100mm
100mm
100mm
100mm
100mm THYRIST
THYRIST
THYRIST
THYRIST
THYRISTOR PRESSP
OR PRESSP
OR PRESSP
OR PRESSP
OR PRESSPA K
A K
A K
A K
A K
5000V / 3600A
5000V / 3600A
5000V / 3600A
5000V / 3600A
5000V / 3600A
Type C791 thyristor is suitable for phase control applications such as for HVDC valves,static VAR
compensators and synchronous motor drives.The silicon junction design 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 an
industry accepted disc-type package,ready to mount using commercially available heat dissipators and
mechanical clamping hardwar
e
.
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)
C791EP
5000
5000
C791DT
4900
4900
C791DN
4800
4800
C791DS
4700
4700
C791DM
4600
4600
C791DE
4500
4500
MECHANICAL OUTLINE
C791
C791
C791
C791
C791
175 GREAT VALLEY PKWY. MALVERN, PA 19355
U S A
Rev. 4 10/29/01
ELECTRICAL
CREEPAGE / STRIKE
1.6 / 1.0 in
40.6 / 25.4 mm
CLAMPING FORCE
(range)
17000-19000 lb.
B
B
A
2 0 5
D
CL
CL
J
A
A
A
A
A F
F
F
F
F = 5.65 in (143.5 mm)
= 5.65 in (143.5 mm)
= 5.65 in (143.5 mm)
= 5.65 in (143.5 mm)
= 5.65 in (143.5 mm)
B
B
B
B
B F
F
F
F
F =3.92 in (99.4 mm)
=3.92 in (99.4 mm)
=3.92 in (99.4 mm)
=3.92 in (99.4 mm)
=3.92 in (99.4 mm)
D=1.45in (36.8 mm)
D=1.45in (36.8 mm)
D=1.45in (36.8 mm)
D=1.45in (36.8 mm)
D=1.45in (36.8 mm)
1000
10000
0
1
2
3
4
5
6
7
8
9
10
11
12
On-State Current, It (A)
On-State Voltage, Vt (volts)
On-State Voltage, Vt (volts)
01a:C791
60000
Process Maximum
pulsed currents
Tcase = 125 C
On-State Characteristic
Thermal Impedance
0.001
0.01
0.1
1
10
Zthj-case (degC/watt)
Power On-time (seconds)
Power On-time (seconds)
o1a:t305tau
.0001
.001
.01
Rthj-c=.005 degC/W
add .002 for
case to sink
C791 / 6RT302
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
LIMITING CHARACTERISTICS AND RATINGS
10000
100000
1
10
1
10
Non-Repetitive Surge Current
and I2t for Fusing
Itsm (kA)
Half Sine Pulse Duration, tp (ms)
I2t Mamp2sec
Half Sine Pulse Duration, tp (ms)
01l:C791ITSM
I2t
Itsm
0
10
20
30
40
50
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Gate Characteristics and
Gate Supply Requirements
Instantaneous Voltage (V)
Instantaneous Current (A)
Instantaneous Current (A)
T302
dynamic @ 105 C
static (dc) @ 25 C
load line
Sh2 Rev. 4
10/29/01
THYRISTOR GATE IMPEDANCE
Enhanced by fast rising gate voltage,increasing anode bias
and junction temperature.It is at a minimum for dc current,
zero anode bias and low temperature.
GATE SUPPLY
Prefer 50V/10 ohm for supporting the di/dt rating
and life expectancy. The short circuit current risetime
should be nominally 0.5us and the duration longer than the
expected delay time for all magnitudes of anode
bias. Practically 10-30us is recommended followed by a back
porch of 750ma if needed to sustain conduction.
MINIMUM ACCEPTABLE GATE CURRENT
The intersection of the load line and gate impedance
characteristic indicates the minimum value of actual current
needed during the delay time interval to support di/dt.A
different load line meeting this criterion may be used.
MAXIMUM GATE RATINGS
Peak gate power,Pgm(100us) = 300 W
Average gate power,Pg(av) = 50W
Peak gate current,Igfm = 25 A
Peak reverse voltage,Vgrm = 25 V
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
5000
5000
5000
5000
5000
@ 5Hz
@ 5Hz
@ 5Hz
@ 5Hz
@ 5Hz
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, 60Hz
crest voltage, 60Hz
crest voltage, 60Hz
crest voltage, 60Hz
crest voltage, 60Hz
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
200
200
200
200
200
m a
m a
m a
m a
m a
leakage current, 60Hz
leakage current, 60Hz
leakage current, 60Hz
leakage current, 60Hz
leakage current, 60Hz
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
200
200
200
200
200
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
=
=
=
=
=
3600
3600
3600
3600
3600
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
44.5
44.5
44.5
44.5
44.5
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
41.5
41.5
41.5
41.5
41.5
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
2.00
2.00
2.00
2.00
2.00
V
V
V
V
V
t
t
t
t
t
P
P
P
P
P
=8.3ms
=8.3ms
=8.3ms
=8.3ms
=8.3ms
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
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
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
=.67V
=.67V
=.67V
=.67V
=.67V
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
90
90
90
90
90
5A/us
5A/us
5A/us
5A/us
5A/us
195
195
195
195
195
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
4
4
4
4
4
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
.005
.005
.005
.005
.005
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
17000
17000
17000
17000
17000
lbs.
lbs.
lbs.
lbs.
lbs.
clamping force
clamping force
clamping force
clamping force
clamping force
-19000
-19000
-19000
-19000
-19000
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
U = 2 deg
U = 20
U = 40
0
500
1000
1500
2000
2500
3000
3500
4000
FULL CYCLE AVERAGE POWER DISSIPATION
120-deg Conduction -includes spread loss
as function of Overlap Angle , U
Average Power , Pavg (watts)
Peak Current ,It (amperes)
Peak Current ,It (amperes)
5000V 100mm
U
U
120 degrees
120 deg + U
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
3000
3500
4000
FULL CYCLE AVERAGE POWER DISSIPATION
Sine Wave - includes spread loss
as function of conduction angle
Avg. Power, Pavg (W)
Peak Current, It (amperes)
Peak Current, It (amperes)
6RT302
conduction angle (degrees)
180
150
120
90
60
30
conduction angle
C791 / 6RT302
0
1000
2000
3000
4000
5000
0
100
200
300
400
INRUSH CURRENT (di/dt) RATING
versus
SWITCHING VOLTAGE
Switching Voltage,Vd (volts)
di/dt in A/us
di/dt in A/us
T302
single shot
50/60 Hz
Snubber resistor = 30 ohms
snubber inductance = 12 uH
sh 3. Rev. 4. 10/29/01
10
100
Process Maximum
0.1
1
PEAK RECOVERY CURRENT
versus
COMMUTATING di/dt
Peak recovery Current (A)
di/dt (A/us)
di/dt (A/us)
6RT302
200
5
di
dt
di
dt
I
RM(REC)
R
(REC)
t
Tj = 125degC
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