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STPS20SM100ST
Small Signal Schottky Diode, Single, 100 V, 20 A, 900 mV, 350 A, 150 °C
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- Manufacturer: STMICROELECTRONICS
- Product type:
- Diode Configuration:Single; Repetitive Reverse Voltage Vrrm Max:100V; Forward Current If(AV):20A; Forward Voltage VF Max:900mV; Forward Surge Current Ifsm Max:350A; Operating Tempera
- SVHC: No SVHC (25-Jun-2025)
- No. of Pins: 3Pins
- Product Range: STPS2
- Qualification: -
- Diode Mounting: Through Hole
- Diode Case Style: TO-220AB
- Diode Configuration: Single
- Forward Voltage Max: 900mV
- Forward Surge Current: 350A
- Reverse Recovery Time: -
- Average Forward Current: 20A
- Operating Temperature Max: 150°C
- Repetitive Peak Reverse Voltage: 100V
| Delivery and price | |
|---|---|
| Units per pack | 5000 |
| Price | 0.708 € |
| Current stock | 50+ |
| Lead time | 30 days |
Datasheet
**STPS20SM100S** Datasheet 100 V power Schottky rectifier ## **Features** **==> picture [121 x 95] intentionally omitted <==** **----- Start of picture text -----**<br> A(1)<br>K(2)<br>A(3) He<br>K K<br>A<br>A<br>A K a A K<br>TO-220AB I²PAK<br>**----- End of picture text -----**<br> - High current capability - Avalanche rated - Low forward voltage drop - High frequency operation - ECOPACK[®] 2 compliant ## **Applications** - Switching diode - SMPS - DC/DC converter - LED lighting - Desktop power supply ## **Description** This single Schottky rectifier is suited for high frequency switch mode power supply. Packaged in TO-220AB and I²PAK, the STPS20SM100S is intended to be used in notebook, game station and desktop adaptors, providing in these applications a good efficiency at both low and high load. ## **Product status link** ~~Ds~~ **Product status link** STPS20SM100S |**Product summary**<br>~~Ds~~|**Product summary**<br>~~Ds~~| |---|---| |**IF(AV)**|20 A| |**VRRM**|100 V| |**Tj (max.)**|150 °C| |**VF (typ.)**|0.63 V| **DS6172** - **Rev 4** - **October 2018** For further information contact your local STMicroelectronics sales office. www.st.com **STPS20SM100S Characteristics** **1** ## **Characteristics** **Table 1. Absolute ratings (limiting values, with terminals 1 and 3 short circuited, at 25 °C, unless otherwise specified)** |**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**| |---|---|---|---|---| |VRRM|Repetitive peak reverse voltage||100|V| |IF(RMS)|Forward rms current||30|A| |IF(AV)|Average forward current δ = 0.5, square wave|TC= 125 °C|20|A| |IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal|350|A| |PARM|Repetitive peak avalanche power|tp= 10 µs, Tj= 125 °C|1080|W| |Tstg|Storage temperature range||-65 to +150|°C| |Tj|Maximum operating junction temperature(1)||150|°C| _1. (dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink._ **Table 2. Thermal resistance parameter** |**Symbol**|**Parameter**|**Max. value**|**Unit**| |---|---|---|---| |Rth(j-c)|Junction to case|1.3|°C/W| For more information, please refer to the following application note: - AN5088: Rectifiers thermal management, handling and mounting recommendations **Table 3. Static electrical characteristics (with terminals 1 and 3 short circuited)** |**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**| |---|---|---|---|---|---|---|---| |IR (1)|Reverse leakage current|Tj= 25 °C|VR= VRRM|-|10|30|µA| |||Tj= 125 °C||-|10|30|mA| |||Tj= 25 °C|VR= 70 V|-|5||µA| |||Tj= 125 °C||-|5||mA| |VF (2)|Forward voltage drop|Tj= 25 °C|IF= 5 A|-|565||mV| |||Tj= 125 °C||-|480||| |||Tj= 25 °C|IF= 10 A|-|685||| |||Tj= 125 °C||-|560|620|| |||Tj= 25 °C|IF= 20 A|-|800|900|| |||Tj= 125 °C||-|630|700|| _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 = 0.6 x IF(AV) + 0.005 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 **DS6172** - **Rev 4** **page 2/10** **STPS20SM100S Characteristics (curves)** - AN4021: Calculation of reverse losses on a power diode ## **1.1 Characteristics (curves)** **Figure 1. Average forward power dissipation versus average forward current (terminals 1 and 3 short circuited)** **Figure 2. Average forward current versus ambient temperature (δ = 0.5, terminals 1 and 3 short circuited)** **==> picture [480 x 153] intentionally omitted <==** **----- Start of picture text -----**<br> IF(AV)(A)<br>22 PF(AV)(W) 2220 Rth(j-a)= R th(j-c)<br>20 δ = 1<br>FEEEEEEEEEEEEEEEEEEEE 18 e e e<br>18 ERR EE δ = 0.5 —— —— ———<br>a a 16 P t TE<br>16 eee p.maa aaCCa OC GG OW<br>14 aee 14 a a CCCW \ |<br>a a δ = 0.2 CO4ATA 12 Aag A OOCC |<br>12 a LAL Eee er a asCW<br>10 EERECTE δ = 0.05 δ = 0.1 HoreZ| 4 | EEE 108 oS ™ Rth(j-a)= 15°C/W<br>8 aa a AVAwaya arsea4s 6 aa A T OOOsa OOaOOO HWCC OWOW<br>6 CEPTCL TAAeAAe T 4 aa OOCW<br>4 a a pS<br>2 δ [=tp/T] tp Tamb(°C)<br>2 LS = |<br>IF(AV)(A) δ [= tp/T] tp 0<br>0 CARa a a -_- 0 a 2 5 5 0 7 5 re 100 125 150<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28<br>**----- End of picture text -----**<br> **Figure 3. Normalized avalanche power derating versus pulse duration (Tj = 125 °C)** **Figure 4. Relative variation of thermal impedance junction to case versus pulse duration** **==> picture [472 x 146] intentionally omitted <==** **----- Start of picture text -----**<br> PARM(tp) 1.0 Zth(j-c) /Rth(j-c)<br>1 PARM(10 µs) —-—----- —------ 0.9 PT TO-220AB/I²PAK AA eo<br>a OOOe<br>0.8 P a<br>a<br>0.7 072<br>a OO OO<br>0.1 mBEail 0.6 aa OO OO<br>0.5 asOa OO<br>0.4 aOOa OOOe<br>0.01 0.3 Po Single pulse aCert<br>0.2 a es<br>ee ee<br>t p(µs) 0.10.0 area tp(s) 0aa<br>0.001<br>1 10 100 1000 1.E-03 1.E-02 1.E-01 1.E+00<br>**----- End of picture text -----**<br> **DS6172** - **Rev 4** **page 3/10** **STPS20SM100S Characteristics (curves)** **==> picture [513 x 209] 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 10000<br>F = 1 MHz<br>Tj = 150 °C VOSC=30mVRMS<br>Tj= 25 °C<br>1.E+01<br>Tj = 125 °C<br>1.E+00 Tj = 100 °C<br>1000<br>Tj = 75 °C<br>1.E-01<br>Tj = 50 °C<br>1.E-02<br>Tj = 25 °C<br>VR(V)<br>VR(V)<br>1.E-03 100<br>0 10 20 30 40 50 60 70 80 90 100 1 10 100<br>**----- End of picture text -----**<br> **Figure 7. Forward voltage drop versus forward current (terminals 1 and 3 short circuited)** **==> picture [221 x 142] intentionally omitted <==** **----- Start of picture text -----**<br> IF(A)<br>40<br>Tj= 125°C 125 °C<br>30 (Maximum values)<br>20 (TypicalTj =125°C= 125 °C values) Tj = 25 °C<br>(Maximum values)<br>10<br>VF (V)<br>0<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2<br>**----- End of picture text -----**<br> **DS6172** - **Rev 4** **page 4/10** **STPS20SM100S 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-220AB 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-220AB package outline** **==> picture [309 x 368] intentionally omitted <==** **DS6172** - **Rev 4** **page 5/10** **STPS20SM100S TO-220AB package information** ## **Table 4. TO-220AB 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| |b|0.61|0.88|0.240|0.035| |b1|1.14|1.55|0.045|0.061| |c|0.48|0.70|0.019|0.028| |D|15.25|15.75|0.600|0.620| |D1|1.27 typ.||0.050 typ.|| |E|10.00|10.40|0.394|0.409| |e|2.40|2.70|0.094|0.106| |e1|4.95|5.15|0.195|0.203| |F|1.23|1.32|0.048|0.052| |H1|6.20|6.60|0.244|0.260| |J1|2.40|2.72|0.094|0.107| |L|13.00|14.00|0.512|0.551| |L1|3.50|3.93|0.138|0.155| |L20|16.40 typ.||0.646 typ.|| |L30|28.90 typ.||1.138 typ.|| |θP|3.75|3.85|0.148|0.152| |Q|2.65|2.95|0.104|0.116| **DS6172** - **Rev 4** **page 6/10** **STPS20SM100S I²PAK package information** ## **2.2 I²PAK package information** - Cooling method: by conduction (C) - Epoxy meets UL 94,V0 **Figure 9. I²PAK package outline** **Table 5. I²PAK 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| |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| |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|10.00|10.40|0.394|0.409| |L|13.00|14.00|0.512|0.551| |L1|3.50|3.93|0.138|0.155| |L2|1.27|1.40|0.050|0.055| **DS6172** - **Rev 4** **page 7/10** **STPS20SM100S Ordering information** ## **3 Ordering information** **Table 6. Ordering information** |**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**| |---|---|---|---|---|---| |STPS20SM100ST|PS20SM100ST|TO-220AB|1.95 g|50|Tube| |STPS20SM100SR|PS20SM100SR|I²PAK|1.50 g|50|Tube| **DS6172** - **Rev 4** **page 8/10** **STPS20SM100S** ## **Revision history** **Table 7. Document revision history** |**Date**|**Revision**|**Changes**| |---|---|---| |25-Mar-2009|1|First issue.| |16-Apr-2010|2|Updated package graphic for TO-220AB on front page and in_Table 5_.| |11-May-2017|3|Removed TO-220FPAB and D²PAK packages.| |17-Oct-2018|4|Updated cover page andTable 1. Absolute ratings (limiting values, with<br>terminals 1 and 3 short circuited, at 25 °C, unless otherwise specified).<br>Removed figure 1 and figure 9.<br>Minor text changes to improve readability.| **DS6172** - **Rev 4** **page 9/10** **STPS20SM100S** ## **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 **DS6172** - **Rev 4** **page 10/10**
Updated at April 29, 2026
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