ND420825 View Datasheet(PDF) - Powerex
Part Name
Description
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ND420825 Datasheet PDF : 5 Pages
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Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
ND42__25
POW-R-BLOKTM
Dual SCR/Diode Isolated Module
250 Amperes / Up to 1600 Volts
2000
1800
Powerex ND42--25 Pow-R-Blok 6-Pulse Bridge
0.02 0.015 0.01
0.025
0.03
Rth S-A (C/W)
1600
0.04
1400
0.05
1200 0.06
1000 0.08
800 0.10
0.12
600 0.15
0.20
400
0.30
200
0
10
30
50
70
90
110
Ambient Temperature (C)
Total Power Dissipation vs Maximum Rated Output Current
2000
2000
1800
1800
1600
1600
1400
1400
1200
1200
1000
1000
800
800
600
600
400
400
200
200
0
0
130
0
100 200 300 400 500 600 700 800
Maximum Bridge Output Current (A)
Six-Pulse Bridge Circuit Total Power Dissipation & Maximum Rated Output Current With Sink to Ambient
Resistance of Heatsink as a Parameter.
Revision Date: 05/17/2010
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