![](http://datasheet.mmic.net.cn/160000/ED471221_datasheet_8698618/ED471221_1.png)
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
K—
M8
L
0.35
9
M
2.05
52
N
1.93
49
O
1.34
34
P
0.394
10
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
Voltage
Current Rating
Type
Volts (x100)
Amperes (x10)
ED42
06
21
ED47
08
12
14
16
18
20
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. These SCR
and diode combinations are avail-
able for use in 120, 240, 480 or
575 volt power line applications.
POW-R-BLOK features a self
contained electrical isolation sys-
tem. By using high thermal con-
ductivity BeO ceramic isolators,
excellent circuit-to-baseplate
isolation (
≥2500 volts RMS) has
been achieved, while maintaining
efficient cooling of the semicon-
ductors. 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
Metal Baseplate
Low Thermal Impedance
UL Recognized
A
Benefits:
No Additional Insualting
Components Required
Easy Installation
Reduce Engineering Time
Improved Heat Transfer
Voltage Stability
R-61
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
SCR/Diode Isolated
POW-R-BLOK Module
210 Amperes/600-2000 Volts
ED42_ _21
ED47_ _21
Outline Drawing
ED42_ _21, ED47_ _21
SCR/Diode Isolated
POW-R-BLOK Module
210 Amperes/600-2000 Volts
Ordering Information:
Select the complete eight digit
module part number you desire
from the table below.
Example: ED422021 is a
2000 Volt, 210 Ampere SCR/Diode
Isolated POW-R-BLOK Module.
CONNECTION DIAGRAMS
K THD. (2)
—
+
H DIA. (4)
S DIA.
A
OUTLINE DRAWING
P
O
Q
T
V
U
N
M
E
F
L
J
AK
A
K
2
1
B
G
C
D
R
DIODE 2
DIODE 1
SCR 2
SCR 1
+
—
+
AK
G2
K2
K1
G1
ED42
ED47
A