Dimension
Inches
Millimeters
A
4.57
116
B
3.66
93
C
1.38
35
D
1.12
28.5
E
1.97
50
F
1.50
38
G
3.15
80
H
0.22
5.5
J
0.71
18.0
K—
M8
L
0.35
9
M
2.05
52
N
1.93
49
O
1.34
34
P
0.394
10.0
Q
2.16
55
R
0.55
14
S—
M8
T
2.09
53.1
U
0.110 x 0.032
2.8 x 0.8
V
0.54
14
Ordering Information:
Select the complete eight digit
module part number you desire
from the table below.
Example: ED431625 is a
1600 Volt, 250 Ampere Dual SCR
Isolated POW-R-BLOK Module.
Voltage
Current Rating
Type
Volts (x100)
Amperes (x10)
ED43
06
25
08 thru 16
Description:
The POW-R-BLOK combines
multiple power semiconductor
devices in a single, electrically
isolated module. POW-R-BLOK
can serve as the essential circuit
element in many industrial applica-
tions, such as motor speed control
and battery chargers. This dual
SCR module is available for use in
120, 240, 480 or 575 volt power
line applications.
POW-R-BLOK features a self
contained electrical isolation
system. By using high thermal
conductivity BeO ceramic
isolators, excellent circuit-to-
baseplate isolation (
≥ 2500 volts
RMS) has been achieved, while
maintaining efficient cooling of the
semiconductors. All ED Series
SCRs use the “di/Namic” gate
structure for ease of triggering
and high di/dt capability.
Features:
Compression Bonded
Elements
Isolated Baseplate
Insulated Package
Low Thermal Impedance
Metal Baseplate
Benefits:
No Additional insulating
Conponents Required
Easy installation
Reduced Engineering Time
Improved Heat Transfer
Voltage Stability
R-73
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
Dual SCR Isolated
POW-R-BLOK Module
250 Amperes/600-1600 Volts
ED43_ _25
Outline Drawing
ED43_ _25
Dual SCR Isolated
POW-R-BLOK Module
250 Amperes/600-1600 Volts
K THD. (2)
SCR 1
SCR 2
+
—
AK
G2
K2
K1
G1
—
+
H DIA. (4)
S DIA.
A
OUTLINE DRAWING
CONNECTION DIAGRAMS
P
O
Q
T
V
U
N
M
E
F
L
J
AK
A
K
2
1
B
G
C
D
R