Datasheet M0736LC400, M0736LC450 Datasheet (Westcode Semiconductors)

Fast Recovery Diode

Type M0736LC400 to M0736LC450

Absolute Maximum Ratings

Date:- 1 Sep, 2003

Data Sheet Issue:- 1

(Old Type No.: SM45CXC374)

VOLTAGE RATINGS

V

RRM

V

RSM

Repetitive peak reverse voltage, (note 1) 4000-4500 V

Non-repetitive peak reverse voltage, (note 1) 4100-4600 V

OTHER RATINGS

I

F(AVM)

I

F(AVM)

I

F(AVM)

I

F(RMS)

I

f(d.c.)

I

FSM

I

FSM2

I2tI

I2t

T

j op

T

stg

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

Maximum average forward current, T

Maximum average forward current. T

Maximum average forward. T

=85°C, (note 3) 291 A

sink

Nominal RMS forward current, T

D.C. forward current, T

=25°C, (note 4) 1229 A

sink

Peak non-repetitive surge tp=10ms, VRM=0.6V

=55°C, (note 2) 736 A

sink

=85°C, (note 2) 493 A

sink

=25°C, (note 2) 1474 A

sink

, (note 5) 9.0 kA

RRM

Peak non-repetitive surge tp=10ms, VRM≤10V, (note 5)

2

t capacity for fusing tp=10ms, VRM=0.6V

2

t capacity for fusing tp=10ms, VRM≤10V, (note 5)

I

, (note 5) 405×10

RRM

Operating temperature range -40 to +125 °C

Storage temperature range -40 to +125 °C

below 25°C.

j

initial.

j

MAXIMUM

LIMITS

MAXIMUM

LIMITS

10.0 kA

3

3

500×10

UNITS

UNITS

A2s

A2s

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 1 of 11 September, 2003

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Characteristics

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

V

V

r

T

Maximum peak forward voltage

FM

Threshold voltage - - 1.606 V

T0

- - 3.06 IFM=2200A

Slope resistance - - 0.7

V

mΩ

- - 200 di/dt = 1000A/µs

- - 2.56 IFM=1400A

V

I

Q

Q

I

t

R

RRM

rm

rr

Maximum forward recovery voltage

FRM

Peak reverse current

Recovered charge - 1250 - µC

rr

Recovered charge, 50% Chord - 450 520 µC

ra

Reverse recovery current - 170 - A

- - 120 di/dt = 1000A/µs, Tj=25°C

- - 100 Rated V

- - 100 Rated V

I

FM

V

RRM

, Tj=25°C

RRM

=1000A, tp=1000µs, di/dt=60A/µs,

=50V, 50% Chord.

r

Reverse recovery time, 50% Chord - 5.2 -

- - 0.033 Double side cooled

Thermal resistance, junction to heatsink

thJK

- - 0.066 Single side cooled

V

mA

µs

K/W

F Mounting force 10 - 20 kN

W

Weight - 340 - g

t

Notes:-

1) Unless otherwise indicated T

=125°C.

j

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 2 of 11 September, 2003

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Notes on Ratings and Characteristics

1.0 Voltage Grade Table

Voltage Grade V

40 4000 4100 2000
42 4200 4300 2040
44 4400 4500 2080
45 4500 4600 2100

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 M0736LC400 to M0736LC450 Issue 1 Page 3 of 11 September, 2003

=

FactorK =

dtiQ

.

rrrr

∫

0

t

1

t

2

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)

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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

The total dissipation is now given by:

This device has a low reverse recovered charge and peak reverse recovery current. When measuring the
charge, care must be taken to ensure that:

amplitude forward current.

to avoid overloading the internal amplifiers by the relatively high amplitude forward current signal.

= d.c. thermal resistance (°C/W)

th(J-Hs

originaltot

NOTE 1 - Reverse Recovery Loss by Measurement

(a) AC coupled devices such as current transformers are not affected by prior passage of high

(b) A suitable, polarised, clipping circuit must be connected to the input of the measuring oscilloscope

[]

fEWW

)()(

⋅+=

RfkETT ⋅+⋅−=

thJKMAXjSINK

(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

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.

V

⋅= 4

C

R = Snubber resistance

r

di

C

⋅

dt

S

= Snubber capacitance

S

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 4 of 11 September, 2003

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7.0 Computer Modelling Parameters

7.1 Device Dissipation Calculations

oo

4

I

=

AV

2

Where VT0 = 1.606V, rT = 0.7mΩ

2

2

rff

⋅⋅

s

WrffVV

⋅⋅⋅++−

AVs

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 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.

agree with the true device characteristic over a current range, which is limited to

F

125°C Coefficients

A

B

C

D

0.1981286639

0.2470648

5.437322×10

5.055176×10

-4

-3

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 5 of 11 September, 2003

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Curves

Figure 1 – Forward characteristics of Limit device Figure 2 – Maximum forward recovery voltage

10000

M0736LC400-450

Issue 1

1000

M0736LC400-450

Issue 1

125°C

(A)

FM

1000

Instantaneous forward current - I

100

12345

Maximum instantaneous forward voltage - V

Figure 3 - Recovered charge, Q

10000

M0736LC400-450

Issue 1

Tj = 125°C

125°C

(V)

FRM

100

10

Maximum forward recovery voltage - V

1

(V)

FM

rr

Figure 4 - Recovered charge, Qra (50% chord)

10 100 1000 10000

Rate of rise o f forward c urrent - di /dt (A/µs)

10000

M0736LC400-450

Issue 1

Tj = 125°C

25°C

2000A

1500A

1000A

(µC)

rr

500A

1000

Total recovered charge - Q

100

10 100 1000

Commutation rate - di/dt (A/µs)

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 6 of 11 September, 2003

(µC)

ra

1000

Recovered charge - Q

100

10 100 1000

Commutation rate - di/dt (A/µs)

2000A
1500A
1000A
500A

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Figure 5 - Maximum reverse current, I

1000

M0736LC400-450

Issue 1

Tj = 125°C

(A)

rm

Reverse recovery current - I

100

10 100 1000

Commutat ion rate - d i/dt (A/µs)

rm

2000A
1500A
1000A
500A

Figure 6 - Maximum recovery time, trr (50% chord)

10

M0736LC400-450

Issue 1

Tj = 125°C

2000A
1500A

(µs)

rr

Recovery time - t

1

10 100 1000

Commutation rate - di/dt (A/µs)

1000A
500A

Figure 7 – Reverse recovery energy per pulse Figure 8 - Sine wave energy per pulse

10000

M0736LC400-450

Issue 1

Tj = 125°C
V

=400V

r

No Snubber

(mJ)

r

1000

Energy per pulse - E

100

1 10 100 1000 10000

Commmutation rate - di/dt (A/µs)

2000A

1500A

1000A

500A

1.00E+03

1.00E+02

1.00E+01

Energy per pulse (J)

1.00E+00

1.00E-01

M0736LC400-450

Issue 1

Tj = 150°C

3000A
2000A
1500A
1000A

500A

1.00E-05 1.00E-04 1.00E-03 1.00E-02

Pulse width (s)

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 7 of 11 September, 2003

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Figure 9 - Sine wave frequency vs. pulse width Figure 10 - Sine wave frequency vs. pulse width

1.00E+05

M0736LC400-450

Issue 1

TK = 55°C

1.00E+05

M0736LC400-450

Issue 1

TK = 85°C

500A

1.00E+04

1000A

1500A

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

100% Duty Cycle

Pulse width (s)

1.00E+04

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

500A

1000A

1500A

2000A

3000A

1.00E-05 1.00E-04 1.00E-03 1.00E-02

100% Duty Cycle

Pulse width (s)

Figure 11 - Square wave energy per pulse Figure 12 - Square wave energy per pulse

1.00E+05

1.00E+04

500A

1000A

M0736LC400-450

Issue 1

di/dt =100A/µs

100% Duty Cycle

TK=55°C

1.00E+05

1.00E+04

500A

M0736LC400-450

di/dt =500A/µs

100% Duty Cycle

Issue 1

TK = 55°C

1500A

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 8 of 11 September, 2003

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

1500A

2000A

3000A

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

M0736LC400-450

Issue 1

di/dt =100A/µs

TK = 85°C

1.00E+05
M0736LC400-450

Issue 1

di/dt =500A/µs

TK = 85°C

1.00E+04

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

500A

1000A

1500A

2000A

3000A

1.00E-05 1.00E-04 1.00E-03 1.00E-02

Pulse width (s)

100% Duty Cycle

1.00E+04

100% Duty Cycle

500A

1.00E+03

Frequency (Hz)

1000A

1.00E+02

1.00E+01

1.00E-05 1.00E-04 1.00E-03 1.00E-02

1500A

2000A

3000A

Pulse width (s)

Figure 15 - Square wave frequency vs. pulse width Figure 16 - Square wave frequency vs. pulse width

1.00E+03

M0736LC400-450

Issue 1

di/dt =100A/µs

Tj = 150°C

1.00E+03

M0736LC400-450

Issue 1

di/dt =500A/µs

Tj = 150°C

1.00E+02

1.00E+01

Energy per pulse (J)

1.00E+00

1.00E-01

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 9 of 11 September, 2003

3000A

2000A

1500A

1000A

500A

1.00E-05 1.00E-04 1.00E-03 1.00E-02

Pulse width (s)

1.00E+02

1.00E+01

Energy per pulse (J)

1.00E+00

1.00E-01

3000A
2000A
1500A
1000A

500A

1.00E-05 1.00E-04 1.00E-03 1.00E-02

Pulse width (s)

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Figure 17 – Maximum surge and I2t ratings

100000

M0736LC400-450

Issue 1

(A)

FSM

Tj (initial) = 150°C

10000

Total peak half sine surge current - I

1000

135101 510 50100

Duration of surge (ms) Duration of surge (cycles @ 50Hz)

I2t: V

I2t: VR=60% V

I

FSM

I

FSM

≤

RRM

: V

≤

RRM

: VR=60% V

10V

10V

RRM

RRM

1.00E+07

1.00E+06

1.00E+05

2

2

s)

t (A

Maximum I

Figure 18 – Transient thermal impedance

0.1

M0736LC400-450

Issue 1

0.01

0.001

Thermal impedance (K/W)

0.0001

0.0001 0.001 0.01 0.1 1 10 100

SSC 0.065K/W

DSC 0.033K/W

Time (s)

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 10 of 11 September, 2003

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Outline Drawing & Ordering Information

ORDERING INFORMATION (Please quote 10 digit code as below)





M0736 LC

Fixed

Type Code

Order code: M0736LC420 – 4200V V

IXYS Semiconductor GmbH

Edisonstraße 15
D-68623 Lampertheim
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

IXYS Corporation

3540 Bassett Street
Santa Clara CA 95054 USA
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

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 ti me without prior
notice.

Devices with a suffix code (2-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.

Fixed

outline code

, 27.0mm clamp height capsule.

RRM

www.westcode.com

www.ixys.com



Voltage code

/100

V

DRM

40-45

0

Fixed code

Westcode Semiconductors Ltd

Langley Park Way, Langley Park,

Chippenham, Wiltshire SN15 1GE.

Tel: [phone]

Fax: [phone]

E-mail: [e-mail]

Westcode Semiconductors Inc

3270 Cherry Avenue

Long Beach CA 90807 USA

Tel: [phone]

Fax: [phone]

E-mail: [e-mail]

© Westcode Semiconductors Ltd.

Data Sheet. Types M0736LC400 to M0736LC450 Issue 1 Page 11 of 11 September, 2003