# Power MOSFET, N Channel, 30 V, 40 A, 0.0046 ohm, TO-251AA, Through Hole

![Product image](https://novapart.co/image/farnell:1752193/)

**URL**: https://novapart.co/products/STU85N3LH5/power-mosfet-n-channel-30-v-40-a-00046-ohm-to
**SKU**: STU85N3LH5
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || FETs || Single MOSFETs
**Price**: €0.6650
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| No. Of Pins | 3Pins |
| Channel Type | N Channel |
| Power Dissipation | 70W |
| Transistor Mounting | Through Hole |
| Transistor Polarity | N Channel |
| Power Dissipation Pd | 70W |
| Rds(On) Test Voltage | 10V |
| On Resistance Rds(On) | 0.0046ohm |
| Transistor Case Style | TO-251AA |
| Drain Source Voltage Vds | 30V |
| Operating Temperature Max | 175°C |
| Continuous Drain Current Id | 40A |
| Drain Source On State Resistance | 0.0046ohm |
| Gate Source Threshold Voltage Max | 2.5V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1752193/)

**==> picture [61 x 39] intentionally omitted <==**

## **STD85N3LH5 STP85N3LH5, STU85N3LH5** 

## N-channel 30 V, 0.0042 Ω , 80 A, DPAK, TO-220, IPAK STripFET™ V Power MOSFET 

## **Features** 

|**Type**|**VDSS**|**RDS(on)max.**|**ID**|
|---|---|---|---|
|STD85N3LH5|30 V|< 0.005Ω|80 A|
|STP85N3LH5||||
|STU85N3LH5||||



- RDS(on) * Qg industry benchmark 

- Extremely low on-resistance RDS(on) 

- High avalanche ruggedness 

**==> picture [190 x 128] intentionally omitted <==**

**----- Start of picture text -----**<br>
3<br>3<br>1 2<br>1<br>DPAK<br>IPAK<br>3<br>2<br>1<br>TO-220<br>**----- End of picture text -----**<br>


- Low gate drive power losses 

## **Application** 

Switching applications 

## **Description** 

This product utilizes the 5[th ] generation of design rules of ST’s proprietary STripFET[TM] technology. The lowest available RDS(on)*Qg, in the standard packages, makes this device suitable for the most demanding DC-DC converter applications, where high power density is to be achieved. 

## **Figure 1. Internal schematic diagram** 

**==> picture [112 x 164] intentionally omitted <==**

**Table 1. Device summary** 

|**Order codes**|**Marking**|**Package**|**Packaging**|
|---|---|---|---|
|STD85N3LH5|85N3LH5|DPAK|Tape and reel|
|STP85N3LH5||TO-220|Tube|
|STU85N3LH5||IPAK||



1/16 

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Doc ID 13833 Rev 7 

_www.st.com_ 

|**Contents**|**STD85N3LH5, STP85N3LH5, STU85N3LH5**|
|---|---|
|**Contents**||
|**1**|**Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3**|
|**2**|**Electrical characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4**|
||2.1<br>Electrical characteristics (curves)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|**3**|**Test circuit     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8**|
|**4**|**Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10**|
|**5**|**Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14**|
|**6**|**Revision history  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15**|



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**STD85N3LH5** 

**Electrical ratings** 

## **1 Electrical ratings** 

## **Table 2. Absolute maximum ratings** 

|**Table 2.**|**Absolute maximum ratings**|||
|---|---|---|---|
|**Symbol**|**Parameter**|**Value**|**Unit**|
|VDS|Drain-source voltage (VGS= 0)|30|V|
|VDS|Drain-source voltage (VGS= 0) @ TJMAX|35|V|
|VGS|Gate-source voltage|± 22|V|
|ID<br>(1)|Drain current (continuous) at TC= 25 °C|80|A|
|ID|Drain current (continuous) at TC= 100 °C|55|A|
|IDM<br>(2)|Drain current (pulsed)|320|A|
|PTOT|Total dissipation at TC= 25 °C|70|W|
||Derating factor|0.47|W/°C|
|EAS<br>(3)|Single pulse avalanche energy|165|mJ|
|Tstg|Storage temperature|-55 to 175|°C|
|Tj|Max. operating junction temperature|175|°C|



1. Limited by wire bonding 

2. Pulse width limited by safe operating area 

3. Starting Tj = 25°C, ID = 40 A, VDD = 25 V 

**Table 3. Thermal resistance** 

|**Table 3.**|**Thermal resistance**|||||
|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Value**|||**Unit**|
|||**TO-220**|**DPAK**|**IPAK**||
|Rthj-case|Thermal resistance junction-case max|2.14|||°C/W|
|Rthj-amb|Thermal resistance junction-amb max|62.5||100|°C/W|
|Rthj-pcb|Thermal resistance junction-pcb max||100||°C/W|
|Tl|Maximum lead temperature for<br>soldering purpose|275|||°C|



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**STD85N3LH5, STP85N3LH5, STU85N3LH5** 

**Electrical characteristics** 

## **2 Electrical characteristics** 

(TCASE = 25 °C unless otherwise specified) 

## **Table 4. Static** 

|**Table 4.**|**Static**||||||
|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|V(BR)DSS|Drain-source breakdown<br>Voltage|ID= 250 µA, VGS= 0|30|||V|
|IDSS|Zero gate voltage drain<br>current (VGS= 0)|VDS= 30 V<br>VDS= 30 V,Tc = 125 °C|||1<br>10|µA<br>µA|
|IGSS|Gate body leakage current<br>(VDS= 0)|VGS= ± 22 V|||±100|nA|
|VGS(th)|Gate threshold voltage|VDS= VGS, ID= 250 µA|1|1.8|2.5|V|
|RDS(on)|Static drain-source on<br>resistance|VGS= 10 V, ID= 40 A<br>SMD version||0.042|0.005|Ω|
|||VGS= 10 V, ID= 40 A||0.0046|0.0054|Ω|
|||VGS= 5 V, ID= 40 A<br>SMD version||0.0052|0.0065|Ω|
|||VGS= 5 V, ID= 40 A||0.0058|0.0071|Ω|



## **Table 5. Dynamic** 

|**Table 5.**|**Dynamic**||||||
|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|Ciss<br>Coss<br>Crss|Input capacitance<br>Output capacitance<br>Reverse transfer<br>capacitance|VDS= 25 V, f=1 MHz,<br>VGS= 0||1850<br>380<br>58||pF<br>pF<br>pF|
|Qg<br>Qgs<br>Qgd|Total gate charge<br>Gate-source charge<br>Gate-drain charge|VDD= 15 V, ID= 80 A<br>VGS= 5 V<br>_Figure 16_||14<br>6.8<br>4.7||nC<br>nC<br>nC|
|Qgs1<br>Qgs2|Pre Vthgate-to-source<br>charge<br>Post Vthgate-to-source<br>charge|VDD= 15 V, ID= 80 A<br>VGS= 5 V<br>_Figure 16_||2.3<br>4.5||nC<br>nC|
|RG|Gate input resistance|f = 1 MHz gate bias<br>Bias = 0 test signal<br>level = 20 mV<br>open drain||1.2||Ω|



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**STD85N3LH5** 

**Electrical characteristics** 

## **Table 6. Switching on/off (inductive load)** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|td(on)<br>tr|Turn-on delay time<br>Rise time|VDD= 15 V, ID= 40 A,<br>RG= 4.7Ω,VGS= 5 V<br>_Figure 15_||6<br>14||ns<br>ns|
|td(off)<br>tf|Turn-off delay time<br>Fall time|||23.6<br>10.8||ns<br>ns|



## **Table 7. Source drain diode** 

|**Table 7.**|**Source drain diode**||||||
|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|ISD<br>ISDM<br>(1)|Source-drain current<br>Source-drain current (pulsed)||||80<br>320|A<br>A|
|VSD<br>(2)|Forward on voltage|ISD= 40 A, VGS= 0|||1.1|V|
|trr<br>Qrr<br>IRRM|Reverse recovery time<br>Reverse recovery charge<br>Reverse recovery current|ISD= 80 A,<br>di/dt = 100 A/µs,<br>VDD= 20 V<br>_Figure 17_||31.8<br>26.1<br>1.6||ns<br>nC<br>A|



1. Pulse width limited by safe operating area 

2. Pulsed: pulse duration = 300 µs, duty cycle 1.5% 

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**STD85N3LH5, STP85N3LH5, STU85N3LH5** 

**Electrical characteristics** 

## **2.1 Electrical characteristics (curves)** 

**Figure 2. Safe operating area** 

## **Figure 3. Thermal impedance** 

**==> picture [157 x 155] intentionally omitted <==**

**==> picture [161 x 155] intentionally omitted <==**

## **Figure 4. Output characteristics** 

## **Figure 5. Transfer characteristics** 

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**Figure 6. Normalized BVDSS vs temperature** 

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**----- Start of picture text -----**<br>
ID AM03359v1<br>(A)<br>160<br>140<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>0 1 2 3 VGS(V)<br>**----- End of picture text -----**<br>


**Figure 7. Static drain-source on resistance** 

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**STD85N3LH5** 

**Electrical characteristics** 

## **Figure 8. Gate charge vs gate-source voltage Figure 9. Capacitance variations** 

**==> picture [179 x 155] intentionally omitted <==**

**==> picture [171 x 156] intentionally omitted <==**

## **Figure 10. Normalized gate threshold voltage Figure 11. Normalized on resistance vs vs temperature temperature** 

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## **Figure 12. Source-drain diode forward characteristics** 

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**Test circuit** 

## **3 Test circuit** 

**==> picture [399 x 21] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 13. Switching times test circuit for  Figure 14. Gate charge test circuit<br>resistive load<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
VDD<br>12V 47kΩ<br>1kΩ<br>100nF<br>RL 2200 3.3<br>µF µF<br>VDD IG=CONST<br>VD Vi=20V=VGMAX 100Ω D.U.T.<br>VGS<br>2200<br>RG D.U.T. µF 2.7kΩ VG<br>PW<br>47kΩ<br>1kΩ<br>PW<br>AM01468v1 AM01469v1<br>Figure 15. Test circuit for inductive load  Figure 16. Unclamped inductive load test<br>switching and diode recovery times circuit<br>**----- End of picture text -----**<br>


**==> picture [463 x 183] intentionally omitted <==**

**----- Start of picture text -----**<br>
L<br>A A A<br>D<br>G D.U.T. FASTDIODE L=100µH VD 2200 3.3<br>S B 3.3 1000 µF µF VDD<br>25 Ω B B D µF µF VDD ID<br>G<br>RG S<br>Vi D.U.T.<br>Pw<br>AM01470v1 AM01471v1<br>Figure 17. Unclamped inductive waveform Figure 18. Switching time waveform<br>**----- End of picture text -----**<br>


**==> picture [463 x 162] intentionally omitted <==**

**----- Start of picture text -----**<br>
V(BR)DSS ton toff<br>VD tdon tr tdoff tf<br>90% 90%<br>IDM<br>10%<br>ID 0 10% VDS<br>VDD VDD 90%<br>VGS<br>AM01472v1 0 10% AM01473v1<br>**----- End of picture text -----**<br>


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Doc ID 13833 Rev 7<br>**----- End of picture text -----**<br>


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**STD85N3LH5** 

**Test circuit** 

## **Figure 19. Gate charge waveform** 

**==> picture [186 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
Id<br>Vds<br>Vgs<br>Vgs(th)<br>Qgs1 Qgs2 Qgd<br>**----- End of picture text -----**<br>


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**STD85N3LH5, STP85N3LH5, STU85N3LH5** 

**Package mechanical data** 

## **4 Package mechanical data** 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 

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**STD85N3LH5** 

**Package mechanical data** 

## **TO-220 type A mechanical data** 

||||**mm**|||
|---|---|---|---|---|---|
||**Dim**|||||
|||**Min**|**Typ**|**Max**||
||A|4.40||4.60||
||b|0.61||0.88||
||b1|1.14||1.70||
||c|0.48||0.70||
||D|15.25||15.75||
||D1||1.27|||
||E|10||10.40||
||e|2.40||2.70||
||e1|4.95||5.15||
||F|1.23||1.32||
||H1|6.20||6.60||
||J1|2.40||2.72||
||L|13||14||
||L1|3.50||3.93||
||L20||16.40|||
||L30||28.90|||
||∅P|3.75||3.85||
||Q|2.65||2.95||



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0015988_Rev_S<br>**----- End of picture text -----**<br>


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**Package mechanical data** 

||||**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**|**TO-251 (IPAK) mechanical data**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||
||||||||||||||
|**DIM.**||||||||**mm.**|||||
||||**min.**|||||**typ**||||**max.**|
|A|||2.20|||||||||2.40|
|A1|||0.90|||||||||1.10|
|b|||0.64|||||||||0.90|
|b2||||||||||||0.95|
|b4|||5.20|||||||||5.40|
|c|||0.45|||||||||0.60|
|c2|||0.48|||||||||0.60|
|D|||6.00|||||||||6.20|
|E|||6.40|||||||||6.60|
|e||||||||2.28|||||
|e1|||4.40|||||||||4.60|
|H||||||||16.10|||||
|L|||9.00|||||||||9.40|
|(L1)|||0.80|||||||||1.20|
|L2||||||||0.80|||||
|V1||||||||10|o||||
||||||||||||||
|||||||||||||0068771_H|
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**STD85N3LH5** 

**Package mechanical data** 

||||**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|**TO-252 (DPAK) mechanical data**|
|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||||||
|||||||||||||
|**DIM.**||||||**mm.**||||||
||||**min.**|||**typ**|||||**max.**|
|A|||2.20||||||||2.40|
|A1|||0.90||||||||1.10|
|A2|||0.03||||||||0.23|
|b|||0.64||||||||0.90|
|b4|||5.20||||||||5.40|
|c|||0.45||||||||0.60|
|c2|||0.48||||||||0.60|
|D|||6.00||||||||6.20|
|D1||||||5.10||||||
|E|||6.40||||||||6.60|
|E1||||||4.70||||||
|e||||||2.28||||||
|e1|||4.40||||||||4.60|
|H|||9.35||||||||10.10|
|L|||1|||||||||
|L1||||||2.80||||||
|L2||||||0.80||||||
|L4|||0.60||||||||1|
|R||||||0.20||||||
|||||o|||||||~~8 ~~o|
|~~V~~|||~~0~~|||||||||
|||||||||||||
|||||||||||0068772_G||
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**Packaging mechanical data** 

## **5 Packaging mechanical data** 

## **DPAK FOOTPRINT** 

**==> picture [360 x 396] intentionally omitted <==**

**----- Start of picture text -----**<br>
All dimensions are in millimeters<br>TAPE AND REEL SHIPMENT<br>REEL MECHANICAL DATA<br>Access40 mm min.hole A . T mm inch<br>——- at slot location DIM.<br>MIN. MAX. MIN. MAX.<br>B A 330 12.992<br>B 1.5 0.059<br>A DA a{ LAN_ / —t {N GCD 12.816.420.2 13.218.4 0.5040.6450.795 0.5200.724<br>Full radius \ ape slot atG measuredhub N 50 1.968<br>tape start<br>2.5mm min. T 22.4 0.881<br>OO width<br>BASE QTY BULK QTY<br>TAPE MECHANICAL DATA<br>2500 2500<br>mm inch<br>DIM.<br>MIN. MAX. MIN. MAX.<br>7 —<br>A0 6.8 7 0.267 0.275<br>ee ee Ko D - re : a<br>B0 10.4 10.6 0.409 0.417<br>ee plrarce nape<br>Bien Ne 8<br>B1 12.1 0.476<br>D 1.5 1.6 0.059 0.063<br>SSa D1 1.5 0.059 Oy EEEAN<br>E 1.65 1.85 0.065 0.073<br>a F 7.4 ee 7.6 0.291 0.299 For machine ret | Ao, | Le, | Center line<br>pp K0 2.55 2.75 0.100 0.108 [“core] ' User Direction of Feed of Cavi ‘<br>P0 3.9 4.1 0.153 0.161<br>ee ee ee ee ue<br>P1 7.9 8.1 0.311 0.319<br>P2 1.9 2.1 0.075 0.082<br>R 40 1.574<br>a W a 15.7 16.3 ee 0.618 0.641 FEED DIRECTION, Bending radius<br>**----- End of picture text -----**<br>


14/16 Doc ID 13833 Rev 7 ~~©~~ 

**STD85N3LH5** 

**Revision history** 

## **6 Revision history** 

**Table 8. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|19-Oct-2007|1|First release|
|20-Feb-2008|2|Minor text changes to improve readability|
|21-Jul-2008|3|– Added new package, mechanical data: TO-220<br>– _Figure 2: Safe operating area_has been corrected<br>– _Figure 7: Static drain-source on resistance_updated<br>– New value on_Table 2: Absolute maximum ratings_|
|20-Aug-2008|4|Added max value on VGS(th)(_Table 4_)|
|25-Sep-2008|5|VGSvalues has been changed on_Table 2_and_Table 4_|
|22-Jan-2009|6|Corrected value on_Table 3: Thermal resistance_|
|01-Jul-2010|7|VDSvalues has been changed on_Table 4_|



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**STD85N3LH5, STP85N3LH5, STU85N3LH5** 

## **Please Read Carefully:** 

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## Links

- [View this product on Novapart](https://novapart.co/products/STU85N3LH5/power-mosfet-n-channel-30-v-40-a-00046-ohm-to)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/stmicroelectronics/stu85n3lh5/mosfet-n-ch-30v-80a-ipak/dp/1752193)
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