Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
250 Amperes / 2000 Volts
Revision Date: 11/1/2001
ND432025
CONNECTION DIAGRAM
A
K2
G2
G1
K1
K
AK
SCR 1
SCR 2
M
K
G
A
B
N
R
V
T - M8 THD. (3 TYP.)
U - DIA. (4 TYP.)
OUTLINE DRAWING
A
K
AK
J
C
S
P
Q
F
H
W
L
D E
G2
K2
W
G1
K1
ND43 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.
ND432025
Dual SCR Isolated
POW-R-BLOK
TM
Module
250 Amperes / 2000 Volts
Ordering Information
:
Select the complete eight digit
module part number from the table
below.
Example: ND432025 is a 2000Volt,
250 Ampere Dual SCR Isolated
POW-R-BLOK
TM
Module
Type
Voltage
Volts
(x100)
Current
Amperes
(x 10)
ND43 20
25
Description:
Powerex Dual SCR 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
TM
has been tested and
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
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
250 Amperes / 2000 Volts
Revision Date: 11/1/2001
ND432025
Absolute Maximum Ratings
Characteristics Conditions
Symbol
Units
Repetitive Peak Forward and Reverse Blocking
Voltage
V
DRM
& V
RRM
up to 2000
V
Non-Repetitive Peak Reverse Blocking Voltage
(t < 5 msec)
V
RSM
2100 V
RMS Forward Current
180 Conduction, T
C
=83C I
T(RMS)
393
A
Average Forward Current
180 Conduction, T
C
=83C I
T(AV)
250 A
Peak One Cycle Surge Current, Non-Repetitive
60 Hz, 100% V
RRM
reapplied,Tj=130C
60 Hz, No V
RRM
reapplied,Tj=130C
60 Hz, 100% V
RRM
reapplied,Tj=25C
60 Hz, No V
RRM
reapplied,Tj=25C
I
TSM
I
TSM
I
TSM
I
TSM
8800
10,420
10,120
11,900
A
A
A
A
Peak Three Cycle Surge Current, Non-Repetitive 60 Hz, 100% V
RRM
reapplied,Tj=130C
I
TSM
4400 A
Peak Ten Cycle Surge Current, Non-Repetitive
60 Hz, 100% V
RRM
reapplied,Tj=130C
I
TSM
3925
A
I
2
t for Fusing for One Cycle, 8.3 milliseconds
60 Hz, 100% V
RRM
reapplied,Tj=130C
60 Hz, 100% V
RRM
reapplied,Tj=25C
I
2
t
I
2
t
320,000
426,720
A
2
sec
A
2
sec
Maximum Rate-of-Rise of On-State Current,
(Non-Repetitive)
T
j
=25C, I
G
=500mA,
V
D
=0.67 V
DRM (Rated),
I
TM
=
I
T(AV)
,
T
r
< 0.5
s
, t
p
> 6s
di/dt 800 A/s
Peak Gate Power Dissipation
P
GM
16 W
Average Gate Power Dissipation
P
G(AV)
3 W
Peak Forward Gate Current
I
GFM
4 A
Peak Forward Gate Voltage
V
GFM
10 V
Peak Reverse Gate Voltage
V
GRM
5 V
Operating Temperature
T
J
-40
to
+130 C
Storage Temperature
T
stg
-40
to
+150 C
Max. Mounting Torque, M6 Mounting Screw
45
5
in.-Lb.
Nm
Max. Mounting Torque, M8 Terminal Screw
110
12
in.-Lb.
Nm
Module Weight, Typical
840
G
1.85
lb
V Isolation @ 25C
V
rms
2500 V
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
250 Amperes / 2000 Volts
Revision Date: 11/1/2001
ND432025
Electrical Characteristics, T
J
=25C unless otherwise specified
Characteristics Symbol
Test
Conditions
Min.
Max.
Units
Repetitive Peak Forward Leakage Current
I
DRM
Up to 2000V, T
J
=130C
50
mA
Repetitive Peak Reverse Leakage Current
I
RRM
Up to 2000V, T
J
=130C
50
mA
Peak On-State Voltage
V
FM
I
TM
=625A
1.40
V
Threshold Voltage, Low-level
Slope Resistance, Low-level
V
(TO)1
r
T1
T
J
= 130C, I = 15%I
T(AV)
to I
T(AV)
0.813
0.810
V
m
Threshold Voltage, High-level
Slope Resistance, High-level
V
(TO)2
r
T2
T
J
= 130C, I = I
T(AV)
to I
TSM
0.947
0.641
V
m
V
TM
Coefficients, Full Range
T
J
= 130C, I = 15%I
T(AV)
to I
TSM
V
TM
= A+ B Ln I +C I + D Sqrt I
A =
B =
C =
D =
0.7324
9.80 E-3
5.83 E-4
6.02 E-3
Minimum dV/dt
dV/dt
Exponential to 2/3 V
DRM
T
j
=130C, Gate Open
500
V/s
Turn-On Time (Typical)
t
on
I
TM
= 100A, V
D
= 100V
7
(Typical)
s
Turn-Off Time (Typical)
t
off
T
J
= 130C, I
T
= 250A
Re-Applied dV/dt = 20V/s
Linear to 0.8 V
DRM
150 (Typical)
s
Gate Trigger Current
I
GT
T
j
=25C, V
D
=12V
150
mA
Gate Trigger Voltage
V
GT
T
j
=25C, V
D
=12V
3.0
Volts
Non-Triggering Gate Voltage
V
GDM
T
j
=130C, V
D
= V
DRM
0.15
Volts
Thermal Characteristics
Characteristics Symbol
Max.
Units
Thermal Resistance, Junction to Case
R
J-C
Per Module, both conducting
Per Junction both conducting
0.07
0.14
C/W
C/W
Thermal Impedance Coefficients
Z
J-C
Z
J-C
= K
1
(1-exp(-t/
1
))
+ K
2
(1-exp(-t/
2
))
+ K
3
(1-exp(-t/
3
))
+ K
4
(1-exp(-t/
4
))
K
1
= 5.27E-3
K
2
= 1.17E-2
K
3
= 5.26E-2
K
4
= 6.97E-2
1
= 1.69E-4
2
= 2.07E-2
3
= 2.37E-1
4
= 2.46
Thermal Resistance, Case to Sink Lubricated
R
C-S
Per Module
0.03
C/W
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
250 Amperes / 2000 Volts
Revision Date: 11/1/2001
ND432025
Maximum On-State Forward Voltage Drop
0
0.5
1
1.5
2
2.5
3
3.5
4
10
100
1000
10000
Instantaneous On-State Current - It - Amperes
O
n
-S
ta
te
V
o
lta
g
e
-
V
t
m
-
V
o
lts
(Tj = 130C)
Maximum Transient Thermal Impedance
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.001
0.01
0.1
1
10
100
Time - t - Seconds
T
h
er
mal
I
m
pedance - Rj
c
-
C
/
W
(Junction To Case)
0
180
360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
15
30
60
90
120
180
0
100
200
300
0
50
100
150
200
250
Average On-State Current - It(av) - Amperes
M
a
x
.
Po
w
e
r
D
i
s
s
i
p
a
t
i
o
n
Pe
r
SC
R
- W
a
t
t
s
_
(Sinusoidal Waveform)
0
180
360
CONDUCTION ANGLE
Maximum Allowable Case Temperature
120
90
60
30
15
180
80
90
100
110
120
130
0
20
40
60
80
100
120
140
160
180
200
220
240
260
Average On-State Current - It(av) - Amperes
M
ax.
C
ase T
e
m
p
er
at
u
r
e - T
c
ase -C
_
(Sinusoidal Waveform)
0
180
360
CONDUCTION ANGLE
Maximum Allowable Case Temperature
270
180
120
90
60
30
15
360
60
70
80
90
100
110
120
130
0
50
100
150
200
250
300
350
400
Average On-State Current - It(av) - Amperes
M
ax.
C
a
s
e
T
e
m
p
er
at
u
r
e -
T
case -
C
_
(Rectangular Waveform)
0
180
360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
360
15
270
180
120
30
60
90
0
100
200
300
400
500
0
50
100
150
200
250
300
350
400
Average On-State Current - It(av) - Amperes
Ma
x
.
P
o
w
e
r
D
i
s
s
i
p
a
ti
o
n
Pe
r
SCR
- W
a
tts
_
(Rectangular Waveform)
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