Powerex ND41__32 Data Sheet
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 POW-R-BLOK
www.pwrx.com Dual Diode Isolated Module
Up to 320 Amperes & 2000 Volts
OUTLINE DRAWING
K
C
B
A
Q
DIODE 1
T - M8 THD. (3 TYP.)
K
M
G
J
E
ND41 Outline Dimensions
Dimension Inches Millimeters
A 4.57 116
B 3.66 93
C 3.15 80.0
E 2.06 52.3
F 2.05 52.0
G 1.97 50.0
H 1.90 48.3
J 1.50 38.1
K 1.38 35.0
L 1.26 32.0
M 1.122 28.5
N .71 18.0
P .57 14.5
Q .625 15.9
R .394 10.00
S .350 8.9
T M8 Metric M8
U .250 Dia. 6.35 Dia.
W .12 3.0
Note: Dimensions are for reference only.
A
P
K
A
DIODE 2
CONNECTION DIAGRAM
U - DIA. (4 TYP.)
AK
N
S
W
W
R
AK
L
F
H
ND41__32
Dual Diode Isolated
POW-R-BLOKTM Module
200-320 Amperes / 600-2000 Volts
Ordering Information:
Select the complete eight digit
module part number from the table
below.
Example: ND412032 is a 2000Volt,
320 Ampere Dual Diode Isolated
POW-R-BLOK
TM
Module
Type
ND41 06
Voltage
Volts
(x100)
08
10
12
14
16
18
20
Current
Amperes
(x10)
32
Description:
Powerex Dual Diode Modules are
designed for use in applications
requiring rectification and isolated
packaging. The modules are isolated
for easy mounting with other
components on a common heatsink.
POW-R-BLOK
recognized by the Underwriters
Laboratories.
Features:
Electrically Isolated Heatsinking
Aluminum Nitride Isolator
Compression Bonded Elements
Metal Baseplate
Low Thermal Impedance
for Improved Current Capability
UL Recognized
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
ND41__32
TM
TM
has been tested and
Revision Date: 05/17/2010
)
A
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272 POW-R-BLOK
ND41__32
TM
www.pwrx.com Dual Diode Isolated Module
Up to 320 Amperes & 2000 Volts
Absolute Maximum Ratings
Characteristics Conditions Symbol Units
Repetitive Peak Reverse Blocking Voltage V
Non-Repetitive Peak Reverse Blocking Voltage
V
(t < 5 msec)
RMS Forward Current 180° Conduction, TC=101°C
180° Conduction, T
180° Conduction, T
180° Conduction, T
=105°C
C
=109°C
C
=112°C
C
verage Forward Current 180° Conduction, TC=101°C
180° Conduction, T
180° Conduction, T
180° Conduction, T
Peak One Cycle Surge Current, Non-Repetitive
Initial T
= Tj max
j
60 Hz, 100% V
60 Hz, No V
Peak Three Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
Peak Ten Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
=105°C
C
=109°C
C
=112°C
C
reapplied
RRM
reapplied
RRM
reapplied I
RRM
reapplied I
RRM
I2t for Fusing for One Cycle, 8.3 milliseconds I2t 266,000 A2 sec
Operating Temperature TJ -40 to +150 °C
Storage Temperature T
Max. Mounting Torque, M6 Mounting Screw 45
Max. Mounting Torque, M8 Terminal Screw 95
Module Weight, Typical 840 g
1.85 lb.
V Isolation @ 25C V
up to 2000 V
RRM
V
RSM
I
F(RMS)
I
F(RMS)
I
F(RMS)
I
F(RMS
I
F(AV)
I
F(AV)
I
F(AV)
I
F(AV)
I
FSM
I
FSM
5750 A
FSM
4975 A
FSM
-40 to +150 °C
stg
+ 200 V
RRM
502
470
440
408
320
300
280
260
8000
10,000
A
A
A
A
A
A
A
A
A
A
in.-Lb.
5
Nm
in.-Lb.
11
2500 V
rms
Nm
Revision Date: 05/17/2010
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