W1608NC480
| Model | W1608NC480 |
| Description | DIODE 1608 A, 4800 V, SILICON, RECTIFIER DIODE, Rectifier Diode |
| PDF file | Total 7 pages (File size: 381K) |
| Chip Manufacturer | IXYS |
WESTCODE
An IXYS Company
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
40
42
44
46
48
50
2.0 Extension of Voltage Grades
V
RRM
V
4000
4200
4400
4600
4800
5000
Rectifier Diode Type W1608NC400 to W1608NC500
V
RSM
V
4100
4300
4500
4700
4900
5100
V
R
DC V
2000
2040
2080
2120
2160
2200
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 T
j
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
−
V
0
+
V
0
+
4
⋅
ff
⋅
r
s
⋅
W
AV
=
2
⋅
ff
2
⋅
r
s
2
2
W
AV
and:
∆
T
=
R
th
∆
T
=
T
j
max
−
T
Hs
Where V
0
=0.975V, r
s
=0.501mΩ,
R
th
= Supplementary thermal impedance, see table below and
ff
= Form factor, see table below.
Supplementary Thermal Impedance
Conduction Angle
Square wave Double Side Cooled
Square wave Single Side Cooled
Sine wave Double Side Cooled
Sine wave Single Side Cooled
30°
0.0312
0.0543
0.0268
0.0509
60°
0.0285
0.0513
0.0257
0.0482
90°
0.0267
0.0496
0.0241
0.0471
120°
0.0255
0.0484
0.0233
0.0463
180°
0.0240
0.0469
0.022
0.044
270°
0.0228
0.0455
d.c.
0.0220
0.0440
Form Factors
Conduction Angle
Square wave
Sine wave
30°
3.464
3.98
60°
2.449
2.778
90°
2
2.22
120°
1.732
1.879
180°
1.414
1.57
270°
1.149
d.c.
1
Data Sheet. Type W1608NC400 to W1608NC500 Issue 1
Page 3 of 7
September, 2003
