POWEREX ND421225, ND421625, ND420825 Datasheet
ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
OUTLINE DRAWING
K1
G1
J
G
D
E
K1
G1
M K
V
T - M8 THD. (3 TYP.)
U - DIA. (4 TYP.)
A
C
B
A
Q
P
K
DIODE 2
A
AK
N
K
S
W
W
H
L
R
SCR 1
AK
F
ND42__25
Dual SCR/Diode Isolated
POW-R-BLOK
TM
Module
250 Amperes / 600-1600 Volts
CONNECTION DIAGRAM
ND42 Outline Dimensions
Dimension Inches Millimeters
A 4.57 116
B 3.66 93
C 3.15 80.0
D 2.17 55.1
E 2.06 52.3
F 2.07 52.0
G 1.97 50.0
H 1.90 48.3
J 1.50 38.1
K 1.38 35.0
L 1.35 34.3
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 .22 Dia. 5.6 Dia.
V .110 x .032 2.8 x 0.8
W .12 3.0
Note: Dimensions are for reference only.
Ordering Information
Select the complete eight digit
module part number from the table
below.
Example: ND421625 is a 1600Volt,
250 Ampere Dual SCR/Diode
Isolated
POW-R-BLOK
Type
ND42 06
Voltage
Volts
(x100)
08
10
12
14
16
:
TM
Module
Current
Amperes
(x 10)
25
POW-R-BLOK
250 Amperes / Up to 1600 Volts
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.
POW-R-BLOK
recognized by the Underwriters
Laboratories.
Features:
T Electrically Isolated Heatsinking
T Aluminum Nitride Insulator
T Compression Bonded Elements
T Metal Baseplate
T Low Thermal Impedance
for Improved Current Capability
T Quick Connect Gate Terminal
with Provision for Keyed Mating
Plug
T UL Recognized
Benefits:
T No Additional Insulation
Components Required
T Easy Installation
T No Clamping Components
Required
T Reduce Engineering Time
Applications:
T Bridge Circuits
T AC & DC Motor Drives
T Battery Supplies
T Power Supplies
T Large IGBT Circuit Front Ends
TM
TM
has been tested and
Revision Date: 12/04/2002
ND42__25
Powerex, Inc., Hillis Street, Youngwood, Pennsy l vania 15697 (724) 925-7272
Dual SCR/Diode Isolated Module
POW-R-BLOK
250 Amperes / Up to 1600 Volts
TM
Absolute Maximum Ratings
Characteristics Conditions Symbol Units
Repetitive Peak Forward and Reverse Blocking
Voltage
Non-Repetitive Peak Reverse Blocking Voltage
(t < 5 msec)
RMS Forward Current 180° Conduction, TC=89°C I
Average Forward Current 180° Conduction, TC=89°C I
Peak One Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
Peak Three Cycle Surge Current, Non-Repetitive 60 Hz, 100%V
Peak Ten Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
I2t for Fusing for One Cycle, 8.3 milliseconds I2t 322,000 A2 sec
Maximum Rate-of-Rise of On-State Current,
(Non-Repetitive)
V
D
T
=25°C, IG=500mA,
j
=0.67 V
T
r
Peak Gate Power Dissipation PGM 16 W
Average Gate Power Dissipation P
Peak Forward Gate Current I
Peak Forward Gate Voltage V
Peak Reverse Gate Voltage V
Operating Temperature TJ -40 to +130 °C
Storage Temperature T
Max. Mounting Torque, M6 Mounting Screw 45
Max. Mounting Torque, M8 Terminal Screw 110
Module Weight, Typical 840 g
1.85 lb
V Isolation @ 25C V
V
V
& V
DRM
RRM
1600 V
RSM
T(RMS)
250 A
8800 A
4685 A
4040 A
reapplied I
RRM
reapplied I
RRM
reapplied I
RRM
T(AV) /IF(AV)
TSM/IFSM
TSM/IFSM
TSM/IFSM
di/dt 800 A/µs
DRM (Rated), ITM
=π I
T(AV)
,
< 0.5µs, tp > 6µs
3 W
G(AV)
4 A
GFM
10 V
GFM
5 V
GRM
-40 to +150 °C
stg
2500 V
rms
up to 1600 V
393
in.-Lb.
5
Nm
in.-Lb.
12
Nm
A
Revision Date: 12/04/2002
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