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Date:- 6th March, 2014
Data Sheet Issue:- 3
Rectifier Diode
Types W0507YH360 to W0507YH450
Previous Type No.: SW36-45HXC270
Absolute Maximum Ratings
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
3600-4500
3700-4600
UNITS
V
V
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)
Maximum average 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=60%VRRM, (note 5)
Peak non-repetitive surge tp=10ms, Vrm≤10V, (note 5)
I2t capacity for fusing tp=10ms, Vrm=60%VRRM, (note 5)
I2t capacity for fusing tp=10ms, Vrm≤10V, (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) Cathode side cooled, single phase; 50Hz, 180° half-sinewave.
4) Double side cooled.
5) Half-sinewave, 160°C Tj initial.
MAXIMUM
LIMITS
505
345
210
935
805
7600
8200
289×103
336×103
-40 to +160
-55 to +160
UNITS
A
A
A
A
A
A
A
A2s
A2s
°C
°C
Data Sheet. Types W0507YH360 to W0507YH450 Issue 3
Page 1 of 10
March, 2014

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Characteristics
Rectifier Diode Types W0507YH360 to W0507YH450
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)
- 1.50 IFM=635A
- 0.97
- 0.88
- 30 Rated VRRM
- 0.1 Double side cooled
- 0.2 Single side cooled
- 5.5 Note 2
140
Notes:-
1) Unless otherwise indicated Tj=160°C.
2) For other clamp forces, please consult factory.
UNITS
V
V
mΩ
mA
K/W
K/W
kN
g
Data Sheet. Types W0507YH360 to W0507YH450 Issue 3
Page 2 of 10
March, 2014

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Rectifier Diode Types W0507YH360 to W0507YH450
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
36
45
VRRM
V
3600
4500
VRSM
V
3700
4600
VR
DC V
1900
2100
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
2
0
+
4⋅
ff
2
⋅ rT
⋅WAV
2 ⋅ ff 2 ⋅ rT
and:
Where VT0=0.97V, rT=0.88mΩ,
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
0.130
0.117
Square wave Cathode Side Cooled
0.230
0.217
Sine wave Double Side Cooled
0.117
0.108
Sine wave Cathode Side Cooled
0.217
0.208
½ wave (180°)
0.110
0.210
0.103
0.203
d.c.
0.1
0.2
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 W0507YH360 to W0507YH450 Issue 3
Page 3 of 10
March, 2014

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Rectifier Diode Types W0507YH360 to W0507YH450
5.2 Calculating VF using ABCD Coefficients
The on-state characteristic IF vs. VF, on page 8 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 0.6783057
B 0.03467407
C 4.695493 × 10-4
D 7.388426 × 10-3
160°C Coefficients
A 0.2587428
B 0.1185595
C 8.401342 × 10-4
D -2.233814 × 10-3
Data Sheet. Types W0507YH360 to W0507YH450 Issue 3
Page 4 of 10
March, 2014

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Rectifier Diode Types W0507YH360 to W0507YH450
5.3 D.C. Thermal Impedance Calculation
∑rt
=
p=n
rp
p =1
⋅
⎜⎜⎛1
−
e
−t
τp
⎝
⎟⎞
⎟⎠
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
rp = Amplitude of pth term.
τp = Time Constant of rth term.
The coefficients for this device are shown in the tables below:
Term
rp
τp
1
0.04766233
1.066889
D.C. Double Side Cooled
2
0.03243763
3
9.409791 × 10-3
0.1235431
0.03840402
4
9.611571 × 10-3
3.538193 × 10-3
Term
rp
τp
1
0.1366152
6.983036
2
0.0151329
0.8476553
3
0.0383066
0.1217136
6.0 Reverse recovery ratings
(i) Qra is based on 50% Irm chord as shown in Fig. 1
4
8.577754 × 10-3
0.0159452
5
6.230917 × 10-3
2.446305 × 10-3
(ii) Qrr is based on a 150µs integration time i.e.
(iii) K Factor = t1
t2
150 µs
∫Qrr = irr .dt
0
Fig. 1
Data Sheet. Types W0507YH360 to W0507YH450 Issue 3
Page 5 of 10
March, 2014