PRX C770__
Fast Switching Thyristo
r
Powerex, Inc., 173 Pavilion Lane, Youngwood, PA 15697-1800 724-925-7272 WWW.PWRX.COM
2100 Amperes 1800 Volts
The PRX C770 is a high voltage, high current disc
pack SCR employing a high di/dt, distributed gate
structure to optimize turn-on speed. This gate
design allows the SCR to be reliably operated at
high di/dt and dv/dt conditions in inverter
applications to 1KHz operating frequency.
FEATURES:
Fast Turn-Off Time
High di/dt Capability
High dv/dt Capability
Hermetic Ceramic Package
Excellent Surge and I
2
t Ratings
APPLICATIONS:
DC-AC Inverters
ORDERING INFORMATION Pulse Power Switches
Select the complete Part Number using the table below.
EXAMPLE: PRX C770PN is a 1800V - 2100A SCR with 250ma
IGT and 12 inch gate and cathode potential leads.
PART
Voltage
Rating
Voltage
Code
Current
Rating Turn-Off Gate Leads
V
DRM
-V
RRM
I
tavg
Tq I
GT
PRX C770__ 1800 PN 2100
60us 250ma 12"
1600 PM
1400 PD
Revised: 12/5/2008
Page 1 of 4
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PRX C770__
Fast Switching Thyristo
r
Powerex, Inc., 173 Pavilion Lane, Youngwood, PA 15697-1800 724-925-7272 WWW.PWRX.COM
2100 Amperes 1800 Volts
Absolute Maximum Rati ngs
Characteristic Symbol Rating Units
Repetitive Peak Voltage V
DRM
-V
RRM
1400 - 1800 Volts
Average On-State Current, T
C
=70°C
I
T(Avg.) 2100 A
RMS On-State Current, T
C
=70°C
I
T(RMS) 3299 A
Average On-State Current, T
C
=50°C
I
T(Avg.) 2600 A
RMS On-State Current, T
C
=50°C
I
T(RMS) 4084 A
Peak One Cycle Surge Current, 60Hz, V
R
=0V I
TSM
35,000 A
Peak One Cycle Surge Current, 50Hz, V
R
=0V I
TSM
32,998 A
Fuse Coordination I
2
t, 60Hz I
2
t5.10E+06 A
2
s
Fuse Coordination I
2
t, 50Hz I
2
t5.44E+06 A
2
s
Critical Rate-of-Rise of On-State Current di/dt 300 A/us
Repetitive .67•VDRM
Critical Rate-of-Rise of On-State Current di/dt 500 A/us
Non-Repetitive .67•VDRM
Peak Gate Power, 100us P
GM
44 Watts
Average Gate Power
P
G( )
12
Watts
Average
Gate
Power
P
G(
avg
)
12
Watts
Operating Temperature Tj -40 to+125 °C
Storage Temperature T
Stg.
-50 to+150 °C
Approximate Weight 3.5 lb
1.6 Kg
Mounting Force 9000-10000 lbs
40 - 44.5 KNewtons
Information presented is correct to the knowledge and capabilities of the
manufacturer. This information is subject to change without notice. The
manufacturer makes no claim as to suitability for use, reliability, capability or
future availability of this product.
Page 2 of 4
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PRX C770__
Fast Switching Thyristo
r
Powerex, Inc., 173 Pavilion Lane, Youngwood, PA 15697-1800 724-925-7272 WWW.PWRX.COM
2100 Amperes 1800 Volts
Electrical Characterist ics,
Tj=25°C unless otherwise specified
Rating
Characteristic Symbol Test Conditions min typ max Units
Repetitive Peak Forward
Leakage Current I
DRM
Tj=125°C, V
DRM
=Rated 150 ma
Repetitive Peak Reverse
Leakage Current I
RRM
Tj=125°C, V
RRM
=Rated 150 ma
Peak On-State Voltage V
TM
Tj=125°C, I
TM
=2000A 1.85 V
V
TM
Model, Low Level V
0
Tj=125°C 1.271 V
VTM = V
O
+
r•
I
TM
r
15%
I
TM
- π•I
TM 0.255
mΩ
V
TM
Mo
d
4-Term A Tj=125°C -1.657
V
TM
= A + B•Ln(I
TM
) + B
15%I
TM
- I
TSM 0.527
C•(I
TM
) + D•(I
TM
)½C0.000243
D-0.02197
Turn-On Delay Time t
d
V
D
= 0.5•V
DRM
2us
Gate Drive: 40V - 20Ω
Turn-Off Time tq Tj=125°C 60 us
dv/dt = 400V/us to 80% V
DRM
Reverse Recovery Current
I
R(Rec)
Tj=125°C 1500A -10A/us A
RR Ch
Cl
R
everse
R
ecovery
Ch
arge
RR
u
C
ou
l
dv/dt
(Crit)
dv/dt Tj=125°C Exp. Waveform 1000 V/us
V
D
=80% Rated
Gate Trigger Current I
GT
Tj=25°C V
D
= 12V 30 150 250 ma
Gate Trigger Voltage V
GT
0.8 2.0 4.0 V
Peak Reverse Gate Voltage V
GRM
10 V
Thermal Characteristics
Rating
Characteristic Symbol Test Conditions min typ max Units
Thermal Resistance
Junction to Case
RΘ
jc Double side cooled 0.009 0.010 °C/Watt
Case to Sink
RΘ
cs Double side cooled 0.0015 0.002 °C/Watt
Thermal Impedance Model
ZΘ
jc Double side cooled
Θ
jc
(t) =
Σ(A(
N
)•(1-exp(-t/
Tau
(
N
))))
where:
N =
12 3 4
A(N
) =
1.13E-04 7.51E-04 3.53E-03 5.61E-03
T
au(N) =
6.54E-04 1.48E-02 1.89E-01 1.20E+00
Page 3 of 4
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PRX C770__
Fast Switching Thyristo
r
Powerex, Inc., 173 Pavilion Lane, Youngwood, PA 15697-1800 724-925-7272 WWW.PWRX.COM
2100 Amperes 1800 Volts
0.0
1.0
2.0
3.0
4.0
5.0
6.0
100 1000 10000 100000
VTM (V)
ITM (A)
Maxi mum On-S tate Volta ge Drop
Tj = 125°C
0.0E+00
2.0E-03
4.0E-03
6.0E-03
8.0E-03
1.0E-02
1.2E-02
0.001 0.01 0.1 1 10
Thermal Impedance (°C/Watt)
Time (sec)
MAXIMUM TRANSIENT THERMAL
IMPEDANCE
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