Maximum rate of rise of on-state current (repetitive) (Note 6)500A/µs
Maximum rate of rise of on-state current (non-repetitive) (Note 6)1000A/µs
Peak reverse gate voltage5V
Mean forward gate power4W
Peak forward gate power50W
Non-trigger gate voltage (Note 7)0.25V
Operating temperature range-40 to +125°C
Storage temperature range-40 to +150°C
=55°C (note 2)3636A
sink
=85°C (note 2)2501A
sink
=85°C (note 3)1518A
sink
=25°C (note 2)7168A
sink
(note 5)38.9kA
RRM
(note 5)7.57×10
RRM
Data Sheet Issue:- 1
MAXIMUM
LIMITS
MAXIMUM
LIMITS
42.7kA
6
9.12×10
6
UNITS
UNITS
A2s
A2s
Notes:-
1) De-rating factor of 0.13% per °C is applicable for T
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 T
6) V
=67% V
D
7) Rated V
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 1 of 12March, 2007
, IFG=2A, tr≤0.5µs, T
DRM
.
DRM
initial.
j
case
=125°C.
below 25°C.
j
Page 2
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Characteristics
PARAMETERMIN.TYP.MAX. TEST CONDITIONS (Note 1)UNITS
V
Maximum peak on-state voltage--1.95ITM=5000AV
TM
V
Maximum peak on-state voltage--2.86ITM=10700AV
TM
V
Threshold voltage--1.173V
0
r
Slope resistance--0.155
S
dv/dtCritical rate of rise of off-state voltage200--VD=80% V
I
Peak off-state current-60300Rated V
DRM
I
Peak reverse current--300Rated V
RRM
V
Gate trigger voltage--3.0V
GT
I
Gate trigger current--600
GT
V
Gate non-trigger voltage--0.25Rated V
GD
I
Holding current--1000Tj=25°CmA
H
t
Gate-controlled turn-on delay time-0.81.5
gd
t
Turn-on time-1.02.0
gt
Q
Recovered charge-1750-µC
rr
Q
Recovered charge, 50% chord-7501500µC
ra
I
Reverse recovery current-220-A
rm
t
Reverse recovery time, 50% chord-7.5-
rr
--140
t
Turn-off time
q
60-200
R
Thermal resistance, junction to heatsink
thJK
--0.0075 Double side cooledK/W
--0.0150 Single side cooledK/W
=25°CVD=10V, IT=3A
T
j
=67% V
V
D
I
=2A, tr=0.5µs, Tj=25°C
FG
I
=4000A, tp=2000µs, di/dt=60A/µs,
TM
V
=100V
r
ITM=4000A, tp=2000µs, di/dt=60A/µs,
V
=100V, Vdr=67%V
r
ITM=4000A, tp=2000µs, di/dt=60A/µs,
V
=100V, Vdr=67%V
r
, gate o/c, linear ramp
DRM
DRM
RRM
DRM
, IT=2000A, di/dt=60A/µs,
DRM
, dVdr/dt=20V/µs
DRM
, dVdr/dt=200V/µs
DRM
FMounting force63-77kN
W
Weight-1.23-kg
t
mΩ
V/µs
mA
mA
mA
µs
µs
µs
Notes:-
1) Unless otherwise indicated T
2) The required t
details of t
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 2 of 12March, 2007
(specified with dVdr/dt=200V/µs) is represented by a ‘#’ in the device part number. See ordering information for
q
codes.
q
=125°C.
j
Page 3
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
V
Voltage Grade
16160017001040
18180019001150
20200021001250
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
DRM VDSM VRRM
V
V
RSM
V
V
D VR
DC V
The maximum un-primed rate of rise of on-state current must not exceed 1000A/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 500A/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
) and for the off-state voltage to reach full value (tv), i.e.
(t
q
1
max
f
=
vqpulsettt
++
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 3 of 12March, 2007
Page 4
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
10.0 On-State Energy per Pulse Characteristics
These curves enable rapid estimation of device dissipation to be obtained for conditions not covered by
the frequency ratings.
be the Energy per pulse for a given current and pulse width, in joules
Let E
p
Let R
and T
Then the average dissipation will be:
be the steady-state d.c. thermal resistance (junction to sink)
thJK
be the heat sink temperature.
K
11.0 Reverse recovery ratings
(i) Qra is based on 50% Irm chord as shown in Fig. 1 below.
is based on a 150µs integration time.
(ii) Q
rr
i.e.
(iii)
12.0 Reverse Recovery Loss
.)(max
µ
150
=
∫
0
FactorK=
()
Fig. 1
s
dtiQ
.
rrrr
t
1
t
2
RWTfEW⋅−=⋅=125 and
thJKAVKPAV
12.1 Determination by Measurement
From waveforms of recovery current obtained from a high frequency shunt (see Note 1, Page 5) and
reverse voltage present during recovery, an instantaneous reverse recovery loss waveform must be
constructed. Let the area under this waveform be E joules per pulse. A new heat sink temperature can
then be evaluated from:
)()(
where k = 0.227 (°C/W)/s
E = Area under reverse loss waveform per pulse in joules (W.s.)
f = rated frequency Hz at the original heat sink temperature.
= d.c. thermal resistance (°C/W).
R
thJK
The total dissipation is now given by:
fEWW
(original)(TOT)
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 4 of 12March, 2007
⋅+=
()
RfkETT⋅+⋅−=
thJKoriginalKnewK
Page 5
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
12.2 Determination without Measurement
In circumstances where it is not possible to measure voltage and current conditions, or for design
purposes, the additional losses E in joules may be estimated as follows.
Let E be the value of energy per reverse cycle in joules (curves in Figure 9).
Let f be the operating frequency in Hz
()( )
Where T
T
K (original)
A suitable R-C snubber network is connected across the thyristor to restrict the transient reverse voltage
to a peak value (V
67% of Grade, the reverse loss may be approximated by a pro rata adjustment of the maximum value
obtained from the curves.
NOTE 1- Reverse Recovery Loss by Measurement
This thyristor has a low reverse recovered charge and peak reverse recovery current. W hen measuring
the charge care must be taken to ensure that:
(a) a.c. coupled devices such as current transformers are not affected by prior passage of high
amplitude forward current.
(b) A suitable, polarised, clipping circuit must be connected to the input of the measuring oscilloscope
to avoid overloading the internal amplifiers by the relatively high amplitude forward current signal
(c) Measurement of reverse recovery waveform should be carried out with an appropriate critically
damped snubber, connected across diode anode to cathode. The formula used for the calculation
of this snubber is shown below:
2
R
Where: Vr= Commutating source voltage
⋅= 4
C
S
C
= Snubber capacitance
S
R= Snubber resistance
is the required maximum heat sink temperature and
K (new)
is the heat sink temperature given with the frequency ratings.
) of 67% of the maximum grade. If a different grade is being used or Vrm is other than
rm
V
r
di
⋅
dt
()
fRETT
⋅⋅−=
thoriginalKnewK
13.0 Gate Drive
The nominal requirement for a typical gate drive is illustrated below. An open circuit voltage of at least 30V
is assumed. This gate drive must be applied when using the full di/dt capability of the device.
I
GM
4A/µs
I
G
t
p1
The magnitude of IGM should be between five and ten times IGT, which is shown on page 2. Its duration
) should be 20µs or sufficient to allow the anode current to reach ten times IL, whichever is greater.
(t
p1
Otherwise, an increase in pulse current could be needed to supply the necessary charge to trigger. The
‘back-porch’ current I
magnitude in the order of 1.5 times I
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 5 of 12March, 2007
should remain flowing for the same duration as the anode current and have a
G
GT
.
Page 6
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
p
p
14.0 Computer Modelling Parameters
14.1 Calculating VT using ABCD Coefficients
The on-state characteristic I
(i) the well established V
(ii) a set of constants A, B, C, D, forming the coefficients of the representative equation for V
terms of I
The constants, derived by curve fitting software, are given in this report for hot and cold characteristics
where possible. The resulting values for V
which is limited to that plotted.
14.2 D.C. Thermal Impedance Calculation
given below:
T
vs VT, on page 7 is represented in two ways;
T
and rs tangent used for rating purposes and
0
()
agree with the true device characteristic over a current range,
T
25°C Coefficients125°C Coefficients
A1.699211A3.102332103
B0.04818511B-0.4078209
C2.075468×10
D-0.01660626D0.03250304
-4
=
∑
=
p
C4.569058×10
−
np
1
pt
1
t
τ
p
−⋅=
err
in
T
IDICIBAV⋅+⋅+⋅+=ln
TTTT
-6
Where p = 1 to n, n is the number of terms in the series.
t = Duration of heating pulse in seconds.
r
= Thermal resistance at time t.
t
r
= Amplitude of pth term.
= Time Constant of rth term.
τ
D.C. Double Side Cooled
Term
r
p
τ
p
Term
r
p
τ
p
8.727296×10
6.0874991.577970.17305040.01784783
123
3.589585×10
0.80821310.18320050.01869883
1234
-3
D.C. Single Side Cooled
-3
2.224163×10
2.412881×10
-3
-3
2.795381×10
-3
1.447505×10
1.378979×10
-3
-3
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 6 of 12March, 2007
Page 7
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 7 of 12March, 2007
(A)
GT
4
PG 4W dc
Min VG dc
2
0
0246810
Gate Trigger Current - I
(A)
GT
Page 8
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Figure 5 – Total recovered charge, Q
10000
R3636EC16#-20#
Issue 1
Tj = 125°C
(µC)
rr
1000
Total recovered charge - Q
100
101001000
Commutation rate - di/dt (A/µs)
rr
5000A
3000A
2000A
1000A
Figure 6 – Recovered charge, Qra (50% chord)
10000
R3636EC16#-20#
Issue 1
Tj = 125°C
5000A
3000A
2000A
(µC)
ra
1000
Recovered charge, 50% chord - Q
100
101001000
Commutation rate - di/dt (A/µs)
1000A
Figure 7 – Peak reverse recovery current, I
10000
R3636EC16#-20#
Issue 1
Tj = 125°C
5000A
1000
(A)
rm
100
Reverse recovery current - I
10
101001000
Commutation rate - di/dt (A/µs)
3000A
2000A
1000A
rm
Figure 8 – Maximum recovery time, trr (50% chord)
100
R3636EC16#-20#
Issue 1
Tj = 125°C
(µs)
rr
10
5000A
3000A
2000A
1000A
Reverse recovery time, 50% chord - t
1
101001000
Commutation rate - di/dt (A/µs)
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 8 of 12March, 2007
Page 9
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Figure 9 – Reverse Recovery EnergyFigure 10 – Sine wave energy per pulse
(J)
10
r
1
R3636EC16#-20#
Issue 1
Tj = 125°C
V
= 400V
r
Measured
without
snubber
4000A
3000A
2000A
1000A
1.00E+02
1.00E+01
1.00E+00
R3636EC16#-20#
Issue 1
Tj=125°C
6kA
4kA
2kA
1kA
500A
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Reverse energy per pulse - E
0.1
101001000
Commutation rate - di/dt (A/µs)
Energy per pulse (J)
1.00E-01
1.00E-02
Figure 11 – Sine wave frequency ratingsFigure 12 – Sine wave frequency ratings
1.00E+05
1.00E+04
1kA
2kA
100% Duty Cycle
R3636EC16#-20#
Issue 1
TK=55°C
1.00E+05
1.00E+04
R3636EC16#-20#
1kA
100% Duty Cycle
2kA
Issue 1
TK=85°C
1.00E+03
Frequency (Hz)
1.00E+03
1.00E+02
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 9 of 12March, 2007
4kA
6kA
1.00E-051.00E-041.00E-031.00E-02
Pulse Width (s)
Frequency (Hz)
1.00E+02
1.00E+01
4kA
6kA
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Page 10
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Figure 13 – Square wave frequency ratingsFigure 14 – Square wave frequency ratings
1.00E+05
1.00E+04
1.00E+03
2kA
4kA
6kA
R3636EC16#-20#
Issue 1
di/dt=100A/µs
TK=55°C
100% Duty Cycle
1.00E+05
1.00E+04
1.00E+03
1kA
2kA
4kA
6kA
R3636EC16#-20#
Issue 1
di/dt=500A/µs
TK=55°C
100% Duty Cycle
Frequency (Hz)
1.00E+02
1.00E+01
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Frequency (Hz)
1.00E+02
1.00E+01
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Figure 15 – Square wave frequency ratingsFigure 16 – Square wave frequency ratings
1.00E+05
1.00E+04
1kA
2kA
R3636EC16#-20#
Issue 1
di/dt=100A/µs
TK=85°C
100% Duty Cycle
1.00E+05
1.00E+04
500A
1kA
2kA
R3636EC16#-20#
Issue 1
di/dt=500A/µs
100% Duty Cycle
TK=85°C
4kA
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
1.00E-051.00E-041.00E-031.00E-02
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 10 of 12March, 2007
6kA
Pulse width (s)
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
4kA
6kA
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Page 11
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Figure 17 – Square wave energy per pulseFigure 18 – Square wave energy per pulse
1.00E+03
R3636EC16#-20#
Issue 1
di/dt=100A/µs
Tj=125°C
1.00E+03
R3636EC16#-20#
Issue 1
di/dt=500A/µs
Tj=125°C
1.00E+02
1.00E+01
6kA
4kA
Energy per pulse (J)
1.00E+00
2kA
1.00E-01
1.00E-02
1kA
500A
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
Figure 19 – Maximum surge and I2t Ratings
1000000
(A)
TSM
R3636EC16#-20#
Issue 1
Tj (initial) = 125°C
Gate may temporarily lose control of conduction angle
1.00E+02
1.00E+01
6kA
4kA
Energy per pulse (J)
1.00E+00
2kA
1kA
1.00E-01
500A
1.00E-02
1.00E-051.00E-041.00E-031.00E-02
Pulse width (s)
I2t: V
≤10V
RRM
I2t: 60% V
RRM
1.00E+08
100000
Total peak half sine surge current - I
10000
I
TSM
: 60% V
RRM
I
TSM
: V
RRM
≤10V
1.00E+07
1.00E+06
13510151050100
Duration of surge (ms)
Data Sheet. Types R3636EC16# to R3636EC20# Issue 1Page 11 of 12March, 2007
Duration of surge (cycles @ 50Hz)
s)
2
t (A
2
Maximum I
Page 12
WESTCODE An IXYS CompanyDistributed Gate Thyristor Types R3636EC16# to R3636EC20#
Outline Drawing & Ordering Information
101A352
ORDERING INFORMATION(Please quote 10 digit code as below)
R3636EC
Fixed
Type Code
Typical order code: R3636EC18N – 1800V V
Fixed
Outline Code
DSM
, V
, 100µs tq, 26.5mm clamp height capsule.
RSM
Voltage code
V
/100
DRM
16-20
K=60µs, L=65µs, M=70µs, N=100µs,
P=120µs, R=140µs, S=160µs, T=200µs
WESTCODE
The information contained herein is confidential and is protected by Copyright. The i nformation may not be used or disclosed except
with the written permission of and in the manner permitted by the proprietors Westcode Semiconductors Ltd.
In the interest of product improvement, Westcode reserves the right to change specifications at any time without prior notice.
Devices with a suffix code (2-letter, 3-letter or letter/digit/l etter combination) added to their generic code are not necessarily subject to
the conditions and limits contained in this report.