Westcode Semiconductors W0428##250, W0428##320 Data Sheet
Date:- 16 Jun, 2006
WESTCODE
An IXYS Company
Provisional Data
Rectifier Diode
Type W0428##250 to W0428##320
Development Type No.: WX171##250-320
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(RMS)
I
F(d.c.)
I
FSM
I
FSM2
I2tI
I2t
T
j op
T
stg
Repetitive peak reverse voltage, (note 1) 2500-3200 V
Non-repetitive peak reverse voltage, (note 1) 2600-3300 V
OTHER RATINGS
Maximum average forward current, T
Maximum average forward current. T
Maximum average forward current. T
Nominal RMS forward current, 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 3)
2
t capacity for fusing tp=10ms, Vrm=60%V
2
I
t capacity for fusing tp=10ms, Vrm≤10V, (note 3)
Operating temperature range -40 to +150 °C
Storage temperature range -40 to +150 °C
case
case
case
=25°C 675
=55°C, (note 2) 428
case
=70°C, (note 2) 380
case
=100°C, (note 2) 271
case
=100°C, (note 2) 425
=25°C, (note 2) 809
, (note 3) 5500 A
RRM
, (note 3) 151×10
RRM
Data Sheet Issue:- 1
MAXIMUM
LIMITS
MAXIMUM
LIMITS
6050 A
3
183×10
3
UNITS
UNITS
A
A
A
A
A
A
A2s
A2s
Notes:-
1) De-rating factor of 0.13% per °C is applicable for T
2) Single phase; 50Hz, 180° half-sinewave.
3) Half-sinewave, 150°C T
Provisional Data Sheet. Type W0428##250 to W 0428##320 AD Issue 1 Page 1 of 8 June, 2006
initial.
j
below 25°C.
j
WESTCODE
WESTCODE An IXYS Company Rectifier Diode Type W0428##250 to W0428##320
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Characteristics
PARAMETER MIN. TYP. MAX. TEST CONDITIONS (Note 1) UNITS
V
V
V
r
I
Q
Q
I
t
R
R
T
RRM
rr
rr
Maximum peak forward voltage - - 1.60 ITM=900A V
FM
Maximum peak forward voltage - - 1.80 ITM=1180A V
FM
Threshold voltage - - 0.926 V
T0
Slope resistance - - 0.739
Peak reverse current - - 15 Rated V
Recovered charge - 1000 - µC
rr
Recovered charge, 50% chord - 700 900 µC
ra
Reverse recovery current - 75 - A
I
TM
RRM
=100A, tP=500µs, di/dt=10A/µs, Vr=50V
Reverse recovery time, 50% chord - 19 -
Thermal resistance, junction to case - - 0.13 180° sine K/W
thJC
Thermal resistance, case to heatsink - - 0.04 K/W
thCK
mΩ
mA
µs
F Mounting torque 24 - 30 Nm
W
Weight
t
Notes:-
1) Unless otherwise indicated T
=150°C.
j
- 175 - Outline E
- 250 - Outline F
g
Provisional Data Sheet. Type W0428##250 to W 0428##320 AD Issue 1 Page 2 of 8 June, 2006
WESTCODE
WESTCODE An IXYS Company Rectifier Diode Type W0428##250 to W0428##320
WESTCODEWESTCODE
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
V
Voltage Grade
25 2500 2600 1500
26 2600 2700 1550
28 2800 2900 1650
30 3000 3100 1750
32 3200 3300 1850
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
5.1 Device Dissipation Calculations
2
4
I
=
AV
Where VT0=0.926V, rT=0.739mΩ,
00
2
2
⋅⋅
RRM
V
2
rff
T
WrffVV
⋅⋅⋅++−
AVTTT
and:
V
RSM
V
W
AV
=
∆
R
T
th
max
V
R
DC V
TTT
−=∆
Kj
R
= Supplementary thermal impedance, see table below and
th
ff = Form factor, see table below.
Supplementary Thermal Impedance
Conduction Angle 6 phase (60°) 3 phase (120°) ½ wave (180°) d.c.
Square wave 0.174 0.153 0.143
Sine wave 0.172 0.153 0.149
Form Factors
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
Provisional Data Sheet. Type W0428##250 to W 0428##320 AD Issue 1 Page 3 of 8 June, 2006
0.130
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