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Date:- 5 Apr, 2001
Data Sheet Issue:- 1
Distributed Gate Thyristor
Types R0990LS06 to R0990LS08
Absolute Maximum Ratings
VDRM
VDSM
VRRM
VRSM
VOLTAGE RATINGS (note 1)
Repetitive peak off-state voltage
Non-repetitive peak off-state voltage
Repetitive peak reverse voltage
Non-repetitive peak reverse voltage
MAXIMUM
LIMITS
600-800
600-800
600-800
700-900
UNITS
V
V
V
V
IT(AV)
IT(AV)
IT(AV)
IT(RMS)
IT(d.c.)
ITSM
ITSM2
I2t
I2t
diT/dt
VRGM
PG(AV)
PGM
VGD
THS
Tstg
OTHER RATINGS
Mean on-state current, Tsink=55°C, (note 2)
Mean on-state current. Tsink=85°C, (note 2)
Mean on-state current. Tsink=85°C, (note 3)
Nominal RMS on-state current, Tsink=25°C, (note 2)
D.C. on-state current, Tsink=25°C, (note 4)
Peak non-repetitive surge tp=10ms, VRM=0.6VRRM, (note 5)
Peak non-repetitive surge tp=10ms, VRM10V, (note 5)
I2t capacity for fusing tp=10ms, VRM=0.6VRRM, (note 5)
I2t capacity for fusing tp=10ms, VRM10V, (note 5)
Maximum rate of rise of on-state current (repetitive), (Note 6)
Maximum rate of rise of on-state current (non-repetitive), (Note 6)
Peak reverse gate voltage
Mean forward gate power
Peak forward gate power
Non-trigger gate voltage, (Note 7)
Operating temperature range
Storage temperature range
Notes:-
1) De-rating factor of 0.13% per °C is applicable for Tj below 25°C.
2) Double side cooled, single phase; 50Hz, 180° half-sinewave.
3) Single side cooled, single phase; 50Hz, 180° half-sinewave.
4) Double side cooled.
5) Half-sinewave, 125°C Tj initial.
6) VD=67% VDRM, IFG=2A, tr0.5µs, Tcase=125°C.
7) Rated VDRM.
MAXIMUM
LIMITS
990
652
373
2001
1627
11
12
6.05×105
7.20×105
1000
1500
5
2
30
0.25
-40 to +125
-40 to +150
UNITS
A
A
A
A
A
kA
kA
A2s
A2s
A/µs
A/µs
V
W
W
V
°C
°C
Data Sheet. Types R0990LS06x to R0990LS08x Issue 1
Page 1 of 12
April, 2001

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WESTCODE Positive development in power electronics
Characteristics
R0990LS06 to R0990LS08
PARAMETER
MIN. TYP. MAX. TEST CONDITIONS (Note 1)
VTM Maximum peak on-state voltage
- - 1.84 ITM=1400A
V0 Threshold voltage
- - 1.35
rS Slope resistance
- - 0.35
dv/dt Critical rate of rise of off-state voltage
200 -
- VD=80% VDRM, linear ramp
IDRM Peak off-state current
- - 70 Rated VDRM
IRRM Peak reverse current
- - 70 Rated VRRM
VGT Gate trigger voltage
IGT Gate trigger current
- - 3.0
Tj=25°C
- - 300
VD=10V, IT=3A
IH Holding current
- - 1000 Tj=25°C
tgd Gate controlled turn-on delay time
tgt Turn-on time
- 0.4 1.0 VD=67% VDRM, ITM=1500A, di/dt=60A/µs,
- 1.0 2.0 IFG=2A, tr=0.5µs, Tj=25°C
Qrr Recovered charge
- 90 105
Qra Recovered charge, 50% Chord
Irm Reverse recovery current
- 40 50 ITM=1000A, tp=1000µs, di/dt=60A/µs,
- 55 75 Vr=50V
trr Reverse recovery time
- 1.55 2.20
tq Turn-off time (note 2)
-
-
10
ITM=1000A, tp=1000µs, di/dt=60A/µs,
Vr=50V, Vdr=67%VDRM, dVdr/dt=20V/µs
10
-
15
ITM=1000A, tp=1000µs, di/dt=60A/µs,
Vr=50V, Vdr=67%VDRM, dVdr/dt=200V/µs
Rth(j-hs) Thermal resistance, junction to heatsink
-
-
- 0.032 Double side cooled
- 0.064 Single side cooled
F Mounting force
10 - 20
Wt Weight
- 340 -
UNITS
V
V
m
V/µs
mA
mA
V
mA
mA
µs
µC
µC
A
µs
µs
K/W
K/W
kN
g
Notes:-
1) Unless otherwise indicated Tj=125°C.
2) The required tq (specified with dVdr/dt=200V/µs) is represented by an ‘x’ in the device part number. See ordering information
for details of tq codes.
Data Sheet. Types R0990LS06x to R0990LS08x Issue 1
Page 2 of 12
April, 2001

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WESTCODE Positive development in power electronics
R0990LS06 to R0990LS08
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
06
08
VDRM VDSM VRRM
V
600
800
VRSM
V
700
900
VD VR
DC V
420
560
2.0 Extension of Voltage Grades
This report is applicable to other and higher voltage grades when supply has been agreed by
Sales/Production.
3.0 Extension of Turn-off Time
This Report is applicable to other tq/re-applied dv/dt combinations when supply has been agreed by
Sales/Production.
4.0 Repetitive dv/dt
Higher dv/dt selections are available up to 1000V/µs on request.
5.0 De-rating Factor
A blocking voltage de-rating factor of 0.13%/°C is applicable to this device for Tj below 25°C.
6.0 Rate of rise of on-state current
The maximum un-primed rate of rise of on-state current must not exceed 1500A/µs at any time during
turn-on on a non-repetitive basis. For repetitive performance, the on-state rate of rise of current must not
exceed 1000A/µs at any time during turn-on. Note that these values of rate of rise of current apply to the
total device current including that from any local snubber network.
7.0 Square wave ratings
These ratings are given for load component rate of rise of forward current of 100 and 500 A/µs.
8.0 Duty cycle lines
The 100% duty cycle is represented on all the ratings by a straight line. Other duties can be included as
parallel to the first.
9.0 Maximum Operating Frequency
The maximum operating frequency is set by the on-state duty, the time required for the thyristor to turn off
(tq) and for the off-state voltage to reach full value (tv), i.e.
f max =
1
tpulse + tq + tv
Data Sheet. Types R0990LS06x to R0990LS08x Issue 1
Page 3 of 12
April, 2001