Datasheet

VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
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Vishay Semiconductors
Revision: 11-Oct-11
1
Document Number: 94219
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Schottky Rectifier, 2 x 20 A
FEATURES
• 150 °C T
J
operation
• High purity, high temperature epoxy
encapsulation for enhanced mechanical
strength and moisture resistance
• Very low forward voltage drop
• High frequency operation
• Guard ring for enhanced ruggedness and long
term reliability
• Compliant to RoHS Directive 2002/95/EC
• Designed and qualified according to JEDEC-JESD47
• Halogen-free according to IEC 61249-2-21 definition
(-N3 only)
DESCRIPTION
The VS-40L...CW... center tap Schottky rectifier has been
optimized for very low forward voltage drop with moderate
leakage. The proprietary barrier technology allows for
reliable operation up to 150 °C junction temperature. Typical
applications are in parallel switching power supplies.
PRODUCT SUMMARY
Package TO-247AC
I
F(AV)
2 x 20 A
V
R
40 V, 45 V
V
F
at I
F
0.49 V
I
RM
max. 80 mA at 100 °C
T
J
max. 150 °C
Diode variation Common cathode
E
AS
20 mJ
Base
common
cathode
Common
cathode
2
2
13
Anode
1
Anode
2
TO-247AC
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
Rectangular waveform 40 A
V
RRM
40/45 V
I
FSM
t
p
= 5 μs sine 1240 A
V
F
20 Apk, T
J
= 125 °C (per leg, typical) 0.42 V
T
J
- 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-40L40CWPbF VS-40L40CW-N3 VS-40L45CWPbF VS-40L45CW-N3 UNITS
Maximum DC reverse voltage V
R
40 40 45 45 V
Maximum working peak reverse
voltage
V
RWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average
forward current
See fig. 5
per leg
I
F(AV)
50 % duty cycle at T
C
= 122 °C, rectangular waveform
20
A
per device 40
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
1240
10 ms sine or 6 ms rect. pulse 350
Non-repetitive avalanche energy per leg E
AS
T
J
= 25 °C, I
AS
= 3 A, L = 4.4 mH 20 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
3A