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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
100
1000
10000
Process Maximum
8 ms Sine Pulses
On-State Voltage, Vt (V)
On-State Current, It (A)
On-State Current, It (A)
95f:
Initial Tj
125 C
25 C
REPETITIVE PEAK REVERSE
AND OFF-STATE BLOCKING
V O L T A G E
T
J
= 0 to 125
o
C
M O D E L
V
D R M
V
R R M
(volts)
(volts)
SDT122FT
4000
4000
SDT122FS
3900
3900
SDT122FR
3800
3800
SDT122FP
3700
3700
SDT122FM
3600
3600
SDT122FK
3500
3500
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 125
to 125
to 125
to 125
to 125
o
o
o
o
o
C
C
C
C
C
4000
4000
4000
4000
4000
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
D R M
D R M
D R M
D R M
D R M
to 125
to 125
to 125
to 125
to 125
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
75
75
75
75
75
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 125
to 125
to 125
to 125
to 125
o
o
o
o
o
C
C
C
C
C
75
75
75
75
75
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
=
=
=
=
=
950
950
950
950
950
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
16.0
16.0
16.0
16.0
16.0
kA
kA
kA
kA
kA
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
14.7
14.7
14.7
14.7
14.7
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
=1kA
=1kA
=1kA
=1kA
=1kA
1.60
1.60
1.60
1.60
1.60
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
=125
=125
=125
=125
=125
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
=125
=125
=125
=125
=125
o
o
o
o
o
C
C
C
C
C
75
75
75
75
75
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
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
=125
=125
=125
=125
=125
o
o
o
o
o
C
C
C
C
C
1000
1000
1000
1000
1000
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
D
D
D
D
D
= .8V
= .8V
= .8V
= .8V
= .8V
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
=125
=125
=125
=125
=125
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
60
60
60
60
60
5A/us
5A/us
5A/us
5A/us
5A/us
110
110
110
110
110
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
3
3
3
3
3
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
500
500
500
500
500
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
95f: 5/27/96
Type SDT122 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.
SDT122
SDT122
SDT122
SDT122
SDT122
53mm / 4.0kV THYRISTOR
53mm / 4.0kV THYRISTOR
53mm / 4.0kV THYRISTOR
53mm / 4.0kV THYRISTOR
53mm / 4.0kV THYRISTOR
B
B
A
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
2200
2400
2600
0
500
1000
1500
2000
2500
3000
FULL CYCLE AVERAGE POWER LOSS
versus
PEAK CURRENT at 50/60 Hz
Pavg (watts)
Peak Current,It (A)
Peak Current,It (A)
95f:
(plasma spreading and conduction loss)
overlap angle
= 20 degree
180 degree
sinewave
120 deg.sq. wave
T(av) = T / 3
T(av) = T / 3.1416
I
I
I
I
MAXIMUM PEAK RECOVERY CURRENT
Irm, (A)
Circuit diR/dt, (A/us)
Circuit diR/dt, (A/us)
95F:
.1
1.
5.
Irm
2
Qrr = ----
(uC)
(A/us)
approximation
di/dt
10
20
50
100
110
Tj ( C)
125
25
SDT122
sh2 7/11/95
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
GATE SUPPLY REQUIREMENTS
Open circuit voltage
30 V
Short circuit current
3 A
- rise time
0.5us
Pulse duration (min)
20 us
Full Cycle Pow er Loss (w atts)
50/60 Hz, T
J
=125
o
C
I
T
(peak)
Half-sine
3 Phase
(A)
180
o
120
o
200
63
69
400
147
162
600
244
270
800
351
390
1000
468
523
1200
596
669
1400
734
828
1600
883
1001
1800
1043
1187
2000
1213
1387
2200
1394
1601
2400
1556
1829
2600
1789
2071
2800
2004
2327
3000
2229
2598
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