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Date:- 6th March, 2014
Data Sheet Issue:- 3
Rectifier Diode
Types W0944WC120 to W0944WC150
Previous Type No.: SW04-15CXC470
Absolute Maximum Ratings
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
1200-1500
1300-1600
UNITS
V
V
OTHER RATINGS
IF(AV)M
IF(AV)M
IF(RMS)M
IF(d.c.)
IFSM
IFSM2
I2t
I2t
Tj op
Tstg
Maximum average forward current, Tsink=55°C, (note 2)
Maximum average forward current. Tsink=100°C, (note 2)
Nominal RMS forward current, Tsink=25°C, (note 2)
D.C. forward current, Tsink=25°C, (note 3)
Peak non-repetitive surge tp=10ms, Vrm=60%VRRM, (note 4)
Peak non-repetitive surge tp=10ms, Vrm10V, (note 4)
I2t capacity for fusing tp=10ms, Vrm=60%VRRM, (note 4)
I2t capacity for fusing tp=10ms, Vrm10V, (note 4)
Operating temperature range
Storage temperature range
Notes:-
1) De-rating factor of 0.13% per °C is applicable for Tj below 25°C.
2) Double side cooled, single phase; 50Hz, 180° half-sinewave.
3) Double side cooled.
4) Half-sinewave, 190°C Tj initial.
MAXIMUM
LIMITS
944
716
1694
1430
9.0
10.0
0.405×106
0.50×106
-40 to +190
-55 to +200
UNITS
A
A
A
A
kA
kA
A2s
A2s
°C
°C
Data Sheet. Types W0944WC120 to W0944WC150 Issue 3
Page 1 of 10
March, 2014

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Characteristics
Rectifier Diode Types W0944WC120 to W0944WC150
PARAMETER
VFM Maximum peak forward voltage
VT0 Threshold voltage
rT Slope resistance
IRRM Peak reverse current
RthJK Thermal resistance, junction to heatsink
F Mounting force
Wt Weight
MIN.
-
-
-
-
-
-
-
3.3
TYP. MAX. TEST CONDITIONS (Note 1)
- 1.45 IFM=1930A
- 0.79
- 0.342
- 15 Rated VRRM
- 0.09 Double side cooled
- 0.186 Anode side cooled
- 0.174 Cathode side cooled
- 5.5 Note 2
140
Notes:-
1) Unless otherwise indicated Tj=190°C.
2) For other clamp forces, please consult factory.
UNITS
V
V
m
mA
K/W
K/W
K/W
kN
g
Data Sheet. Types W0944WC120 to W0944WC150 Issue 3
Page 2 of 10
March, 2014

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Rectifier Diode Types W0944WC120 to W0944WC150
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
12
15
VRRM
V
1200
1500
VRSM
V
1300
1600
VR
DC V
805
1005
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
I AV = −VT 0 +
VT 02 + 4 ff 2 rT WAV
2 ff 2 rT
and:
Where VT0=0.79V, rT=0.342mΩ,
Rth = Supplementary thermal impedance, see table below and
ff = Form factor, see table below.
WAV
=
T
Rth
T = Tj max TK
Supplementary Thermal Impedance
Conduction Angle
6 phase (60°) 3 phase (120°)
Square wave Double Side Cooled
0.10258
0.09759
Square wave Cathode Side Cooled
0.21094
0.20665
Sine wave Double Side Cooled
0.09589
0.09352
Sine wave Cathode Side Cooled
0.20761
0.20212
½ wave (180°)
0.09519
0.20388
0.09138
0.20013
d.c.
0.09092
0.19887
Conduction Angle
Square wave
Sine wave
Form Factors
6 phase (60°) 3 phase (120°)
2.449
1.732
2.778
1.879
½ wave (180°)
1.414
1.57
d.c.
1
Data Sheet. Types W0944WC120 to W0944WC150 Issue 3
Page 3 of 10
March, 2014