Datasheet

VS-20TQ0..PbF Series, VS-20TQ0..-N3
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Vishay Semiconductors
Revision: 26-Aug-11
1
Document Number: 94167
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Schottky Rectifier, 20 A
FEATURES
• 150 °C T
J
operation
• Low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy
encapsulation for enhanced mechanical strength
and moisture resistance
• 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-20TQ... Schottky rectifier series 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 switching power supplies, converters,
freewheeling diodes, and reverse battery protection.
PRODUCT SUMMARY
Package TO-220AC
I
F(AV)
20 A
V
R
35 V, 40 V, 45 V
V
F
at I
F
0.51 V
I
RM
max. 105 mA at 125 °C
T
J
150 °C
Diode variation Single die
E
AS
27 mJ
Anode
1
3
Cathode
Base
cathode
2
TO-220AC
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
Rectangular waveform 20 A
V
RRM
Range 35 to 45 V
I
FSM
t
p
= 5 μs sine 1800 A
V
F
20 A
pk
, T
J
= 125 °C 0.51 V
T
J
Range - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL
VS-
20TQ035PbF
VS-
20TQ035-N3
VS-
20TQ040PbF
VS-
20TQ040-N3
VS-
20TQ045PbF
VS-
20TQ045-N3
UNITS
Maximum DC
reverse voltage
V
R
35 35 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
I
F(AV)
50 % duty cycle at T
C
= 116 °C, rectangular waveform 20
A
Maximum peak one cycle
non-repetitive surge current
See fig. 7
I
FSM
5 µs sine or 3 µs rect. pulse
Following any rated load
condition and with rated
V
RRM
applied
1800
10 ms sine or 6 ms rect. pulse 400
Non-repetitive avalanche energy E
AS
T
J
= 25 °C, I
AS
= 4 A, L = 3.4 mH 27 mJ
Repetitive avalanche current I
AR
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
4A