Document Number: 94219

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

www.vishay.com

Revision: 13-Aug-08

1

Schottky Rectifier, 2 x 20 A

40L40CWPbF/40L45CWPbF

Vishay High Power Products

FEATURES

• Center tap TO-247 package

• High

purity,

high

temperature

epoxy

encapsulation

for

enhanced

mechanical

strength and moisture resistance

• Very low forward voltage drop

• High frequency operation

• Guard ring for enhanced ruggedness and long term

reliability

• Lead (Pb)-free (“PbF” suffix)

• Designed and qualified for industrial level

DESCRIPTION

The 40L..CWPbF 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 parallel switching power supplies.

PRODUCT SUMMARY

2 x 20 A

40/45 V

Base

common

cathode

Common

cathode

2

2

1

3

Anode

1

Anode

2

TO-247AC

Available

Pb-free

RoHS*

COMPLIANT

MAJOR RATINGS AND CHARACTERISTICS

SYMBOL

CHARACTERISTICS

VALUES

UNITS

Rectangular waveform

40

A

40/45

V

1240

A

0.42

V

- 55 to 150

°C

VOLTAGE RATINGS

PARAMETER

SYMBOL

40L40CWPbF

40L45CWPbF

UNITS

Maximum DC reverse voltage

40

45

V

Maximum working peak reverse voltage

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

TEST CONDITIONS

VALUES

UNITS

Maximum average

forward current

See fig. 5

per leg

20

A

per device

40

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

1240

10 ms sine or 6 ms rect. pulse

350

Non-repetitive avalanche energy per leg

20

mJ

Repetitive avalanche current per leg

Current decaying linearly to zero in 1 µs

3A

* Pb containing terminations are not RoHS compliant, exemptions may apply