D-490
DISCRETE POWER DIODES and THYRISTORS
DATA BOOK
ST303S SERIES
INVERTER GRADE THYRISTORS
Stud Version
300A
D-491
Bulletin I25173/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)
300 A
@ T
C
65 °C
I
T(RMS)
471 A
I
TSM
@ 50Hz 7950 A
@ 60Hz 8320 A
I
2
t @ 50Hz 316 KA2s
@ 60Hz 288 KA
2
s
V
DRM/VRRM
400 to 1200 V
t
q
range (*) 10 to 30 µs
T
J
- 40 to 125 °C
Parameters ST303S Units
Major Ratings and Characteristics
(*) tq = 10 to 20µs for 400 to 800V devices
t
q
= 15 to 30µs for 1000 to 1200V devices
case style
TO-209AE (TO-118)
ST303S Series
D-492
ST303S 50
Voltage V
DRM/VRRM
, maximum V
RSM
, maximum I
DRM/IRRM
max.
Type number Code repetitive peak voltage non-repetitive peak voltage
@ TJ = TJ max.
V V mA
04 400 500
08 800 900
10 1000 1100
12 1200 1300
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Frequency Units
50Hz 670 470 1050 940 5240 4300
400Hz 480 330 1021 710 1800 1270
1000Hz 230 140 760 470 730 430 A
2500Hz 35 - 150 - 90 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/µs
Case temperature 40 65 40 65 40 65 °C
Equivalent values for RC circuit 10Ω / 0.47µF 10Ω / 0.47µF 10Ω / 0.47µF
I
TM
180oel
180
o
el
100µs
I
TM
I
TM
Current Carrying Capability
V
I
T(AV)
Max. average on-state current 300 A 180° conduction, half sine wave
@ Case temperature 65 °C
I
T(RMS)
Max. RMS on-state current 471 DC @ 45°C case temperature
I
TSM
Max. peak, one half cycle, 7950 t = 10ms No voltage
non-repetitive surge current 8320 A t = 8.3ms reapplied
6690 t = 10ms 100% V
RRM
7000 t = 8.3ms reapplied Sinusoidal half wave,
I
2
t Maximum I2t for fusing 316 t = 10ms No voltage Initial TJ = TJ max
288 t = 8.3ms reapplied
224 t = 10ms 100% V
RRM
204 t = 8.3ms reapplied
I
2
√t Maximum I2√t for fusing 3160 KA2√s t = 0.1 to 10ms, no voltage reapplied
Parameter ST303S Units Conditions
On-state Conduction
KA2s