Schottky Barrier Rectifier
DST2045AX, 20A, 45V, Axial, Single
DST2045AX
RoHS
Pb
Description
Littelfuse DST series Ultra Low VF Schottky Barrier
Rectifier is designed to meet the general requirements
of commercial and industry applications by providing high
temperature, low leakage and lower VF products.
It is suitable for high frequency switching mode power
supply, free-wheeling diodes and polarity protection
diodes.
Features
Pin out
ltra low forward voltage
• U
drop
• High
frequency operation
Anode
• High
junction
temperature capability
Cathode
• Guard ring for enhanced
ruggedness and long
term reliability
• Single die in P600
package
Applications
• S
witching mode power
supply
• Free-Wheeling diodes
• Polarity Protection Diodes
• DC/DC converters
Maximum Ratings
Parameters
Symbol
Test Conditions
Max
Unit
Peak Inverse Voltage
VRWM
-
45
V
Average Forward Current (per device)
IF(AV)
50% duty cycle @TA =25°C
rectangular wave form
20
A
Peak One Cycle Non-Repetitive Surge
Current (per leg)
IFSM
8.3 ms, half Sine pulse
250
A
Symbol
Test Conditions
Max
Unit
VF1
@20A, Pulse, TJ = 25 °C
0.58
VF2
@20A, Pulse, TJ = 125 °C
0.50
IR1
@VR = rated VR TJ = 25 °C
1.2
IR2
@VR = rated VR TJ = 125 °C
35
Electrical Characteristics
Parameters
Forward Voltage Drop (per leg) *
Reverse Current (per leg) *
* Pulse Width < 300μs, Duty Cycle
