ST173S SERIES
INVERTER GRADE THYRISTORS
Stud Version
175A
D-451
Bulletin I25181/B
Features
All diffused design
Center amplifying gate
Guaranteed high dv/dt
Guaranteed high di/dt
High surge current capability
Low thermal impedance
High speed performance
Typical Applications
Inverters
Choppers
Induction heating
All types of force-commutated converters
I
T(AV)
175
A
@ T
C
85
C
I
T(RMS)
275
A
I
TSM
@
50Hz
4680
A
@ 60Hz
4900
A
I
2
t
@
50Hz
110
KA
2
s
@ 60Hz
100
KA
2
s
V
DRM
/V
RRM
1000 to 1200
V
t
q
range
15 to 25
s
T
J
- 40 to 125
C
Parameters
ST173S
Units
Major Ratings and Characteristics
case style
TO-209AB (TO-93)
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ST173S Series
D-452
Voltage
V
DRM
/V
RRM
, maximum
V
RSM
, maximum
I
DRM
/I
RRM
max.
Type number
Code
repetitive peak voltage
non-repetitive peak voltage
@ T
J
= T
J
max.
V
V
mA
10
1000
1100
12
1200
1300
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Frequency
Units
50Hz
500
320
790
550
4510
3310
400Hz
450
290
810
540
1970
1350
1000Hz
330
190
760
490
1050
680
A
2500Hz
170
80
510
300
480
280
Recovery voltage Vr
50
50
50
50
50
50
Voltage before turn-on Vd
V
DRM
V
DRM
V
DRM
Rise of on-state current di/dt
50
50
-
-
-
-
A/
s
Case temperature
60
85
60
85
60
85
C
Equivalent values for RC circuit
47
/ 0.22F
47
/ 0.22F
47
/ 0.22F
I
TM
180
o
el
180
o
el
100
s
I
TM
I
TM
Current Carrying Capability
V
I
T(AV)
Max. average on-state current
175
A
180 conduction, half sine wave
@ Case temperature
85
C
I
T(RMS)
Max. RMS on-state current
275
DC @ 75C case temperature
I
TSM
Max. peak, one half cycle,
4680
t = 10ms
No voltage
non-repetitive surge current
4900
A
t = 8.3ms
reapplied
3940
t = 10ms
100% V
RRM
4120
t = 8.3ms
reapplied
Sinusoidal half wave,
I
2
t
Maximum I
2
t for fusing
110
t = 10ms
No voltage
Initial T
J
= T
J
max
100
t = 8.3ms
reapplied
77
t = 10ms
100% V
RRM
71
t = 8.3ms
reapplied
I
2
t
Maximum I
2
t for fusing
1100
KA
2
s
t = 0.1 to 10ms, no voltage reapplied
Parameter
ST173S
Units
Conditions
On-state Conduction
KA
2
s
ST173S
40
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ST173S Series
D-456
Fig. 3 - On-state Power Loss Characteristics
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Fig. 4 - On-state Power Loss Characteristics
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ST173S Series
D-457
Fig. 7 - On-state Voltage Drop Characteristics
Fig. 8 - Thermal Impedance Z
thJC
Characteristic
Fig. 10 - Reverse Recovery Current Characteristics
Fig. 9 - Reverse Recovered Charge Characteristics
Fig. 6 - Maximum Non-repetitive Surge Current
Fig. 5 - Maximum Non-repetitive Surge Current
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