Document Number: 93981 For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
Revision: 21-Aug-08 1
Schottky Rectifier, 2 x 20 A
MBRB4045CT/MBR4045CT-1
Vishay High Power Products
FEATURES
• 150 °C T
J
operation
• Low forward voltage drop
• High frequency operation
• Center tap TO-220, D
2
PAK and TO-262 packages
• 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 center tap Schottky rectifier has been optimized for low
reverse leakage at high temperature. 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)
2 x 20 A
V
R
45 V
I
RM
95 mA at 125 °C
MBRB4045CT
Base
common
cathode
D
2
PAK
TO-262
MBR4045CT-1
Anode Anode
Common
cathode
1
3
2
2
Base
common
cathode
Anode Anode
Common
cathode
1
3
2
2
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
Rectangular waveform (per device) 40
A
I
FRM
T
C
= 118 °C (per leg) 40
V
RRM
45 V
I
FSM
t
p
= 5 µs sine 900 A
V
F
20 Apk, T
J
= 125 °C 0.58 V
T
J
Range - 65 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL
MBRB4045CT
MBR4045CT-1
UNITS
Maximum DC reverse voltage V
R
45 V
Maximum working peak reverse voltage V
RWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average
forward current
per leg
I
F(AV)
T
C
= 118 °C, rated V
R
20
A
per device 40
Peak repetitive forward current per leg I
FRM
Rated V
R
, square wave, 20 kHz, T
C
= 118 °C 40
Maximum peak one cycle non-repetitive
peak surge current per leg
I
FSM
5 µs sine or 3 µs rect. pulse
Following any rated
load condition and with
rated V
RRM
applied
900
10 ms sine or 6 ms rect. pulse 210
Non-repetitive avalanche energy per leg E
AS
T
J
= 25 °C, I
AS
= 3 A, L = 4.4 mH 20 mJ
Repetitive avalanche current per leg I
AR
Current decaying linearly to zero in 1 µs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
3A