Document Number: 93955

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

www.vishay.com

Revision: 22-Aug-08

1

Schottky Rectifier, 20 A

20TQ...S

Vishay High Power Products

FEATURES

• 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 Q101 level

DESCRIPTION

The 20TQ... Schottky rectifier series 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

20 A

35 to 45 V

Base

cathode

N/C

Anode

1

3

2

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL

CHARACTERISTICS

VALUES

UNITS

Rectangular waveform

20

A

Range

35 to 45

V

1800

A

0.51

V

Range

- 55 to 150

°C

VOLTAGE RATINGS

PARAMETER

SYMBOL

20TQ035S

20TQ040S

20TQ045S

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

20

A

Maximum peak one cycle

non-repetitive surge current

See fig. 7

5 µs sine or 3 µs rect. pulse

Following any rated load

condition and with rated

1800

10 ms sine or 6 ms rect. pulse

400

Non-repetitive avalanche energy

27

mJ

Repetitive avalanche current

Current decaying linearly to zero in 1 µs

4A