VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
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Vishay Semiconductors
Schottky Rectifier, 2 x 20 A
FEATURES
Base
common
• 150 °C TJ operation
cathode
2
• 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
1
3
Anode
1
Anode
2
TO-247AC
2
• Compliant to RoHS Directive 2002/95/EC
• Designed and qualified according to JEDEC-JESD47
Common
cathode
• Halogen-free according to IEC 61249-2-21 definition
(-N3 only)
PRODUCT SUMMARY
Package
TO-247AC
2 x 20 A
40 V, 45 V
0.49 V
IF(AV)
DESCRIPTION
VR
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.
VF at IF
I
RM max.
80 mA at 100 °C
150 °C
TJ max.
Diode variation
EAS
Common cathode
20 mJ
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
IF(AV)
VRRM
IFSM
CHARACTERISTICS
VALUES
40
UNITS
Rectangular waveform
A
V
40/45
tp = 5 μs sine
1240
A
VF
20 Apk, TJ = 125 °C (per leg, typical)
0.42
V
TJ
- 55 to 150
°C
VOLTAGE RATINGS
PARAMETER
SYMBOL VS-40L40CWPbF
VS-40L40CW-N3
VS-40L45CWPbF
VS-40L45CW-N3
UNITS
Maximum DC reverse voltage
VR
40
40
45
45
V
Maximum working peak reverse
voltage
VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
TEST CONDITIONS
VALUES
UNITS
Maximum average
forward current
See fig. 5
per leg
20
IF(AV)
50 % duty cycle at TC = 122 °C, rectangular waveform
per device
40
A
Maximum peak one cycle non-repetitive
surge current per leg
5 µs sine or 3 µs rect. pulse
1240
Following any rated load
condition and with rated
IFSM
V
RRM applied
10 ms sine or 6 ms rect. pulse
350
20
See fig. 7
Non-repetitive avalanche energy per leg
Repetitive avalanche current per leg
EAS
IAR
TJ = 25 °C, IAS = 3 A, L = 4.4 mH
mJ
A
Current decaying linearly to zero in 1 μs
Frequency limited by TJ maximum VA = 1.5 x VR typical
3
Revision: 11-Oct-11
Document Number: 94219
1
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