Bulletin I25161 rev. B 01/94
ST280S SERIES
PHASE CONTROL THYRISTORS
Stud Version
Features
Center amplifying gate
Hermetic metal case with glass-metal seal insulator
International standard case TO-209AB (TO-93)
Threaded studs UNF 3/4 - 16UNF2A or ISO M16x1.5
Compression Bonded Encapsulation for heavy duty
operations such as severe thermal cycling
280A
Typical Applications
DC motor controls
Controlled DC power supplies
AC controllers
Major Ratings and Characteristics
Parameters
I
T(AV)
@ T
C
I
T(RMS)
I
TSM
@ 50Hz
@ 60Hz
I
2
t
@ 50Hz
@ 60Hz
V
DRM
/V
RRM
t
q
T
J
typical
ST280S
280
85
440
7850
8220
308
281
400 to 600
100
- 40 to 125
Units
A
°C
A
A
A
KA
2
s
KA
2
s
V
µs
°C
case style
TO-209AB (TO-93)
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1
ST280S Series
Bulletin I25161 rev. B 01/94
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Voltage
Type number
Code
04
06
V
DRM
/V
RRM
, max. repetitive
peak and off-state voltage
V
400
600
V
RSM
, maximum non-
repetitive peak voltage
V
500
700
I
DRM
/I
RRM
max.
@ T
J
= T
J
max
mA
30
ST280S
On-state Conduction
Parameter
I
T(AV)
Max. average on-state current
@ Case temperature
I
T(RMS)
Max. RMS on-state current
I
TSM
Max. peak, one-cycle
non-repetitive surge current
ST280S
280
85
440
7850
8220
6600
6900
Units Conditions
A
°C
A
DC @ 75°C case temperature
t = 10ms
t = 8.3ms
A
t = 10ms
t = 8.3ms
t = 10ms
KA
2
s
t = 8.3ms
t = 10ms
t = 8.3ms
KA
√s
2
180° conduction, half sine wave
No voltage
reapplied
100% V
RRM
reapplied
No voltage
reapplied
100% V
RRM
reapplied
Sinusoidal half wave,
Initial T
J
= T
J
max.
I
2
t
Maximum I
2
t for fusing
310
220
218
200
I
√
t
2
Maximum I
√t
for fusing
2
3100
0.84
t = 0.1 to 10ms, no voltage reapplied
(16.7% x
π
x I
T(AV)
< I <
π
x I
T(AV)
), T
J
= T
J
max.
V
T(TO)1
Low level value of threshold
voltage
V
T(T O)2
High level value of threshold
voltage
r
t
1
V
0.88
(I >
π
x I
T(AV)
),T
J
= T
J
max.
(16.7% x
π
x I
T(AV)
< I <
π
x I
T(AV)
), T
J
= T
J
max.
mΩ
0.47
1.28
600
1000 (300)
mA
T
J
= 25°C, anode supply 12V resistive load
V
(I >
π
x I
T(AV)
),T
J
= T
J
max.
I = 880A, T
J
= T
J
max, t = 10ms sine pulse
pk
p
Low level value of on-state
slope resistance
0.50
r
t
2
High level value of on-state
slope resistance
V
TM
I
H
I
L
Max. on-state voltage
Maximum holding current
Max. (typical) latching current
Switching
Parameter
di/dt
Max. non-repetitive rate of rise
of turned-on current
Typical delay time
Typical turn-off time
ST280S
1000
1.0
Units Conditions
A/µs
Gate drive 20V, 20Ω, t
r
≤
1µs
T
J
= T
J
max, anode voltage
≤
80% V
DRM
Gate current 1A, di /dt = 1A/µs
g
t
d
t
q
µs
100
V = 0.67% V
DRM
, T
J
= 25°C
d
I
TM
= 300A, T
J
= T
J
max, di/dt = 20A/µs, V
R
= 50V
dv/dt = 20V/µs, Gate 0V 100Ω, t
p
= 500µs
2
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ST280S Series
Bulletin I25161 rev. B 01/94
Blocking
Parameter
dv/dt
I
DRM
I
RRM
Maximum critical rate of rise of
off-state voltage
Max. peak reverse and off-state
leakage current
ST280S
500
30
Units Conditions
V/µs
mA
T
J
= T
J
max linear to 80% rated V
DRM
T
J
= T
J
max, rated V
DRM
/V
RRM
applied
Triggering
Parameter
P
GM
I
GM
+V
GM
-V
GM
Maximum peak gate power
ST280S
10.0
2.0
3.0
20
Units Conditions
W
A
T
J
= T
J
max, t
≤
5ms
p
P
G(AV)
Maximum average gate power
Max. peak positive gate current
Maximum peak positive
gate voltage
Maximum peak negative
gate voltage
TYP.
I
GT
DC gate current required
to trigger
180
90
40
V
GT
DC gate voltage required
to trigger
2.9
1.8
1.2
I
GD
V
GD
DC gate current not to trigger
DC gate voltage not to trigger
T
J
= T
J
max, f = 50Hz, d% = 50
T
J
= T
J
max, t
≤
5ms
p
V
5.0
MAX.
-
150
-
-
3.0
-
10
0.25
mA
V
V
mA
T
J
= T
J
max, t
≤
5ms
p
T
J
= - 40°C
T
J
= 25°C
T
J
= 125°C
T
J
= - 40°C
T
J
= 25°C
T
J
= 125°C
Max. gate current/ voltage not to
trigger is the max. value which
will not trigger any unit with rated
V
DRM
anode-to-cathode applied
Max. required gate trigger/ cur-
rent/ voltage are the lowest value
which will trigger all units 12V
anode-to-cathode applied
T
J
= T
J
max
Thermal and Mechanical Specification
Parameter
T
J
T
stg
Max. operating temperature range
Max. storage temperature range
ST280S
-40 to 125
-40 to 150
0.105
Units
°C
Conditions
R
thJC
Max. thermal resistance,
junction to case
R
thCS
Max. thermal resistance,
case to heatsink
T
Mounting torque, ± 10%
DC operation
K/W
0.04
31
(275)
24.5
(210)
Mounting surface, smooth, flat and greased
Non lubricated threads
Nm
(lbf-in)
Lubricated threads
g
See Outline Table
wt
Approximate weight
Case style
280
TO - 209AB (TO-93)
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3
ST280S Series
Bulletin I25161 rev. B 01/94
∆R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
Conduction angle
180°
120°
90°
60°
30°
Sinusoidal conduction Rectangular conduction Units
0.016
0.019
0.025
0.036
0.060
0.012
0.020
0.027
0.037
0.060
K/W
Conditions
T
J
= T
J
max.
Ordering Information Table
Device Code
ST
1
28
2
0
3
S
4
06
5
P
6
0
7
V
8
9
1
2
3
4
5
6
-
-
-
-
-
-
Thyristor
Essential part number
0 = Converter grade
S = Compression bonding Stud
Voltage code: Code x 100 = V
RRM
(See Voltage Rating Table)
P = Stud base 16UNF threads
M = Stud base metric threads (M16 x 1.5)
7
-
0 = Eyelet terminals (Gate and Auxiliary Cathode Leads)
1 = Fast - on terminals (Gate and Auxiliary Cathode Leads)
2 = Flag terminals (For Cathode and Gate Terminals)
8
9
-
-
V = Glass-metal seal
Critical dv/dt: None = 500V/µsec (Standard selection)
L
= 1000V/µsec (Special selection)
4
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ST280S Series
Bulletin I25161 rev. B 01/94
Outline Table
GLASS METAL SEAL
19 (0.75) MAX.
8.5 (0.33) DIA.
4.3 (0.17) DIA.
MI
N.
(0 .
9. 5
(0 .
22
86
)
MI
N.
37)
4 (0.16) MAX.
FLEXIBLE LEAD
C.S. 25mm 2
(0.039 s.i.)
RED SILICON RUBBER
10 (0. 39)
RED CATHODE
C.S. 0.4mm
(0.0006 s.i.)
WHITE GATE
2
Fast-on Terminals
+I
210 (8.26)
AMP. 280000-1
REF-250
90 (3. 54) MIN.
RED SHRINK
220 (8.66)
+
10 (0.39)
-
WHITE SHRINK
38 .5 (1.52)
16 (0.63) MAX.
MAX.
28.5 (1.12) MAX. DIA.
27.5 (1.0 8)
MAX.
SW 32
3/4"-16UNF-2A *
35 (1.38) MAX.
Case Style TO-209AB (TO-93)
All dimensions in millimeters (inches)
* FOR METRIC DEVICE : M16 x 1.5 - LENGHT 21 (0.83) MAX.
GLASS-METAL SEAL
FLAG TERMINALS
22 (0.89)
14 (0.55)
DIA. 6.5 (0.25)
13 (0 .51)
80 (3.15) MAX.
1.5 (0.06) DIA.
3 8.5 (1.52) MAX .
DIA. 28.5 (1.12) MAX.
27 .5 (1.08) MAX.
1 6 ( 0.63 ) MAX .
SW 32
3/4"-16UNF-2A*
*FOR METRIC DEVICE. M16 X 1.5 - LENGHT 21 (0.83) MAX.
Case Style TO-209AB (TO-93) Flag
All dimensions in millimeters (inches)
3 (0.12)
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