# Fast / Ultrafast Diode, 300 V, 20 A, Dual Common Cathode, 1.25 V, 25 ns, 110 A

![Product image](https://novapart.co/image/farnell:4860848/)

**URL**: https://novapart.co/products/STTH2003CR/fast-ultrafast-diode-300-v-20-a-dual-common
**SKU**: STTH2003CR
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Fast & Ultrafast Recovery Rectifier Diodes
**Price**: €0.6980
**Stock**: 200+
**Lead Time**: 319 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3 Pin |
| Product Range | - |
| Qualification | - |
| Diode Case Style | I2-PAK |
| Diode Configuration | Dual Common Cathode |
| Forward Voltage Max | 1.25V |
| Forward Surge Current | 110A |
| Reverse Recovery Time | 25ns |
| Average Forward Current | 20A |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 300V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4860848/)

**STTH2003** 

Datasheet 

## 300 V ultrafast rectifier 

## **Features** 

**==> picture [415 x 115] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1<br>K<br>A2 “an • Combines highest recovery and reverse voltage performance<br>• Ultra-fast, soft and noise-free recovery<br>K • Insulated package: TO-220FPAB<br>– Insulating voltage = 2000 VRMS sine<br>• ECOPACK [®] 2 compliant component for D²PAK on demand<br>A2<br>A2 K<br>A1<br>A1  [K]<br>Applications<br>TO-220AB TO-220FPAB<br>**----- End of picture text -----**<br>


- Combines highest recovery and reverse voltage performance 

- Secondary rectification 

**==> picture [157 x 177] intentionally omitted <==**

**----- Start of picture text -----**<br>
K<br>A2<br>A1 [K]<br>I [2] PAK<br>K K<br>e A1 A2 ¢ A1 A2<br>D [2] PAK<br>Product status<br>ew<br>STTH2003<br>**----- End of picture text -----**<br>


- Switching diode 

- Telecom power supply 

- DC/DC converter 

## **Description** 

The STTH2003 is a dual center tap fast recovery epitaxial diodes suited for switch mode power supply and high frequency DC/DC converters. 

Packaged in TO-220AB, TO-220FPAB, I²PAK or D²PAK, this device is especially intended for secondary rectification. 

|**Product summary**<br>~~ew~~|**Product summary**<br>~~ew~~|
|---|---|
|**IF(AV)**<br>2 x 10 A|2 x 10 A|
|**VRRM**<br>300 V|300 V|
|**Tj (max.)**<br>175 °C|175 °C|
|**VF (typ.)**<br>0.85 V|0.85 V|
|**trr (max.)**<br>25 ns|25 ns|



**DS1213** - **Rev 12** - **August 2018** For further information contact your local STMicroelectronics sales office. 

www.st.com 

**STTH2003 Characteristics** 

**1** 

## **Characteristics** 

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

|**Symbol**|**Parameter**|**Parameter**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage||||300|V|
|IF(RMS)|Forward rms current||||30|A|
|IF(AV)|Average forward current δ = 0.5, square<br>wave|TO-220AB, D²PAK, I²PAK|TC= 140 °C|Per diode|10|A|
|||TO-220FPAB|TC= 115 °C||||
|||All types|Per device||20||
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal|||110|A|
|Tstg|Storage temperature range||||-65 to +175|°C|
|Tj|Maximum operating junction temperature||||175|°C|



**Table 2. Thermal resistance parameters** 

|**Symbol**||**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|---|
|Rth(j-c)|Junction to case|TO-220AB, D²PAK, I²PAK|Per diode|2.5|°C/W|
|||TO-220FPAB||4.6||
|||TO-220AB, D²PAK, I²PAK|Total|1.3||
|||TO-220FPAB||4.0||
|Rth(c)|Coupling|TO-220AB, D²PAK, I²PAK||0.1|°C/W|
|||TO-220FPAB||3.5||



For more information, please refer to the following application note: 

- AN5088: Rectifiers thermal management, handling and mounting recommendations 

When the diodes 1 and 2 are used simultaneously: 

ΔTj (diode1) = P(diode1) x Rth(j-c) (per diode) + P(diode2) x Rth(c) 

**Table 3. Static electrical characteristics (per diode)** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR (1)|Reverse leakage current|Tj= 25 °C|VR= 300 V|-||20|µA|
|||Tj= 125 °C||-|30|300||
|VF (2)|Forward voltage drop|Tj= 25 °C|IF= 10 A|-||1.25|V|
|||Tj= 125 °C||-|0.85|1.0||



_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 = 0.75 x IF(AV) + 0.025 x IF[2] (RMS) 

For more information, please refer to the following application notes related to the power losses: 

**DS1213** - **Rev 12** 

**page 2/16** 

**STTH2003 Characteristics (curves)** 

- AN604: Calculation of conduction losses in a power rectifier 

- AN4021: Calculation of reverse losses in a power diode 

**Table 4. Recovery characteristics (per diode)** 

|**Symbol**|**Parameter**||**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|trr|Reverse recovery time|Tj= 25 °C|IF= 0.5 A, Irr= 0.25 A, IR= 1 A|-||25|ns|
||||IF= 1 A, VR= 30 V,dIF/dt = -50 A/µs|-||35||
|tfr|Forward recovery time|Tj= 25 °C|IF= 10 A, VFR= 1.1 x VFmax, dIF/dt = 100 A/µs|-||230|ns|
|VFP|Peak forward voltage|Tj= 25 °C|IF= 10 A, dIF/dt = 100 A/µs|-||3.5|V|
|IRM|Reverse recovery current|Tj= 125 °C|IF= 10 A, VCC= 200 V, dIF/dt = -200 A/µs|-||8|A|
|S factor|Softness factor|||-|0.3||-|



## **1.1 Characteristics (curves)** 

**==> picture [513 x 410] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 1. Conduction losses versus average forward Figure 2. Forward voltage drop versus forward current<br>current (per diode) (maximum values, per diode)<br>P1(W) IFM(A)<br>14 200<br>δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5<br>12 100 T =125°Cj<br>10<br>δ = 1 T =25°Cj<br>8<br>6 10 T =75°Cj<br>4<br>T<br>2<br>IF(AV)(A) δ [=tp/T] tp VFM(V)<br>0 1<br>0 2 4 6 8 10 12 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00<br>Figure 3. Relative variation of thermal impedance junction Figure 4. Relative variation of thermal impedance junction<br>to case versus pulse duration (TO-220AB, D²PAK, I²PAK) to case versus pulse duration (TO-220FPAB)<br>Z th(j-c)/Rth(j-c) 1.0 Z th(j-c)/Rth(j-c)<br>1.0<br>0.8<br>0.8<br>0.6 0.6<br>0.4 0.4<br>0.2 0.2<br>Single pulse Single pulse<br>tp(s) tp(s)<br>0.0 0.0<br>1E-3 1E-2 1E-1 1E+0 1E-2 1E-1 1E+0 1E+1<br>**----- End of picture text -----**<br>


**DS1213** - **Rev 12** 

**page 3/16** 

**STTH2003 Characteristics (curves)** 

**Figure 5. Peak reverse recovery current versus dIF/dt Figure 6. Reverse recovery time versus dIF/dt (typical (typical values, per diode) values, per diode)** 

**==> picture [482 x 140] intentionally omitted <==**

**----- Start of picture text -----**<br>
IRM(A) trr(ns)<br>16 100<br>14 VT =125°CjR=200V VT =125°CjR=200V<br>IF=2 x IF(AV) 80<br>12 IF=IF(AV)<br>IF=IF(AV)<br>10 IF=0.5 x IF(AV) 60<br>IF=2 x IF(AV)<br>8 IF=0.5 x IF(AV)<br>6 40<br>4<br>20<br>2<br>dIF/dt(A/µs) dIF/dt(A/µs)<br>0 0<br>0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500<br>**----- End of picture text -----**<br>


**==> picture [513 x 197] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 7. Softness factor versus dIF/dt (typical values, per Figure 8. Relative variation of dynamic parameters versus<br>diode) junction temperature (reference: Tj = 125 °C)<br>S factor 2.4<br>0.60 2.2<br>VR=200V 2.0<br>0.50 T =125°Cj 1.8 S factor<br>1.6<br>0.40<br>1.4<br>1.2<br>0.30<br>1.0<br>0.20 0.8 IRM<br>0.6<br>0.10 0.4<br>dIF/dt(A/µs) 0.2 T (°C)j<br>0.00 0.0<br>0 50 100 150 200 250 300 350 400 450 500 25 50 75 100 125<br>**----- End of picture text -----**<br>


**==> picture [513 x 197] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 9. Transient peak forward voltage versus dIF/dt Figure 10. Forward recovery time versus dIF/dt (typical<br>(typical values, per diode) (TO-220AB) values, per diode)<br>VFP(V) tfr(ns)<br>10 500<br>IT =125°CFj=IF(AV) VFR=1.1 x VT =125°CIFj =IF(AV)F max.<br>8 400<br>6 300<br>4 200<br>2 100<br>dIF/dt(A/µs)<br>dIF/dt(A/µs)<br>0 0<br>0 50 100 150 200 250 300 350 400 450 500<br>0 50 100 150 200 250 300 350 400 450 500<br>**----- End of picture text -----**<br>


**DS1213** - **Rev 12** 

**page 4/16** 

**STTH2003 Characteristics (curves)** 

**==> picture [513 x 208] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 11. Thermal resistance, junction to ambient, versus Figure 12. Average forward current versus ambient<br>copper surface under tab (epoxy printed board FR4, eCu = temperature (δ = 0.5, per diode)<br>35µm) (D²PAK)<br>80 12 IF(AV)(A)<br>70 11 Rth(j-a) = Rth(j-c)<br>10<br>60 9<br>8 TO-220AB / I²PAK / D²PAK<br>50<br>7<br>40 6<br>5 TO-220FPAB<br>30<br>4<br>20 3<br>2<br>10 1 Tamb(°C)<br>0 0<br>0 5 10 15 20 25 30 35 40 0 25 50 75 100 125 150 175<br>SCu(cm²)<br>Rth(j-a)(°C/W)<br>**----- End of picture text -----**<br>


**DS1213** - **Rev 12** 

**page 5/16** 

**STTH2003 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 D²PAK package information** 

- Epoxy meets UL94, V0 

- Cooling method: by conduction (C) 

## **Figure 13. D²PAK package outline** 

**==> picture [71 x 85] intentionally omitted <==**

**DS1213** - **Rev 12** 

**page 6/16** 

**STTH2003 D²PAK package information** 

_Note: This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed._ 

**Table 5. D²PAK package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.36|4.60|0.172|0.181|
|A1|0.00|0.25|0.000|0.010|
|b|0.70|0.93|0.028|0.037|
|b2|1.14|1.70|0.045|0.067|
|c|0.38|0.69|0.015|0.027|
|c2|1.19|1.36|0.047|0.053|
|D|8.60|9.35|0.339|0.368|
|D1|6.90|8.00|0.272|0.311|
|D2|1.10|1.50|0.043|0.060|
|E|10.00|10.55|0.394|0.415|
|E1|8.10|8.90|0.319|0.346|
|E2|6.85|7.25|0.266|0.282|
|e|2.54 typ.||0.100||
|e1|4.88|5.28|0.190|0.205|
|H|15.00|15.85|0.591|0.624|
|J1|2.49|2.90|0.097|0.112|
|L|1.90|2.79|0.075|0.110|
|L1|1.27|1.65|0.049|0.065|
|L2|1.30|1.78|0.050|0.070|
|R|0.4 typ.||0.015||
|V2|0°|8°|0°|8°|



**Figure 14. D²PAK recommended footprint (dimensions in mm)** 

**==> picture [260 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
16.90<br>12.20 5.08<br>2.54<br>1.60<br>3.50<br>9.75<br>**----- End of picture text -----**<br>


**DS1213** - **Rev 12** 

**page 7/16** 

**STTH2003 I²PAK package information** 

## **2.2 I²PAK package information** 

- Epoxy meets UL 94,V0 

- Cooling method: by conduction (C) 

**Figure 15. I²PAK package outline** 

**==> picture [53 x 64] intentionally omitted <==**

**DS1213** - **Rev 12** 

**page 8/16** 

**STTH2003 I²PAK package information** 

## **Table 6. 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|



**DS1213** - **Rev 12** 

**page 9/16** 

**STTH2003 TO-220AB package information** 

## **2.3 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 16. TO-220AB package outline** 

**==> picture [309 x 368] intentionally omitted <==**

**Table 7. TO-220AB package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A<br>|4.40|4.60|0.173|0.181|
|b<br>|0.61|0.88|0.240|0.035|
|b1<br>|1.14|1.55|0.045|0.061|



**DS1213** - **Rev 12** 

**page 10/16** 

**STTH2003 TO-220AB package information** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|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|



**DS1213** - **Rev 12** 

**page 11/16** 

**STTH2003** 

**TO-220FPAB package information** 

## **2.4 TO-220FPAB 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 17. TO-220FPAB package outline** 

**DS1213** - **Rev 12** 

**page 12/16** 

**STTH2003 TO-220FPAB package information** 

## **Table 8. TO-220FPAB package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
|**Ref.**|**Millimeters**||**Inches (for reference only)**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.1739|0.1818|
|B|2.50|2.70|0.0988|0.1067|
|D|2.50|2.75|0.0988|0.1087|
|E|0.45|0.70|0.0178|0.0277|
|F|0.75|1.00|0.0296|0.0395|
|F1|1.15|1.70|0.0455|0.0672|
|F2|1.15|1.70|0.0455|0.0672|
|G|4.95|5.20|0.1957|0.2055|
|G1|2.40|2.70|0.0949|0.1067|
|H|10.00|10.40|0.3953|0.4111|
|L2|16.00 typ.||0.6324 typ.||
|L3|28.60|30.60|1.1304|1.2095|
|L4|9.80|10.60|0.3874|0.4190|
|L5|2.90|3.60|0.1146|0.1423|
|L6|15.90|16.40|0.6285|0.6482|
|L7|9.00|9.30|0.3557|0.3676|
|Dia|3.00|3.20|0.1186|0.1265|



**DS1213** - **Rev 12** 

**page 13/16** 

**STTH2003 Ordering information** 

**3 Ordering information** 

**Table 9. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|STTH2003CT|STTH2003CT|TO-220AB|1.95 g|50|Tube|
|STTH2003CG|STTH2003CG|D2PAK|1.38 g|50|Tube|
|STTH2003CG-TR|STTH2003CG|D2PAK|1.38 g|1000|Tape and reel|
|STTH2003CFP|STTH2003CFP|TO-220FPAB|1.90 g|50|Tube|
|STTH2003CR|STTH2003CR|I2PAK|1.50 g|50|Tube|



**DS1213** - **Rev 12** 

**page 14/16** 

**STTH2003** 

## **Revision history** 

## **Table 10. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|Aug-2003|7G|Previous release|
|26-Mar-2007|8|Removed ISOWATT package|
|11-Feb-2011|9|Updated base quantity for tape and reel delivery.<br>Corrected temperature in_Table 1_. Added warning paragraph above_Table 7_.|
|06-Sep-2011|10|Updated_Table 2_. Added_Figure 12_.|
|28-May-2015|11|Updated features,_Table 1: "Device summary"_and packages silhouette in<br>cover page.<br>Updated_Section 1: "Characteristics"_.<br>Updated_Section 2.2: "D²PAK package information"_.|
|07-Aug-2018|12|Updated I²PAK package information.<br>Minor text changes to improve readability.|



**DS1213** - **Rev 12** 

**page 15/16** 

**STTH2003** 

## **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 

**DS1213** - **Rev 12** 

**page 16/16** 



## Links

- [View this product on Novapart](https://novapart.co/products/STTH2003CR/fast-ultrafast-diode-300-v-20-a-dual-common)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/stmicroelectronics/stth2003cr/fast-recovery-diode-300v-20a-i2/dp/4860848)
---

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