Powerex CD43__90B User Manual
Cd43 b

 
 
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
90 Amperes / Up to 1800 Volts
Revision Date: 04/28/2009
CD43__90B
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CD43 Outline Dimensions
Dimension Inches
Millimeters
A 3.66
93
B 0.79
20
C 3.15
80
D 1.18
30
F 0.61 15.5
G 0.79
20
H 0.79
20
J 0.16
4
K 0.22 5.7
L 0.59 15
M 1.10
28
N 0.31
8
P 0.94
24
Q 1.16 29.4
S
0.11 x .03
2.8 x 0.8
T 0.25 6.4
U M5 M5
Note: Dimensions are for reference only.
CD43__90B
Dual SCR Isolated 
POW-R-BLOK
TM
Module
90 Amperes / Up to 1800 Volts
 
 
 
 
 
 
 
 
 
Ordering Information
:
Select the complete nine digit module 
part number from the table below. 
Example: CD431690B is a 1600Volt, 
90 Ampere Dual SCR Isolated 
POW-R-BLOK
TM
Module
Type
Voltage
Volts
(x100)
Current
Amperes
Version
CD43
08 
12 
14 
16 
18 
 
 
90
B
 
 
 
 
Description:
Powerex Dual SCR Modules are 
designed for use in applications 
requiring phase control and isolated 
packaging. The modules are isolated 
for easy mounting with other 
components on a common heatsink. 
POW-R-BLOK
TM
has been tested and
recognized by the Underwriters 
Laboratories. 
 
 
Features:
Electrically Isolated Heatsinking
DBC Alumina (Al
2
O
3
) Insulator
Copper Baseplate
Low Thermal Impedance
 for Improved Current Capability 
UL Recognized (E78240)
 
 
 
Benefits:
No Additional Insulation
 Components Required 
Easy Installation
No Clamping Components
 Required 
Reduce Engineering Time
 
 
 
Applications:
Bridge Circuits
AC & DC Motor Drives
Battery Supplies
Power Supplies
Large IGBT Circuit Front Ends
Lighting Control
Heat & Temperature Control
Welders
OUTLINE DRAWING
45
1
2
3
G
H
F
L
B
A
"S" FASTON TAB
"U" THREAD
K
T
67
C
Q
P
N
D M
J
+
1
~
3
-
4
5
2
7
6
CONNECTION DIAGRAM
