40L40CW Datasheet, PDF (1/6 Pages) International Rectifier – SCHOTTKY RECTIFIER

40L40CW/40L45CW
Vishay High Power Products
Schottky Rectifier, 2 x 20 A
Base
common
cathode
2
TO-247AC
1
3
Anode
1
2
Anode
2
Common
cathode
PRODUCT SUMMARY
I_F(AV)
V_R
2 x 20 A
40/45 V
FEATURES
• 150 °C T_J operation
• Center tap TO-247 package
• 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
• Designed and qualified for industrial level
DESCRIPTION
The 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.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
I_F(AV)
Rectangular waveform
V_RRM
I_FSM
t_p = 5 µs sine
V_F
20 Apk, T_J = 125 °C (per leg, typical)
T_J
VALUES
40
40/45
1240
0.42
- 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
40L40CW
40
40L45CW
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Maximum average
forward current
See fig. 5
per leg
per device
I_F(AV)
Maximum peak one cycle non-repetitive
surge current per leg
I_FSM
See fig. 7
Non-repetitive avalanche energy per leg
E_AS
Repetitive avalanche current per leg
I_AR
TEST CONDITIONS
50 % duty cycle at T_C = 122 °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 = 3 A, L = 4.4 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
40
1240
350
20
3
UNITS
A
mJ
A
Document Number: 93344
Revision: 21-Aug-08
For technical questions, contact: [e-mail]
www.vishay.com
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