Date:- 12 Jul, 2004
WESTCODE
An IXYS Company
Soft Recovery Diode
Type M0358WC120 to M0358WC180
Old Type No.: SM12-18CXC100
Absolute Maximum Ratings
VOLTAGE RATINGS
V
RRM
V
RSM
I
F(AV)M
I
F(AV)M
I
F(AV)M
I
F(RMS)
I
F(d.c.)
I
FSM
I
FSM2
I2tI
I2t
T
j op
T
stg
Repetitive peak reverse voltage, (note 1) 1200-1800 V
Non-repetitive peak reverse voltage, (note 1) 1300-1900 V
OTHER RATINGS
Maximum average forward current, T
Maximum average forward current. T
Maximum average forward. T
Nominal RMS forward current, T
D.C. forward current, T
Peak non-repetitive surge tp=10ms, VRM=60%V
Peak non-repetitive surge tp=10ms, VRM≤10V, (note 5)
2
t capacity for fusing tp=10ms, VRM=60%V
2
I
t capacity for fusing tp=10ms, VRM≤10V, (note 5)
Operating temperature range -40 to +125 °C
Storage temperature range -40 to +125 °C
sink
=100°C, (note 3) 85 A
sink
=25°C, (note 4) 578 A
=55°C, (note 2) 358 A
sink
=100°C, (note 2) 157 A
sink
=25°C, (note 2) 732 A
sink
, (note 5) 2450 A
RRM
, (note 5) 30.0×10
RRM
Data Sheet Issue:- 1
MAXIMUM
LIMITS
MAXIMUM
LIMITS
2695 A
3
36.3×10
3
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
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 1 of 11 July, 2004
initial.
j
below 25°C.
j
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Characteristics
PARAMETER MIN. TYP. MAX. TEST CONDITIONS (Note 1) UNITS
V
V
r
V
I
Q
Q
I
t
R
FM
T0
T
FRM
RRM
rr
ra
rm
rr
thJK
Maximum peak forward voltage
Threshold voltage - - 1.46 V
Slope resistance - - 0.80
Maximum forward recovery voltage
Peak reverse current - - 20 Rated V
Recovered charge - 125 - µC
Recovered charge, 50% Chord - 65 90 µC
Reverse recovery current - 80 - A
Reverse recovery time, 50% Chord - 1.4 -
Thermal resistance, junction to heatsink
- - 1.97 IFM=635A
--2.1I
=750A
FM
- - 35 di/dt = 1000A/µs, 25°C
- - 80 di/dt = 1000A/µs
RRM
I
=1000A, tp=500µs, di/dt=100A/µs,
FM
V
=50V, 50% Chord.
r
- - 0.09 Double side cooled
- - 0.18 Single side cooled
V
mΩ
V
mA
µs
K/W
F Mounting force 3.3 - 5.5 kN
W
Weight - 70 - g
t
Notes:-
1) Unless otherwise indicated T
=125°C.
j
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 2 of 11 July, 2004
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Notes on Ratings and Characteristics
1.0 Voltage Grade Table Voltage Grade V
12 1200 1300 820
14 1400 1500 930
16 1600 1700 1040
18 1800 1900 1150
2.0 De-rating Factor
A blocking voltage de-rating factor of 0.13% per °C is applicable to this device for Tj below 25°C.
3.0 ABCD Constants
These constants (applicable only over current range of VF characteristic in Figure 1) are the coefficients of
the expression for the forward characteristic given below:
where IF = instantaneous forward current.
4.0 Reverse recovery ratings
(i) Qra is based on 50% Irm chord as shown in Fig.(a) below.
RRM
(V)
V
RSM
(V)
IDICIBAV ⋅+⋅+⋅+= )ln(
FFFF
V
dc
R
(V)
(ii) Qrr is based on a 150µs integration time.
s
µ
150
I.e.
(iii)
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 3 of 11 July, 2004
=
FactorK =
dtiQ
.
rrrr
∫
0
t
1
t
2
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f
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5.0 Reverse Recovery Loss
The following procedure is recommended for use where it is necessary to include reverse recovery loss.
From waveforms of recovery current obtained from a high frequency shunt (see Note 1) 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 sink temperature can then be evaluated
from:
)(
Where k = 0.2314 (°C/W)/s
E
= Area under reverse loss waveform per pulse in joules (W.s.)
= Rated frequency in Hz at the original sink temperature.
R
= d.c. thermal resistance (°C/W)
thJK
The total dissipation is now given by:
originaltot
NOTE 1 - Reverse Recovery Loss by Measurement
This device has a low reverse recovered charge and peak reverse recovery current. When measuring the
charge, care must be taken to ensure that:
(a) AC 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:
)()(
[]
fEWW
⋅+=
RfkETT ⋅+⋅−=
thJKMAXJSINK
2
R
Where: Vr= Commutating source voltage
6.0 Snubber Components When selecting snubber components, care m ust be taken not to us e excessively large values of snubber
capacitor or excessively sm all values of snubber re sistor. Such exc essive com ponent values may lead to
device damage due to the large resultant values of snubber dis charge current. If required, please cons ult
the factory for assistance.
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 4 of 11 July, 2004
V
⋅= 4
C
R = Snubber resistance
r
di
C
⋅
dt
S
= Snubber capacitance
S
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7.0 Computer Modelling Parameters
7.1 Device Dissipation Calculations
I
=
AV
00
2
Where VT0 =1.46V, rT = 0.8mΩ
4
2
2
rff
⋅⋅
T
WrffVV
⋅⋅⋅++−
AVTTT
ff = form factor (normally unity for fast diode applications)
∆
T
W
The forward characteristic I
(i) the well established V
((iiii))
=
AV
a set of constants A, B, C, and D forming the coefficients of the representative equation for V
R
th
TTT
−=∆
)(
7.2 Calculation of V
terms of I
given below:
F
KMAXj
using ABCD Coefficients
F
Vs VF, on page 6 is represented in two ways;
F
and rT tangent used for rating purposes and
T0
IDICIBAV ⋅+⋅+⋅+= )ln(
FFFF
in
F
The constants, derived by curve fitting software, are given in this report for hot characteristics. The
resulting values for V
that plotted.
8.0 Frequency Ratings The curves illustrated in figures 8 to 16 are for guidance only and are superseded by the maxim um ratings
shown on page 1.
9.0 Square wave ratings These ratings are given for load component rate of rise of forward current of 100 and 500 A/µs.
10.0 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.
agree with the true device characteristic over a current range, which is limited to
F
25°C Coefficients 125°C Coefficients
A
B
C
D
0.04024108 -0.873541163
0.3593347 0.5784799
6.9923×10
-0.03048276 -0.0590576
-4
9.91536×10
-4
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 5 of 11 July, 2004
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Curves
Figure 1 – Forward characteristics of Limit device Figure 2 – Maximum forward recovery voltage
(A)
FM
10000
1000
M0358WC120-180
Issue 1
125°C25°C
(V)
FRM
1000
100
M0358WC120-180
Issue 1
125°C
25°C
Instantaneous forward current - I
100
012345
Maximum instantaneous forward voltage - V
Figure 3 - Recovered charge, Q
1000
M0358WC120-180
Issue 1
Tj = 125°C
(µC)
rr
100
10
Maximum forward recovery voltage - V
1
(V)
FM
rr
1500A
1000A
500A
300A
Figure 4 - Recovered charge, Qra (50% chord)
10 100 1000 10000
Rate of rise of forward current - di/dt (A/µs)
1000
M0358WC120-180
Issue 1
Tj = 125°C
(µC)
ra
100
1500A
1000A
500A
300A
Total recovered charge - Q
10
1 10 100 1000
Commutation rate - di/dt (A/µs)
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 6 of 11 July, 2004
Recovered charge - Q
10
1 10 100 1000
Commutation rate - di/dt (A/µs)
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Figure 5 - Maximum reverse current, I
1000
M0358WC120-180
Issue 1
Tj = 125°C
100
(A)
rm
10
Reverse recovery current - I
1
1 10 100 1000
Commutation rate - di/dt (A/µs)
rm
1500A
1000A
500A
300A
Figure 6 - Maximum recovery time, trr (50% chord)
10
M0358WC120-180
Issue 1
Tj = 125°C
(µs)
rr
Recovery time - t
1500A
1000A
500A
300A
1
1 10 100 1000
Commutation rate - di/dt (A/µs)
Figure 7 – Reverse recovery energy per pulse Figure 8 - Sine wave energy per pulse
1000
M0358WC120-180
Issue 1
Tj = 125°C
=67% V
V
r
RRM
Ω
0.1µF, 10
Snubber
(mJ)
r
100
Energy per pulse - E
10
1 10 100 1000
Commmutation rate - di/dt (A/µs)
1000A
500A
250A
125A
500A
1.00E+02
1.00E+01
1.00E+00
Energy per pulse (J)
1.00E-01
1.00E-02
M0358WC120-180
Issue 1
Tj = 125°C
3000A
2000A
1000A
500A
250A
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 7 of 11 July, 2004
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Figure 9 - Sine wave frequency vs. pulse width Figure 10 - Sine wave frequency vs. pulse width
1.00E+05
1.00E+04
250A
500A
1000A
M0358WC120-180
Issue 1
100% Duty Cycle
TK = 55°C
1.00E+05
1.00E+04
250A
500A
M0358WC120-180
100% Duty Cycle
Issue 1
TK = 85°C
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
2000A
3000A
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
1000A
2000A
3000A
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
Figure 11 - Square wave energy per pulse Figure 12 - Square wave energy per pulse
1.00E+03
1.00E+02
1.00E+01
M0358WC120-180
Issue 1
di/dt =100A/µs
Tj = 125°C
1.00E+03
1.00E+02
1.00E+01
M0358WC120-180
Issue 1
di/dt =500A/µs
Tj = 125°C
3000A
2000A
1000A
500A
250A
3000A
1.00E+00
Energy per pulse (J)
1.00E-01
1.00E-02
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 8 of 11 July, 2004
2000A
1000A
500A
250A
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
1.00E+00
Energy per pulse (J)
1.00E-01
1.00E-02
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
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Figure 13 - Square wave frequency vs. pulse width Figure 14 - Square wave frequency vs. pulse width
1.00E+05
1.00E+04
250A
500A
1000A
M0358WC120-180
Issue 1
di/dt =100A/µs
100% Duty Cycle
TK=55°C
1.00E+05
1.00E+04
250A
500A
M0358WC120-180
di/dt =500A/µs
100% Duty Cycle
Issue 1
TK = 55°C
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02
2000A
3000A
Pulse width (s)
1.00E+03
Frequency (Hz)
1.00E+02
1.00E+01
1000A
2000A
3000A
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s)
Figure 15 - Square wave frequency vs. pulse width Figure 16 - Square wave frequency vs. pulse width
1.00E+05
1.00E+04
1.00E+03
Frequency (Hz)
250A
500A
1000A
2000A
M0358WC120-180
Issue 1
di/dt =100A/µs
TK = 85°C
100% Duty Cycle
1.00E+05
1.00E+04
1.00E+03
Frequency (Hz)
250A
500A
1000A
M0358WC120-180
Issue 1
di/dt =500A/µs
TK = 85°C
100% Duty Cycle
1.00E+02
1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 9 of 11 July, 2004
3000A
Pulse width (s)
1.00E+02
1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02
2000A
Pulse width (s)
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Figure 17 – Maximum surge and I2t ratings
10000
(A)
FSM
1000
Total peak half sine surge current - I
100
I2t: V
I2t: VR=60% V
I
: V
FSM
I
: VR=60% V
FSM
Tj (initial) = 125°C
M0358WC120-180
1 3 5 10 1 5 10 50 100
Duration of surge (ms) Duration of surge (cycles @ 50Hz)
≤
RRM
RRM
Issue 1
10V
10V
≤
RRM
RRM
1.00E+06
1.00E+05
1.00E+04
2
2
s)
t (A
Maximum I
Figure 18 – Transient thermal impedance
1
M0358WC120-180
Issue 1
0.1
0.01
Thermal impedance (K/W)
0.001
0.0001
0.0001 0.001 0.01 0.1 1 10 100
SSC 0.18K/W
DSC 0.09K/W
Time (s)
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 10 of 11 July, 2004
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Outline Drawing & Ordering Information
ORDERING INFORMATION (Please quote 10 digit code as bel ow)
M0358 WC
Fixed
Type Code
Order code: M0358WC160 – 1600V V
IXYS Semiconductor GmbH
Edisonstraße 15
D-68623 Lampertheim
Tel: +49 6206 503-0
Fax: +49 6206 503-627
E-mail: marcom@ixys.de
IXYS Corporation
3540 Bassett Street
Santa Clara CA 95054 USA
Tel: +1 (408) 982 0700
Fax: +1 (408) 496 0670
E-mail: sales@ixys.net
The information contained herein is confidential and is protected by Copyright. The information 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/letter combination) added to their generic code are not necessarily
subject to the conditions and limits contained in this report.
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An IXYS Company
Fixed
outline code
, 14.4mm clamp height capsule.
RRM
www.westcode.com
www.ixys.com
Voltage code
/100
V
RRM
12-18
0
Fixed code
Westcode Semiconductors Ltd
Langley Park Way, Langl ey Park,
Chippenham, Wi l tshire SN15 1GE.
Tel: +44 (0)1249 444524
Fax: +44 (0)1249 659448
E-mail: WSL.sales@westcode.com
Westcode Semiconductors Inc
3270 Cherry Avenue
Long Beach CA 90807 USA
Tel: +1 (562) 595 6971
Fax: +1 (562) 595 8182
E-mail: WSI.sales@westcode.com
© Westcode Semiconductors Ltd.
Data Sheet. Types M0358WC120 to M0358WC180 Issue 1 Page 11 of 11 July, 2004
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