WESTCODE

Date:- 21 Jun, 2001

Data Sheet Issue:- 1

Distributed Gate Thyristor

Types R0577YS10x to R0577YS12x

Absolute Maximum Ratings

VDRM

VDSM

VRRM

VRSM

VOLTAGE RATINGS

Repetitive peak off-state voltage, (note 1)

Non-repetitive peak off-state voltage, (note 1)

Repetitive peak reverse voltage, (note 1)

Non-repetitive peak reverse voltage, (note 1)

MAXIMUM

LIMITS

1000-1200

1000-1200

1000-1200

1100-1300

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, VRM≤10V, (note 5)

I2t capacity for fusing tp=10ms, VRM=0.6VRRM, (note 5)

I2t capacity for fusing tp=10ms, VRM≤10V, (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, tr≤0.5µs, Tcase=125°C.

7) Rated VDRM.

MAXIMUM

LIMITS

577

379

216

1169

712

6.0

6.6

180

218

1000

1500

5

2

30

0.25

-40 to +125

-40 to +150

UNITS

A

A

A

A

A

kA

kA

kA2s

kA2s

A/µs

A/µs

V

W

W

V

°C

°C

Data Sheet. Types R0577YS10x to R0577YS12x Issue 1

Page 1 of 12

June, 2001

1 Page

WESTCODE Positive development in power electronics

R0577YS10x to R0577YS12x

Notes on Ratings and Characteristics

1.0 Voltage Grade Table

Voltage Grade

10

12

VDRM VDSM

VRRM

1000

1200

VRSM

V

1100

1300

VR

DC V

700

810

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 500A/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 R0577YS10x to R0577YS12x Issue 1

Page 3 of 12

June, 2001

3Pages

WESTCODE Positive development in power electronics

14.0 Computer Modelling Parameters

R0577YS10x to R0577YS12x

14.1 Calculating VT using ABCD Coefficients

The on-state characteristic IT vs VT, on page 7 is represented in two ways;

(i) the well established Vo and rs tangent used for rating purposes and

(ii) a set of constants A, B, C, D, forming the coefficients of the representative equation for VT in

terms of IT given below:

VT = A + B ⋅ ln(IT )+ C ⋅ IT + D ⋅ IT

The constants, derived by curve fitting software, are given in this report for hot and cold characteristics

where possible. The resulting values for VT agree with the true device characteristic over a current range,

which is limited to that plotted.

25°C Coefficients

A 2.201514

B 0.08313135

C 7.0155×10-4

D -0.0251939

125°C Coefficients

1.317665

0.02417939

5.9821×10-4

0.00217881

14.2 D.C. Thermal Impedance Calculation

∑rt

=

p=n

rp

p =1

⋅

1

−

−t

eτ p

Where p = 1 to n, n is the number of terms in the series.

t = Duration of heating pulse in seconds.

rt = Thermal resistance at time t.

rp = Amplitude of pth term.

τp = Time Constant of rth term.

Term

rp

τp

1

0.0200056

0.3391689

D.C. Double Side Cooled

2

9.923438×10-3

0.1269073

3

0.01433715

0.03562131

4

4.284403×10-3

2.562946×10-3

Term

rp

τp

1

0.06157697

2.136132

D.C. Single Side Cooled

2

8.431182×10-3

3

0.01031315

1.212898

0.1512408

4

0.01613806

0.04244

5

5.181088×10-3

2.889595×10-3

Data Sheet. Types R0577YS10x to R0577YS12x Issue 1

Page 6 of 12

June, 2001

6 Page