40CPQ035/40CPQ040/40CPQ045
Vishay High Power Products
Schottky Rectifier, 2 x 20 A
FEATURES
Base
common
cathode
2
• 150 °C T
J
operation
• Center tap TO-247 package
• Very low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
TO-247AC
1
3
Anode
Anode
2
1
2
Common
cathode
• Guard ring for enhanced ruggedness and long term
reliability
• Designed and qualified for industrial level
DESCRIPTION
The 40CPQ... 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 switching power supplies, converters,
freewheeling diodes, and reverse battery protection.
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 20 A
35 to 45 V
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 µs sine
20 Apk, T
J
= 125 °C (per leg)
CHARACTERISTICS
Rectangular waveform
VALUES
40
35 to 45
3500
0.43
- 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
40CPQ035
35
40CPQ040
40
40CPQ045
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 5
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
Non-repetitive avalanche energy per leg
Repetitive avalanche current per leg
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 120 °C, rectangular waveform
5 µs sine or 3 µs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
E
AS
I
AR
T
J
= 25 °C, I
AS
= 4 A, L = 3.4 mH
Current decaying linearly to zero in 1 µs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Following any rated load
condition and with rated
V
RRM
applied
VALUES
40
3500
430
27
4
mJ
A
A
UNITS
Document Number: 93336
Revision: 21-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
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