Datasheet

Document Number: 94168 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 12-Mar-10 1
Schottky Rectifier, 20 A
VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
Vishay High Power Products
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
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Halogen-free according to IEC 61249-2-21 definition
• Compliant to RoHS directive 2002/95/EC
• AEC-Q101 qualified
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
I
F(AV)
20 A
V
R
35 V to 45 V
Base
cathode
D
2
PAK
N/C Anode
1
3
2
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 Apk, T
J
= 125 °C 0.51 V
T
J
Range - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-20TQ035SPbF VS-20TQ040SPbF VS-20TQ045SPbF UNITS
Maximum DC reverse voltage V
R
35 40 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 = 3.40 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