STPS1045B-TR

## **STPS1045B** 

## Power Schottky rectifier 

 **Datasheet production data** 

## **Description** 

High voltage Schottky rectifier suited for switch mode power supply and other power converters. 

Packaged in DPAK, this device is intended for use in high frequency circuitries where low switching losses is required. 

**Table 1. Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|10 A|
|VRRM|45 V|
|Tj|175 °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 

October 2016 

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This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**STPS1045B** 

## **1 Characteristics** 

**==> picture [405 x 182] intentionally omitted <==**

**----- Start of picture text -----**<br>
Table 2. Absolute ratings (limiting values, at 25 °C unless otherwise stated)<br>Symbol Parameter Value Unit<br>VRRM Repetitive peak reverse voltage 45 V<br>IF(RMS) / pin Forward rms current 7 A<br>Average forward current,<br>IF(AV) δ 0.5, square wave Tc = 150 °C 10 A<br>IFSM Surge non repetitive forward current tp = 10 ms sinusoidal 75 A<br>PARM Repetitive peak avalanche power tp = 10 s, Tj = 125 °C 285 W<br>Tstg Storage temperature range -65 to +175  °C<br>== Tj Maximum operating junction temperature [(1)] 175  °C<br>dPtot 1<br>1. <  condition to avoid thermal runaway for a diode on its own heatsink<br>dTj Rth(j-a)<br>**----- End of picture text -----**<br>


**==> picture [405 x 233] intentionally omitted <==**

**----- Start of picture text -----**<br>
Table 3. Thermal resistance<br>Symbol Parameter Max. value Unit<br>R Junction to case 3  °C/W<br>th(j-c)<br>Table 4. Static electrical characteristics<br>Symbol Parameter Test conditions Min. Typ. Max. Unit<br>Tj = 25 °C - 100 A<br>IR [(1)] Reverse leakage current VR = VRRM<br>T = 125 °C - 7 15 mA<br>j<br>T = 25 °C - 0.63<br>j<br>IF = 10 A<br>T = 125 °C - 0.50 0.57<br>VF(2) Forward voltage drop j  V<br>T = 25 °C - 0.84<br>j<br>IF = 20 A<br>T = 125 °C - 0.65 0.72<br>ime j<br>1. Pulse test: tp = 5 ms,  < 2%<br>2. Pulse test: tp = 380 µs,  < 2%<br>**----- End of picture text -----**<br>


To evaluate the conduction losses, use the following equation: 

P = 0.42 x IF(AV) + 0.015 x IF2(RMS) 

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**Characteristics** 

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

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

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

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

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

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

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**Characteristics** 

**STPS1045B** 

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

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

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**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. 

## **2.1 DPAK package information** 

## **Figure 9. DPAK package outline** 

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

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**STPS1045B** 

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



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**Ordering information** 

## **3 Ordering information** 

**Table 6. Ordering information** 

**Order code Marking Package Weight Base qty Delivery mode** STPS1045B S10 45 75 Tube DPAK 0.30 g STPS1045B-TR S10 45 2500 Tape and reel ~~————~~ 

## **4** 

## **Revision history** 

**Table 7. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|Jul-2003|3B|Last issue|
|21-Apr-2005|4|IPAK package removed|
|03-Nov-2005|5|DPAK foot print dimensions updated.|
|01-Jul-2010|6|Updated Figure 10 Updated ECOPACK statement.|
|04-Nov-2014|7|Updated DPAK package information, Table 2 and<br>Figure 5. Removed PARM(Tj= 25 °C).|
|07-Apr-2015|8|Updated Table 2.<br>Format update to current standard.|
|05-Oct-2016|9|Updated DPAK package information.|



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