Datasheet W1856NC400, W1856NC500 Datasheet (Westcode Semiconductors)

Date:- 21 Dec, 2004

WESTCODE

An IXYS Company

Rectifier Diode

Types W1856NC400 to W1856NC500

Old Type No: SW40-50CXC815

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) 4000 - 5000 V

Non-repetitive peak reverse voltage, (note 1) 4100 - 5100 V

OTHER RATINGS

Maximum average forward current, T

Maximum average forward current. T

Maximum average forward current. T

Nominal RMS forward current, T

D.C. forward current, T

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

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

2

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

2

I

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

Operating temperature range -40 to +160 °C

Storage temperature range -55 to +160 °C

=25°C, (note 4) 3026 A

sink

=55°C, (note 2) 1856 A

sink

=100°C, (note 2) 1301 A

sink

=100°C, (note 3) 814 A

sink

=25°C, (note 2) 3399 A

sink

, (note 5) 16 kA

RRM

, (note 5) 1.28×10

RRM

Data Sheet Issue:- 1

MAXIMUM

LIMITS

MAXIMUM

LIMITS

21 kA

6

2.21×10

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, 160°C T

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 1 of 9 December, 2004

initial.

j

below 25°C.

j

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Characteristics

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

V

V

r

I

Q

Q

I

t

R

FM

T0

T

RRM

rr

ra

rr

rr

thJK

Maximum peak forward voltage

Threshold voltage - - 0.975 V

Slope resistance - - 0.348

Peak reverse current

Recovered charge - 6200 - µC

Recovered charge, 50% Chord - 3000 3200 µC

Reverse recovery current - 165 - A

Reverse recovery time - 36 -

Thermal resistance, junction to heatsink

- - 2.02 IFM=3000A

- - 2.95 I

- - 50 Rated V

- - 50 Rated V

=5550A

FM

RRM

, Tj=25°C

RRM

I

=1000A, tp=1000µs, di/dt=10A/µs,

TM

V

=50V

r

- - 0.022 Double side cooled

- - 0.044 Single side cooled

V

mΩ

mA

µs

K/W

F Mounting force 19 - 26 kN

W

Weight - 480 - g

t

Notes; -

1) Unless otherwise indicated T

=160°C.

j

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 2 of 9 December, 2004

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Notes on Ratings and Characteristics

1.0 Voltage Grade Table

V

Voltage Grade

40 4000 4100 2000
42 4200 4300 2040
44 4400 4500 2080
46 4600 4700 2120
48 4800 4900 2160
50 5000 5100 2200

2.0 Extension of Voltage Grades

This report is applicable to other voltage grades when supply has been agreed by Sales/Production.

3.0 De-rating Factor

A blocking voltage de-rating factor of 0.13%/°C is applicable to this device for Tj below 25°C.

4.0 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.

5.0 Computer Modelling Parameters

DRM VDSM VRRM

V

V

RSM

V

V

V

D

DC V

R

5.1 Device Dissipation Calculations

2

I

=

AV

Where VT0=0.975V, rT=0.348mΩ,

R

= Supplementary thermal impedance, see table below and

th

00

2

2

4

2

rff

⋅⋅

T

WrffVV

⋅⋅⋅++−

AVTTT

ff = Form factor, see table below.

Supplementary Thermal Impedance

Conduction Angle 6 phase (60°) 3 phase (120°) ½ wave (180°) d.c.

Square wave Double Side Cooled

Square wave Single Side Cooled

Sine wave Double Side Cooled

Sine wave Single Side Cooled

Conduction Angle 6 phase (60°) 3 phase (120°) ½ wave (180°) d.c.

Square wave 2.449 1.732 1.414 1

Sine wave 2.778 1.879 1.57

0.0285 0.0255 0.0240 0.0220

0.0513 0.0484 0.0469 0.0440

0.0257 0.0233 0.022

0.0482 0.0463 0.044

Form Factors

And:

W

AV

=

∆

R

T

th

max

TTT

−=∆

Kj

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 3 of 9 December, 2004

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5.2 Calculating VF 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

given below:

F

vs. VF, on page 6 is represented in two ways;

F

and rT tangent used for rating purposes and

T0

()

in

F

IDICIBAV ⋅+⋅+⋅+= ln

FFFF

The constants, derived by curve fitting software, are given below for both hot and cold characteristics. The
resulting values for V

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

F

that plotted.

25°C Coefficients 160°C Coefficients

A

B

C

D

0.641971348

0.0254553

1.77411×10

6.294207×10

A

B

-4

-3

C

D

0.326766748

0.05167461

2.926949 ×10

7.328941×10

-4

-3

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 4 of 9 December, 2004

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p

p

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5.3 D.C. Thermal Impedance Calculation

−

=

np




∑

=

p

1

Where p = 1 to n, n is the number of terms in the series and:

t = Duration of heating pulse in seconds.
r

= Thermal resistance at time t.

t

= Amplitude of pth term.

r

= Time Constant of rth term.

τ

The coefficients for this device are shown in the tables below:

D.C. Single Side Cooled

Term12345

r

p

τ

p

0.0291698 4.295845×10

5.67822 1.123602 0.1407857 0.014381914 1.272749×10

-3

1

pt




7.57109×10

t



τ

p



err

−⋅=




-3

2.195801×10

-3

1.628753×10

-3

-3

D.C. Double Side Cooled

Term1234

r

p

τ

p

6.0 Reverse recovery ratings

(i) Qra is based on 50% Irm chord as shown in Fig. 1

(ii) Q

is based on a 150µs integration time i.e.

rr

(iii)

0.01177146 6.485814×10

0.9495346 0.1337950 0.01636628 1.255571×10

t

FactorK =

1

t

2

-3

2.471007×10

µ

150

=

∫

0

s

dtiQ

.

rrrr

-3

Fig. 1

1.607109×10

-3

-3

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 5 of 9 December, 2004

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Curves

Figure 1 – Forward characteristics Figure 2 – Transient thermal impedance

10000

W1856NC400-500

Issue 1

25°C

160°C

0.1

W1856NC400-500

Issue 1

SSC 0.044K/W

DSC 0.022K/W

(A)

FM

1000

Instantaneous forward current - I

100

01234

Maximum instantaneous forward voltage - V

Figure 3 – Maximum Surge and I2t Ratings

100000

I

: V

RRM

≤10V

FSM

(A)

FSM

0.01

Thermal impedance ( K/W)

0.001

0.0001

(V)

FM

0.0001 0.001 0.01 0.1 1 10 100

Time (s)

1.00E+08

10000

1000

FSM

I2t: V

RRM

≤10V

I2t: VR=60% V

RRM

RRM

1.00E+07

1.00E+06

2

2

s)

t (A

Maximum I

I

: VR=60% V

W1856NC400-

500

Total peak half sine surge current - I

100

1 3 5 10 1 5 10 50 100

Tj (initial) = 160°C

1.00E+05

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

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 6 of 9 December, 2004

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Figure 4 – Total recovered charge, Q

100000

W1856NC400-500

Issue 1

Tj = 160°C

(µC)

rr

10000

Total recovered charge - Q

1000

1 10 100 1000

Commutation rate - di/dt (A/µs)

rr

2000A
1500A
1000A
500A

Figure 5 – Recovered charge, Qra (50% chord)

10000

W1856NC400-500

Issue 1

Tj = 160°C

(µC)

ra

Recovered charge, 50% chord - Q

1000

1 10 100 1000

Commutation rate - di/dt (A/µs )

2000A
1500A
1000A
500A

Figure 6 – Peak reverse recovery current, I

10000

W1856NC400-500

Issue 1

Tj = 160°C

2000A
1500A

1000

(A)

rm

100

Reverse recovery current - I

10

1 10 100 1000

Commutation rate - di/dt (A/µs )

1000A
500A

rm

Figure 7 – Maximum recovery time, trr (50% chord)

100

(µs)

rr

10

Recovery time, 50% chord - t

1

1 10 100 1000

Commutation rate - di/dt (A/µs)

W1856NC400-500

Issue 1

Tj = 160°C

2000A
1500A
1000A
500A

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 7 of 9 December, 2004

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Figure 8 – Forward current vs. Power dissipation ­Double Side Cooled

7000

W1856NC400-500

Issue 1

d.c.

Maximum Forward Dissi pation (W)

6000

5000

4000

3000

2000

1000

6ø

½ wave

3ø

Figure 9 – Forward current vs. Heatsink temperature - Double Side Cooled

180

W1856NC400-500

Issue 1

160

140

120

100

80

60

Maximum permissable heatsink temperature (°C)

40

20

6ø 3ø ½ wave d.c.

0

0 500 1000 1500 2000 2500 3000 3500

Mean Forward Current (A) (Whole cycle averaged)

Figure 10 – Forward current vs. Power dissipation

- Single Side Cooled

3500

W1856NC400-500

Issue 1

d.c.

3000

6ø

2500

2000

1500

Maximum Forward Dissi pation (W)

1000

500

0

0 500 1000 1500 2000 2500

Mean Forward Current (A) (Whole cycle averaged)

3ø

½ wave

0

0 500 1000 1500 2000 2500 3000 3500

Mean Forward Current (A) (Whole cycle averaged)

Figure 11 – Forward current vs. Heatsink temperature - Single Side Cooled

180

W1856NC400-500

Issue 1

160

140

120

100

80

60

Maximum permissible heatsink temperature (°C)

40

20

0

0 500 1000 1500 2000 2500

Mean forward current (A) (Whole cycle averaged)

6ø 3ø ½ wave d.c.

Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 8 of 9 December, 2004

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Outline Drawing & Ordering Information

ORDERING INFORMATION (Please quote 10 digit code as below)

W1856 NC

Fixed

Type Code

Typical order code: W1856NC400 – 4000V 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, 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.

Fixed outline code

, 27.7mm clamp height capsule.

RRM

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An IXYS Company

www.westcode.com

www.ixys.com

♦♦

♦♦

♦♦♦♦

Voltage code

/100

V

DRM

40-50

0

Fixed code

Westcode Semiconductors Ltd

Langley Park Way, Langley Park,

Chippenham, Wiltshire, SN15 1GE.

Tel: [phone]

Fax: [phone]

E-mail: WSL.sales@westcode,com

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 W1856NC400 to W1856NC500 Issue 1 Page 9 of 9 December, 2004

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WESTCODE An IXYS Company Rectifier Diode Types W1856NC400 to W1856NC500

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Data Sheet. Types W1856NC400 to W1856NC500 Issue 1 Page 10 of 9 December, 2004