# Schottky Rectifier, 40 V, 6 A, Single, TO-252 (DPAK), 2 Pins, 840 mV

![Product image](https://novapart.co/image/farnell:1697512/)

**URL**: https://novapart.co/products/STPS640CB/schottky-rectifier-40-v-6-a-single-to-252-dpak-2
**SKU**: STPS640CB
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.6180
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| No. Of Pins | 2Pins |
| Product Range | STPS6 |
| Diode Mounting | Surface Mount |
| Diode Case Style | TO-252 (DPAK) |
| Diode Configuration | Single |
| Forward Voltage Max | 840mV |
| Forward Surge Current | 75A |
| Average Forward Current | 6A |
| Operating Temperature Max | 150°C |
| Repetitive Peak Reverse Voltage | 40V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1697512/)

## **STPS640C** 

## Power Schottky rectifier 

− **Datasheet production data** 

## **Description** 

This dual Schottky rectifier is designed for switch mode power supplies and other power converters. 

This device is intended for use in low and medium voltage operation, and in particular high frequency circuits where low switching losses are required (free wheeling and polarity protection). 

**Table 1. Device summary** Al **Symbol Value** A2 I 2 x 3 A F(AV) VRRM 40 V Tj(max) 150 °C VF(typ) 0.50 V ~~: ==~~ 

## **Features** 

- Very small conduction losses 

- Extremely fast switching 

- Low thermal resistance 

- Negligible switching losses 

- Low forward voltage drop 

- Low capacitance 

- Avalanche specification 

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

November 2014 

DocID3628 Rev 8 

1/8 

This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**STPS640C** 

**1 Characteristics** 

**Table 2. Absolute ratings (limiting values, per diode, at 25 °C unless otherwise stated)** 

**Symbol Parameter Value Unit** VRRM Repetitive peak reverse voltage 40 V I Forward rms current 6 A F(RMS) IF(AV) Average forward current, square wave Tc = 120 °C, δ = 0.5 3 A IFSM Surge non repetitive forward current tp = 10 ms sinusoidal 75 A PARM Repetitive peak avalanche power tp = 10 μ s, Tj = 125 °C 90 W Tstg Storage temperature range -65 to + 150 °C ~~co~~ Tj Maximum operating junction temperature[(1)] 150 °C dPtot 1 1. < condition to avoid thermal runaway for a diode on its own heatsink dTj Rth(j-a) **Table 3. Thermal parameters Symbol Parameter Value Unit** per diode 5.5 R Junction to case th(j-c) per device 3 °C/W ~~——s~~ Rth(c) coupling 0.5 When the diodes 1 and 2 are used simultaneously: Δ Tj (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 Min. Typ Max. Unit** Tj = 25 °C - - 100 µA IR[(1)] Reverse leakage current VR = VRRM T = 125 °C - 2 10 mA j T = 25 °C - - 0.63 j IF = 3 A T = 125 °C - 0.50 0.57 VF(2) Forward voltage drop j V T = 25 °C - - 0.84 j IF = 6 A T = 125 °C - 0.67 0.72 ~~{Seer~~ j 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 = 0.42 x IF(AV) + 0.050 IF2(RMS) 

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**STPS640C** 

**Characteristics** 

**Figure 1. Average forward power dissipation versus average forward current (per diode)** 

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

**==> picture [221 x 134] intentionally omitted <==**

**----- Start of picture text -----**<br>
PF(AV)(W)<br>2.50<br>2.25 ee[| δ  = 0.05 δ  = 0.1 δ el  = 0.2 δ  = 0.5 Poot ft<br>2.00 [| | | f Wl WA) | Ws TOA<br>pot A sy eA<br>1.75 Poof | ft tT et Te NT<br>1.50 eeeea a ee)Yeaey A eeeaa aeee δ  = 1 —<br>1.25 ee A Ae ce<br>Poof | [77 sf [Ae Tt te<br>1.00 A A Ae a ee ee<br>poof | FY YY vy, | ft tt<br>0.75 Ayee ey ey Ayae AZeePeee || T<br>0.50<br>0.25 lL fF | I F(AV) (A) | | δ [=][tp/T] tp<br>0.00 ae<br>LAT | ht UT UT | [ | Jf Tt Tf<br>0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0<br>**----- End of picture text -----**<br>


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

**==> picture [182 x 136] intentionally omitted <==**

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


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

**==> picture [222 x 131] intentionally omitted <==**

**----- Start of picture text -----**<br>
Zth(j-c)/Rth(j-c)<br>1.0 Tn oe<br>0.8<br>eell<br>Peer δ  = 0.5 er<br>0.6 PraA il<br>Caen<br>0.4 δ  = 0.2<br>Ce<br>δ  = 0.1<br>eee TTT T I<br>0.2<br>Seer<br>Single pulse<br>0.0 TetCr t p (s) To δ [=tp/T] tp<br>1E-3 1E-2 1E-1 1E+0<br>**----- End of picture text -----**<br>


**Figure 5. Reverse leakage current versus reverse voltage applied (typical values, per diode)** 

**Figure 6. Junction capacitance versus reverse voltage applied (typical values, per diode)** 

**==> picture [452 x 133] intentionally omitted <==**

**----- Start of picture text -----**<br>
IR(A) C(pF)<br>1E-2 500<br>= ee eee T =150°C j ee po VOSC F=1MHz =30mVRMS<br>T =25°Cj<br>SaaS = T =125°Cj ee a<br>1E-3<br>sof——————————————————————— 100 EU|<br>T =100°Cj<br>1E-4 eee) T =75°Cj<br>VR(V) VR(V)<br>1E-5 10<br>0 5 10 15 20 25 30 35 40 1 2 5 10 20 50<br>**----- End of picture text -----**<br>


DocID3628 Rev 8 

3/8 

**Characteristics** 

**STPS640C** 

**Figure 7. Forward voltage drop versus forward current (maximum values, per diode)** 

**Figure 8. Thermal resistance junction to ambient versus copper surface under tab** 

**==> picture [439 x 132] intentionally omitted <==**

**----- Start of picture text -----**<br>
IFM(A)<br>10.0 Se 10 07 i<br>ee [es] [ee] [|] T =150°Cj a a Ga cad 2 OG | colt 8 fete [eee] se OQrr =m | Fc<br>SESPOON (typical values) ERR | SeOGG<br> CETTE] [. / T =25°Cj | 60 BSET\E Ty yyyt<br>1.0 Pittitbr vw Ld EE) SSE EEE<br>SSSesSSSZ | soL- AORKK] fF tT tT tf ftEEEft pt tp tp PP<br>f [| | [ eeJ iF tT [7t2 TT tT tT tT tT yt yt tT ey yt 4030  AerrrOO QO GG<br>ee<br>0.1 / VFM(V) 100 }—+—_+_}_}[ [ | [| | [ 7| 7; | [| +}Jf [| fT JT +s.J [— JT ‘CU(em) JT 7 [|| fT +| JT +| _} fT fT +ft J |]fy]Tf<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0<br>**----- End of picture text -----**<br>


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DocID3628 Rev 8 

**STPS640C** 

**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. 

## **Figure 9. DPAK dimension definitions** 

**==> picture [349 x 305] intentionally omitted <==**

**----- Start of picture text -----**<br>
E<br>A<br>b4<br>c2 E1<br>L2<br>Thermal pad<br>D1<br>D D<br>H R<br>L4<br>A1<br>e b R<br>e1 c<br>ful i<br>rene a ol e<br>A2<br>L1<br>L<br>V2<br>G auge<br>0.25 plane<br>ee )<br>**----- End of picture text -----**<br>


_Note:_ 

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

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**STPS640C** 

**Package Information** 

**Table 5. DPAK dimension values** 

||**Table 5. DPAK dimension values**|**Table 5. DPAK dimension values**|**Table 5. DPAK dimension values**|**Table 5. DPAK dimension values**|**Table 5. DPAK dimension values**|**Table 5. DPAK dimension values**|
|---|---|---|---|---|---|---|
|**Ref.**<br>~~ee~~|**Dimensions**<br>~~ee~~||||||
||**Millimeters**<br>~~ee~~<br>~~ee~~<br>~~ee~~|||**Inches**<br>~~ee~~<br>~~ee~~|||
||**Min.**<br>~~ee~~<br>~~ee~~|**Typ.**<br>~~ee~~|**Max.**<br>~~ee~~|**Min.**<br>~~ee~~|**Typ.**<br>~~ee~~|**Max.**<br>~~ee~~|
|A<br>~~ee~~<br>~~es~~|2.18<br>~~ee~~||2.40|0.085||0.094|
|A1<br>~~ee~~<br>~~es~~<br>~~es~~|0.90<br>~~ee~~<br>~~es~~|~~ss~~|1.1<br>~~ss~~|0.035||0.043|
|A2<br>~~es~~<br>~~es~~<br>~~es~~|0.03<br>~~es~~<br>~~es~~|~~ss~~<br>~~ss~~|0.23<br>~~ss~~<br>~~ss~~|0.001||0.01|
|b<br>~~es ~~<br>~~es~~<br>~~es~~|0.64<br> ~~es ~~<br>~~es~~<br>~~es~~|~~ss~~<br>~~ss~~<br>~~ss~~|0.90<br>~~ss~~<br>~~ss~~<br>~~ss~~|0.025||0.035|
|b4<br>~~es ~~<br>~~es~~<br>~~es~~|4.95<br> ~~es ~~<br>~~es~~<br>~~es~~|~~ss~~<br>~~ss~~<br>~~ss~~|5.46<br>~~ss~~<br>~~ss~~<br>~~ss~~|0.195||0.215|
|c<br>~~es ~~<br>~~es~~<br>~~es~~|0.46<br> ~~es ~~<br>~~es~~<br>~~es~~|~~ss~~<br>~~ss~~<br>~~ss~~|0.61<br>~~ss~~<br>~~ss~~<br>~~ss~~|0.018||0.024|
|c2<br>~~es ~~<br>~~es~~<br>~~es~~|0.46<br> ~~es ~~<br>~~es~~|~~ss~~<br>~~ss~~|0.60<br>~~ss~~<br>~~ss~~|0.018||0.024|
|D<br>~~es ~~<br>~~es~~<br>~~es~~|5.97<br> ~~es ~~<br>~~es es~~|~~ss~~<br>~~es~~|6.22<br>~~ss~~|0.235||0.245|
|D1<br>~~es~~<br>~~es~~<br>~~es~~|5.10<br>~~es es~~<br>~~es~~|~~es~~<br>~~ss~~|~~ss~~|0.201|||
|E<br>~~es~~<br>~~es~~<br>~~es~~|6.35<br>~~es es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~ss~~<br>~~es~~|6.73<br>~~ss~~<br>~~es~~|0.250||0.265|
|E1<br>~~es ~~<br>~~es~~<br>~~es~~|4.32<br> ~~es ~~<br>~~es~~<br>~~es es~~|~~ss~~<br>~~es~~<br>~~es~~|~~ss~~<br>~~es~~|0.170|||
|e1<br>~~es~~<br>~~es~~<br>~~es~~|4.4<br>~~es ~~<br>~~es es~~<br>~~es~~|~~es~~<br>~~es~~<br>~~ss~~|4.7<br>~~es~~<br>~~ss~~|0.173||0.185|
|H<br>~~es~~<br>~~es~~<br>~~es~~|9.35<br>~~es es~~<br>~~es~~|~~es~~<br>~~ss~~|10.40<br>~~ss~~|0.368||0.407|
|L<br>~~es ~~<br>~~es~~<br>~~es~~|1.0<br> ~~es ~~<br>~~es es~~|~~ss~~<br>~~es~~|1.78<br>~~ss~~|0.039||0.070|
|L2<br>~~es~~<br>~~es~~<br>~~es~~|~~es es~~<br>~~es~~|~~es~~<br>~~ss~~|1.27<br>~~ss~~|||0.05|
|L4<br>~~es~~<br>~~es~~<br>~~es~~|0.6<br>~~es es~~<br>~~es~~<br>~~ss~~|~~es~~<br>~~ss~~<br>~~ss~~|1.02<br>~~ss~~|0.024||0.040|
|V2<br>~~es ~~<br>~~es~~|0°<br> ~~es ~~<br>~~ss~~|~~ss~~<br>~~ss~~|8°<br>~~ss~~|0°||8°|



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**Ordering information** 

## **3 Ordering information** 

**Table 6. Ordering information Order code Marking Package Weight Base qty Delivery mode** STPS640CB S640C 75 Tube DPAK 0.32 g STPS640CB-TR S640C 2500 Tape and reel ~~—— =~~ **4 Revision history** 

**Table 7. Document revision history** 

**Date Revision Changes** Aug-2003 6B Last issue 22-Mar-2007 7 Updated _Figure 8_ Updated ECOPACK statement. Updated DPAK package information, _Table 2_ and 20-Nov-2014 8 _Figure 3_ . Removed PARM (Tj = 25 °C), TO-220AB and TO-220FPAB package information. ~~———~~ 

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**STPS640C** 

## **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. 

© 2014 STMicroelectronics – All rights reserved 

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## Links

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- [Supplier page](https://es.farnell.com/en-ES/stmicroelectronics/stps640cb/diode-rectifier-schottky-2x3a/dp/1697512)
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