20TQS Datasheet, PDF (1/6 Pages) Vishay Siliconix – Schottky Rectifier, 20 A

20TQ...S
Vishay High Power Products
Schottky Rectifier, 20 A
Base
cathode
2
D²PAK
1
3
N/C
Anode
PRODUCT SUMMARY
I_F(AV)
V_R
20 A
35 to 45 V
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
• Designed and qualified for Q101 level
DESCRIPTION
The 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.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
I_F(AV)
Rectangular waveform
V_RRM
I_FSM
Range
t_p = 5 µs sine
V_F
20 Apk, T_J = 125 °C
T_J
Range
VALUES
20
35 to 45
1800
0.51
- 55 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V_R
V_RWM
20TQ035S
35
20TQ040S
40
20TQ045S
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Maximum average forward current
See fig. 5
I_F(AV)
Maximum peak one cycle
non-repetitive surge current
I_FSM
See fig. 7
Non-repetitive avalanche energy
E_AS
Repetitive avalanche current
I_AR
TEST CONDITIONS
50 % duty cycle at T_C = 116 °C, rectangular waveform
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
V_RRM applied
T_J = 25 °C, I_AS = 4 A, L = 3.40 mH
Current decaying linearly to zero in 1 µs
Frequency limited by T_J maximum V_A = 1.5 x V_R typical
VALUES
20
1800
400
27
4
UNITS
A
mJ
A
Document Number: 93955
Revision: 22-Aug-08
For technical questions, contact: [e-mail]
www.vishay.com
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