Type SPT407 thyristor is optimized especially for pulse power and static transfer switch applications for which lowest
on-state voltage is achieved. The silicon junction utilizes a second generation pilot gate and a unique orientation of
emitter shorts which promote the lateral expansion of conducting plasma resulting in lower spreading losses while
achieving high dv/dt withstand. It is supplied in a reliable plastic light weight package
reliable plastic light weight package
reliable plastic light weight package
reliable plastic light weight package
reliable plastic light weight package using SPCO's revolutionary
"Light Silicon Sandwich", LSS
LSS
LSS
LSS
LSS technology, a new termination technique which eliminates heavy refractory metal as
a substrate while retaining an alloyed anode interface necessary for high surge current duty. External posts are
available for adjoining commercially available heat dissipators using clamping hardware.
175 GREAT VALLEY PKWY. MALVERN, PA 19355
U S A
ON-STATE CHARACTERISTIC
Process Maximum
1000
10000
100000
0
1
2
3
4
5
6
7
8
On-State Current, It (A)
On-State Voltage, Vt (V)
On-State Voltage, Vt (V)
97f:
Process Maximum
Pulsed Currents
Tcase = 25 & 125 C
25 C
125 C
Maximum Off-State & Reverse
Blocking Voltage Ratings
97f:pm5
T
J
= 0 to 115
o
C
V
DRM
V
RRM
(volts)
SPT407DK
2500
2500
SPT407DH
2400
2400
SPT407DF
2300
2300
SPT407DD
2200
2200
SPT407DB
2100
2100
SPT407TT
2000
2000
External clamping force
25000 - 30000 lb
Optional external posts drw.# 0215B8315
Ni plated copper, 0.35" thick each.
Compressed thickness including external posts
0.86" - 0.87"
Weight: 18 oz
3 lb 10 oz with posts
1.000E-07
1.000E-06
1.000E-05
1.000E-04
1.000E-03
0.01
THERMAL IMPEDANCE vs. ON-TIME
Zthj-c (deg C/W)
Power On-Time (seconds)
Power On-Time (seconds)
7/1/97 rev 96d:
.0001
.001
.01
.1
1.
10
.0031
.0047
to sink*
to case
* double sided cooling
through external copper
post inserts
rev 3 2/10/2000
SPT407 125mm
SPT407 125mm
SPT407 125mm
SPT407 125mm
SPT407 125mm THYRIST
THYRIST
THYRIST
THYRIST
THYRISTO R
O R
O R
O R
O R
2500V / 7525A
2500V / 7525A
2500V / 7525A
2500V / 7525A
2500V / 7525A
C
D
D
B
A
Nominal Dimensions
A
B
C
D
inch
mm
6
162.7
106.4
20.24
8.00
13/32
3/16
51/64
4
dia.
dia.
dia.
dia.
C
0.3149
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
97f: rev 3 2/10/2000
SPT407
SPT407
SPT407
SPT407
SPT407
di
dt
di
dt
RM
(REC)
t
Snappiness
F = di/dt(rec) / di/dt
I
10
100
1000
1
10
100
Peak Recovery Current Relationship
with Commutating di/dt
Peak Recovery Current, Irm, (A)
Commutating di/dt, (A/us)
Commutating di/dt, (A/us)
2000
Process Limit
Itm = 100 kA
Tj = 125 C
Recommended gate drive to sustain turn-on di/dt rating
V
OC
= 50 V
I
SS
= 5 A
rise time = 0.5 us
duration 10 - 20 us
0
2.5
5
7.5
10
12.5
15
17.5
20
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FULL CYCLE AVERAGE POWER LOSS
versus
PEAK CURRENT at 50/60 Hz
Full Cycle Average Power, Pavg, (kW)
Peak Current, It (kA)
Peak Current, It (kA)
97f:
(plasma spreading and conduction loss)
overlap angle
= 20 degree
180 degree
sinewave
120 deg.sq. wave
Tj = 125 degC
2500
823
885
5000
1814
1979
7500
2972
3284
10000
4298
4800
12500
5792
6527
15000
7454
8466
17500
9285
10617
20000
11284
12979
22500
13451
15554
25000
15787
18341
I
T
(peak)
half-sine
3ph
180
o
120
o
amperes
watts
watts
FULL CYCLE AVERAGE POWER LOSS
50 / 60 Hz T
J
= 125
o
C
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 115
to 115
to 115
to 115
to 115
o
o
o
o
o
C
C
C
C
C
2500
2500
2500
2500
2500
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
Repetitive peak off-
I
I
I
I
I
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
450
450
450
450
450
m a
m a
m a
m a
m a
state & reverse current
state & reverse current
state & reverse current
state & reverse current
state & reverse current I
I
I
I
I
R R M
R R M
R R M
R R M
R R M
to 115
to 115
to 115
to 115
to 115
o
o
o
o
o
C
C
C
C
C
60
60
60
60
60
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
=
=
=
=
=
7525
7525
7525
7525
7525
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
8.3 ms
8.3 ms
8.3 ms
8.3 ms
8.3 ms
100
100
100
100
100
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
1.5 ms
1.5 ms
1.5 ms
1.5 ms
1.5 ms
150
150
150
150
150
T
T
T
T
T
J
J
J
J
J
=115
=115
=115
=115
=115
o
o
o
o
o
C
C
C
C
C
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
=4000A
=4000A
=4000A
=4000A
=4000A
1.20
1.20
1.20
1.20
1.20
V
V
V
V
V
T
T
T
T
T
J
J
J
J
J
=115
=115
=115
=115
=115
o
o
o
o
o
C
C
C
C
C
Critical gate trigger
Critical gate trigger
Critical gate trigger
Critical gate trigger
Critical gate trigger
I
I
I
I
I
G T
G T
G T
G T
G T
V
V
V
V
V
D
D
D
D
D
= 12 V
= 12 V
= 12 V
= 12 V
= 12 V
150
150
150
150
150
m a
m a
m a
m a
m a
current / voltage
current / voltage
current / voltage
current / voltage
current / voltage
V
V
V
V
V
G T
G T
G T
G T
G T
T
T
T
T
T
J
J
J
J
J
= 25
= 25
= 25
= 25
= 25
o
o
o
o
o
C
C
C
C
C
3.0
3.0
3.0
3.0
3.0
V
V
V
V
V
Non-trigger gate
Non-trigger gate
Non-trigger gate
Non-trigger gate
Non-trigger gate
I
I
I
I
I
G D
G D
G D
G D
G D
V
V
V
V
V
D
D
D
D
D
= 2000V
= 2000V
= 2000V
= 2000V
= 2000V
15
15
15
15
15
m a
m a
m a
m a
m a
current
current
current
current
current
T
T
T
T
T
J
J
J
J
J
= 115
= 115
= 115
= 115
= 115
o
o
o
o
o
C
C
C
C
C
Maximum peak
Maximum peak
Maximum peak
Maximum peak
Maximum peak
I
I
I
I
I
R M
R M
R M
R M
R M
di/dt = 2 A/us
di/dt = 2 A/us
di/dt = 2 A/us
di/dt = 2 A/us
di/dt = 2 A/us
130
130
130
130
130
A
A
A
A
A
recovery current
recovery current
recovery current
recovery current
recovery current
T
T
T
T
T
J
J
J
J
J
= 115
= 115
= 115
= 115
= 115
o
o
o
o
o
C
C
C
C
C
snappiness F = 2-3
snappiness F = 2-3
snappiness F = 2-3
snappiness F = 2-3
snappiness F = 2-3
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
=115
=115
=115
=115
=115
o
o
o
o
o
C
C
C
C
C
100
100
100
100
100
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
with 60A snubber discharge
with 60A snubber discharge
with 60A snubber discharge
with 60A snubber discharge
with 60A snubber discharge
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
=115
=115
=115
=115
=115
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
= 67% V
= 67% V
= 67% V
= 67% V
= 67% V
D R M
D R M
D R M
D R M
D R M
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
V
V
V
V
V
D
D
D
D
D
= 50%V
= 50%V
= 50%V
= 50%V
= 50%V
D R M
D R M
D R M
D R M
D R M
4
4
4
4
4
us
us
us
us
us
T
T
T
T
T
J
J
J
J
J
=115
=115
=115
=115
=115
o
o
o
o
o
C
C
C
C
C
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
300
300
300
300
300
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
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