Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272

POW-R-BLOK

TM

Dual SCR Isolated Module

500 Amperes / Up to 1600 Volts

Revision Date: 12/04/2002

LD43__50

Six-Pulse Bridge Circuit Total Power Dissipation & Maximum Rated Output Current With Sink to Ambient

Resistance of Heatsink as a Parameter.

Total Power Dissipation vs Maximum Rated Output Current

0

500

1000

1500

2000

2500

3000

3500

4000

0

200

400

600

800

1000

1200

1400

Maximum Bridge Output Current (A)

0

500

1000

1500

2000

2500

3000

3500

4000

Powerex

LD43--50 Pow-R-Blok 6-Pulse Bridge

0

500

1000

1500

2000

2500

3000

3500

4000

10

30

50

70

90

110

130

Ambient Temperature (C)

0.30

0.20

0.15

0.12

0.10

0.08

0.06

0.05

0.04

0.03

0.025

0.02

0.015

0.01

Rth S-A (C/W)