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CM4308A2

P1-P3P4-P4
Dimension Inches Millimeters
A 3.681 Max. 93.5 Max.
B 3.150 80
C 1.181 Max. 30 Max.
D 1.024 Max. 26 Max.
E 0.827 21
F 0.787 20
G 0.689 17.5
H 0.492 12.5
J 0.354 9
K 0.256 6.5
L 0.256 Dia. Dia. 6.5
M M5 Metric M5
Description:
Powerex Dual SCR
POW-R-BLOK™ Modules are
designed for use in applications
requiring phase control and
isolated packaging. The modules
are isolated for easy mounting
with other components on
common heatsinks.
Features:
M Isolated Mounting
M Glass Passivated Chips
M Metal Baseplate
M Low Thermal Impedance
Applications:
M Battery Supplies
M Bridge Circuits
M AC and DC Motor Control
M Tap Changers
M Lighting Control
Ordering Information:
Select the complete eight digit
module part number you desire
from the table below.
Example: CM4308A2 is an
800 Volt, 25 Ampere Dual SCR
POW-R-BLOK™ Module.
Voltage Current Rating
Type Volts (x100) Amperes (25)
CM43 08 A2
S-9
Powerex, Inc., 200 Hillis Street,Youngwood, Pennsylvania 15697-1800 (724) 925-7272
Dual SCR
POW-R-BLOK™ Modules
25 Amperes/800 Volts
CM4308A2
Outline Drawing
CM4308A2
Dual SCR POW-R-BLOK™ Modules
25 Amperes/800 Volts
J
E
C
K
G
F
F
D
H
A
B
M - M5 THD
(3 TYP.)
A1K2
A2
G1
G2
K1
K1
K1 G1
K2 G2
A2K1A1K2
L - DIA.
(2 TYP.)
.110 TAB
K2
S-10
Powerex, Inc., 200 Hillis Street,Youngwood, Pennsylvania 15697-1800 (724) 925-7272
CM4308A2
Dual SCR POW-R-BLOK™ Modules
25 Amperes/800 Volts
Absolute Maximum Ratings
Characteristics Symbol CM4308A2 Units
Peak Forward Blocking Voltage V
DRM
800 Volts
Transient Peak Forward Blocking Voltage (Non-Repetitive), t < 5ms V
DSM
960 Volts
DC Forward Blocking Voltage V
D(DC)
640 Volts
Peak Reverse Blocking Voltage V
RRM
800 Volts
Transient Peak Reverse Blocking Voltage (Non-Repetitive), t < 5ms V
RSM
960 Volts
DC Reverse Blocking Voltage V
R(DC)
640 Volts
RMS On-State Current I
T(RMS)
39 Amperes
Average On-State Current, T
C
= 93°C I
T(AV)
25 Amperes
Peak One-Cycle Surge (Non-Repetitive) On-State Current (60Hz) I
TSM
490 Amperes
Peak One-Cycle Surge (Non-Repetitive) On-State Current (50Hz) I
TSM
445 Amperes
I
2
t (for Fusing), 8.3 milliseconds I
2
t 1000 A
2
sec
Critical Rate-of-Rise of On-State Current* di/dt 100 Amperes/ms
Peak Gate Power Dissipation P
GM
5.0 Watts
Average Gate Power Dissipation P
G(AV)
0.5 Watts
Peak Forward Gate Voltage V
GFM
10 Volts
Peak Reverse Gate Voltage V
GRM
5.0 Volts
Peak Forward Gate Current I
GFM
2.0 Amperes
Storage Temperature T
STG
-40 to 125 °C
Operating Temperature T
j
-40 to 125 °C
Maximum Mounting Torque M6 Mounting Screw — 26 in.-lb.
Maximum Mounting Torque M5 Terminal Screw — 17 in.-lb.
Module Weight (Typical) — 160 Grams
V Isolation V
RMS
2000 Volts
*T
j
= 125°C, I
G
= 0.5A, V
D
= 1/2 V
DRM
Electrical and Thermal Characteristics, T
j
= 25°C unless otherwise specified
Characteristics Symbol Test Conditions CM4308A2 Units
Blocking State Maximums
Forward Leakage Current, Peak I
DRM
T
j
= 125°C, V
DRM
= Rated 4.0 mA
Reverse Leakage Current, Peak I
RRM
T
j
= 125°C, V
RRM
= Rated 4.0 mA
Conducting State Maximums
Peak On-State Voltage V
TM
I
TM
= 75A 1.5 Volts
Switching Minimums
Critical Rate-of-Rise of Off-State Voltage dv/dt T
j
= 125°C, V
D
= 2/3 V
DRM
500 Volts/ms
Thermal Maximums
Thermal Resistance, Junction-to-Case R
u(J-C)
Per Module 0.8 °C/Watt
Thermal Resistance, Case-to-Sink (Lubricated) R
u(C-S)
Per Module 0.2 °C/Watt
Gate Parameters Maximums
Gate Current-to-Trigger I
GT
V
D
= 6V, R
L
= 2Ω 50 mA
Gate Voltage-to-Trigger V
GT
V
D
= 6V, R
L
= 2Ω 3.0 Volts
Non-Triggering Gate Voltage V
GDM
T
j
= 125°C, V
D
= 1/2 V
DRM
0.25 Volts
S-11
Powerex, Inc., 200 Hillis Street,Youngwood, Pennsylvania 15697-1800 (724) 925-7272
CM4308A2
Dual SCR POW-R-BLOK™ Modules
25 Amperes/800 Volts
INSTANTANEOUS ON-STATE CURRENT, I
TM
,
(AMPERES)
MAXIMUM
ON-STATE CHARACTERISTICS
0.6
10
0
1.0
1.4
1.8
2.2
2.6
10
1
10
2
10
3
T
j
= 125
o
C
INSTANTANEOUS ON-STATE VOLTAGE, V
TM
, (VOLTS)
CYCLES AT 60 HZ
MAXIMUM PEAK SURGE (NON-REPETITIVE)
CURRENT, I
TSM
, (AMPERES)
MAXIMUM ALLOWABLE PEAK SURGE
(NON-REPETITIVE) CURRENT
0
10
1
10
2
10
0
50
100
150
200
250
300
350
400
450
500
MAXIMUM ALLOWABLE CASE TEMPERATURE
(SINUSOIDAL WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(AV)
,
(AMPERES)
MAXIMUM ALLOWABLE CASE TEMPERATURE, T
C
, (
o
C)
05 2510 15 20
80
90
100
110
120
130
u = 30
o
60
o
90
o
360
o
u
RESISTIVE,
INDUCTIVE
LOAD PER
SINGLE
ELEMENT
180
o
120
o
MAXIMUM ON-STATE POWER DISSIPATION
(SINUSOIDAL WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(AV)
,
(AMPERES)
MAXIMUM POWER DISSIPATION, P
AV(MAX)
, (WATTS)
05 2510 15 20
0
40
360
o
u
RESISTIVE,
INDUCTIVE
LOAD PER
SINGLE
ELEMENT
5
10
15
20
25
30
35
u = 30
o
120
o
180
o
60
o
90
o
50
MAXIMUM ALLOWABLE CASE TEMPERATURE
(RECTANGULAR WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(AV)
,
(AMPERES)
MAXIMUM ALLOWABLE CASE TEMPERATURE, T
C
, (
o
C)
05 2510 15 20 30 35 40
60
70
80
90
100
110
120
130
360
o
u
RESISTIVE, INDUCTIVE
LOAD PER SINGLE
ELEMENT
u = 30
o
60
o
90
o
120
o
180
o
270
o
DC
0
MAXIMUM AVERAGE ON-STATE POWER
DISSIPATION (RECTANGULAR WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(AV)
,
(AMPERES)
MAXIMUM POWER DISSIPATION, P
AV(MAX)
, (WATTS)
05 2510 15 20 30 35 40
360
o
u
RESISTIVE, INDUCTIVE LOAD
PER SINGLE ELEMENT
10
20
30
40
50
120
o
180
o
270
o
u = 30
o
60
o
90
o
DC
TIME, t, (SECONDS)
TRANSIENT THERMAL IMPEDANCE
CHARACTERISTICS (JUNCTION-TO-CASE)
0
10
-3
0.2
0.4
0.6
0.8
1.0
10
-2
10
-1
10
0
TRANSIENT THERMAL IMPEDANCE, Z
u(J-C)
(t), (
o
C/WATT)
10
0
10
1
0.9
0.7
0.5
0.3
0.1
INSTANTANEOUS GATE CURRENT, I
G
, (mA)
TRIGGERING
CHARACTERISTICS
10
1
10
2
10
3
10
4
INSTANTANEOUS GATE VOLTAGE, V
G
, (VOLTS)
10
-1
10
0
10
1
10
2
V
GFM
= 10V
V
GT
= 3.0V
P
GM
= 5.0W
P
G(AV)
=
0.50W
I
GFM
=
2.0A
I
GT
= 50mA
T
j
= 25
o
C
V
GDM
= 0.25V
90
MAXIMUM ALLOWABLE CASE TEMPERATURE
(REVERSE PARALLEL CONNECTION)
MAXIMUM ALLOWABLE CASE TEMPERATURE, T
C
, (
o
C)
010 5020 30 40 60 70 80
95
100
105
110
115
120
125
130
85
80
360
o
u
u
RESISTIVE,
INDUCTIVE LOAD
RMS ON-STATE CURRENT, I
(RMS)
, (AMPERES)
NOTE: THE CURVES INDICATE THE
RELATIONSHIP BETWEEN THE CASE
TEMPERATURE AND THE RMS
ON-STATE CURRENT FOR EACH
MODULE.
u = 30
o
,
60
o
,
90
o
120
o
,
180
o
P1-P3P4-P4

CM4308A2

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SCR MOD DUAL 800V 25A
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