# Schottky Rectifier, 120 V, 20 A, Single, TO-220AC, 2 Pins, 930 mV

![Product image](https://novapart.co/image/farnell:2353677/)

**URL**: https://novapart.co/products/STPS20120D/schottky-rectifier-120-v-20-a-single-to-220ac-2
**SKU**: STPS20120D
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.3980
**Stock**: 500+
**Lead Time**: 120 days (indicative)

## Description

Repetitive Reverse Voltage Vrrm Max:120V; Forward Current If(AV):20A; Diode Configuration:Single; Diode Case Style:TO-220AC; No. of Pins:2Pins; Forward Voltage VF Max:930mV; Forwa

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 2Pins |
| Product Range | STPS2 |
| Qualification | - |
| Diode Mounting | Through Hole |
| Diode Case Style | TO-220AC |
| Diode Configuration | Single |
| Forward Voltage Max | 930mV |
| Forward Surge Current | 200A |
| Average Forward Current | 20A |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 120V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2353677/)

**STPS20120D** 

Datasheet 

## 120 V power Schottky rectifier 

## **Features** 

**==> picture [59 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
A K<br>**----- End of picture text -----**<br>


- High junction temperature capability 

**==> picture [88 x 92] intentionally omitted <==**

**----- Start of picture text -----**<br>
K<br>A<br>RA<br>K<br>TO-220AC<br>**----- End of picture text -----**<br>


- Avalanche rated 

- Low leakage current 

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

- ECOPACK[®] 2 compliant 

## **Applications** 

- Switching diode 

- SMPS 

- DC/DC converter 

- LED lighting 

- Notebook adapter 

## **Description** 

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

Packaged in TO-220AC, the STPS20120D is optimized for use in notebook & LCD adaptors, desktop SMPS, providing in these applications a margin between the remaining voltages applied on the diode and the voltage capability of the diode. 

## **Product status link** ~~[ld~~ 

|**Product status link**<br>~~[ld~~|**Product status link**<br>~~[ld~~|
|---|---|
|STPS20120D||
|**Product summary**<br>~~[ld~~||
|**Symbol**|**Value**|
|**IF(AV)**|20 A|
|**VRRM**|120 V|
|**Tj (max.)**|175 °C|
|**VF (typ.)**|0.72 V|



**DS4232** - **Rev 2** - **July 2018** For further information contact your local STMicroelectronics sales office. 

www.st.com 

**STPS20120D Characteristics** 

**1** 

## **Characteristics** 

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

|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage||120|V|
|IF(RMS)|Forward rms current||30|A|
|IF(AV)|Average forward current , δ = 0.5 square wave|Tc= 130 °C|20|A|
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal|200|A|
|PARM|Repetitive peak avalanche power|tp= 10 µs, Tj= 125 °C|619|W|
|Tstg|Storage temperature range||-65 to +175|°C|
|Tj|Maximum operating junction temperature(1)||175|°C|



_1. (dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink._ 

**Table 2. Thermal resistance parameters** 

|**Symbol**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|
|Rth(j-c)|Junction to case|2.2|°C/W|



**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|-||20|µA|
|||Tj= 125 °C||-|3|10|mA|
|VF(2)|Forward voltage drop|Tj= 25 °C|IF= 5 A|-||0.70|V|
|||Tj= 125 °C||-|0.54|0.58||
|||Tj= 25 °C|IF= 10 A|-||0.80||
|||Tj= 125 °C||-|0.62|0.66||
|||Tj= 25 °C|IF= 20 A|-||0.93||
|||Tj= 125 °C||-|0.72|0.76||



_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 = 0.56 x IF(AV) + 0.010 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 

**DS4232** - **Rev 2** 

**page 2/9** 

**STPS20120D Characteristics (curves)** 

## **1.1 Characteristics (curves)** 

**Figure 1. Average forward power dissipation versus average forward current** 

**==> picture [222 x 144] intentionally omitted <==**

**----- Start of picture text -----**<br>
PF(AV)(W)<br>28<br>26 δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5<br>24<br>22 δ = 1<br>20<br>18<br>16<br>14<br>12<br>10<br>8<br>6 T<br>4<br>20 IF(AV)(A) δ [=t][p][/T] tp<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26<br>**----- End of picture text -----**<br>


**Figure 3. Normalized avalanche power derating versus pulse duration (Tj = 125 °C)** 

**==> picture [200 x 143] intentionally omitted <==**

**----- Start of picture text -----**<br>
PARM(tp)<br>1 PARM(10 µs)<br>0.1<br>0.01<br>t p(µs)<br>0.001<br>1 10 100 1000<br>**----- End of picture text -----**<br>


**Figure 2. Average forward current versus ambient temperature (δ = 0.5)** 

**==> picture [217 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
IF(AV)(A)<br>22<br>20 R th(j-a)  = R th(j-c)<br>18<br>16<br>14<br>12 R th(j-a) = 15°C/W<br>10<br>8<br>6<br>T<br>4<br>2 T amb (°C)<br>δ [=tp/T] tp<br>0<br>0 25 50 75 100 125 150 175<br>**----- End of picture text -----**<br>


**Figure 4. Relative variation of thermal impedance junction to case versus pulse duration** 

**==> picture [218 x 140] intentionally omitted <==**

**----- Start of picture text -----**<br>
Zth(j-c) /Rth(j-c)<br>1.0<br>0.9<br>0.8<br>0.7<br>0.6<br>0.5<br>0.4<br>0.3<br>0.2<br>0.1 Single pulse<br>t P (s)<br>0.0<br>1.E-03 1.E-02 1.E-01 1.E+00<br>**----- End of picture text -----**<br>


**DS4232** - **Rev 2** 

**page 3/9** 

**STPS20120D Characteristics (curves)** 

**==> picture [513 x 206] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 5. Reverse leakage current versus reverse voltage Figure 6. Junction capacitance versus reverse voltage<br>applied (typical values) applied (typical values)<br>IR(mA) C(pF)<br>1.E+02 1000<br>F = 1 MHz<br>1.E+01 Tj = 150 °C V OSC  T j = 30 mV= 25 °C RMS<br>1.E+00 Tj = 125 °C<br>1.E-01 T j = 100 °C<br>T j = 75 °C 100<br>1.E-02<br>Tj = 50 °C<br>1.E-03<br>Tj = 25 °C<br>1.E-04<br>VR(V) VR(V)<br>1.E-05 10<br>0 10 20 30 40 50 60 70 80 90 100 110 120 1 10 100<br>**----- End of picture text -----**<br>


**Figure 7. Forward voltage drop versus forward current** 

**==> picture [224 x 144] intentionally omitted <==**

**----- Start of picture text -----**<br>
IF (A)<br>100<br>(Maximum values T j  = 125 °C )<br>(Typical values) T j  = 125 °C<br>(Maximum values)Tj = 25 °C<br>10<br>VF (V)<br>1<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6<br>**----- End of picture text -----**<br>


**DS4232** - **Rev 2** 

**page 4/9** 

**STPS20120D 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 TO-220AC package information** 

- Epoxy meets UL 94,V0 

- Cooling method: by conduction (C) 

- Recommended torque value: 0.55 N·m 

- Maximum torque value: 0.70 N·m 

**Figure 8. TO-220AC package outline** 

**==> picture [425 x 402] intentionally omitted <==**

**----- Start of picture text -----**<br>
H2 A<br>C<br>Ø I<br>Gate note (1)(2)<br>L5<br>L7<br>L6<br>L2<br>D<br>F1 L9<br>Gate note (1)(2)  L4<br>F<br>M<br>E<br>G<br>**----- End of picture text -----**<br>


- (1) : Max resin gate protusion 0.5 mm 

- (2) : Resin gate position is accepted in each of the two positions shown on the drawings or their symmetrical 

**DS4232** - **Rev 2** 

**page 5/9** 

**STPS20120D TO-220AC package information** 

## **Table 4. TO-220AC package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.173|0.181|
|C|1.23|1.32|0.048|0.051|
|D|2.40|2.72|0.094|0.107|
|E|0.49|0.70|0.019|0.027|
|F|0.61|0.88|0.024|0.034|
|F1|1.14|1.70|0.044|0.066|
|G|4.95|5.15|0.194|0.202|
|H2|10.00|10.40|0.393|0.409|
|L2|16.40 typ.||0.645 typ.||
|L4|13.00|14.00|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|2.60 typ.||0.102 typ.||
|Diam|3.75|3.85|0.147|0.151|



**DS4232** - **Rev 2** 

**page 6/9** 

**STPS20120D Ordering information** 

**3 Ordering information** 

## **Table 5. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|STPS20120D|STPS20120D|TO-220AC|1.86 g|50|Tube|



**DS4232** - **Rev 2** 

**page 7/9** 

**STPS20120D** 

## **Revision history** 

**Table 6. Document revision history** 

|**Date**|**Version**|**Changes**|
|---|---|---|
|18-Feb-2005|1|First issue.|
|02-Jul-2018|2|Removed figure 4 and figure 5.<br>UpdatedFigure 3. Normalized avalanche power derating versus pulse<br>duration (Tj= 125 °C)andTable 1. Absolute ratings (limiting values at 25 °C<br>unless otherwise specified).<br>Minor text changes to improve readability.|



**DS4232** - **Rev 2** 

**page 8/9** 

**STPS20120D** 

## **IMPORTANT NOTICE – PLEASE READ CAREFULLY** 

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. 

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. 

No license, express or implied, to any intellectual property right is granted by ST herein. 

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. 

ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. 

Information in this document supersedes and replaces information previously supplied in any prior versions of this document. 

© 2018 STMicroelectronics – All rights reserved 

**DS4232** - **Rev 2** 

**page 9/9** 



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