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Date:- 19 Apr, 2001
Data Sheet Issue:- 1a
Provisional Data
IGBT Series/Chopper Diode
Type F1400NC18
Absolute Maximum Ratings
VRRM
VRSM
VOLTAGE RATINGS
Repetitive peak reverse voltage, (note 1)
Non-repetitive peak reverse voltage, (note 1)
MAXIMUM
LIMITS
1800
1800
UNITS
V
V
IF(AV)
IF(AV)
IF(AV)
IF(RMS)
IF(d.c.)
IFSM
IFSM2
I2t
I2t
THS
Tstg
OTHER RATINGS (note 6)
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 V0 and rs (see page 2)
MAXIMUM
LIMITS
1093
497
246
2206
1359
17.25
19
1.49×106
1.81×106
-40 to +125
-40 to +150
UNITS
A
A
A
A
A
kA
kA
A2s
A2s
°C
°C
Provisional Data Sheet. Type F1400NC18 Issue 1a
Page 1 of 11
April, 2001

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Characteristics
F1400NC18
PARAMETER
VFM Maximum peak forward voltage
V0 Threshold voltage
rS Slope resistance
V01 Threshold voltage
rS1 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
th(j-hs)
Thermal resistance, junction to heatsink
F Mounting force
Wt Weight
MIN.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
19
-
TYP.
-
-
-
-
-
-
-
-
-
-
40
1.5
600
1.5
-
-
-
510
MAX. TEST CONDITIONS (Note 1)
2.2 IFM=1400A
2.46 IFM=2000A
1.618
Current range 1093A-3279A
0.388
1.730
Current range 1400A-4200A
0.335
19 di/dt = 1000A/µs
15 di/dt = 1000A/µs, Tj=25°C
275 Rated VRRM
50 Rated VRRM, Tj=25°C
70 IFM=1000A, tp=1000µs, di/dt=60A/µs,
2.4 Vr=50V, 50% Chord. (note 2)
- IFM=1400A, tp=100µs, di/dt=1000A/µs,
- Vr=900V, 50% Chord
0.024 Double side cooled
0.048 Single side cooled
26
-
UNITS
V
V
m
V
m
V
mA
µC
µs
µC
µs
K/W
kN
g
Notes:-
1) Unless otherwise indicated Tj=125°C.
2) Figures 3-6 were compiled using these conditions.
Introduction
The F1400NC18 fast recovery diode has soft reverse recovery characteristics with very good K factors. As
such, they are particularly suitable for use in series IGBT applications.
Devices with a suffix code (2 letter or letter/digit/letter combination) added to their generic code are not
necessarily subject to the conditions and limits contained in this report.
Provisional Data Sheet. Type F1400NC18 Issue 1a
Page 2 of 11
April, 2001

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Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
18
VRRM
(V)
1800
VRSM
(V)
1900
F1400NC18
VR dc
(V)
900
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 F1400NC18 Issue 1a
Page 3 of 11
April, 2001