Datasheet M1858NC120, M1858NC160 Datasheet (Westcode Semiconductors)

Date:- 11 Mar, 2004

WESTCODE

An IXYS Company

Soft Recovery Diode

Type M1858NC120 to M1858NC160

Old Type No.: SM02-12CXC514

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) 1200-1600 V
Non-repetitive peak reverse voltage, (note 1) 1300-1700 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 +150 °C

sink

=100°C, (note 3) 448 A

sink

=25°C, (note 4) 3011 A

=55°C, (note 2) 1858 A

sink

=100°C, (note 2) 820 A

sink

=25°C, (note 2) 3787 A

sink

, (note 5) 25.0 kA

RRM

, (note 5) 3.25×10

RRM

Data Sheet Issue:- 1

MAXIMUM

LIMITS

MAXIMUM

LIMITS

28.0 kA

6

3.92×10

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

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 1 of 11 March, 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

--1.7I

--1.6I
Threshold voltage - - 1.127 V
Slope resistance - - 0.127

Maximum forward recovery voltage

- - 10 di/dt = 1000A/µs, Tj=25°C

- - 14 di/dt = 1000A/µs

Peak reverse current

- - 20 Rated V

- - 100 Rated V
Recovered charge - 120 - µC
Recovered charge, 50% Chord - 50 70 µC
Reverse recovery current - 40 - A
Reverse recovery time, 50% Chord - 2.5 -

Thermal resistance, junction to heatsink

- - 0.022 Double side cooled

- - 0.044 Single side cooled

=4500A

FM

=3720A

FM

, Tj=25°C

RRM

RRM

I

=1000A, tp=1000µs, di/dt=60A/µs,

FM

V

=50V, 50% Chord.

r

V

mΩ

V

mA

µs

K/W

F Mounting force 19 - 26 kN
W

Weight - 510 - g

t

Notes:-

1) Unless otherwise indicated T

=125°C.

j

2) For other clamp forces, please consult factory.

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 2 of 11 March, 2004

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Notes on Ratings and Characteristics

1.0 Voltage Grade Table Voltage Grade V

12 1200 1300 810
14 1400 1500 930
16 1600 1700 1050

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 M1858NC120 to M1858NC160 Issue 1 Page 3 of 11 March, 2004

=

FactorK =

dtiQ

.

rrrr

∫

0

t

1

t

2

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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 M1858NC120 to M1858NC160 Issue 1 Page 4 of 11 March, 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

4

2

00

2

I

=

AV

Where VT0 =1.127V, rT = 0.127mΩ

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 both hot and cold
characteristics. The resulting values for V
which is limited to that plotted.

A
B
C
D

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,

F

25°C Coefficients 125°C Coefficients

0.61885059 0.29953373

0.04557522 0.0634842

4.3146×10

8.10383×10

-5

-3

3.47429×10

0.01058562

-5

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 5 of 11 March, 2004

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Curves

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

10000

M1858NC120-160

Issue 1

100

M1858NC120-160

Issue 1

125°C 25°C

(A)

FM

1000

Instantaneous forward current - I

100

0.511.522.5

Maximum instantaneous forward voltage - V

Figure 3 - Recovered charge, Q

1000

M1858NC120-160

Issue 1

Tj = 125°C

125°C

(V)

FRM

10

Maximum forward recovery voltage - V

1

(V)

FM

rr

2000A
1500A
1000A

500A

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

100 1000 10000

Rate of rise of forward current - di/dt (A/µs)

1000

M1858NC120-160

Issue 1

Tj = 125°C

25°C

2000A
1500A
1000A
500A

(µC)

rr

100

Total recovered charge - Q

10

1 10 100 1000

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 6 of 11 March, 2004

Commutation rate - di/dt (A/µs)

100

(µC)

ra

Recovered charge - Q

10

1

1 10 100 1000

Commutation rate - di/dt (A/µs)

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Figure 5 - Maximum reverse current, I

1000

M1858NC120-160

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

2000A
1500A
1000A
500A

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

10

M1858NC120-160

Issue 1

Tj = 125°C

(µs)

rr

2000A
1500A
1000A
500A

Recovery time - t

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

1

M1858NC120-160

Issue 1

Tj = 125°C
V

=400V

r

No Snubber

(J)

r

0.1

Energy per pulse - E

0.01
1 10 100 1000

Commmutation rate - di/dt (A/µs)

5000A
2000A
1000A
500A

1.00E+03

1.00E+02

1.00E+01

1.00E+00

Energy per pulse (J)

1.00E-01

1.00E-02

M1858NC120-160

Issue 1

Tj = 125°C

10000A

8000A
6000A
4000A
2000A

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

Pulse width (s)

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 7 of 11 March, 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

4kA

6kA

8kA

10kA

M1858NC120-160

100% Duty Cycle

Issue 1

TK = 55°C

1.00E+05

1.00E+04

2kA

4kA
6kA

8kA

10kA

M1858NC120-160

100% Duty Cycle

Issue 1

TK = 85°C

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

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

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+05

1.00E+04

4kA

M1858NC120-160

Issue 1

di/dt =100A/µs

100% Duty Cycle

TK=55°C

1.00E+05

1.00E+04

4kA

6kA

8kA

M1858NC120-160

di/dt =500A/µs

100% Duty Cycle

Issue 1

TK = 55°C

6kA

8kA

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

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

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 8 of 11 March, 2004

10kA

Pulse width (s)

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

10kA

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

2kA

M1858NC120-160

Issue 1

di/dt =100A/µs

TK = 85°C

1.00E+05

4kA

2kA

M1858NC120-160

Issue 1

di/dt =500A/µs

TK = 85°C

1.00E+04

4kA

6kA

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

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

8kA

10kA

Pulse width (s)

100% Duty Cycle

1.00E+04

1.00E+03

Frequency (Hz)

1.00E+02

1.00E+01

6kA

8kA

10kA

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

Pulse width (s)

100% Duty Cycle

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

1.00E+03
M1858NC120-160

Issue 1

di/dt =100A/µs
Tj = 125°C

1.00E+03
M1858NC120-160

Issue 1
di/dt =500A/µs
Tj = 125°C

1.00E+02

1.00E+01

2kA

4kA

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

6kA

8kA

10kA

Pulse width (s)

1.00E+02

10kA

8kA
6kA

1.00E+01

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

4kA
2kA

Pulse width (s)

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 9 of 11 March, 2004

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Figure 17 – Maximum surge and I2t ratings

100000

(A)

FSM

10000

Total peak half sine surge current - I

1000

I2t: V

I2t: VR=60% V

I

I

M1858NC120-160

≤

RRM

: V

FSM

RRM

: VR=60% V

FSM

Tj (initial) = 125°C

Issue 1

1 35101 510 50100

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

10V

10V

≤

RRM

RRM

1.00E+08

1.00E+07

1.00E+06

2

2

s)
t (A

Maximum I

Figure 18 – Transient thermal impedance

0.1

M1858NC120-160

Issue 1

0.01

0.001

Thermal impedance (K/W)

0.0001

0.0001 0.001 0.01 0.1 1 10 100

SSC 0.044K/W

DSC 0.022K/W

Time (s)

Data Sheet. Types M1858NC120 to M1858NC160 Issue 1 Page 10 of 11 March, 2004

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Outline Drawing & Ordering Information

ORDERING INFORMATION (Please quote 10 digit code as below)





M1858 NC

Fixed

Type Code

Order code: M1858NC160 – 1600V 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 time without prior
notice.

Devices with a suffix code (2-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

, 27.7mm clamp height capsule.

RRM

www.westcode.com

www.ixys.com



Voltage code

/100

V

DRM

12-16

0

Fixed code

Westcode Semiconductors Ltd

Langley Park Way, Langl ey Park,

Chippenham, Wi l tshire 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 M1858NC120 to M1858NC160 Issue 1 Page 11 of 11 March, 2004