# Schottky Rectifier, 40 V, 3 A, Single, DO-214AA (SMB), 2 Pins, 570 mV

![Product image](https://novapart.co/image/farnell:9803548RL/)

**URL**: https://novapart.co/products/STPS340U/schottky-rectifier-40-v-3-a-single-do-214aa-smb-2
**SKU**: STPS340U
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.0940
**Stock**: 1000+
**Lead Time**: 118 days (indicative)

## Description

Repetitive Reverse Voltage Vrrm Max:40V; Forward Current If(AV):3A; Diode Configuration:Single; Diode Case Style:DO-214AA; No. of Pins:2Pins; Forward Voltage VF Max:570mV; Forward Surge Cur

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 2Pins |
| Product Range | - |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | DO-214AA (SMB) |
| Diode Configuration | Single |
| Forward Voltage Max | 570mV |
| Forward Surge Current | 75A |
| Average Forward Current | 3A |
| Operating Temperature Max | 150°C |
| Repetitive Peak Reverse Voltage | 40V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:9803548RL/)

## **STPS340** 

## Power Schottky rectifier 

**Datasheet**  **production data** 

## **Description** 

Single chip Schottky rectifier suited for switch mode power supplies and high frequency DC to DC converters. 

Packaged in DPAK, SMC, SMB, and SMBflat, this device is intended for use in low and medium voltage operation, high frequency inverters, free wheeling and polarity protection applications where low switching losses are required. 

**Table 1. Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|3 A|
|VRRM|40 V|
|Tj(max)|150 °C|
|VF (Typ)|0.52 V|



## **Features** 

- Very small conduction losses 

- Negligible switching losses 

- Low forward voltage drop 

- Low thermal resistance 

- Extremely fast switching 

- Surface mounted device 

- Avalanche capability specified 

- ECOPACK[®] 2 compliant component for DPAK on demand 

September 2016 

DocID3624 Rev 12 

1/15 

This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**STPS340** 

## **1 Characteristics** 

**Table 2. Absolute ratings (limiting values at Tamb = 25 °C unless otherwise specified)** 

|**Symbol**|**Parameter**|||**Value**|**Unit**|
|---|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage|||40|V|
|IF(RMS)|Forward rms current||DPAK|6|A|
|IF(AV)|Average forward current,<br>δ= 0.5, square wave|Tc= 135 °C|DPAK|3|A|
|||TI= 105 °C|SMC|||
|||Tl= 95 °C|SMB|||
|||Tl= 115 °C|SMBflat|||
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal||75|A|
|PARM<br>(1)|Repetitive peak avalanche power|tp= 10 µs, Tj= 125 °C||90|W|
|Tstg|Storage temperature range|||-65 to +150|°C|
|Tj|Maximum operating junction temperature(2)|||150|°C|



1. For pulse time duration derating, please refer to _Figure 4_ . More details regarding the avalanche energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025. 

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

**Table 3. Thermal parameters** 

||**Table 3. Thermalparameters**||||
|---|---|---|---|---|
|**Symbol**|**Parameter**||**Max. value**|**Unit**|
|Rth(j-l)|Junction to lead|SMC|20|°C/W|
|||SMB|25||
|||SMBflat|15||
|Rth(j-c)|Junction to case|DPAK|5.5||



**Table 4. Static electrical characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR<br>(1)|Reverse leakage current|Tj= 25 °C|VR= VRRM|-||20|µA|
|||Tj= 125 °C||-|2|10|mA|
|VF<br>(1)|Forward voltage drop|Tj= 25 °C|IF= 3 A|-||0.63|V|
|||Tj= 125 °C||-|0.52|0.57||
|||Tj= 25 °C|IF= 6 A|-||0.84||
|||Tj= 125 °C||-|0.63|0.72||



1. Pulse test: tp = 380 µs,  < 2% 

To evaluate the conduction losses, use the following equation: P = 0.42 x IF(AV) + 0.050 x IF[2] (RMS) 

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**STPS340** 

**Characteristics** 

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

**Figure 3. Average forward current versus ambient temperature (δ = 0.5) (SMBflat)** 

**Figure 5. Relative variation of thermal impedance junction to case versus pulse duration (DPAK)** 

**Figure 2. Average forward current versus ambient temperature (** δ **= 0.5)(DPAK, SMB, SMC)** 

**Figure 4. Normalized avalanche power derating versus pulse duration (Tj = 125 °C)** 

**Figure 6. Relative variation of thermal impedance junction to ambient versus pulse duration (SMB)** 

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**Characteristics** 

**STPS340** 

**Figure 7. Relative variation of thermal impedance junction to ambient versus pulse duration (SMC)** 

**Figure 9. Reverse leakage current versus reverse voltage applied (typical values)** 

**Figure 11. Forward voltage drop vs. forward current** 

**Figure 8. Relative variation of thermal impedance junction to lead versus pulse duration (SMBflat)** 

**Figure 10. Junction capacitance versus reverse voltage applied (typical values)** 

**Figure 12. Thermal resistance junction to ambient versus copper surface under tab** 

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**STPS340** 

**Characteristics** 

**Figure 13. Thermal resistance junction to Figure 14. Thermal resistance junction to ambient versus copper surface under each lead ambient versus copper surface under each lead** 

**Figure 15. Thermal resistance junction to ambient versus copper surface under each lead** 

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**Package Information** 

**STPS340** 

## **2 Package Information** 

- Epoxy meets UL94,V0 

- Cooling method: by conduction (C) 

- Band indicates cathode (SMB, SMBflat, SMC) 

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 DPAK package information** 

## **Figure 16. DPAK package outline** 

**==> picture [380 x 388] intentionally omitted <==**

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

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**Package Information** 

**Table 5. DPAK package mechanical data** 

||**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 5. DPAK package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|
|---|---|---|---|---|---|---|
|**Ref.**|**Dimensions**||||||
||**Millimeters**|||**Inches**|||
||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|A|2.18||2.40|0.085||0.094|
|A1|0.90||1.10|0.035||0.043|
|A2|0.03||0.23|0.001||0.009|
|b|0.64||0.90|0.025||0.035|
|b4|4.95||5.46|0.194||0.214|
|c|0.46||0.61|0.018||0.024|
|c2|0.46||0.60|0.018||0.023|
|D|5.97||6.22|0.235||0.244|
|D1|4.95||5.60|0.194||0.220|
|E|6.35||6.73|0.250||0.264|
|E1|4.32||5.50|0.170||0.216|
|e||2.28|||0.090||
|e1|4.40||4.70|0.173||0.185|
|H|9.35||10.40|0.368||0.409|
|L|1.00||1.78|0.039||0.070|
|L2|||1.27|||0.050|
|L4|0.60||1.02|0.023||0.040|
|V2|-8°||+8°|-8°||8°|



## **Figure 17. DPAK footprint dimensions (in mm)** 

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**Package Information** 

**STPS340** 

## **2.2 SMBflat package information** 

## **Figure 18. SMBflat package outline** 

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**Package Information** 

**Table 6. SMBflat package mechanical data** 

||**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 6. SMBflat package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|
|---|---|---|---|---|---|---|
|**Ref.**|**Dimensions**||||||
||**Millimeters**|||**Inches**|||
||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|A<br>~~ee~~<br>~~i~~|0.90<br>~~es ee es~~|~~ee es~~|1.10<br>~~ee es~~|0.035||0.043|
|b<br>~~ee~~<br>~~i~~<br>~~ee~~|1.95<br>~~es ee es~~<br>~~es~~|~~ee es~~<br>~~ee~~|2.20<br>~~ee es~~<br>~~ee~~|0.077<br>~~ee~~|~~ee~~|0.087|
|c<br>~~i ~~<br>~~ee~~|0.15<br> ~~es ee es~~<br>~~es~~|~~ee es~~<br>~~ee~~|0.40<br>~~ee es~~<br>~~ee~~|0.006<br>~~ee~~|~~ee~~|0.016|
|D<br>~~ee~~<br>~~a~~<br>~~ee~~|3.30<br>~~es ~~|~~ee~~|3.95<br>~~ee~~|0.130<br>~~ee~~|~~ee~~|0.155|
|E<br>~~ee~~|5.10||5.60|0.200||0.220|
|E1<br>~~ee~~<br>~~a~~<br>~~ee~~<br>~~i~~|4.05<br>~~es~~<br>|~~es~~<br>|4.60<br>~~es~~<br>|0.159<br>~~es~~|~~es~~<br>~~ee~~|0.181<br>~~es~~|
|L<br>~~a~~<br>~~ee~~<br>~~i~~<br>~~ee~~|0.75<br>~~es~~<br>~~es~~|~~es~~<br>~~eees~~|1.50<br>~~es~~<br>~~eees~~|0.029<br>~~es~~|~~es~~<br>~~ee~~|0.059<br>~~es~~|
|L1<br>~~ee~~<br>~~i ~~<br>~~ee~~|~~es~~<br> ~~es~~|0.40<br>~~es~~<br>~~eees~~|~~es~~<br>~~eees~~|~~es~~|0.016<br>~~es~~<br>~~ee~~|~~es~~|
|L2<br> <br>~~ee~~|~~es~~<br>~~se~~|0.60<br>~~eees~~<br>~~se~~|~~eees~~<br>~~se~~|~~se~~|0.024<br>~~se~~|~~se~~|



## **Figure 19. SMBflat footprint, dimensions in mm (inches)** 

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**Package Information** 

**STPS340** 

## **2.3 SMB package information** 

## **Figure 20. SMB package outline** 

**==> picture [338 x 300] intentionally omitted <==**

**----- Start of picture text -----**<br>
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**Table 7. SMB package mechanical data** 

||**Table 7. SMBpackage mechanical data**|**Table 7. SMBpackage mechanical data**|**Table 7. SMBpackage mechanical data**|**Table 7. SMBpackage mechanical data**|
|---|---|---|---|---|
|**Ref.**|**Dimensions**||||
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A1|1.90|2.45|0.075|0.096|
|A2|0.05|0.20|0.002|0.008|
|b|1.95|2.20|0.077|0.087|
|c|0.15|0.40|0.006|0.016|
|D|3.30|3.95|0.130|0.156|
|E|5.10|5.60|0.201|0.220|
|E1|4.05|4.60|0.159|0.181|
|L|0.75|1.50|0.030|0.059|



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**Package Information** 

## **Figure 21. SMB footprint, dimensions in mm (inches)** 

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**Package Information** 

**STPS340** 

## **2.4 SMC package information** 

**==> picture [151 x 11] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 22. SMC package outline<br>**----- End of picture text -----**<br>


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**Package Information** 

**Table 8. SMC package mechanical data** 

||**Table 8. SMC package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 8. SMC package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 8. SMC package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|**Table 8. SMC package mechanical datapackage mechanical dataackage mechanical datage mechanical datae mechanical data**|
|---|---|---|---|---|
|**Ref.**|**Dimensions**||||
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A1|1.90|2.45|0.075|0.096|
|A2|0.05|0.20|0.002|0.008|
|b(1)|2.90|3.20|0.114|0.126|
|c(1)|0.15|0.40|0.006|0.016|
|D|5.55|6.25|0.218|0.246|
|E|7.75|8.15|0.305|0.321|
|E1|6.60|7.15|0.260|0.281|
|E2|4.40|4.70|0.173|0.185|
|L|0.75|1.50|0.030|0.059|



1. Dimensions b and c apply to plated leads 

## **Figure 23. SMC footprint, dimensions in mm (inches)** 

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**Ordering information** 

**STPS340** 

## **3 Ordering information** 

**Table 9. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|STPS340U|U34|SMB|107 mg|2500|Tape and reel|
|STPS340S|S34|SMC|243 mg|||
|STPS340B-TR|S3 40|DPAK|320 mg|||
|STPS340UF|FU34|SMBflat|50 mg|5000||



## **4 Revision history** 

**Table 10. Revision history** 

|||**Table 10. Revision history**|
|---|---|---|
|**Date**|**Revision**|**Changes**|
|Jul-2003|7|Last update.|
|Feb-2005|8|Layout update. No content change.|
|08-Feb-2007|9|Reformatted to current standard. Added ECOPACK statement.<br>Added SMBflat package.|
|10-Feb-2009|10|Updated ECOPACK statement. Corrected Y axis in Figure 10.|
|23-Apr-2015|11|Updated DPAK and reformatted to current standard.|
|22-Sep-2016|12|Updated DPAK package information and reformatted to current<br>standard.|



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

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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. 

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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. 

© 2016 STMicroelectronics – All rights reserved 

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