Owner's manual

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Document Number: 93400
2 Revision: 19-Aug-08
81CNQ...A Series
Vishay High Power Products
Schottky Rectifier
New Generation 3
D-61 Package, 2 x 40 A
Note
(1)
Pulse width < 300 µs, duty cycle < 2 %
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
See fig. 5
I
F(AV)
50 % duty cycle at T
C
= 141 °C, rectangular waveform 80
A
Maximum peak one cycle
non-repetitive surge current per leg
See fig. 7
I
FSM
5 µs sine or 3 µs rect. pulse
Following any rated
load condition and with
rated V
RRM
applied
4600
10 ms sine or 6 ms rect. pulse 790
Non-repetitive avalanche energy per leg E
AS
T
J
= 25 °C, I
AS
= 8 A, L = 1.7 mH 54 mJ
Repetitive avalanche current per leg I
AR
Current decaying linearly to zero in 1 µs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
8A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward
voltage drop per leg
See fig. 1
V
FM
(1)
40 A
T
J
= 25 °C
0.60
V
80 A 0.74
40 A
T
J
= 125 °C
0.54
80 A 0.66
Maximum reverse
leakage current per leg
See fig. 2
I
RM
(1)
T
J
= 25 °C
V
R
= Rated V
R
5
mA
T
J
= 125 °C 45
Maximum junction capacitance per leg C
T
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C 2600 pF
Typical series inductance per leg L
S
Measured lead to lead 5 mm from package body 5.5 nH
Maximum voltage rate of change dV/dt Rated V
R
10 000 V/µs