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Date:- 4 Aug, 2003
Data Sheet Issue:- 1
Rectifier Diode
Types W1032LC500 to W1032LC600
(Old Part Number: SW50-60CXC350)
Absolute Maximum Ratings
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
OTHER RATINGS
IF(AV)M
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=100°C, (note 3)
Nominal RMS forward current, Tsink=25°C, (note 2)
D.C. forward current, Tsink=25°C, (note 4)
Peak non-repetitive surge tp=10ms, Vrm=0.6VRRM, (note 5)
Peak non-repetitive surge tp=10ms, Vrm10V, (note 5)
I2t capacity for fusing tp=10ms, Vrm=0.6VRRM, (note 5)
I2t capacity for fusing tp=10ms, Vrm10V, (note 5)
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) Single side cooled, single phase; 50Hz, 180° half-sinewave.
4) Double side cooled.
5) Half-sinewave, 150°C Tj initial.
MAXIMUM
LIMITS
5000-6000
5100-6100
MAXIMUM
LIMITS
1032
689
432
1912
1717
7200
8000
259×103
320×103
-40 to +150
-55 to +150
UNITS
V
V
UNITS
A
A
A
A
A
A
A
A2s
A2s
°C
°C
Data Sheet. Type W1032LC500 to W1032LC600 Issue 1
Page 1 of 8
July, 2003

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Characteristics
Rectifier Diode Types W1032LC500 to W1032LC600
PARAMETER
VFM Maximum peak forward voltage
VT0 Threshold voltage
rT Slope resistance
IRRM Peak reverse current
IRRM Peak reverse current
Qrr Total recovered charge
Qra Reverse recovery charge (50% chord)
Irm Reverse recovery current
trr Reverse recovery time (50% chord)
RthJK Thermal resistance, junction to heatsink
F Mounting force
Wt Weight
Notes:-
1) Unless otherwise indicated Tj=150°C.
MIN.
-
-
-
-
-
-
-
-
-
-
-
10
-
TYP. MAX. TEST CONDITIONS (Note 1)
UNITS
-
-
-
-
-
4400
1900
125
30
-
-
-
340
2.7 ITM=2420A
1.0
0.702
30 Rated VRRM
30 Rated VRRM, Tj=25°C
-
2050
- IFM=1000A, tp=1ms, di/dt=10A/µs, Vr=50V
-
0.033 Double side cooled
0.066 Single side cooled
20
-
V
V
m
mA
mA
µC
µC
A
µs
K/W
K/W
kN
g
Data Sheet. Type W1032LC500 to W1032LC600 Issue 1
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Rectifier Diode Types W1032LC500 to W1032LC600
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
50
52
54
56
58
60
VRRM
V
5000
5200
5400
5600
5800
6000
VRSM
V
5100
5300
5500
5700
5900
6100
VR
DC V
2200
2240
2280
2320
2360
2400
2.0 De-rating Factor
A blocking voltage de-rating factor of 0.13%/°C is applicable to this device for Tj below 25°C.
3.0 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.
4.0 Computer Modelling Parameters
4.1 Device Dissipation Calculations
I AV = −V0 +
V02 + 4 ff 2 rs WAV
2 ff 2 rs
and:
WAV
=
T
Rth
T = Tj max THs
Where V0=1.0V, rs=0.702mΩ,
Rth = Supplementary thermal impedance, see table below.
ff = Form factor, see table below.
Supplementary Thermal Impedance (at 50Hz operating frequency)
Conduction Angle
6 phase (60°)
3 phase (120°) Half wave (180°)
Square wave Double Side Cooled
0.045
0.040
0.036
Square wave Single Side Cooled
0.081
0.075
0.070
Sine wave Double Side Cooled
0.042
0.038
0.034
Sine wave Single Side Cooled
0.079
0.072
0.067
d.c.
0.033
0.066
Conduction Angle
Square wave
Sine wave
6 phase (60°)
2.45
2.78
3 phase (120°)
1.73
1.88
Half wave (180°)
1.41
1.57
d.c.
1
Data Sheet. Type W1032LC500 to W1032LC600 Issue 1
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Rectifier Diode Types W1032LC500 to W1032LC600
4.2 Calculating VF using ABCD Coefficients
The forward characteristic IF vs. VF, on page 5 is represented in two ways;
(i) the well established VT0 and rT tangent used for rating purposes and
(ii) a set of constants A, B, C, D, forming the coefficients of the representative equation for VF in
terms of IF given below:
VF = A + B ln(I F )+ C I F + D I F
The constants, derived by curve fitting software, are given below for both hot and cold characteristics. The
resulting values for VF agree with the true device characteristic over a current range, which is limited to
that plotted.
25°C Coefficients
A 0.786727
B 0.06700378
C 5.405371×10-4
D -5.209484×10-3
150°C Coefficients
A 0.5103767
B 0.1000737
C 7.364539×10-4
D -7.568512×10-3
4.3 D.C. Thermal Impedance Calculation
rt
=
p=n
rp
p =1
1
t
eτ p


Where p = 1 to n, n is the number of terms in the series and:
t = Duration of heating pulse in seconds.
rt = Thermal resistance at time t.
rp = Amplitude of pth term.
τp = Time Constant of rth term.
Term
rp
τp
1
0.01771901
0.7085781
D.C. Double Side Cooled
2
4.240625×10-3
3
6.963806×10-3
0.1435833
0.03615196
4
3.043661×10-3
2.130842×10-3
Term
rp
τp
1
0.04013371
4.073105
D.C. Single Side Cooled
2
8.832199×10-3
3
9.210899×10-3
1.196877
0.09882439
4
3.73647×10-3
0.01585017
5
2.594797×10-3
2.077263×10-3
Data Sheet. Type W1032LC500 to W1032LC600 Issue 1
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Curves
Figure 1 – Forward characteristics of Limit device
10000
W1032LC500-600
Issue 1
25°C
150°C
Rectifier Diode Types W1032LC500 to W1032LC600
Figure 2 – Transient Thermal Impedance
0.1
W1032LC500-600
Issue 1
SSC 0.066K/W
DSC
0.033K/W
0.01
1000
0.001
0.0001
100
0
12345
Instantaneous Forward Voltage - VFM (V)
Figure 3 – Maximum surge and I2t Ratings
100000
6
10000
0.00001
1E-05 0.0001 0.001 0.01 0.1 1 10 100
Time (s)
W1032LC500-600
Issue 1
Tj (initial) = 150°C
1.0E+07
I2t: VRRM10V
I2t: 100% VRRM
1.0E+06
IFSM: VRRM10V
IFSM: 100% VRRM
1000
1
3 5 10 1
5 10
50 100
Duration of surge (ms) Duration of surge (cycles at 50Hz)
1.0E+05
Data Sheet. Type W1032LC500 to W1032LC600 Issue 1
Page 5 of 8
July, 2003