PRINCIPAL RATINGS AND CHARACTERISTICS
PRINCIPAL RATINGS AND CHARACTERISTICS
PRINCIPAL RATINGS AND CHARACTERISTICS
PRINCIPAL RATINGS AND CHARACTERISTICS
PRINCIPAL RATINGS AND CHARACTERISTICS
ON-STATE CHARACTERISTIC
ON-STATE CHARACTERISTIC
ON-STATE CHARACTERISTIC
ON-STATE CHARACTERISTIC
ON-STATE CHARACTERISTIC
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
MECHANICAL OUTLINE
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
V
V
V
V
V
D R M
D R M
D R M
D R M
D R M
T
T
T
T
T
J
J
J
J
J
=0
=0
=0
=0
=0
up to
up to
up to
up to
up to
V
V
V
V
V
state & reverse volts
state & reverse volts
state & reverse volts
state & reverse volts
state & reverse volts
V
V
V
V
V
R R M
R R M
R R M
R R M
R R M
to 110
to 110
to 110
to 110
to 110
o
o
o
o
o
C
C
C
C
C
9000
9000
9000
9000
9000
Repetitive working
Repetitive working
Repetitive working
Repetitive working
Repetitive working
V
V
V
V
V
D W M
D W M
D W M
D W M
D W M
T
T
T
T
T
J
J
J
J
J
=0
=0
=0
=0
=0
0.8V
0.8V
0.8V
0.8V
0.8V
D R M
D R M
D R M
D R M
D R M
crest voltage
crest voltage
crest voltage
crest voltage
crest voltage
V
V
V
V
V
R W M
R W M
R W M
R W M
R W M
to 110
to 110
to 110
to 110
to 110
o
o
o
o
o
C
C
C
C
C
0.8V
0.8V
0.8V
0.8V
0.8V
R R M
R R M
R R M
R R M
R R M
off-state & reverse
off-state & reverse
off-state & reverse
off-state & reverse
off-state & reverse
I
I
I
I
I
D W M
D W M
D W M
D W M
D W M
T
T
T
T
T
J
J
J
J
J
=0
=0
=0
=0
=0
100
100
100
100
100
m a
m a
m a
m a
m a
leakage current
leakage current
leakage current
leakage current
leakage current
I
I
I
I
I
R W M
R W M
R W M
R W M
R W M
to 110
to 110
to 110
to 110
to 110
o
o
o
o
o
C
C
C
C
C
100
100
100
100
100
Average on-state
Average on-state
Average on-state
Average on-state
Average on-state
I
I
I
I
I
T(AV)
T(AV)
T(AV)
T(AV)
T(AV)
T
T
T
T
T
case
case
case
case
case
=
=
=
=
=
300
300
300
300
300
A
A
A
A
A
current
current
current
current
current
70
70
70
70
70
o
o
o
o
o
C
C
C
C
C
Peak half-cycle
Peak half-cycle
Peak half-cycle
Peak half-cycle
Peak half-cycle
I
I
I
I
I
T S M
T S M
T S M
T S M
T S M
60 Hz
60 Hz
60 Hz
60 Hz
60 Hz
2650
2650
2650
2650
2650
A
A
A
A
A
non-rep surge current
non-rep surge current
non-rep surge current
non-rep surge current
non-rep surge current
50 Hz
50 Hz
50 Hz
50 Hz
50 Hz
2350
2350
2350
2350
2350
On-state voltage
On-state voltage
On-state voltage
On-state voltage
On-state voltage
V
V
V
V
V
T M
T M
T M
T M
T M
I
I
I
I
I
T
T
T
T
T
=500A
=500A
=500A
=500A
=500A
4.0
4.0
4.0
4.0
4.0
V
V
V
V
V
t
t
t
t
t
P
P
P
P
P
=8ms
=8ms
=8ms
=8ms
=8ms
T
T
T
T
T
J
J
J
J
J
=105
=105
=105
=105
=105
o
o
o
o
o
C
C
C
C
C
Critical rate of rise
Critical rate of rise
Critical rate of rise
Critical rate of rise
Critical rate of rise
di/dt
di/dt
di/dt
di/dt
di/dt
T
T
T
T
T
J
J
J
J
J
=110
=110
=110
=110
=110
o
o
o
o
o
C
C
C
C
C
40
40
40
40
40
A/us
A/us
A/us
A/us
A/us
of on-state current
of on-state current
of on-state current
of on-state current
of on-state current
rep
rep
rep
rep
rep
60 Hz
60 Hz
60 Hz
60 Hz
60 Hz
V
V
V
V
V
d
d
d
d
d
=.67V
=.67V
=.67V
=.67V
=.67V
D R M
D R M
D R M
D R M
D R M
allowable snubber discharge
allowable snubber discharge
allowable snubber discharge
allowable snubber discharge
allowable snubber discharge
50
50
50
50
50
A
A
A
A
A
Critical rate of rise
Critical rate of rise
Critical rate of rise
Critical rate of rise
Critical rate of rise
dv/dt
dv/dt
dv/dt
dv/dt
dv/dt
T
T
T
T
T
J
J
J
J
J
=110
=110
=110
=110
=110
o
o
o
o
o
C
C
C
C
C
2000
2000
2000
2000
2000
V/us
V/us
V/us
V/us
V/us
of off-state voltage
of off-state voltage
of off-state voltage
of off-state voltage
of off-state voltage
V
V
V
V
V
DCRIT
DCRIT
DCRIT
DCRIT
DCRIT
=60%V
=60%V
=60%V
=60%V
=60%V
D R M
D R M
D R M
D R M
D R M
Recovery current
Recovery current
Recovery current
Recovery current
Recovery current
I
I
I
I
I
R M
R M
R M
R M
R M
T
T
T
T
T
J
J
J
J
J
=110
=110
=110
=110
=110
o
o
o
o
o
C
C
C
C
C
A
A
A
A
A
2A/us
2A/us
2A/us
2A/us
2A/us
85
85
85
85
85
5A/us
5A/us
5A/us
5A/us
5A/us
135
135
135
135
135
minimum snap factor S = 0.3
minimum snap factor S = 0.3
minimum snap factor S = 0.3
minimum snap factor S = 0.3
minimum snap factor S = 0.3
Turn-on delay
Turn-on delay
Turn-on delay
Turn-on delay
Turn-on delay
t
t
t
t
t
d
d
d
d
d
Vd=.5V
Vd=.5V
Vd=.5V
Vd=.5V
Vd=.5V
D R M
D R M
D R M
D R M
D R M
8
8
8
8
8
us
us
us
us
us
Turn-off time
Turn-off time
Turn-off time
Turn-off time
Turn-off time
T
T
T
T
T
off
off
off
off
off
5A/us,-100V
5A/us,-100V
5A/us,-100V
5A/us,-100V
5A/us,-100V
900
900
900
900
900
us
us
us
us
us
20V/us to 2000V
20V/us to 2000V
20V/us to 2000V
20V/us to 2000V
20V/us to 2000V
Thermal resistance
Thermal resistance
Thermal resistance
Thermal resistance
Thermal resistance
R
R
R
R
R
thJC
thJC
thJC
thJC
thJC
.025
.025
.025
.025
.025
c/w
c/w
c/w
c/w
c/w
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
F
F
F
F
F
5500
5500
5500
5500
5500
lbs.
lbs.
lbs.
lbs.
lbs.
clamping force
clamping force
clamping force
clamping force
clamping force
24.5
24.5
24.5
24.5
24.5
kN
kN
kN
kN
kN
Gate Drive:
Gate Drive:
Gate Drive:
Gate Drive:
Gate Drive:
50V / 10 ohm / 0.5us risetime
50V / 10 ohm / 0.5us risetime
50V / 10 ohm / 0.5us risetime
50V / 10 ohm / 0.5us risetime
50V / 10 ohm / 0.5us risetime
20us pulse duration
20us pulse duration
20us pulse duration
20us pulse duration
20us pulse duration
7/13/95
SDT123
SDT123
SDT123
SDT123
SDT123
53mm / 9kV THYRISTOR
53mm / 9kV THYRISTOR
53mm / 9kV THYRISTOR
53mm / 9kV THYRISTOR
53mm / 9kV THYRISTOR
100
1000
0
1
2
3
4
5
6
7
8
9
10
11
12
On-State Current, It (amperes)
On-State Voltage, Vt (volts)
On-State Voltage, Vt (volts)
Proceess Maximum
8ms pulses
initial Tj = 105 C
2000
Type SDT123 thyristor is suitable for phase control applications such as HVDC valves, static VAR
compensators and synchronous motor drives.
The silicon junction is manufactured by the proven multi-diffusion process and is supplied in an
industry standard disc-type package, ready to mount to forced or naturally cooled heat dissipators
using commercially available mechanical clamping hardware.
95c:
175 GREAT VALLEY PKWY. MALVERN , PA 19355
U S A
REPETITIVE PEAK REVERSE
AND OFF-STATE BLOCKING
V O L T A G E
T
J
= 0 to 110
o
C
M O D E L
V
D R M
V
R R M
(volts)
(volts)
SDT123RT
9000
9000
SDT123RK
8500
8500
SDT123PT
7000
8000
SDT123PK
7500
7500
B Ø
B Ø
A Ø
2 0° ±5 °
D
CL
CL
J
A
A
A
A
A
= 2.96 in (75.2 mm)
= 2.96 in (75.2 mm)
= 2.96 in (75.2 mm)
= 2.96 in (75.2 mm)
= 2.96 in (75.2 mm)
B
B
B
B
B
=1.90 in (48.3 mm)
=1.90 in (48.3 mm)
=1.90 in (48.3 mm)
=1.90 in (48.3 mm)
=1.90 in (48.3 mm)
D=1.07 in (27.2 mm)
D=1.07 in (27.2 mm)
D=1.07 in (27.2 mm)
D=1.07 in (27.2 mm)
D=1.07 in (27.2 mm)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0
200
400
600
800
1000
FULL CYCLE AVERAGE POWER LOSS
versus
PEAK CURRENT at 50/60 Hz
Pavg (watts)
Peak Current,It (A)
Peak Current,It (A)
(plasma spreading and conduction loss)
overlap angle
= 20 degree
180 degree
sinewave
120 deg.sq. wave
MAXIMUM PEAK RECOVERY CURRENT
Irm, (A)
Circuit diR/dt, (A/us)
Circuit diR/dt, (A/us)
95c:T123 5/6/95
10
20
50
100
200
.1
1.
5.
6RT123 THYRISTOR
Irm
2
Qrr = ----
(uC)
(A/us)
approximation
di/dt
TJ = 110 C
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
Open circuit voltage
40 V
Short circuit current
4 A
- rise time
0.5us
Pulse duration (min)
20 us
7/13/95
SDT123
Full Cycle Pow er Loss (w atts)
50/60 Hz, T
J
=110
o
C
I
T
(peak)
Half-sine
3 Phase
(A)
180
o
120
o
50
34
37
100
75
82
150
119
133
200
169
191
250
224
255
300
284
326
350
350
403
400
420
487
450
496
577
500
577
675
600
755
889
700
954
1130
800
1175
1397
900
1417
1692
1000
1680
2014
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