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WESTCODE
An IXYS Company
Date:- 2 Oct, 2003
Data Sheet Issue:- 1
Provisional Data
Extra Fast Recovery Diode
Type F1500NC250
Absolute Maximum Ratings
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
2500
2600
UNITS
V
V
OTHER RATINGS (note 6)
IF(AV)M
IF(AV)M
IF(AV)M
IF(RMS)
IF(d.c.)
IFSM
IFSM2
I2t
I2t
Tj op
Tstg
Mean forward current, Tsink=55°C, (note 2)
Mean forward current. Tsink=100°C, (note 2)
Mean 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, 125°C Tj initial.
6) Current (IF) ratings have been calculated using VT0 and rT (see page 2)
MAXIMUM
LIMITS
1054
509
295
2090
1789
13.75
15.10
0.95×106
1.14×106
-40 to +125
-40 to +150
UNITS
A
A
A
A
A
kA
kA
A2s
A2s
°C
°C
Provisional Data Sheet. Type F1500NC250 Issue 1
Page 1 of 11
October, 2003

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WESTCODE An IXYS Company
Characteristics
Extra Fast Recovery Diode Type F1500NC250
PARAMETER
VFM Maximum peak forward voltage
VT0 Threshold voltage
rT Slope resistance
VT01 Threshold voltage
rT1 Slope resistance
VFRM Maximum forward recovery voltage
IRRM Peak reverse current
Qra Recovered charge, 50% Chord
trr Reverse recovery time
Qra Recovered charge, 50% Chord
trr Reverse recovery time
R
thJK
Thermal resistance, junction to heatsink
F Mounting force
Wt Weight
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
19
-
TYP.
-
-
-
-
-
-
-
-
-
-
800
1.5
100
2.5
-
-
-
510
MAX. TEST CONDITIONS (Note 1)
2.2 IFM=1500A
2.55 IFM=2100A
1.372
Current range 1054A-3162A (Note 2)
0.535
1.51
Current range 1500A-4500A
0.472
50 di/dt = 1000A/µs
35 di/dt = 1000A/µs, Tj=25°C
175 Rated VRRM
50 Rated VRRM, Tj=25°C
- IFM=1500A, tp=10ms, di/dt=2000A/µs,
- Vr=300V, 50% Chord. (note 3)
115 IFM=1000A, tp=1000µs, di/dt=60A/µs,
- Vr=50V, 50% Chord
0.024 Double side cooled
0.048 Single side cooled
26 (Note 4)
-
Notes:-
1) Unless otherwise indicated Tj=125°C.
2) VT0 and rT were used to calculate the current ratings illustrated on page one.
3) Figures 3-6 were compiled using these conditions.
4) For clamp forces outside these limits, please consult factory.
UNITS
V
V
m
V
m
V
mA
µC
µs
µC
µs
K/W
kN
g
Provisional Data Sheet. Type F1500NC250 Issue 1
Page 2 of 11
October, 2003

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WESTCODE An IXYS Company
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
25
VRRM
(V)
2500
Extra Fast Recovery Diode Type F1500NC250
VRSM
(V)
2600
VR dc
(V)
1500
2.0 De-rating Factor
A blocking voltage de-rating factor of 0.13% per °C is applicable to this device for Tj below 25°C.
3.0 ABCD Constants
These constants (applicable only over current range of VF characteristic in Figure 1) are the coefficients of
the expression for the forward characteristic given below:
VF = A + B ln(I F ) + C I F + D I F
where IF = instantaneous forward current.
4.0 Reverse recovery ratings
(i) Qra is based on 50% IRM chord as shown in Fig.(a) below.
(ii) Qrr is based on a 150µs integration time.
150 µs
I.e. Qrr = irr .dt
0
(iii)
K Factor = t1
t2
Provisional Data Sheet. Type F1500NC250 Issue 1
Page 3 of 11
October, 2003