WESTCODE

An IXYS Company
Date:- 23 Jun, 2004

Data Sheet Issue:- 1

Soft Recovery Diode

Type M0859LC140 to M0859LC160
(Old Type No.: SM02-16CXC220)
Absolute Maximum Ratings

MAXIMUM
VOLTAGE RATINGS UNITS
LIMITS
VRRM Repetitive peak reverse voltage, (note 1) 1400-1600 V
VRSM Non-repetitive peak reverse voltage, (note 1) 1500-1700 V

MAXIMUM
OTHER RATINGS UNITS
LIMITS
IF(AV)M Maximum average forward current, Tsink=55°C, (note 2) 859 A
IF(AV)M Maximum average forward current. Tsink=85°C, (note 2) 562 A
IF(AV)M Maximum average forward. Tsink=85°C, (note 3) 319 A
IF(RMS) Nominal RMS forward current, Tsink=25°C, (note 2) 1742 A
If(d.c.) D.C. forward current, Tsink=25°C, (note 4) 1404 A
IFSM Peak non-repetitive surge tp=10ms, VRM=60%VRRM, (note 5) 10 kA
IFSM2 Peak non-repetitive surge tp=10ms, VRM≤10V, (note 5) 11 kA
2 2 3 2
It I t capacity for fusing tp=10ms, VRM=60%VRRM, (note 5) 500×10 As
2 3 2
I t capacity for fusing tp=10ms, VRM≤10V, (note 5)
2
It 605×10 As
Tj op Operating temperature range -40 to +125 °C
Tstg Storage temperature range -40 to +150 °C

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.

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 1 of 11 June, 2004

 WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Characteristics

PARAMETER MIN. TYP. MAX. TEST CONDITIONS (Note 1) UNITS

- - 1.55 IFM=1200A
VFM Maximum peak forward voltage V
- - 1.7 IFM=1750A
VT0 Threshold voltage - - 1.17 V
rT Slope resistance - - 0.32 mΩ
- - 20 di/dt = 1000A/µs, Tj=25°C
VFRM Maximum forward recovery voltage V
- - 30 di/dt = 1000A/µs
IRRM Peak reverse current - - 50 Rated VRRM mA
Qrr Recovered charge - 280 - µC
Qra Recovered charge, 50% Chord - 110 140 IFM=800A, tp=500µs, di/dt=50A/µs, Vr=50V, µC
Irm Reverse recovery current - 75 - 50% Chord. A
trr Reverse recovery time, 50% Chord - 3 - µs
- - 0.044 Double side cooled
RthJK Thermal resistance, junction to heatsink K/W
- - 0.088 Single side cooled
F Mounting force 10 - 20 kN
Wt Weight - 340 - g

Notes:-
1) Unless otherwise indicated Tj=125°C.

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 2 of 11 June, 2004

WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Notes on Ratings and Characteristics

1.0 Voltage Grade Table

Voltage Grade VRRM VRSM VR dc

(V) (V) (V)
14 1400 1500 930
16 1600 1700 1040

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:

VF = A + B ⋅ ln(I F ) + C ⋅ I F + D ⋅ I F
where IF = instantaneous forward current.

4.0 Reverse recovery ratings

(i) Qra is based on 50% Irm chord as shown in Fig.(a) below.

(ii) Qrr is based on a 150µs integration time.

150 µs

I.e.
Qrr = ∫i
0
rr .dt

t1
(iii)
K Factor =
t2

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 3 of 11 June, 2004

WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

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:

TSINK = T j ( MAX ) − E ⋅ [k + f ⋅ RthJK ]

Where k = 0.2314 (°C/W)/s

E = Area under reverse loss waveform per pulse in joules (W.s.)

f = Rated frequency in Hz at the original sink temperature.
Rth(JK) = d.c. thermal resistance (°C/W)

The total dissipation is now given by:

W( tot ) = W( original ) + E ⋅ f
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:

Vr
R2 = 4 ⋅
CS ⋅ di dt
Where: Vr = Commutating source voltage
CS = Snubber capacitance
R = Snubber resistance

6.0 Snubber Components

When selecting snubber components, care must be taken not to use excessively large values of snubber
capacitor or excessively small values of snubber resistor. Such excessive component values may lead to
device damage due to the large resultant values of snubber discharge current. If required, please consult
the factory for assistance.

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 4 of 11 June, 2004

WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

7.0 Computer Modelling Parameters

7.1 Device Dissipation Calculations

− Vo + Vo + 4 ⋅ ff 2 ⋅ rs ⋅ WAV
I AV =
2 ⋅ ff 2 ⋅ rs
Where VT0 = 1.17V, rT = 0.32mΩ
ff = form factor (normally unity for fast diode applications)
∆T
WAV =
Rth
∆T = T j ( MAX ) − Tk
7.2 Calculation of VF using ABCD Coefficients

The forward characteristic IF Vs VF, on page 6 is represented in two ways;

(i) the well established VT0 and rT tangent used for rating purposes and
(ii) a set of constants A, B, C, and D forming the coefficients of the representative equation for VF in
terms of IF given below:

VF = A + B ⋅ ln(I F ) + C ⋅ I F + D ⋅ I F
The constants, derived by curve fitting software, are given in this report for both hot and cold
characteristics. The resulting values for VF agree with the true device characteristic over a current range,
which is limited to that plotted.

25°C Coefficients 125°C Coefficients

A 0.9692108214 A 0.5014768256
B 0.0334639000 B 0.1050145000
-5 -4
C 8.17008×10 C 1.371460×10
-3 -3
D 9.5403280×10 D 4.0237590×10

8.0 Frequency Ratings

The curves illustrated in figures 8 to 16 are for guidance only and are superseded by the maximum 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.

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 5 of 11 June, 2004

WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Curves

Figure 1 – Forward characteristics of Limit device Figure 2 – Maximum forward recovery voltage
10000 100
M0859LC140-160 M0859LC140-160 125°C
Issue 1 Issue 1
25°C

Maximum forward recovery voltage - VFRM (V)

Instantaneous forward current - IFM (A)

125°C 25°C

1000 10

100 1
0 0.5 1 1.5 2 2.5 3 10 100 1000 10000
Maximum instantaneous forward voltage - VFM (V) Rate of rise of forward current - di/dt (A/µs)

Figure 3 - Recovered charge, Qrr Figure 4 - Recovered charge, Qra (50% chord)
10000 1000
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
Tj = 125°C Tj = 125°C

2000A
1500A
800A
400A

2000A
Total recovered charge - Qrr (µC)

1000 1500A
Recovered charge - Q ra (µC)

800A
400A

100

100

10 10
1 10 100 1000 1 10 100 1000
Commutation rate - di/dt (A/µs) Commutation rate - di/dt (A/µs)

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 6 of 11 June, 2004

 WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Figure 5 - Maximum reverse current, Irm Figure 6 - Maximum recovery time, trr (50% chord)
1000 10
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
Tj = 125°C Tj = 125°C

2000A
1500A
800A
400A
Reverse recovery current - I rm (A)

Recovery time - trr (µs)

100

2000A
1500A
800A
400A

10 1
1 10 100 1000 1 10 100 1000
Commutation rate - di/dt (A/µs) Commutation rate - di/dt (A/µs)

Figure 7 – Reverse recovery energy per pulse Figure 8 - Sine wave energy per pulse
1 1.00E+03
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
Tj = 125°C Tj = 125°C
Vr=300V

1.00E+02

2000A

1500A 3000A
2000A
Energy per pulse - Er (J)

800A 1500A
Energy per pulse (J)

1.00E+01
1000A
500A
400A

1.00E+00

1.00E-01

0 1.00E-02
10 100 1000 1.00E-05 1.00E-04 1.00E-03 1.00E-02
Commmutation rate - di/dt (A/µs) Pulse width (s)

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 7 of 11 June, 2004

 WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Figure 9 - Sine wave frequency vs. pulse width Figure 10 - Sine wave frequency vs. pulse width
1.00E+05 1.00E+05
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
TK = 55°C TK = 85°C
500A

500A 100% Duty Cycle

100% Duty Cycle
1.00E+04 1.00E+04
1000A

1000A
1500A

2000A
Frequency (Hz)

1500A

Frequency (Hz)
1.00E+03 1.00E+03 2000A
3000A

3000A

1.00E+02 1.00E+02

1.00E+01 1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02 1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s) Pulse width (s)

Figure 11 - Square wave energy per pulse Figure 12 - Square wave energy per pulse
1.00E+03 1.00E+03
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
di/dt =100A/µs di/dt =500A/µs
Tj = 125°C Tj = 125°C

1.00E+02

1.00E+02

3000A
2000A
1500A
1000A
Energy per pulse (J)

Energy per pulse (J)

1.00E+01
500A

1.00E+01
3000A

1.00E+00 2000A

1500A

1000A 1.00E+00

1.00E-01

500A

1.00E-02 1.00E-01
1.00E-05 1.00E-04 1.00E-03 1.00E-02 1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s) Pulse width (s)

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 8 of 11 June, 2004

 WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Figure 13 - Square wave frequency vs. pulse width Figure 14 - Square wave frequency vs. pulse width
1.00E+05 1.00E+05
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
di/dt =100A/µs di/dt =500A/µs
TK=55°C TK = 55°C
500A

100% Duty Cycle

100% Duty Cycle 500A
1.00E+04 1.00E+04
1000A

1000A
1500A

1500A
Frequency (Hz)

Frequency (Hz)
2000A

1.00E+03 3000A 1.00E+03

2000A

3000A

1.00E+02 1.00E+02

1.00E+01 1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02 1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s) Pulse width (s)

Figure 15 - Square wave frequency vs. pulse width Figure 16 - Square wave frequency vs. pulse width
1.00E+05 1.00E+05
M0859LC140-160 M0859LC140-160
Issue 1 Issue 1
di/dt =100A/µs di/dt =500A/µs
TK = 85°C TK = 85°C

500A

1.00E+04 1.00E+04
500A
100% Duty Cycle

1000A 100% Duty Cycle

1000A
Frequency (Hz)

1500A
Frequency (Hz)

1500A
1.00E+03 2000A 1.00E+03

3000A
2000A

3000A

1.00E+02 1.00E+02

1.00E+01 1.00E+01
1.00E-05 1.00E-04 1.00E-03 1.00E-02 1.00E-05 1.00E-04 1.00E-03 1.00E-02
Pulse width (s) Pulse width (s)

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 9 of 11 June, 2004

 WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

2
Figure 17 – Maximum surge and I t ratings

100000 1.00E+07
M0859LC140-160
Total peak half sine surge current - I FSM (A)

Issue 1
Tj (initial) = 125°C I2t: VRRM≤10V

I2t: VR=60% VRRM

Maximum I t (A s)
2
2
10000 1.00E+06

IFSM: VRRM≤10V

IFSM: VR=60% VRRM

1000 1.00E+05
1 3 5 10 1 5 10 50 100
Duration of surge (ms) Duration of surge (cycles @ 50Hz)

Figure 18 – Transient thermal impedance

0.1
M0859LC140-160
SSC 0.088K/W
Issue 1

DSC 0.044K/W
Thermal impedance (K/W)

0.01

0.001

0.0001
0.0001 0.001 0.01 0.1 1 10 100
Time (s)

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 10 of 11 June, 2004

WESTCODE An IXYS Company Soft Recovery Diode Type M0859LC140 to M0859LC160

Outline Drawing & Ordering Information

ORDERING INFORMATION (Please quote 10 digit code as below)

M0859 LC

0
Voltage code
Fixed Fixed
VDRM/100 Fixed code
Type Code outline code
14-16
Order code: M0859LC160 – 1600V VRRM, 27.0mm clamp height capsule.

WESTCODE
IXYS Semiconductor GmbH Westcode Semiconductors Ltd
Edisonstraße 15 Langley Park Way, Langley Park,
D-68623 Lampertheim Chippenham, Wiltshire, SN15 1GE.
Tel: +49 6206 503-0 Tel: +44 (0)1249 444524
Fax: +49 6206 503-627 Fax: +44 (0)1249 659448
E-mail: marcom@ixys.de An IXYS Company E-mail: WSL.sales@westcode,com

IXYS Corporation Westcode Semiconductors Inc

3540 Bassett Street 3270 Cherry Avenue
Santa Clara CA 95054 USA www.westcode.com Long Beach CA 90807 USA
Tel: +1 (408) 982 0700 Tel: +1 (562) 595 6971
Fax: +1 (408) 496 0670 Fax: +1 (562) 595 8182
E-mail: sales@ixys.net www.ixys.com E-mail: WSI.sales@westcode.com

The information contained herein is confidential and is protected by Copyright. The information may not be used or disclosed © Westcode Semiconductors Ltd.
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.

Data Sheet. Types M0859LC140 to M0859LC160 Issue 1 Page 11 of 11 June, 2004