PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
AC Switch SCR Isolated Module
1330 Amps RMS, Up to 2400 Volts
Description:
Powerex AC Switch 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.
Features:
T
Electrically Isolated Heatsinking
T
Compression Bonded Elements
T
Metal Baseplate
T
Low Thermal Impedance
for Improved Current Capability
Benefits:
T
No Additional Insulation
Components Required
T
Easy Installation
T
No Clamping Components
Required
T
Reduce Engineering Time
Applications:
T
Transfer Switches
T
AC Welders
T
Motor Soft Starters
08/20/2002
PA43__06
Ordering Information
:
Select the complete eight-digit
module part number from the table
below.
Example: PA432406 is a 2400 Volt,
600A Average/SCR (1330 Ampere
RMS/Switch) SCR AC Switch
Isolated POW-R-BLOK
TM
Module
Type
Voltage
Volts (x100)
Current
Amperes
(x100)
PA43
16
18
20
22
24
06
Average
Current
Per SCR
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
AC Switch SCR Isolated Module
1330 Amps RMS, Up to 2400 Volts
Absolute Maximum Ratings
Characteristics Conditions
Symbol
Units
Repetitive Peak Forward and Reverse Blocking
Voltage
V
DRM
& V
RRM
Up to 2400
V
Non-Repetitive Peak Blocking Voltage
(t < 5 msec)
V
RSM
V
RRM
+ 100
V
RMS Current
(AC Switch, 180
o
Conduction)
180
Conduction, T
C
=66
C
180
Conduction, T
C
=71
C
180
Conduction, T
C
=76
C
180
Conduction, T
C
=81
C
180
Conduction, T
C
=86
C
180
Conduction, T
C
=90
C
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
1665
1550
1440
1330
1220
1110
A
A
A
A
A
A
Average Forward Current Per SCR
(180
o
Conduction)
180
Conduction, T
C
=66
C
180
Conduction, T
C
=71
C
180
Conduction, T
C
=76
C
180
Conduction, T
C
=81
C
180
Conduction, T
C
=86
C
180
Conduction, T
C
=90
C
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
I
T(RMS)
750
700
650
600
550
500
A
A
A
A
A
A
Peak One Cycle Surge Current, Non-Repetitive
Tj = 25C, Vr = 0
60 Hz
50 Hz
I
TSM
I
TSM
50,890
46,400
A
A
Peak One Cycle Surge Current, Non-Repetitive
Tj = 25C, Vr = Vrrm
60 Hz
50 Hz
I
TSM
I
TSM
33,925
30,935
A
A
Peak One Cycle Surge Current, Non-Repetitive
Tj = 125C, Vr = 0
60 Hz
50 Hz
I
TSM
I
TSM
44,250
40,350
A
A
Peak One Cycle Surge Current, Non-Repetitive
Tj = 125C, Vr = Vrrm
60 Hz
50 Hz
I
TSM
I
TSM
29,500
26,900
A
A
Peak Three Cycle Surge Current, Non-Repetitive
60 Hz, Tj = 125C, Vr = Vrrm
I
TSM
23,900 A
Peak Ten Cycle Surge Current, Non-Repetitive
60 Hz, Tj = 125C, Vr = Vrrm
I
TSM
18,615
A
I
2
t for Fusing for One Cycle
Tj = 125C, Vr = Vrrm
8.3 milliseconds
10 milliseconds
I
2
t
I
2
t
3.63 x 10
6
3.62 x 10
6
A
2
sec
A
2
sec
Maximum Rate-of-Rise of On-State Current,
(Non-Repetitive)
Per JEDEC Standard 397 5.2.2.6
di/dt
400
A/
s
Maximum Rate-of-Rise of On-State Current,
(Repetitive)
Per JEDEC Standard 397 5.2.2.6
di/dt
150
A/
s
Operating Temperature
T
J
-40
to
+125
C
Storage Temperature
T
stg
-40
to
+150
C
Max. Mounting Torque, M6 Mounting Screw
132
15
in. Lb.
Nm
Max. Mounting Torque, M10 Terminal Screw
106
12
in. Lb.
Nm
Module Weight, Typical
455
g
11.75
lb
V Isolation @ 25C
V
rms
3000 V
08/20/2002
PA43__06
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
AC Switch SCR Isolated Module
1330 Amps RMS, Up to 2400 Volts
Electrical Characteristics, T
J
=25
C unless otherwise specified
Characteristics Symbol
Test
Conditions
Min.
Max.
Units
Repetitive Peak Forward Leakage Current
I
DRM
Up to 2400V, T
J
=125
C
100
mA
Repetitive Peak Reverse Leakage Current
I
RRM
Up to 2400V, T
J
=125
C
100
mA
Peak On-State Voltage
V
FM
I
TM
=3000A, T
J
=125
C
1.75
V
Threshold Voltage, Low-level
Slope Resistance, Low-level
V
(TO)1
r
T1
T
J
= 125
C, I = 15%I
T(AV)
to
I
T(AV)
0.869
0.237
V
m
Threshold Voltage, High-level
Slope Resistance, High-level
V
(TO)2
r
T2
T
J
= 125
C, I =
I
T(AV)
to I
TSM
1.055
0.175
V
m
V
TM
Coefficients, Full Range
T
J
= 125
C, I = 50A to 6kA
V
TM
= A+ B Ln I +C I + D Sqrt I
A =
B =
C =
D =
0.93159
-4.51 E-02
9.95 E-05
1.29 E-02
Minimum dV/dt
dV/dt
Exponential to 0.67V
DRM
T
j
=125
C, Gate Open
600 Typ.
V/
s
Gate Trigger Current
I
GT
T
j
=25
C, V
D
=12V
200
mA
Gate Trigger Voltage
V
GT
T
j
=25
C, V
D
=12V
3.0
Volts
Non-Triggering Gate Voltage
V
GDM
T
j
=125
C, V
D
= V
DRM
0.15
Volts
Holding Current
I
H
300
mA
Peak Forward Gate Current
I
GTM
4.0
Amp
Peak Reverse Gate Voltage
V
GRM
5
Volts
Maximum Average Gate Power Dissipation
P
GM (AVE)
16
Watts
Thermal Characteristics
Characteristics Symbol
Max.
Units
Thermal Resistance, Junction to Case
R
J-C
Per Module, both conducting
Per Junction, both conducting
0.029
0.058
C/W
C/W
Thermal Impedance Coefficients
Z
J-C
Z
J-C
= K
1
(1-exp(-t/
t
1
))
+ K
2
(1-exp(-t/
t
2
))
+ K
3
(1-exp(-t/
t
3
))
+ K
4
(1-exp(-t/
t
4
))
K
1
= 5.04 E-04
K
2
= 2.31 E-03
K
3
= 2.83 E-03
K
4
=5.24 E-02
t
1
= 2.47 E-03
t
2
= 4.42 E-02
t
3
= 1.370
t
4
= 9.668
Thermal Resistance, Case to Sink Lubricated
R
C-S
Per Module
0.009
C/W
08/20/2002
PA43__06
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
AC Switch SCR Module
1330 Amps RMS, Up to 2400 Volts
08/20/2002
PA43__06
Maximum Transient Thermal Impedance
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.001
0.01
0.1
1
10
100
Time - t - Seconds
T
h
e
r
ma
l
I
m
pe
da
nc
e
-
R
j
c
-
C
/
W
(Junction To Case)
Typical On-State Forward Voltage Drop
0
0.5
1
1.5
2
2.5
3
3.5
4
10
100
1000
10000
100000
Instantaneous On-State Current - It - Amperes
O
n
-
S
ta
te
V
o
l
t
a
g
e
-
V
t
-
V
o
l
t
s
(Tj = 125C)
0
180
360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
15
30
60
90
120
180
0
200
400
600
800
1000
1200
0
100
200
300
400
500
600
700
800
Average On-State Current - It(av) - Amperes
M
ax.
P
o
w
e
r
Di
ss
i
p
at
i
o
n
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
60
70
80
90
100
110
120
130
0
100
200
300
400
500
600
700
800
Average On-State Current - It(av) - Amperes
M
ax.
Ca
se T
e
mp
era
t
u
r
e -
T
c
ase
-
C_
(Sinusoidal Waveform)
0
180
360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
360
15
270
180
120
30
60
90
0
200
400
600
800
1000
1200
1400
1600
0
200
400
600
800
1000
1200
1400
Average On-State Current - It(av) - Amperes
M
ax. Po
wer
D
i
ss
i
p
a
t
i
o
n
Per SC
R
-
Wa
t
t
s
_
(Rectangular Waveform)
0
180
360
CONDUCTION ANGLE
Maximum Allowable Case Temperature
270
180
120
90
60
30
15
360
30
40
50
60
70
80
90
100
110
120
130
0
200
400
600
800
1000
1200
1400
Average On-State Current - It(av) - Amperes
M
a
x.
C
a
se
T
e
m
p
er
a
t
u
r
e -
T
c
a
s
e
-
C
_
(Rectangular Waveform)
PRELIMINARY
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
AC Switch SCR Module
1330 Amps RMS / 1800 Volts
PA43__06
08/20/2002
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