Dimensions
Inches
Millimeters
H
0.125 0.008
3.2 0.2
J
0.102 0.016
2.6 0.4
K
0.10
2.5
L
0.051
1.3
M
0.039
1.0
N
0.031
0.8
P
0.020
0.5
Dimensions
Inches
Millimeters
A
0.63 Max.
16 Max.
B
0.49 Min.
12.5 Min.
C
0.41
10.5
D
0.28
7
E
0.18
4.5
F
0.15 Max.
3.8 Max.
G
0.142 0.008 Dia. 3.6 0.2 Dia.
Description:
The Powerex CR8AM Lead-mount
Phase Control SCRs are planar
passivated thyristors for use in low
power control and rectification.
These devices are molded silicone
plastic types.
Features:
Easy Application for Printed
Circuits
Glass Passivated
High Surge Current
Applications:
Heater Control
Motor Control
Switching Mode Power Supply
Regulator for Motorcycles
Ordering Information:
Example: Select the complete six
or seven digit part number you
desire from the table - i.e.
CR8AM-8 is a 400 Volt, 8 Ampere
Phase Control SCR.
V
DRM
/V
RRM
Type
Volts Code
CR8AM
400
-8
600
-12
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272
Lead-mount,
Phase Control SCR
8 Amperes/400-600 Volts
CR8AM
Outline Drawing (Conforms to TO-220)
P-45
G
D
A
H
L
E
K
M
N
J
J
P
B
F
E
C
CATHODE
ANODE
GATE
ANODE
CONNECTION DIAGRAM
OUTLINE DRAWING
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272
CR8AM
Lead-mount, Phase Control SCR
8 Amperes/400-600 Volts
P-46
Absolute Maximum Ratings,
T
a
= 25 C unless otherwise specified
Ratings
Symbol
CR8AM-8
CR8AM-12
Units
Repetitive Peak Off-state Voltage
V
DRM
400
600
Volts
Repetitive Peak Reverse Voltage
V
RRM
400
600
Volts
Non-repetitive Peak Reverse Voltage
V
RSM
500
720
Volts
DC Reverse Voltage
V
R(DC)
320
480
Volts
DC Forward Voltage
V
D(DC)
320
480
Volts
RMS On-state Current
I
T(RMS)
12.6
12.6
Amperes
Average On-state Current (Nominal, See Graphs) T
C
= 88C
I
T(avg)
8
8
Amperes
Non-repetitive Peak Surge, On-state Current One Cycle (60 Hz)
I
TSM
120
120
Amperes
I
2
t for Fusing, t = 8.3 msec
I
2
t
60
60
A
2
sec
Peak Gate Power Dissipation
P
GM
5
5
Watts
Average Gate Power Dissipation
P
G(avg)
0.5
0.5
Watts
Peak Forward Gate Current
I
FGM
2
2
Amperes
Peak Forward Gate Voltage
V
FGM
6
6
Volts
Peak Reverse Gate Voltage
V
RGM
10
10
Volts
Storage Temperature
T
stg
-40 to 125
-40 to 125
C
Operating Junction Temperature
T
j
-40 to 125
-40 to 125
C
Weight
2.3
2.3
Grams
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272
CR8AM
Lead-mount, Phase Control SCR
8 Amperes/400-600 Volts
P-47
Electrical and Thermal Characteristics,
T
j
= 25 C unless otherwise specified
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Voltage Blocking State
Peak Forward Leakage
I
DRM
T
j
= 125C, V
D
= V
DRM
2
mA
Peak Reverse Leakage
I
RRM
T
j
= 125C, V
R
= V
RRM
2
mA
Current Conducting State
Peak On-state Voltage
V
TM
T
c
= 25C, I
TM
= 25A
1.4
Volts
DC Holding Current
I
H
V
D
= 12V, T
j
= 25C
15
mA
Thermal Resistance
Junction-to-case
R
th(j-c)
3
C/W
Gate Parameters
Gate Current to Trigger
I
GT
V
D
= 6V, R
L
= 6 , T
j
= 25C
15
mA
Gate Voltage to Trigger
V
GT
V
D
= 6V, R
L
= 6 , T
j
= 25C
1.0
Volts
Non-triggering Gate Voltage
V
GD
V
D
= 1/2V
DRM
, T
j
= 125C
0.2
Volts
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272
CR8AM
Lead-mount, Phase Control SCR
8 Amperes/400-600 Volts
0
5
4
3
2
1
MAXIMUM ON-STATE
CHARACTERISTICS
INSTANTANEOUS ON-STATE
CURRENT, I
T
, (AMPERES)
INSTANTANEOUS ON-STATE VOLTAGE, V
T
, (VOLTS)
10
0
10
1
10
2
10
3
T
j
= 25
o
C
TRANSIENT THERMAL
IMPEDANCE CHARACTERISTICS
(JUNCTION-TO-CASE)
TIME, t, (S)
TRANSIENT THERMAL IMPEDANCE, Z
th(j-c)
, (
C/WATT)
10
-2
10
-1
10
0
10
1
10
2
10
-3
10
-2
10
-1
10
0
10
1
0
40
80
120
160
200
MAXIMUM SURGE CURRENT
FOLLOWING RATED LOAD CONDITIONS
CYCLES AT 60 Hz
MAXIMUM PEAK SURGE CURRENT, I
TSM
, (AMPERES)
10
0
10
1
10
2
0
4
8
12
16
20
24
28
32
MAXIMUM ON-STATE
POWER DISSIPATION
(SINGLE-PHASE FULL WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM POWER DISSIPATION, (WATTS)
0
= 30
60
120
90
RESISTIVE LOADS
4
8
12
16
360
180
10
-1
10
0
10
1
10
2
GATE
CHARACTERISTICS
GATE CURRENT, I
G
, (mA)
GATE VOLTAGE, V
G
, (VOLTS)
10
0
10
1
10
2
10
3
10
4
V
GD
= 0.2V
V
FGM
= 6V
I
GT
= 15mA
I
FGM
= 2A
P
GM
= 5W
P
G(avg)
= 0.5W
V
GT
= 1V
0
20
40
60
80
100
120
140
200
160
180
MAXIMUM
ALLOWABLE CASE TEMPERATURE
(SINGLE-PHASE FULL WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM ALLOWABLE CASE TEMPERATURE, T
C
, (
C)
0
4
8
12
16
20
= 30
120
60
180
90
RESISTIVE
LOADS
360
0
20
40
60
80
100
120
140
160
180
200
MAXIMUM
ALLOWABLE CASE TEMPERATURE
(SINGLE-PHASE HALF WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM ALLOWABLE CASE TEMPERATURE, T
C
, (
C)
0
2
4
6
10
8
= 30
60
90
180
RESISTIVE,
INDUCTIVE LOADS
120
360
0
4
8
12
16
20
24
28
32
MAXIMUM ON-STATE
POWER DISSIPATION
(SINGLE-PHASE HALF WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM POWER DISSIPATION, (WATTS)
0
4
8
12
16
= 30
60
90
120
180
360
RESISTIVE,
INDUCTIVE LOADS
0
20
40
60
80
100
120
140
200
160
180
MAXIMUM
ON-STATE POWER DISSIPATION
(RECTANGULAR WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM POWER DISSIPATION, (WATTS)
0
= 30
60
90
120
180
270
DC
RESISTIVE,
INDUCTIVE LOADS
4
8
12
16
20
360
P-48
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (412) 925-7272
CR8AM
Lead-mount, Phase Control SCR
8 Amperes/400-600 Volts
GATE TRIGGER CURRENT
VS. JUNCTION TEMPERATURE
(TYPICAL)
JUNCTION TEMPERATURE, T
j
, (
C)
GATE TRIGGER CURRENT, (t
C)
GATE TRIGGER CURRENT, (25
C)
x 100%
-40
10
0
10
1
10
2
10
3
0
40
80
120
160
GATE TRIGGER VOLTAGE
VS. JUNCTION TEMPERATURE
(TYPICAL)
JUNCTION TEMPERATURE, T
j
, (
C)
GATE TRIGGER VOLTAGE, (t
C)
GATE TRIGGER VOLTAGE, (25
C)
x 100%
-40
0
40
80
120
0
0.2
0.4
0.6
0.8
1.0
TYPICAL EXAMPLE
DISTRIBUTION
HOLDING CURRENT
VS. JUNCTION TEMPERATURE
(TYPICAL)
JUNCTION TEMPERATURE, T
j
, (
C)
-40
10
0
10
1
10
2
10
3
0
40
80
120
160
HOLDING CURRENT, I
H
, (mA)
V
D
= 12V
R
GK
= 1k
TYPICAL EXAMPLE
DISTRIBUTION
GATE TRIGGER CURRENT, IGT, (mA)
0
2
4
6
8
10 12 14 16 18 20
T
a
= 25
C
0
5
10
15
20
25
30
35
40
45
50
HOLDING CURRENT
VS. GATE TRIGGER CURRENT
HOLDING CURRENT,
I
H
, (mA)
BREAKOVER VOLTAGE
VS. JUNCTION TEMPERATURE
(TYPICAL)
JUNCTION TEMPERATURE, T
j
, (
C)
-40
0
40
80
120
160
BREAKOVER VOLTAGE, (t
C)
BREAKOVER VOLTAGE, (25
C)
x 100%
R
GK
= 1k
0
40
80
120
160
0
40
80
120
160
BREAKOVER VOLTAGE VS.
RATE OF RISE OF OFF-STATE VOLTAGE
(TYPICAL)
RATE OF RISE OF
OFF-STATE VOLTAGE, dv/dt, (V/ s)
10
1
10
2
10
3
10
4
I
GT
= 7.2mA
EXPONENTIAL WAVE
T
j
= 125
C
R
GK
= 1k
BREAKOVER VOLTAGE, (dv/dt = x V/
s)
BREAKOVER VOLTAGE, (dv/dt = 1V/
s)
x 100%
4.7mA
REPETITIVE PEAK REVERSE VOLTAGE
VS. JUNCTION TEMPERATURE
(TYPICAL)
JUNCTION TEMPERATURE, T
j
, (
C)
-40
0
40
80
120
160
REPETITIVE PEAK REVERSE VOLTAGE, (t
C)
REPETITIVE PEAK REVERSE VOLTAGE, (25
C)
x 100%
0
40
80
120
160
GATE TRIGGER CURRENT
VS. GATE CURRENT PULSE WIDTH
(TYPICAL)
GATE CURRENT PULSE WIDTH, t
w
, ( s)
GATE TRIGGER CURRENT, (t
w
)
GATE TRIGGER CURRENT, (DC)
x 100%
10
2
10
1
10
3
10
4
10
-1
10
0
10
1
10
2
T
j
= 25
C
R
GK
= 1k
t
w
0.1 s
0
4
8
12
16
20
24
28
32
MAXIMUM
ON-STATE POWER DISSIPATION
(RECTANGULAR WAVEFORM)
AVERAGE ON-STATE CURRENT, I
T(avg)
, (AMPERES)
MAXIMUM POWER DISSIPATION, (WATTS)
0
= 30
60
90
4
8
12
16
360
120
180
270
DC
RESISTIVE,
INDUCTIVE LOADS
P-49
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