ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
Dual SCR/Diode Isolated Module
250 Amperes / Up to 1600 Volts
TM
OUTLINE DRAWING
T - M8 THD. (3 TYP.)
M
K
U - DIA. (4 TYP.)
Description:
Powerex Dual SCR/Diode 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.
TM
POW-R-BLOK
has been tested and
recognized by the Underwriters
Laboratories.
ND42__25
Dual SCR/Diode Isolated
TM
POW-R-BLOK Module
250 Amperes / 600-1600 Volts
A
G J
K1
G1
AK
N
K
C
B
A
V
Q
W
S
P
D E
W
F
H
L
R
Features:
T
T
T
T
T
Electrically Isolated Heatsinking
Aluminum Nitride Insulator
Compression Bonded Elements
Metal Baseplate
Low Thermal Impedance
for Improved Current Capability
T
Quick Connect Gate Terminal
with Provision for Keyed Mating
Plug
T
UL Recognized
K1
G1
K
SCR 1
AK
DIODE 2
A
CONNECTION DIAGRAM
ND42 Outline Dimensions
Dimension
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
W
Inches
4.57
3.66
3.15
2.17
2.06
2.07
1.97
1.90
1.50
1.38
1.35
1.122
.71
.57
.625
.394
.350
M8 Metric
.22 Dia.
.110 x .032
.12
Millimeters
116
93
80.0
55.1
52.3
52.0
50.0
48.3
38.1
35.0
34.3
28.5
18.0
14.5
15.9
10.00
8.9
M8
5.6 Dia.
2.8 x 0.8
3.0
Ordering Information
:
Select the complete eight digit
module part number from the table
below.
Example: ND421625 is a 1600Volt,
250 Ampere Dual SCR/Diode
TM
Isolated
POW-R-BLOK
Module
Benefits:
T
No Additional Insulation
Components Required
T
Easy Installation
T
No Clamping Components
Required
T
Reduce Engineering Time
Type
ND42
Voltage
Volts
(x100)
06
08
10
12
14
16
Current
Amperes
(x 10)
25
Applications:
T
T
T
T
T
Bridge Circuits
AC & DC Motor Drives
Battery Supplies
Power Supplies
Large IGBT Circuit Front Ends
Note: Dimensions are for reference only.
Revision Date: 12/04/2002
POWEREX [ POWEREX POWER SEMICONDUCTORS ]
