Document Number: 93336

For technical questions, contact: diodes-tech@vishay.com

www.vishay.com

Revision: 21-Aug-08

1

Schottky Rectifier, 2 x 20 A

40CPQ035/40CPQ040/40CPQ045

Vishay High Power Products

FEATURES

• Center tap TO-247 package

• Very low forward voltage drop

• High frequency operation

• High purity, high temperature epoxy encapsulation for

enhanced mechanical strength and moisture resistance

• Guard ring for enhanced ruggedness and long term

reliability

• Designed and qualified for industrial level

DESCRIPTION

The 40CPQ... center tap Schottky rectifier has been

optimized for very low forward voltage drop with moderate

leakage. The proprietary barrier technology allows for

reliable operation up to 150 °C junction temperature. Typical

applications are in switching power supplies, converters,

freewheeling diodes, and reverse battery protection.

PRODUCT SUMMARY

2 x 20 A

35 to 45 V

Base

common

cathode

Common

cathode

2

2

1

3

Anode

1

Anode

2

TO-247AC

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL

CHARACTERISTICS

VALUES

UNITS

Rectangular waveform

40

A

35 to 45

V

3500

A

0.43

V

- 55 to 150

°C

VOLTAGE RATINGS

PARAMETER

SYMBOL

40CPQ035

40CPQ040

40CPQ045

UNITS

Maximum DC reverse voltage

35

40

45

V

Maximum working peak reverse voltage

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

TEST CONDITIONS

VALUES

UNITS

Maximum average forward current

See fig. 5

40

A

Maximum peak one cycle non-repetitive

surge current per leg

See fig. 7

5 µs sine or 3 µs rect. pulse

Following any rated load

condition and with rated

3500

10 ms sine or 6 ms rect. pulse

430

Non-repetitive avalanche energy per leg

27

mJ

Repetitive avalanche current per leg

Current decaying linearly to zero in 1 µs

4A