# Schottky Rectifier, 45 V, 40 A, Dual Common Cathode, TO-263 (D2PAK), 3 Pins, 700 mV

![Product image](https://novapart.co/image/farnell:4860890RL/)

**URL**: https://novapart.co/products/STPS40L45CGY-TR/schottky-rectifier-45-v-40-a-dual-common-cathode
**SKU**: STPS40L45CGY-TR
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.7520
**Stock**: 200+
**Lead Time**: 319 days (indicative)

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4860890RL/)

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## **STPS40L45C-Y** 

## Automotive power Schottky rectifier 

**Datasheet** − **production data** 

## **Features** 

- Low forward voltage drop meaning very small conduction losses 

- Low switching losses allowing high frequency operation 

- Avalanche capability specified 

- AEC-Q101 qualified 

## **Description** 

Dual center tap Schottky barrier rectifier designed for high frequency switched mode power supplies and DC to DC converters. 

Packaged in D²PAK, this device is intended for use in low voltage, high frequency inverters, freewheeling and polarity protection for automotive applications. 

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A1<br>K<br>A2<br>K<br>A2<br>A1<br>**----- End of picture text -----**<br>


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D²PAK<br>STPS40L45CGY<br>**----- End of picture text -----**<br>


## **Table 1.** ’ 

## **Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|2 x 20 A|
|VRRM|45 V|
|Tj(max)|150 °C|
|VF(max)|0.49 V|



1/7 

June 2012 

Doc ID 023224 Rev 1 

This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**STPS40L45C-Y** 

## **1 Characteristics** 

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

|**Table 2.**|**Absolute ratings (limiting values,per diode)**|**Absolute ratings (limiting values,per diode)**|**Absolute ratings (limiting values,per diode)**|||
|---|---|---|---|---|---|
|**Symbol**|**Parameter**|||**Value**|**Unit**|
|VRRM|Repetitive peak reverse voltage|||45|V|
|IF(RMS)|Forward rms current|||30|A|
|IF(AV)|Average forward current|Tc=130 °C<br>δ= 0.5|per diode<br>per device|20<br>40|A|
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal||230|A|
|IRRM|Repetitive peak reverse current|tp= 2 µs square F = 1 kHz||2|A|
|IRSM|Non repetitive peak reverse current|tp= 100 µs square||3|A|
|PARM|Repetitive peak avalanche power|tp= 1 µs Tj= 25 °C||8100|W|
|Tstg|Storage temperature range|||-65 to + 150|°C|
|Tj|Operating junction temperature(1)|||-40 to + 150|°C|
|dV/dt|Critical rate of rise of reverse voltage|||10000|V/µs|
|1.<br>condition to avoid thermal runaway for a diode on its own heatsink<br>**Table 3.**<br>**Thermal resistances**<br>dPtot<br>dTj<br><<br>1<br>Rth(j-a)||||||
|**Symbol**|**Parameter**|||**Value**|**Unit**|
|Rth (j-c)|Junction to case||Per diode<br>Total|1.5<br>0.8|°C/W|
|Rth(c)|Coupling|||0.1|°C/W|



When the diodes 1 and 2 are used simultaneously : 

ΔTj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c). 

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

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR<br>(1)|Reverse leakage<br>current|Tj= 25 °C|VR= VRRM|||0.6|mA|
|||Tj= 125 °C|||140|280|mA|
|VF<br>(1)|Forward voltage drop|Tj= 25 °C|IF= 20 A|||0.53|V|
|||Tj= 125 °C|IF= 20 A||0.42|0.49||
|||Tj= 25 °C|IF= 40 A|||0.69||
|||Tj= 125 °C|IF= 40 A||0.6|0.7||



1. Pulse test: tp = 380 µs, δ < 2% 

To evaluate the conduction losses use the following equation: P = 0.28 x IF(AV) + 0.0105 IF2(RMS) 

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Doc ID 023224 Rev 1 

**STPS40L45C-Y** 

**Characteristics** 

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Figure 1. Average forward power dissipation  Figure 2. Average forward current versus<br>versus average forward current  ambient temperature<br>(per diode) ( δ  = 0.5, per diode)<br>PF(AV)(W) IF(AV)(A)(AV)(A)AV)(A))(A)(A)<br>16 22<br>14 δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 2018 Rth(j-a) = Rth(j-c)<br>12 16<br>10 14<br>δ = 1<br>12<br>8<br>10 Rth(j-a) = 15 °C/W<br>6 8<br>4 T 6 T<br>4<br>2<br>IF(AV)(A) δ = tp /  T tp 2 δ = tp /  = tp /  T tp Tamb(°C)<br>0 0<br>0 2 4 6 8 10 12 14 16 18 20 22 24 0 25 50 75 100 125<br>WZA<br>**----- End of picture text -----**<br>


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IF(AV)(A)(AV)(A)AV)(A))(A)(A)<br>22<br>182018 Rth(j-a) = Rth(j-c)<br>16<br>14<br>12<br>10 Rth(j-a) = 15 °C/W<br>8<br>6<br>T<br>4<br>2 δ = tp /  = tp /  T tp Tamb(°C)<br>0<br>0 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


## **Figure 3. Normalized avalanche power derating versus pulse duration** 

**Figure 4. Normalized avalanche power derating versus junction temperature** 

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PARM(tp) PARM(T )j<br>1 PARM(1 µs) 1.2 PARM(25 °C)<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>**----- End of picture text -----**<br>


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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 durationulse duration<br>IM(A) Zth(j-c)/Rth(j-c)<br>250 1.0<br>225<br>200 0.8<br>175<br>δ = 0.5<br>150 0.6<br>Tc = 25 °C<br>125<br>100 0.4 δ = 0.2<br>75 Tc = 75 °C δ = 0.1 T<br>50 0.2<br>25 t(s) Tc = 125 °C 0.0 Single pulse tp(s) δ = tp /  T tp<br>0<br>1E-3 1E-2 1E-1 1E+0 1E-4 1E-3 1E-2 1E-1 1E+0<br>fa<br>**----- End of picture text -----**<br>


**Figure 6. Relative variation of thermal impedance junction to case versus pulse durationulse duration** 

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Doc ID 023224 Rev 1 

**Characteristics** 

**STPS40L45C-Y** 

**Figure 7. Reverse leakage current versus Figure 8. Junction capacitance versus reverse voltage applied reverse voltage applied (typical values, per diode) (typical values, per diode)** 

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IR(mA)<br>1E+3 C(nF)<br>10.0<br>1E+2 Tj = 150 °C F=1MHzTj=25°C<br>Tj = 125 °C<br>1E+1<br>1.0<br>1E+0 Tj = 75 °C<br>1E-1 Tj = 25 °C<br>VR(V)<br>VR(V) 0.1<br>1E-2 1 10 100<br>0 5 10 15 20 25 30 35 40 45<br>Figure 9. Forward voltage drop versus  Figure 10. Thermal resistance junction to<br>forward current (maximum values,  ambient versus copper surface<br>per diode) under tab.<br>IFM(A) 80 Rth(j-a)(°C/W)<br>epoxy printed board FR4, copper thickness = 35 µm<br>1000 70<br>60<br>100 Typical values 50<br>Tj=150°C<br>40<br>Tj=125°C 30<br>10<br>Tj=75°C 20<br>Tj=25°C<br>VFM(V) 10<br>10.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 S(Cu)(cm²)<br>0 5 10 15 20 25 30 35 40<br>**----- End of picture text -----**<br>


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Doc ID 023224 Rev 1 

**STPS40L45C-Y** 

**Package information** 

## **2 Package information** 

- Epoxy meets UL94, V0 

- Cooling method: by conduction (C) 

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. D[2] PAK dimensions** 

|**L**||||||**N 2mm**<br>**D**<br><br>**2**|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||**Millimeters**||**Inches**||
|||||||||**Min.**|**Max.**|**Min.**|**Max.**|
||**L2**|||**C2**|**A**||A|4.40|4.60|0.173|0.181|
||||||||A1|2.49|2.69|0.098|0.106|
||||**E**|||||||||
||||||||A2|0.03|0.23|0.001|0.009|
|||||||||||||
||**L3**||||||B|0.70|0.93|0.027|0.037|
||||||||B2|1.14|1.70|0.045|0.067|
|||||||||||||
||||||||C|0.45|0.60|0.017|0.024|
||||||**ESS THA**<br>**R**<br>**V**|||||||
|||||**A1**|||C2|1.23|1.36|0.048|0.054|
||||**G**|**B**<br>**B2**<br>*** FLAT ZONE NO L**<br>**A2**<br>**M**<br>**C**<br>*||||||||
|||||||||||||
||||||||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°|



## **Figure 11. Footprint (dimensions in mm)** 

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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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Doc ID 023224 Rev 1 

**Ordering information** 

**STPS40L45C-Y** 

## **3 Ordering information** 

|**Table 6.**<br>**Ordering information**|**Table 6.**<br>**Ordering information**|**Table 6.**<br>**Ordering information**|**Table 6.**<br>**Ordering information**|**Table 6.**<br>**Ordering information**|**Table 6.**<br>**Ordering information**|
|---|---|---|---|---|---|
|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|STPS40L45CGY-TR|STPS40L45CGY|D²PAK|1.8 g|500|Tape and Reel|



## **4 Revision history** 

**Table 7. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|25-Jun-2012|1|First issue.|



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**STPS40L45C-Y** 

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7/7 

Doc ID 023224 Rev 1 



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