Westcode Semiconductors W1856NC400, W1856NC500 Data Sheet
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
WESTCODE
WESTCODE An IXYS Company Rectifier Diode Types W1856NC400 to W1856NC500
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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
WESTCODE
WESTCODE An IXYS Company Rectifier Diode Types W1856NC400 to W1856NC500
WESTCODEWESTCODE
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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