Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
500 Amperes / 1800 Volts
Revision Date: 5/3/2002
LD431850
Ordering Information
:
Select the complete eight-digit
module part number from the table
below.
Example: LD431850 is a 1800V,
500 Ampere Dual SCR Isolated
POW-R-BLOK
TM
Module.
Type
Voltage
Volts
(x100)
Current
Amperes
(x10)
LD43
18
50
LD431850
Dual SCR
POW-R-BLOK
TM
Module
500 Amperes / 1800 Volts
LD43 Outline Dimensions
Dimension
Inches Millimeters
A 5.91 150.0
B 4.88 124.0
C 4.41 112.0
D 2.36 60.0
E 2.05 52.0
F 1.97 50.0
G 1.89 48.0
H 1.73 44.0
J 1.22 31.0
K 1.10 28.0
L 1.00 25.4
M 0.69 17.5
N 0.39 10.0
P M10
Metric M10
Q
0.26 Dia.
6.5 Dia.
R 0.24 6.0
S 0.12 3.0
T
.110 x .032
2.5 x 0.8
Note: Dimensions are for reference only.
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 Isolator
T Compression Bonded Elements
T Metal Baseplate
T Low Thermal Impedance
for Improved Current Capability
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
J
F
C
B
A
R
L
H
Q - DIA. (4 TYP.)
P - M10 THD (3 TYP.)
K
D
G
M
N
S
E
T - (4 TYP.)
1
2
3
OUTLINE DRAWING
4
5
6
7
CONNECTION DIAGRAM
1
2
3
4
5
6
7
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
500 Amperes / 1800 Volts
Revision Date: 5/3/2002
LD431850
Absolute Maximum Ratings
Characteristics Conditions
Symbol
Units
Repetitive Peak Forward and Reverse Blocking
Voltage
V
DRM
& V
RRM
1800
V
Non-Repetitive Peak Blocking Voltage
(t < 5 msec)
V
RSM
1900 V
RMS Forward Current
I
T(RMS)
900 A
Average Forward Current
180 Conduction, T
C
=84C
180 Conduction, T
C
=80C
I
T(AV)
I
T(AV)
500
540
A
A
Peak One Cycle Surge Current, Non-Repetitive
60 Hz, 100% V
RRM
reapplied
50 Hz, 100% V
RRM
reapplied
I
TSM
I
TSM
17,000
16,300
A
A
Peak Three Cycle Surge Current, Non-Repetitive
60 Hz, 100%V
RRM
reapplied
I
TSM
12,250 A
Peak Ten Cycle Surge Current, Non-Repetitive
60 Hz, 100% V
RRM
reapplied
I
TSM
10,500
A
I
2
t for Fusing for One Cycle
8.3 milliseconds
10 milliseconds
I
2
t
I
2
t
1.20 x 10
6
1.33 x 10
6
A
2
sec
A
2
sec
Maximum Rate-of-Rise of On-State Current,
(Repetitive)
Per JEDEC Standard 397 5.2.2.6
di/dt
200
A/s
Operating Temperature
T
J
-40
to
+130 C
Storage Temperature
T
stg
-40
to
+150 C
Max. Mounting Torque, M6 Mounting Screw
55
6
in. Lb.
Nm
Max. Mounting Torque, M10 Terminal Screw
110
12
in. Lb.
Nm
Module Weight, Typical
1500
g
3.30
lb
V Isolation @ 25C
V
rms
3000 V
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
500 Amperes / 1800 Volts
Revision Date: 5/3/2002
LD431850
Electrical Characteristics, T
J
=25C unless otherwise specified
Characteristics Symbol
Test
Conditions
Min.
Max.
Units
Repetitive Peak Forward Leakage Current
I
DRM
Up to 1800V, T
J
=130C
80
mA
Repetitive Peak Reverse Leakage Current
I
RRM
Up to 1800V, T
J
=130C
80
mA
Peak On-State Voltage
V
FM
V
FM
I
TM
=1500A, T
J
=25C
I
TM
=1500A, T
J
=130C
1.45
1.40
V
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)
0.916
0.28
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
1.01
0.25
V
m
V
TM
Coefficients, Full Range
T
J
= 130C, I = 10A to 6kA
V
TM
= A+ B Ln I +C I + D Sqrt I
A =
B =
C =
D =
0.9032
-5.98E-03
2.23E-04
4.05E-03
Minimum dV/dt
dV/dt
Exponential to V
DRM
T
j
=130C, Gate Open
1000 Typ.
V/s
Gate Trigger Current
I
GT
T
j
=25C, V
D
=12V
200
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
0.25
Volts
Peak Forward Gate Current
I
GTM
4.0
Amp
Peak Reverse Gate Voltage
V
GRM
5
Volts
Thermal Characteristics
Characteristics Symbol
Max.
Units
Thermal Resistance, Junction to Case
R
J-C
Per Module, both conducting
Per Junction, both conducting
0.0325
0.0650
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
= 8.03E-04
K
2
= 1.03E-02
K
3
= 1.64E-02
K
4
= 3.75E-02
1
= 3.39E-04
2
= 3.15E-03
3
= 0.106
4
= 2.066
Thermal Resistance, Case to Sink Lubricated
R
C-S
Per Module
0.01
C/W
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
500 Amperes / 1800 Volts
Revision Date: 5/3/2002
LD431850
Typical 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 - Itm - Amperes
O
n
-
S
ta
te
V
o
l
t
a
g
e
-
V
t
m
-
V
o
l
t
s
(Tj = 125C)
Maximum Transient Thermal Impedance
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.001
0.01
0.1
1
10
100
Time - t - Seconds
Th
erm
a
l
I
m
pe
da
nc
e - R
j
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
400
500
600
700
0
50
100
150
200
250
300
350
400
450
500
Average On-State Current - It(av) - Amperes
Max
.
P
o
wer D
i
ssi
pat
i
on P
e
r
S
C
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
100
200
300
400
500
600
Average On-State Current - It(av) - Amperes
M
ax.
C
a
s
e
T
e
m
p
era
t
u
r
e
-
T
c
a
se
-
C
_
(Sinusoidal 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
600
700
800
900
0
100
200
300
400
500
600
700
800
900
Average On-State Current - It(av) - Amperes
M
a
x
.
P
o
w
e
r
D
i
s
s
i
p
a
t
i
o
n
P
e
r
S
C
R
- W
a
tts
_
(Rectangular 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
100
200
300
400
500
600
700
800
900
Average On-State Current - It(av) - Amperes
M
ax.
Case T
e
m
p
er
atu
r
e - T
case
-
C_
(Rectangular Waveform)
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