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November 2013
FFPF20UP40S
—
Ultrafast Diode
?2010 Fairchild Semiconductor Corporation
FFPF20UP40S Rev. C1
www.fairchildsemi.com
1
FFPF20UP40S
20 A, 400 V, Ultrafast Diode
Features
? Ultrafast Recovery trr
= 50 ns (@ I
F
= 20 A)
? Max Forward Voltage, VF
= 1.4 V (@ T
C
= 25°C)
? Reverse Voltage, VRRM
= 400 V
? Avalanche Energy Rated
? RoHS Compliant
Applications
? Boost Diode in PFC and SMPS
? Freewheeling Diodes
Description
The FFPF20UP40S is a ultrafast diode with low forward voltage
drop. This device is intended for use as freewheeling and clamp-
ing diodes in a variety of switching power supplies and other
power switching applications. It is
specially suited for use in
switching power supplies and industrial application.
Absolute Maximum Ratings
TC = 25oC unless otherwise noted
Thermal Characteristics
Package Marking and Ordering Information
Symbol Parameter Rating Unit
VRRM
Peak Repetitive Reverse Voltage 400 V
VRWM
Working Peak Reverse Voltage 400 V
VR
DC Blocking Voltage 400 V
IF(AV)
Average Rectified Forward Current @ TC
= 102
oC 20 A
IFSM
Non-repetitive Peak Surge Current
60Hz Single Half-Sine Wave
200 A
TJ, TSTG
Operating and Storage Temperature Range -55 to +150
oC
Symbol Parameter Max. Unit
R?JC
Maximum Thermal Resistance, Junction to Case 2.6
oC/W
Part Number Top Mark Package Packing Method Reel Size Tape Width Quantity
FFPF20UP40S FFPF20UP40S TO-220F-2L Tube N/A N/A
50
1. Cathode 2. Anode
1. Cathode 2. Anode
TO-220F-2L
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