** _**f**_ **),** _**V**_ **CE = 5 V,** _**Z**_ **S =** _**Z**_ **S,opt,** _**I**_ **C = parameter**
**==> picture [316 x 265] intentionally omitted <==**
**----- Start of picture text -----**<br>
5<br>4.5<br>4<br>3.5<br>3<br>2.5<br>f = 3.5 GHz<br>f = 2.6 GHz<br>2<br>f = 1.8 GHz<br>f = 1.5 GHz<br>1.5<br>1<br>0 50 100 150 200 250<br>IC [mA]<br> [dB]<br>min<br>NF<br>**----- End of picture text -----**<br>
**Figure 15 Noise figure** _**NF**_ **min = f(** _**I**_ **C),** _**V**_ **CE = 5 V,** _**Z**_ **S =** _**Z**_ **S,opt,** _**f**_ **= parameter**
Datasheet
v3.0 2018-09-26
15
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [316 x 264] intentionally omitted <==**
**----- Start of picture text -----**<br>
8<br>7.5<br>7<br>6.5<br>6<br>5.5<br>5<br>4.5<br>f = 3.5 GHz<br>4<br>f = 2.6 GHz<br>3.5<br>f = 1.8 GHz<br>3<br>f = 1.5 GHz<br>2.5<br>2<br>0 50 100 150 200 250<br>IC [mA]<br> [dB]<br>50<br>NF<br>**----- End of picture text -----**<br>
**Figure 16**
**Noise figure** _**NF**_ **50 = f(** _**I**_ **C),** _**V**_ **CE = 5 V,** _**Z**_ **S = 50 Ω,** _**f**_ **= parameter**
**==> picture [293 x 291] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>0.4<br>3<br>0.3<br>21.3 4<br>0.2 5<br>23.4<br>0.1 24.3 10<br>0 0.1 0.2 26.50.3 0.4 02.56 25.2 213.9 1.5 2 3 4 5<br>27<br>−0.1 −10<br>25.6 24.7<br>−0.2 −5<br>23.4 −4<br>−0.3<br>21.3 −3<br>−0.4<br>−0.5 −2<br>−1.5<br>−1<br>**----- End of picture text -----**<br>
**Figure 17 Load pull contour** _**OP**_ **1dB [dBm],** _**V**_ **CE = 5 V,** _**I**_ **C = 250 mA,** _**f**_ **= 900 MHz**
Datasheet
16
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [293 x 291] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>0.4<br>3<br>0.3<br>32.5 4<br>0.2 5<br>34.7<br>0.1 10<br>35.7<br>0.1 0.2 0.3 0.4 0.5 1 1.5 2 3 4 5<br>0 37.9 37.4<br>36.3<br>−0.1 38.5 −10<br>36.8<br>−0.2 −5<br>35.2 −4<br>−0.3<br>33 −3<br>−0.4<br>−0.5 −2<br>−1.5<br>−1<br>**----- End of picture text -----**<br>
**Figure 18 Load pull contour** _**OIP**_ **3 [dBm],** _**V**_ **CE = 5 V,** _**I**_ **C = 250 mA,** _**f**_ **= 900 MHz**
**==> picture [293 x 291] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>1.5<br>0.5 2<br>0.4<br>3<br>0.3 14.4<br>16 4<br>16.5<br>0.2 5<br>0.1 19.6 19 18 17 10<br>0.1 0.2 0.3 0.4 0.5 1 1.5 2 3 4 5<br>0<br>18.5<br>−0.1 −10<br>17.5<br>16.5<br>−0.2 15.5 −5<br>−4<br>−0.3 13.4 −3<br>−0.4<br>−0.5 −2<br>−1.5<br>−1<br>**----- End of picture text -----**<br>
**Figure 19 Load pull contour gain** _**G**_ **[dB],** _**V**_ **CE = 5 V,** _**I**_ **C = 250 mA,** _**f**_ **= 900 MHz**
Datasheet
v3.0 2018-09-26
17
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [316 x 246] intentionally omitted <==**
**----- Start of picture text -----**<br>
80 300<br>IP1dB<br>70 280<br>I<br>C<br>60 260<br>PAE<br>50 240<br>40 220<br>30 200<br>G<br>20 180<br>Pout<br>10 160<br>0 140<br>−20 −15 −10 −5 0 5 10 15 20<br>P<br>in [dBm]<br> [mA]<br>IC<br>Pout [dBm], Gain [dB], PAE [%]<br>**----- End of picture text -----**<br>
**Figure 20** _**P**_ **out,** _**Gain**_ **,** _**I**_ **C,** _**PAE**_ **= f(** _**P**_ **in),** _**V**_ **CE = 5 V,** _**I**_ **Cq = 155 mA,** _**f**_ **= 900 MHz,** _**Z**_ **L =** _**Z**_ **L,opt (** _**P**_ **out)**
**==> picture [316 x 242] intentionally omitted <==**
**----- Start of picture text -----**<br>
60 290<br>IP1dB<br>50<br>40 280<br>30<br> G<br>20 270<br>Pout PAE<br>10<br> I<br>C<br>0 260<br>−10<br>−20 250<br>−25 −20 −15 −10 −5 0 5 10 15<br>P<br>in [dBm]<br> [mA]<br>IC<br>Pout [dBm], Gain [dB], PAE [%]<br>**----- End of picture text -----**<br>
**Figure 21** _**P**_ **out,** _**Gain**_ **,** _**I**_ **C,** _**PAE**_ **= f(** _**P**_ **in),** _**V**_ **CE = 5 V,** _**I**_ **Cq = 250 mA,** _**f**_ **= 900 MHz,** _**Z**_ **L =** _**Z**_ **L,opt (** _**P**_ **out)**
Datasheet
18
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Electrical performance in test fixture**
**==> picture [512 x 562] intentionally omitted <==**
**----- Start of picture text -----**<br>
50 280<br>IP1dB<br>40 275<br> I<br>C<br>30 270<br>Pout<br>20 265<br> G<br>10 260<br>PAE<br>0 255<br>−10 250<br>−25 −20 −15 −10 −5 0 5 10 15<br>P<br>in [dBm]<br>Figure 22 P out, Gain , I C, PAE = f( P in), V CE = 5 V, I Cq = 250 mA, f = 2.6 GHz, Z L = Z L,opt ( P out)<br>39<br>38<br>37<br>36<br>35<br>34<br>33<br>32<br>50 100 150 200 250<br>IC [mA]<br> [mA]<br>IC<br>Pout [dBm], Gain [dB], PAE [%]<br>OIP3 [dBm]<br>**----- End of picture text -----**<br>
**Figure 23**
_**OIP**_ **3 = f(** _**I**_ **C),** _**V**_ **CE = 5 V,** _**f**_ **= 900 MHz,** _**Z**_ **L =** _**Z**_ **L,opt (** _**P**_ **out)**
_Note: The curves shown in this chapter have been generated using typical devices but shall not be understood as a guarantee that all devices have identical characteristic curves. T_ A _= 25 °C._
Datasheet
19
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Package information SOT89**
## **5 Package information SOT89**
**==> picture [275 x 139] intentionally omitted <==**
**----- Start of picture text -----**<br>
4.5 ±0.1<br>B<br>45˚ 1.5 [±0.1]<br>0.25 ±0.05 0.2 MAX. [1)] 1.6 ±0.2<br>0.15<br>1 2 3<br>1.5 0.35 ±0.1<br>0.45 -0.1 [+0.2]<br>0.15 M B x3<br>3<br>0.2 B<br>1) Ejector pin markings possible SOT89-PO V02<br>1) ±0.1 +0.1 -0.15<br>1±0.1 2.5 4±0.25 2.75<br>±0.2<br>1<br>**----- End of picture text -----**<br>
## **Figure 24 Package outline (dimensions in mm)**
**==> picture [101 x 127] intentionally omitted <==**
**----- Start of picture text -----**<br>
2.0<br>0.8<br>0.8 0.7<br>2.5<br>1.0<br>1.2<br>**----- End of picture text -----**<br>
**==> picture [29 x 5] intentionally omitted <==**
**----- Start of picture text -----**<br>
SOT89-FP V02<br>**----- End of picture text -----**<br>
## **Figure 25 Foot print (dimension in mm)**
**==> picture [131 x 45] intentionally omitted <==**
**==> picture [512 x 172] intentionally omitted <==**
**----- Start of picture text -----**<br>
Figure 26 Marking layout example<br>8<br>4 0.2<br>4.3 1.6<br>ALL DIMENSIONS ARE IN UNITS MM<br>THE DRAWING IS IN COMPLIANCE WITH ISO 128 & PROJECTION METHOD 1 [ ]<br>Figure 27 Tape information<br>12<br>4.6<br>**----- End of picture text -----**<br>
Datasheet
20
v3.0 2018-09-26
**BFQ790 High linearity RF medium power transistor**
**==> picture [105 x 47] intentionally omitted <==**
## **Revision history**
## **Revision history**
|**Document**<br>**version**|**Date of**<br>**release**|**Description of changes**|
|---|---|---|
|3.0|2018-09-26|New datasheet layout.|
Datasheet
21
v3.0 2018-09-26
## **Trademarks**
All referenced product or service names and trademarks are the property of their respective owners.
**Edition 2018-09-26 IMPORTANT NOTICE Published by** The information given in this document shall in no event be regarded as a guarantee of conditions or **Infineon Technologies AG** characteristics (“Beschaffenheitsgarantie”) . **81726 Munich, Germany** With respect to any examples, hints or any typical values stated herein and/or any information regarding the **© 2018 Infineon Technologies AG** application of the product, Infineon Technologies hereby disclaims any and all warranties and liabilities of **All Rights Reserved.** any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party.
**Do you have a question about any aspect of this document?** In addition, any information given in this document is **Email: erratum@infineon.com** subject to customer’s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning **Document reference** customer’s products and any use of the product of **IFX-hws1468299808712** Infineon Technologies in customer’s applications.
## **WARNINGS**
Due to technical requirements products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office.
Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury
The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of customer’s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application.
Updated at April 21, 2026
Infineon Technologies is a globally recognized leader in semiconductor solutions, renowned for driving innovation in power management, energy efficiency, and modern mobility. With a strong legacy of engineering excellence, the company provides highly reliable components designed to meet the rigorous demands of industrial, automotive, and advanced commercial applications. The core of our Infineon portfolio is centered on their industry-leading discrete semiconductors. We offer an extensive selection of single and dual MOSFETs, alongside a robust range of single IGBTs and advanced IGBT modules. These flagship power transistors are essential for high-efficiency power conversion and motor control, providing engineers with superior thermal performance and minimized switching losses. Beyond advanced field-effect transistors, the selection includes a comprehensive array of diodes and rectifiers, heavily featuring Schottky diodes, as well as fast-recovery and RF/PIN diodes. This power foundation is further supported by bipolar transistors, intelligent power modules, and thyristor SCR modules, delivering the critical building blocks required for complex power system designs. To support broader system integration, the portfolio also encompasses specialized solutions such as solid-state relays, AC/DC LED driver ICs, and Bluetooth communications modules. From high-power industrial rectifiers to wireless connectivity adapters, Infineon equips designers with the precision components needed to build efficient, scalable, and fully connected electronic systems.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →