STTH102A

**STTH102** 

Datasheet 

200 V - 1 A high efficiency ultrafast diode 

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K —\<—. A<br>A<br>A<br>K K<br>ad Lo<br>SMA DO-41<br>**----- End of picture text -----**<br>


## **Features** 

- Very low conduction losses 

- Negligible switching losses 

- Low forward voltage drop 

- High junction temperature 

- ECOPACK[®] 2 compliant 

## **Applications** 

- Switching diode 

- LED Lighting 

- Auxiliary power supply 

- Flyback diode 

## **Description** 

The STTH102 uses ST's new 200 V planar Pt doping technology, and it is specially suited for switching mode base drive and transistor circuits. 

Packaged in SMA and DO-41, the STTH102 is ideal for use as a free wheeling diode in power supplies and other power switching applications. 

|**Product summary**<br>———|**Product summary**<br>———|
|---|---|
|**Symbol**<br>———|**Value**|
|**IF(AV)**<br>———|1 A|
|**VRRM**|200 V|
|**T j(max.)**|175 °C|
|**VF(typ.)**|0.68 V|
|**trr(typ.)**|12 ns|



**DS2448** - **Rev 6** - **December 2018** For further information contact your local STMicroelectronics sales office. 

www.st.com 

**STTH102 Characteristics** 

**1** 

## **Characteristics** 

**Table 1. Absolute ratings (limiting values at 25 °C, unless otherwise specified)** 

|**Symbol**|**Parameter**|||**Value**|**Unit**|
|---|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage|||200|V|
|IF(AV)|Average forward current δ = 0.5, square wave|SMA|TL= 145 °C|1|A|
|||DO-41|TL= 130 °C|||
|IFSM|Surge non repetitive forward current|SMA|tp= 10 ms sinusoidal|40|A|
|||DO-41||50||
|Tstg|Storage temperature range|||-65 to +175|°C|
|Tj|Operating junction temperature|||+175|°C|



**Table 2. Thermal resistance parameter** 

|**Symbol**|**Parameter**|**Parameter**|**Parameter**|**Max. value**|**Unit**|
|---|---|---|---|---|---|
|Rth(j-l)|Junction to lead||SMA|30|°C/W|
||Junction to lead|Lead length = 10 mm|DO-41|50||



For more information, please refer to the following application note : 

- AN5088 : Rectifiers thermal management, handling and mounting recommendations 

**Table 3. Static electrical characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR(1)|Reverse leakage current|Tj= 25 °C|VR= VRRM|-||1|µA|
|||Tj= 125 °C||-|1|25||
|VF(2)|Forward voltage drop|Tj= 25 °C|IF= 1 A|-||0.97|V|
|||Tj= 125 °C||-|0.68|0.78||



_1. Pulse test: tp = 5 ms, δ < 2%_ 

_2. Pulse test: tp = 380 µs, δ < 2%_ 

To evaluate the conduction losses, use the following equation: 

P = 0.65 x IF(AV) + 0.130 x IF[2] (RMS) 

For more information, please refer to the following application notes related to the power losses : 

- AN604: Calculation of conduction losses in a power rectifier 

- AN4021: Calculation of reverse losses on a power diode 

**DS2448** - **Rev 6** 

**page 2/12** 

**STTH102 Characteristics** 

**Table 4. Dynamic characteristics (Tj = 25 °C unless otherwise stated)** 

|**Symbol**|**Parameters**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|trr|Reverse recovery time|IF= 0.5 A, Irr= 0.25 A, IR= 1 A|-|12|20|ns|
|tfr|Forward recovery time|IF= 1 A, dIF/dt = 50 A/ms, VFR= 1.1 VF(max.)|-|50||ns|
|VFP|Forward recovery voltage|IF= 1 A, dIF/dt = 50 A/µs|-|1.8||V|



**DS2448** - **Rev 6** 

**page 3/12** 

**STTH102 Characteristics (curves)** 

## **1.1 Characteristics (curves)** 

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Figure 1. Average forward power dissipation versus Figure 2. Average forward power dissipation versus<br>average forward current (SMA) average forward current (DO-41)<br>PF(AV)(W) PF(AV)(W)<br>1.0 1.0<br>0.9 δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 0.9 δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5<br>0.8 0.8<br>0.7 δ = 1 0.7 δ = 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>T T<br>0.2 0.2<br>0.1 IF(AV)(A) δ =tp/T tp 0.1 IF(AV)(A) δ =tp/T tp<br>0.0 0.0<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.00 0.25 0.50 0.75 1.00 1.25<br>**----- End of picture text -----**<br>


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Figure 4. (DO-41)Average forward current versus ambient<br>Figure 3. Average forward current versus ambient<br>temperature (δ = 0.5) (DO-41)<br>temperature (δ = 0.5) (SMA)<br>IF(AV)(A)<br>1.2 IF(AV)(A)<br>Rth(j-a) =Rt h(j-I) 1.2<br>1.0 Rth(j-a) =Rt h(j-I)<br>1.0<br>0.8<br>0.8<br>0.6 Rth(j-a) =120°C/W<br>0.6 Rth(j-a) =110°C/W<br>0.4<br>T 0.4<br>0.2 T<br>d [=tp/T] tp Tamb(°C) 0.2<br>0.0 d [=tp/T] tp Tamb (°C)<br>0 25 50 75 100 125 150 175 0.0<br>0 25 50 75 100 125 150 175<br>**----- End of picture text -----**<br>


**DS2448** - **Rev 6** 

**page 4/12** 

**STTH102 Characteristics (curves)** 

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Figure 5. Relative variation of thermal impedance junction<br>Figure 6. Relative variation of thermal impedance junction<br>to ambient versus pulse duration (epoxy printed circuit<br>to ambient versus pulse duration (DO-41)<br>board, e(Cu) = 35 μm,recommended pad layout) (SMA)<br>Zth(j-c)/Rth(j-c)<br>1.0 Zth(j-a)/Rth(j-a) 1.0<br>0.9<br>0.9<br>0.8<br>0.8<br>0.7<br>0.7<br>0.6<br>0.6<br>0.5<br>0.5<br>0.4<br>0.4<br>0.3<br>0.3<br>0.2<br>0.2<br>0.1 0.1 Single pulse tp( s)<br>Single pulse tp(s) 0.0<br>0.0<br>1.E-01 1.E+00 1.E+01 1.E+02 1.E+03<br>1.E-01 1.E+00 1.E+01 1.E+02 1.E+03<br>**----- End of picture text -----**<br>


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Figure 8. Junction capacitance versus reverse voltage<br>Figure 7. Forward voltage drop versus forward current<br>applied (typical values)<br>I  (A)F<br>100.0 C(pF)<br>100<br>F=1MHz<br>(maximum values)T =125°Cj VOSCT =25°C=30mVj RMS<br>10.0 T =125°Cj<br>(typical values)<br>(maximum values)T =25°Cj 10<br>1.0<br>0.1 V  (V)F VR(V)<br>1<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4<br>1 10 100 1000<br>**----- End of picture text -----**<br>


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Figure 10. Thermal resistance junction to ambient versus<br>Figure 9. Relative variations of dynamic parameters<br>copper surface under each lead (typical values)<br>versus junction temperature<br>IR M; trr; Qrr [T ] /j IR M; trr; Qrr [Tj =25°C] 200 Rth(j-a)(°C/W)<br>3.5 SMA<br>IF=I F(AV)<br>dIF/dt=200A/µs<br>VR=100V<br>3.0 150<br>QRR<br>2.5<br>100<br>2.0 trr 50 Epoxy printed board FR4, eCu = 35 µm<br>1.5<br>IRM SCu (cm²)<br>T (°C)j 0<br>1.0<br>0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0<br>25 50 75 100 125 150 175<br>**----- End of picture text -----**<br>


**DS2448** - **Rev 6** 

**page 5/12** 

**STTH102 Characteristics (curves)** 

**Figure 11. Thermal resistance versus lead length (DO-41)** 

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Rth(°C/W)<br>120<br>Rth(j-a)<br>100<br>80<br>60<br>Rth(j-I)<br>40<br>20<br>Lleads(mm)<br>0<br>5 10 15 20 25<br>**----- End of picture text -----**<br>


**DS2448** - **Rev 6** 

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**STTH102 Package information** 

## **2 Package information** 

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. 

## **2.1 DO-41 package information** 

- Epoxy meets UL 94, V0 

## **Figure 12. DO-41 package outline** 

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C A C<br>ØD<br>ØB<br>**----- End of picture text -----**<br>


**Table 5. DO-41 package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|
|**Ref.**|**Millimeters**|||**Inches (for reference only)**|||
||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|A|4.07|-|5.20|0.160|-|0.205|
|B|2.04|-|2.71|0.080|-|0.107|
|C|25.40|-||1.000|-||
|D|0.71|-|0.86|0.028|-|0.0034|



**DS2448** - **Rev 6** 

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**STTH102 SMA package information** 

## **2.2 SMA package information** 

- Epoxy meets UL94, V0 

- Cooling method : by conduction (C) 

## **Figure 13. SMA package outline** 

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E1<br>D<br>E<br>A1<br>C A2<br>L b<br>**----- End of picture text -----**<br>


**Table 6. SMA package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A1|1.90|2.45|0.074|0.097|
|A2|0.05|0.20|0.001|0.008|
|b|1.25|1.65|0.049|0.065|
|c|0.15|0.40|0.005|0.016|
|D|2.25|2.90|0.088|0.115|
|E|4.80|5.35|0.188|0.211|
|E1|3.95|4.60|0.155|0.182|
|L|0.75|1.50|0.029|0.060|



**DS2448** - **Rev 6** 

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**STTH102 SMA package information** 

## **Figure 14. SMA recommended footprint in mm (inches)** 

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1.4 2.63 1.4<br>(0.055) (0.104) (0.055)<br>1.64<br>(0.065)<br>5.43<br>(0.214)<br>**----- End of picture text -----**<br>


**DS2448** - **Rev 6** 

**page 9/12** 

**STTH102 Ordering information** 

## **3 Ordering information** 

## **Table 7. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|STTH102A|U12|SMA|0.068 g|5000|Tape and reel|
|STTH102|STTH102|DO-41|0.34 g|2000|Ammopack|
|STTH102RL|STTH102|DO-41|0.34 g|5000|Tape and reel|



**DS2448** - **Rev 6** 

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**STTH102** 

## **Revision history** 

**Table 8. Document revision history** 

|**Date**|**Revision **|**Changes**|
|---|---|---|
|Jul-2003|2A|Last update.|
|Aug-2004|3|SMA package dimensions update. Reference A1 max. changed from 2.70mm (0.106inc.) to 2.03mm<br>(0.080). SMA and DO-41 datasheets merged.|
|27-Jun-2005|4|Corrected error in title.|
|21-Nov-2006|5|Reformatted to current standards. Added Table 4. Dynamic electrical characteristics. Updated<br>dimensions table for DO-41 plastic package. Added cathode bands to package illustrations.|
|05-Dec-2018|6|Add electrical schematics of single diode and ECOPACK®2 compliant.|



**DS2448** - **Rev 6** 

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**STTH102** 

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**DS2448** - **Rev 6** 

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