Date:- 7 May, 2003
Data Sheet Issue:- 1
Rectifier Diode
Type W2624NC160 to W2624NC250
Old Type No.: SW16-25CXC11C
Absolute Maximum Ratings
VOLTAGE RATINGS
V
RRM
V
RSM
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
1600-2500
1700-2600
UNITS
V
V
OTHER RATINGS
I
F(AV)M
I
F(AV)M
I
F(AV)M
I
F(RMS)M
I
F(d.c.)
I
FSM
I
FSM2
It
It
T
j op
T
stg
2
2
MAXIMUM
LIMITS
2624
2110
1311
4828
4218
28.0
30.8
3.92×10
4.74×10
6
6
UNITS
A
A
A
A
A
kA
kA
As
As
°C
°C
2
2
Maximum average forward current, T
sink
=55°C, (note 2)
Maximum average forward current. T
sink
=85°C, (note 2)
Maximum average forward current. T
sink
=85°C, (note 3)
Nominal RMS forward current, T
sink
=25°C, (note 2)
D.C. forward current, T
sink
=25°C, (note 4)
Peak non-repetitive surge t
p
=10ms, V
rm
=0.6V
RRM
, (note 5)
Peak non-repetitive surge t
p
=10ms, V
rm
≤10V,
(note 5)
I t capacity for fusing t
p
=10ms, V
rm
=0.6V
RRM
, (note 5)
I t capacity for fusing t
p
=10ms, V
rm
≤10V,
(note 5)
Operating temperature range
Storage temperature range
2
2
-55 to +160
-55 to +190
Notes:-
1)
De-rating factor of 0.13% per °C is applicable for T
j
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, 160°C T
j
initial.
Data Sheet. Type W2624NC160 to W2624NC250 Issue 1
Page 1 of 9
May, 2003
WESTCODE
An IXYS Company
Characteristics
Rectifier Diode Type W2624NC160 to W2624NC250
PARAMETER
V
FM
V
FM
V
T0
r
T
I
RRM
I
RRM
Q
rr
Q
ra
I
rr
t
rr
R
thJK
F
W
t
Maximum peak forward voltage
Maximum peak forward voltage
Threshold voltage
Slope resistance
Peak reverse current
Peak reverse current
Recovered charge
Recovered charge, 50% Chord
Reverse recovery current
Reverse recovery time
Thermal resistance, junction to heatsink
Mounting force
Weight
Notes:-
1)
Unless otherwise indicated T
j
=160
°
C.
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
19
-
TYP.
-
-
-
-
-
-
3100
2200
160
27
-
-
-
510
MAX. TEST CONDITIONS
(Note 1)
1.5
2.03
0.78
0.16
50
50
-
2600
-
-
0.022
0.044
26
-
Double side cooled
Single side cooled
I
TM
=1000A, t
p
=1000µs, di/dt=10A/µs,
V
r
=50V
Rated V
RRM
Rated V
RRM
, T
j
=25°C
I
TM
=4500A
I
TM
=7870A
UNITS
V
V
V
mΩ
mA
mA
µC
µC
A
µs
K/W
K/W
kN
g
Data Sheet. Type W2624NC160 to W2624NC250 Issue 1
Page 2 of 9
May, 2003
WESTCODE
An IXYS Company
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
16
18
20
22
24
25
V
DRM
V
DSM
V
RRM
V
1600
1800
2000
2200
2400
2500
Rectifier Diode Type W2624NC160 to W2624NC250
V
RSM
V
1700
1900
2100
2300
2500
2600
V
D
V
R
DC V
1050
1150
1250
1350
1450
1500
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 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
⋅
r
s
2
W
AV
and:
∆
T
=
R
th
∆
T
=
T
j
max
−
T
Hs
Where V
0
=0.78V, r
s
=0.16mΩ,
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 W2624NC160 to W2624NC250 Issue 1
Page 3 of 9
May, 2003
WESTCODE
An IXYS Company
5.2 Calculating V
F
using ABCD Coefficients
Rectifier Diode Type W2624NC160 to W2624NC250
The on-state characteristic I
F
vs. V
F
, on page 6 is represented in two ways;
(i)
the well established V
0
and r
s
tangent used for rating purposes and
(ii)
a set of constants A, B, C, D, forming the coefficients of the representative equation for V
F
in
terms of I
F
given below:
V
F
=
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 V
F
agree with the true device characteristic over a current range, which is limited to
that plotted.
25°C Coefficients
A
B
C
D
0.7560109
0.027321
9.716363×10
2.581858×10
-5
-4
160°C Coefficients
0.4728865
0.05340866
1.63729×10
-4
-3
-2.329493×10
Data Sheet. Type W2624NC160 to W2624NC250 Issue 1
Page 4 of 9
May, 2003
WESTCODE
An IXYS Company
5.3 D.C. Thermal Impedance Calculation
Rectifier Diode Type W2624NC160 to W2624NC250
−
t
τ
r
t
=
∑
r
p
⋅
1
−
e
p
p
=
1
p
=
n
Where
p = 1
to
n, n
is the number of terms in the series and:
t = Duration of heating pulse in seconds.
r
t
= Thermal resistance at time t.
r
p
= Amplitude of p
th
term.
τ
p
= Time Constant of r
th
term.
The coefficients for this device are shown in the tables below:
D.C. Single Side Cooled
Term
r
p
1
0.0291698
5.67822
2
4.295845×10
1.123602
-3
3
7.57109×10
0.1407857
-3
4
2.195801×10
-3
5
1.628753×10
1.272749×10
-3
-3
τ
p
0.014381914
D.C. Double Side Cooled
Term
r
p
1
0.01177146
0.9495346
2
6.485814×10
0.1337950
-3
3
2.471007×10
0.01636628
-3
4
1.607109×10
1.255571×10
-3
-3
τ
p
6.0 Reverse recovery ratings
(i) Q
ra
is based on 50% I
rm
chord as shown in Fig. 1
Fig. 1
(ii) Q
rr
is based on a 150µs integration time i.e.
150
µ
s
Q
rr
=
(iii)
∫
i
0
rr
.
dt
K Factor
=
t
1
t
2
Data Sheet. Type W2624NC160 to W2624NC250 Issue 1
Page 5 of 9
May, 2003
