# Small Signal Schottky Diode, Dual Common Cathode, 80 V, 40 A, 920 mV, 200 A, 175 °C

![Product image](https://novapart.co/image/farnell:2325873RL/)

**URL**: https://novapart.co/products/STPS40M80CG-TR/small-signal-schottky-diode-dual-common-cathode-80
**SKU**: STPS40M80CG-TR
**Manufacturer**: STMICROELECTRONICS
**Price**: €0.8040
**Stock**: 10+
**Lead Time**: 127 days (indicative)

## Description

Diode Configuration:Dual Common Cathode; Repetitive Reverse Voltage Vrrm Max:80V; Forward Current If(AV):40A; Forward Voltage VF Max:920mV; Forward Surge Current Ifsm Max:200A; Operati

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | STPS4 |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | TO-263 (D2PAK) |
| Diode Configuration | Dual Common Cathode |
| Forward Voltage Max | 920mV |
| Forward Surge Current | 200A |
| Reverse Recovery Time | - |
| Average Forward Current | 40A |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 80V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2325873RL/)

**==> picture [62 x 39] intentionally omitted <==**

## **STPS40M80C** 

## Power Schottk rectifier y 

## **Features** 

- High junction temperature capability 

- Optimized trade-off between leakage current and forward voltage drop 

- Low leakage current 

- Avalanche capability specified 

## **Description** 

This dual diode Schottky rectifier is suited for high frequency switch mode power supply. 

Packaged in TO-220AB, I[2] PAK and D[2] PAK, this device is particularly suited for use in notebook, game station,  LCD TV and desktop adapters, providing these applications with a good efficiency at both low and high load. 

## **Table 1. Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|2 x 20 A|
|VRRM|80 V|
|Tj (max)|175 °C|
|VF(typ)|475 mV|



**==> picture [188 x 233] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1<br>K<br>A2<br>K K<br>A2<br>A2<br>K<br>A1 A1<br>I [2] PAK D [2] PAK<br>STPS40M80CR STPS40M80CG-TR<br>K<br>A2<br>K<br>A1<br>TO-220AB<br>STPS40M80CT<br>**----- End of picture text -----**<br>


## **Figure 1. Electrical characteristics[(a)]** 

**==> picture [170 x 164] intentionally omitted <==**

**----- Start of picture text -----**<br>
I<br>V<br>"Forward"<br>I<br>2 x IO X<br>IF<br>IO X<br>VRRM<br>VAR VR<br>V<br>IR<br>VTo VF(Io) VF VF(2xIo)<br>"Reverse"<br>IAR<br>**----- End of picture text -----**<br>


- a. VARM and IARM must respect the reverse safe operating area defined in _Figure 11_ . VAR and IAR are pulse measurements (tp < 1 µs). VR, IR, VRRM and VF, are static characteristics 

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Doc ID 018718 Rev 1 

_www.st.com_ 

**Characteristics** 

**STPS40M80C** 

## **1 Characteristics** 

## **Table 2. Absolute ratings (limiting values, per diode, at Tamb = 25 °C unless otherwise specified)** 

||**otherwise specified)**|**otherwise specified)**|**otherwise specified)**|**otherwise specified)**|||
|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**||||**Value**|**Unit**|
|VRRM|Repetitive peak reverse voltage||||80|V|
|IF(RMS)|Forward rms current||||30|A|
|IF(AV)|Average forward current,δ= 0.5||Tc= 150 °C<br>Tc= 150 °C|Per diode<br>Per device|20<br>40|A|
|IFSM|Surge non repetitive<br>forward current|tp= 10 ms sinusoidal||Tc= 25 °C|200|A|
|PARM<br>(1)|Repetitive peak avalanche power||Tj= 25 °C, tp= 1 µs||10000|W|
|VARM<br>(2)|Maximum repetitive peak<br>avalanche voltage|tp< 1 µs, Tj< 150 °C, IAR< 30 A|||100|V|
|VASM<br>(2)|Maximum single pulse<br>peak avalanche voltage|tp< 1 µs, Tj< 150 °C, IAR< 30 A|||100|V|
|Tstg|Storage temperature range||||-65 to +175|°C|
|Tj|Maximum operating junction temperature(3)||||175|°C|



1. For temperature or pulse time duration deratings, please refer to figure 3 and 4. More details regarding the avalanche energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025. 

2. See _Figure 11_ 

dPtot 1 3. < condition to avoid thermal runaway for a diode on its own heatsink dTj Rth(j-a) 

## **Table 3. Thermal parameters** 

|**Table 3.**|**Thermalparameters**||||
|---|---|---|---|---|
|**Symbol**|**Parameter**||**Value**|**Unit**|
|Rth(j-c)|Junction to case|per diode|1.30|°C/W|
|||total|0.75||
|Rth(c)|Coupling||0.20|°C/W|



When the two diodes 1 and 2 are used simultaneously: 

Δ Tj(diode 1) = P(diode 1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c) 

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**Characteristics** 

**Table 4. Static electrical characteristics (per diode)** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR<br>(1)<br>Reverse leakage current|Reverse leakage current|Reverse leakage current<br>Tj= 25 °C<br>Tj= 125 °C|VR= VRRM|-|15|65|µA|
|||||-|15|40|mA|
|VF<br>(2)<br>Forward voltage drop|Forward voltage drop|Tj= 25 °C<br>Tj= 125 °C<br>Tj= 25 °C<br>Tj= 125 °C<br>Tj= 25 °C<br>Tj= 125 °C|IF= 10 A|-|0.550|0.600<br>0.510<br>0.735<br>0.635<br>0.920<br>0.795|V|
|||||-|0.475|||
||||IF= 20 A|-|0.655|||
|||||-|0.570|||
||||IF= 40 A|-|0.800|||
|||||-|0.680|||



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 = 0.475 x IF(AV) + 0.008 x IF2(RMS) 

**==> picture [458 x 369] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 2. Average forward power dissipation  Figure 3. Average forward current versus<br>versus average forward current ambient temperature<br>(per diode) ( δ  = 0.5, per diode)<br>22 PF(AV)(W) T TTTTTTTITITTTIITTTITITtTy 24 a IF(AV)(A)<br>201816 δ = t A p n. / T 2 tp P [a] SeEELEreeELEELELELL | δ = 0.5 aCLL | δ = 1 | 222018 aaeea a Rth(j-a) = Rth(j-c) a re<br>rit m a a a<br>14 e+ptt dyt ye d pe e ryy eeop δ = 0.2 EEEEKAA EHEe 16 a a aCVa a<br>12 PP Py Pepe yr δ = 0.1 ry [| TAT eet tT tt Tt 14 a |<br>δ = 0.05 12<br>10<br>8 a Z| 10 poa a a<br>ttt YI ALA TEE EELELLL LLL 8 po<br>6 POCAJ | VA ieeeEe fo 6 eeea a a<br>4 |Be| | Veet6227 4tee Peeee eee eee 4 aa|a a CC<br>20 EAE EEEE EE EEE EF EEEEF IF(AV)(A) 20 ee Tamb(°C) [—}—| ++}<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 0 25 50 75 100 125 150 175<br>Figure 4. Normalized avalanche power  Figure 5. Normalized avalanche power<br>derating versus pulse duration derating versus junction<br>temperature<br>PARM(tp) PARM(T )j<br>1 a PARM(1µs) 5 OS OD 1.2 P BO ARM(25 °C)<br>0.1 TTaPTA  aTTITIPENI 0.81 Kopai |<br>a TIT) | SESS<br>eet E+} A HF |] [|]<br>aSEH | 0.6 EeeReeeee<br>SSS | See EERE SaaS eS eee<br>0.01 ETIETI)SS 0.4 eeEES<br>Fes es<br>aes ee ee a<br>0.2<br>0.001 FETEeEe e Ee) tp(µs) | 0 PEReeEEE EEE EEE EERE EEE EEE EEE]E EEE Tj(°C)<br>0.01 0.1 1 10 100 1000 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


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**Characteristics** 

**STPS40M80C** 

## **Figure 6. Non repetitive surge peak forward Figure 7. Relative thermal impedance current versus overload duration junction to case versus pulse (maximum values, per diode) duration** 

**==> picture [445 x 332] intentionally omitted <==**

**----- Start of picture text -----**<br>
260 re IM(A) | 1.0 Zth(j-c)/Rth(j-c) ami<br>240220 ee a a a | 0.9 re a ee<br>200 a—— = a 0.8 a LeeA<br>180 = 0.7 ee<br>160 =SSS e Tc = 25 °C 0.6 PotEe Pi<br>140 SS S et ee<br>120 aee eri Tc = 75 °C 0.5 |LeeTT TT eeAet<br>10080 PSaee a T et c = 125 °C 1 0.40.3 Peete(| [itt fTeeTt iteTTTT<br>60 Fe =e ee Eeeeee<br>4020 IM yeee [ee] t Ba [a] a O 0.20.1 beet e ee Single pulse — ceWtee|eaeTe<br>0 ; δ = 0.5 - a t(s) 0.0 SeLT ATiti | TE TTT TTT TTT TT tp(s) lJ<br>1.E-03 1.E-02 1.E-01 1.E+00 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00<br>Figure 8. Reverse leakage current versus  Figure 9. Junction capacitance versus<br>reverse voltage applied reverse voltage applied<br>(typical values, per diode)typical values, per diode)ypical values, per diode)ical values, per diode)per diode)er diode)) (typical values, per diode)<br>1.E+05 IR(µA) 10000 C(pF)<br>Tj = 150 °C F = 1 MHz<br>1.E+04 Ro ) Tj = 125 °C Le re VoscTj= 30 mV= 25 °CRMS<br>SS SSS SSS SS a<br>Tj = 100 °C<br>1.E+03 e e ee<br>Tj = 75 °C 1000<br>—— ——ee<br>1.E+02<br>== eee ee ee eeee<br>———————————_—————————— Tj = 50 °C ee oe ee<br>Pa po RR<br>1.E+01 e Tj = 25 °C e P RSTRET<br>1.E+00 ee VR(V) 100 VR(V)<br>0 S 10 EE 20 30 40 P 50 60 S 70 80 | 1 (Co 10 m 100<br>**----- End of picture text -----**<br>


**Figure 8. Reverse leakage current versus reverse voltage applied (typical values, per diode)typical values, per diode)ypical values, per diode)ical values, per diode)per diode)er diode))** 

**Figure 10. Forward voltage drop versus forward current (per diode)** 

**Figure 11. Reverse safe operating area (tp < 1 µs and Tj < 150 °C)** 

**==> picture [430 x 138] intentionally omitted <==**

**----- Start of picture text -----**<br>
40 IFM(A) 30.0 Iarm (A)<br>35 eee | | | | | | | | Tj = 125 °C Yioei tA 29.0 \ To  2 Iarm (Varm) 150 °C, 1 µs<br>FEE (Maximum values) Eff 28.0 PROEPPrrrrer<br>30 | | | | | [ty] [|_| x | | N<br>A A 27.0 P[TN | | | te ft tf<br>25 FREER| | | | | [| Tj = 125 °C [7 Vi IALAEtt 26.0 TENSE<br>2015 Poeee 2 CoC eeeer (Typical values) iwPYLEa a 25.024.023.0 NeTTSNae<br>10 PEREZaEE AA (Maximum values)Tj = 25 °C |FA| | 22.0 OS~<br>5<br>0 PEEHE EB a Z| A VFM(V) | | 21.020.0 TT Pt | Varm (V) eae\<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 100 105 110 115 120 125 130 135 140 145 150<br>**----- End of picture text -----**<br>


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**STPS40M80C** 

**Characteristics** 

## **Figure 12. Thermal resistance junction to ambient versus copper surface under tab for D[2] PAK** 

**==> picture [210 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
Rth(j-a)(°C/W)<br>80<br>epoxy printed board copper thickness = 35 µm<br>70<br>60 D2PAK<br>50<br>40<br>30<br>20<br>10<br>0 SCu(cm2)<br>0 5 10 15 20 25 30 35 40<br>**----- End of picture text -----**<br>


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**STPS40M80C** 

**Package information** 

## **2 Package information** 

- Epoxy meets UL94, V0 

- Cooling method: by conduction (C) 

- Recommended torque value: 0.4 to 0.6 N·m 

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. 

**Table 5. TO-220AB dimensions** 

|**L2**|||||**A**<br>**C**<br>**D**<br>**L7**<br>**E**<br>**M**|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|
||||||||**Millimeters**||**Inches**||
||||||||**Min.**|**Max.**|**Min.**|**Max.**|
|||||||A|4.40|4.60|0.173|0.181|
|||||||C|1.23|1.32|0.048|0.051|
||||**H2**|**L5**<br>**L6**<br>**L9**<br>**L4**|||||||
|||||||D|2.40|2.72|0.094|0.107|
|||**D**|**ia**||||||||
|||||||E|0.49|0.70|0.019|0.027|
|||||**L5**||F|0.61|0.88|0.024|0.034|
||**F2**<br>**F1**||||||||||
|||||||F1|1.14|1.70|0.044|0.066|
||||||||||||
||||||||||||
|||||||F2|1.14|1.70|0.044|0.066|
|||||||G|4.95|5.15|0.194|0.202|
||||**G**|||G1|2.40|2.70|0.094|0.106|
||**F**<br>**G1**|||||H2|10|10.40|0.393|0.409|
|||||||L2|16.4 Typ.||0.645 Typ.||
|||||||L4|13|14|0.511|0.551|
|||||||L5|2.65|2.95|0.104|0.116|
|||||||L6|15.25|15.75|0.600|0.620|
||||||||||||
|||||||L7|6.20|6.60|0.244|0.259|
|||||||L9|3.50|3.93|0.137|0.154|
|||||||M|2.6 Typ.||0.102 Typ.||
|||||||Dia.|3.75|3.85|0.147|0.151|



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**Package information** 

|**Table 6.**|**Table 6.**|**Table 6.**|**D2PAK dimensions**|**D2PAK dimensions**|||||||
|---|---|---|---|---|---|---|---|---|---|---|
|**L**|||||**SS THAN 2mm**<br>**A**<br>**D**<br>**R**<br>**V2**|**Ref.**|**Dimensions**||||
||||||||**Millimeters**||**Inches**||
||||||||**Min.**|**Max.**|**Min.**|**Max.**|
||**L2**|||**E NO LE**<br>**C2**<br>**A2**<br>**M**<br>**C**<br>*|||||||
|||||||A|4.40|4.60|0.173|0.181|
||||||||||||
|||||||A1|2.49|2.69|0.098|0.106|
|||||||A2|0.03|0.23|0.001|0.009|
||**L3**|||||B|0.70|0.93|0.027|0.037|
|||||||B2<br>|1.14<br>|1.70<br>|0.045<br>|0.067<br>|
|||||||C|0.45|0.60|0.017|0.024|
|||||||C2|1.23|1.36|0.048|0.054|
||||||||||||
|||||||D|8.95|9.35|0.352|0.368|
|||||||E|10.00|10.40|0.393|0.409|
|||||||G|4.88|5.28|0.192|0.208|
|||||||L|15.00|15.85|0.590|0.624|
|||||||L2|1.27|1.40|0.050|0.055|
|||||||L3|1.40|1.75|0.055|0.069|
|||||||M|2.40|3.20|0.094|0.126|
||||||||||||
|||||||R|0.40 typ.||0.016 typ.||
|||||||V2|0°|8°|0°|8°|



**==> picture [405 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 13. D [2] PAK footprint (dimensions in mm)<br>16.90<br>10.30 5.08<br>1.30<br>3.70<br>8.90<br>**----- End of picture text -----**<br>


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**Package information** 

|**Table 7.**|**Table 7.**||**I2PAK d**|**I2PAK d**|**imensions**|**imensions**||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|**L2**<br>**L**||||||**A1**<br>**c**<br>**c2**<br>**A**|**Ref.**|**Dimensions**||||
|||||||||**Millimeters**||**Inches**||
|||||||||**Min.**|**Max.**|**Min.**|**Max.**|
|||||**E**||||||||
||||||||A|4.40|4.60|0.173|0.181|
||||||||A1|2.40|2.72|0.094|0.107|
||||||||b|0.61|0.88|0.024|0.035|
||||||||b1|1.14|1.70|0.044|0.067|
||||||||c|0.49|0.70|0.019|0.028|
|||||||||||||
|||**L1**||**e**|||c2|1.23|1.32|0.048|0.052|
||||||||D|8.95|9.35|0.352|0.368|
||||||||e|2.40|2.70|0.094|0.106|
||||||||e1|4.95|5.15|0.195|0.203|
||||||||E|10|10.40|0.394|0.409|
||||||||L|13|14|0.512|0.551|
|||||||||||||
||||||||L1|3.50|3.93|0.138|0.155|
||||||||L2|1.27|1.40|0.050|0.055|



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**Ordering information** 

## **3 Ordering information** 

## **Table 8. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty **|**Delivery mode**|
|---|---|---|---|---|---|
|STPS40M80CT|STPS40M80CT|TO-220AB|1.9 g|50|Tube|
|STPS40M80CR|STPS40M80CR|I2PAK|1.49 g|50|Tube|
|STPS40M80CG-TR|STPS40M80CG|D2PAK|1.48 g|1000|Tape and reel|



## **4 Revision history** 

**Table 9. Revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|11-Apr-2011|1|First issue.|



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## Links

- [View this product on Novapart](https://novapart.co/products/STPS40M80CG-TR/small-signal-schottky-diode-dual-common-cathode-80)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/stmicroelectronics/stps40m80cg-tr/diode-schottky-2x20a-80v-d2pak/dp/2325873RL)
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