# Schottky Rectifier, 15 V, 40 A, Dual Common Cathode, TO-220AB, 3 Pins, 520 mV

![Product image](https://novapart.co/image/farnell:3130032/)

**URL**: https://novapart.co/products/STPS40L15CT/schottky-rectifier-15-v-40-a-dual-common-cathode
**SKU**: STPS40L15CT
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.9660
**Stock**: 1000+
**Lead Time**: 120 days (indicative)

## Description

Repetitive Reverse Voltage Vrrm Max:15V; Forward Current If(AV):40A; Diode Configuration:Dual Common Cathode; Diode Case Style:TO-220AB; No. of Pins:3Pins; Forward Voltage VF Max:

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | - |
| Qualification | - |
| Diode Mounting | Through Hole |
| Diode Case Style | TO-220AB |
| Diode Configuration | Dual Common Cathode |
| Forward Voltage Max | 520mV |
| Forward Surge Current | 310mA |
| Average Forward Current | 40A |
| Operating Temperature Max | 125°C |
| Repetitive Peak Reverse Voltage | 15V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3130032/)

**STPS40L15C** 

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

## Low drop OR-ing power Schottky diode 

## **Features** 

- Very low forward voltage drop for less power dissipation and reduced heatsink size 

- Reverse voltage suited to OR-ing of 3 V, 5 V and 12 V rails 

- Avalanche capability specified 

## **Description** 

Dual center tap schottky rectifier packaged in TO-220AB and TO-247, this device is especially intended for use as OR-ing diode in fault tolerant power supply equipments. 

**==> picture [179 x 158] intentionally omitted <==**

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A1<br>K<br>A2<br>K<br>A2 A2<br>A1 [K] K<br>A1<br>TO-220AB  TO-247<br>STPS40L15CT STPS40L15CW<br>**----- End of picture text -----**<br>


**Table 1.** 

## **Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|2x20 A|
|VRRM|15 V|
|Tj (max)|125 °C|
|VF (max)|0.33 V|



1/8 

July 2011 

Doc ID 4926 Rev 6 

_www.st.com_ 

**Characteristics** 

**STPS40L15C** 

## **1 Characteristics** 

## **Table 2. Absolute ratings (limiting values, per diode)** 

|**Symbol**|**Parameter**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage|||15|V|
|IF(RMS)|Forward current rms|||30|A|
|IF(AV)|Average forward current|Tcase= 140 °C<br>δ= 1|Total|40|A|
||||Per diode|20||
|IFSM|Surge non repetitive forward<br>current|tp= 10 m, Sinusoidal||310|A|
|IRRM|Peak repetitive reverse current|tp= 2 µs, F= 1 kHz||2|A|
|IRSM|Non repetitive peak reverse current|tp= 100 µs||3|A|
|PARM|Repetitive peak avalanche power|tp= 1µs, Tj= 25 °C||13140|W|
|Tstg|Storage temperature range|||-65 to + 150|°C|
|Tj|Maximum operating junction temperature(1)|||125|°C|
|dV/dt|Critical rate of rise of reverse voltage|||10000|V/µs|



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

## **Table 3. Thermal resistances** 

|**Table 3.**|**Thermal resistances**||||
|---|---|---|---|---|
|**Symbol**|**Parameter**||**Value**|**Unit**|
|Rth(j-c)|Junction to case|Per diode|1.6|°C/W|
|||Total|0.85||
|Rth (c)|Coupling||0.1|°C/W|



## **Table 4. Static electrical characteristics (Per diode)** 

|**Symbol**|**Parameter**|**Tests conditions**|**Tests conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR<br>(1)|Reverse leakage<br>current|Tj= 25 °C|VR= VRRM|||6|mA|
|||Tj= 100 °C|||200|500||
|VF<br>(1)|Forward voltage drop|Tj= 25 °C|IF= 19 A|||0.41|V|
|||Tj= 25 °C|IF= 40 A|||0.52||
|||Tj= 125 °C|IF= 19 A||0.28|0.33||
|||Tj= 125 °C|IF= 40 A||0.42|0.50||



1. Pulse test : tp = 380 µs, δ < 2% 

To evaluate the conduction losses use the following equation : P = 0.18 x IF(AV) + 0.008 IF2(RMS) 

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Doc ID 4926 Rev 6 

**STPS40L15C** 

**Characteristics** 

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**----- Start of picture text -----**<br>
Figure 1. Average forward power dissipation  Figure 2. Average forward current versus<br>versus average forward current  ambient temperature<br>(per diode) ( δ = 1, per diode)<br>PF(av)(W) IF(av)(A)<br>8 22<br>7 δ = 0.1 δ = 0.5 20 Rth(j-a)=Rth(j-c)<br>δ = 0.05 δ = 0.2 18<br>6 δ = 1<br>16<br>5 14<br>12 Rth(j-a)=15°C/W<br>4<br>10<br>3 8<br>T<br>2 T 6<br>4<br>1<br>IF(av) (A) δ [=tp/T] tp 2 δ [=tp/T] tp Tamb(°C)<br>0 0<br>0 2 4 6 8 10 12 14 16 18 20 22 0 25 50 75 100 125 150<br>Figure 3. Normalized avalanche power  Figure 4. Normalized avalanche power<br>derating versus pulse duration derating versus junction<br>temperature<br>PARM(tp) PARM(T )j<br>PARM(1µs) 1.2 PARM(25 °C)<br>1<br>1<br>0.1 0.8<br>0.6<br>0.01 0.4<br>0.2<br>0.001 tp(µs) 0 Tj(°C)<br>0.01 0.1 1 10 100 1000 25 50 75 100 125 150<br>Figure 5. Non repetitive surge peak forward  Figure 6. Relative variation of thermal<br>current versus overload duration  impedance junction to case versus<br>(maximum values per diode) pulse duration (per diode)<br>IM(A) Zth(j-c)/Rth(j-c)<br>250 1.0<br>200 0.8<br>150 0.6 δ = 0.5<br>Tc=50°C<br>100 Tc=75°C 0.4 δ = 0.2 T<br>IM<br>50 t Tc=110°C 0.2 δ = 0.1<br>δ=0.5 t(s) Single pulse tp (s) δ [=tp/T] tp<br>0 0.0<br>1E-3 1E-2 1E-1 1E+0 1.0E-4 1.0E-3 1.0E-2 1.0E-1 1.0E+0<br>**----- End of picture text -----**<br>


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Doc ID 4926 Rev 6 

**Characteristics** 

**STPS40L15C** 

**Figure 7. Reverse leakage current versus reverse voltage applied (typical values per diode)** 

**Figure 8. Junction capacitance versus reverse voltage applied (typical values per diode)** 

**==> picture [462 x 341] intentionally omitted <==**

**----- Start of picture text -----**<br>
IR(mA) C(nF)<br>5E+2<br>5.0<br>F=1MHz<br>Tj=100°C<br>1E+2 Tj=25°C<br>1E+1 1.0<br>1E+0 Tj=25°C<br>VR(V)<br>VR(V)<br>1E-1 0.1<br>0 2 4 6 8 10 12 14 16 1 2 5 10 20<br>Figure 9. Forward voltage drop versus  Figure 10. Forward voltage drop versus<br>forward current (typical values per  forward current (typical maximum<br>diode) per diode)<br>IFM(A) IFM(A)<br>200.0 200<br>Tj=100°C<br>100.0 100<br>Tj=150°C<br>10.0 Tj=25°C<br>Tj=125°C<br>10<br>Tj=75°C<br>1.0<br>VFM(V) VFM(V)<br>0.1 1<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8<br>**----- End of picture text -----**<br>


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Doc ID 4926 Rev 6 

**STPS40L15C** 

**Package information** 

## **2 Package information** 

- Epoxy meets UL94,V0 

- Cooling method: by conduction (C) 

- Recommended torque values for: TO-220AB 0.4 to 0.6 N·m 

- Recommended torque values for: TO-247 0.9 to 1.2 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. 

**==> picture [405 x 382] intentionally omitted <==**

**----- Start of picture text -----**<br>
Table 5. TO-220AB dimensions<br>Dimensions<br>Ref.  Millimeters  Inches<br>Min.  Max.  Min.  Max.<br>A  4.40  4.60  0.173  0.181<br>C  1.23 1.32 0.048  0.106<br>D 2.40 2.72  0.094  0.009<br>H2 A<br>Dia C E  0.49 0.70 0.019  0.037<br>L5 F  0.61 0.88 0.024  0.067<br>L7<br>F1  1.14  1.70 0.044  0.024<br>L6<br>F2  1.14  1.70  0.044  0.054<br>L2<br>F2 G 4.95  5.15  0.194  0.368<br>F1 L9 D G1 2.40  2.70  0.094  0.409<br>L4 H2  10  10.40  0.393 0.208<br>F<br>L2  16.4 typ 0.645 typ<br>M<br>G1 E L4  13 14 0.511  0.055<br>G<br>L5  2.65 2.95  0.104  0.069<br>L6 15.25 15.75  0.600  0.126<br>L7 6.20 6.60 0.244<br>L9 3.50 3.93 0.137<br>M 2.6 typ.  0.102 typ.<br>Diam.  3.75  3.85  0.147  0.151<br>**----- End of picture text -----**<br>


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Doc ID 4926 Rev 6 

**STPS40L15C** 

**Package information** 

**Table 6. TO-247 dimensions** 

|L||||||E<br>A|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||**Millimeters**|||**Inches**|||
|||||||||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
||||||||A|4.85||5.15|0.191||0.203|
||||||||D|2.20||2.60|0.086||0.031|
|||H<br>V<br>V|Dia.||||E|0.40||0.80|0.015|0.009||
|||||||||||||||
|||||||||||||||
||||||||F|1.00||1.40|0.039||0.055|
|||||||||||||||
|||||||||||||||
||||||||F1||3.00|||0.118||
|||||||||||||||
||||||||F2||2.00|||0.078||
||||||||F3|2.00||2.40|0.078||0.094|
||||||||F4|3.00||3.40|0.118||0.133|
||L5||F2<br>L4<br>L2<br>L1<br>L3<br>F3<br>F4<br><br>=|||||||||||
||||||||G||10.90|||0.429||
|||||||||||||||
||||||||H|15.45||15.75|0.608||0.620|
||||||||L|19.85||20.15|0.781||0.793|
|||F1<br>V2<br>G<br>=<br>F(x3)|||||L1|3.70||4.30|0.145||0.169|
||||||||L2<br>||18.50|||0.728||
||||||||L3|14.20||14.80|0.559||0.582|
||||||||L4||34.60|||1.362||
||||||||L5||5.50|||0.216||
||||||||M|2.00||3.00|0.078||0.118|
||||||||V||5°|||5°||
||||||||V2||60°|||60°||
||||||||Dia|3.55||3.65|0.139||0.143|



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**STPS40L15C** 

**Ordering information** 

## **3 Ordering information** 

## **Table 7. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|STPS40L15CW|STPS40L15CW|TO-247|4.4 g|30|Tube|
|STPS40L15CT|STPS40L15CT|TO-220AB|2.2 g|50|Tube|



## **4 Revision history** 

## **Table 8. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|July-2003|5A|Previous edition.|
|18-Jul-2011|6|Added cathode indicator K to illustration for TO-220AB.|



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**STPS40L15C** 

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Doc ID 4926 Rev 6 



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