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RURD420S Datasheet, PDF (1/5 Pages) Fairchild Semiconductor – 4A, 200V Ultrafast Diodes
Data Sheet
January 2002
RURD420S
4A, 200V Ultrafast Diodes
The RURD420S is an ultrafast diode with soft recovery
characteristics (trr < 30ns). It has low forward voltage drop
and has ion-implanted epitaxial planar construction.
This device is intended for use as a freewheeling/clamping
diode and rectifier in a variety of switching power supplies and
other power switching applications. It’s low stored charge and
ultrafast soft recovery minimize ringing and electrical noise in
many power switching circuits, reducing power loss in the
switching transistors.
Formerly developmental type TA49034.
Ordering Information
PART NUMBER
PACKAGE
BRAND
RURD420S
TO-252
RUR420
NOTE: When ordering, use the entire part number. Add the suffix 9A
to obtain the TO-252 variant in tape and reel, i.e., RURD420S9A.
Symbol
K
Features
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . . <30ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . . . .175oC
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Packaging
JEDEC STYLE TO-252
CATHODE
ANODE
CATHODE
(FLANGE)
A
Absolute Maximum Ratings TC = 25oC, Unless Otherwise Specified
Peak Repetitive Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .VRRM
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VRWM
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VR
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IF(AV)
(TC = 159oC)
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IFRM
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IFSM
(Halfwave, 1 Phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PD
Avalanche Energy (See Figures 9 and 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EAVL
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSTG, TJ
Maximum Lead Temperature for Soldering
(Leads at 0.063 in. (1.6mm) from case for 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TL
Package Body for 10s, see Tech Brief 334. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPKG
Electrical Specifications TC = 25oC, Unless Otherwise Specified
SYMBOL
TEST CONDITION
MIN
TYP
VF
IF = 4A
IF = 4A, TC = 150oC
-
-
-
-
RURD420S
200
200
200
4
8
40
30
10
-65 to 175
300
260
MAX
1.0
0.83
UNITS
V
V
V
A
A
A
W
mJ
oC
oC
oC
UNITS
V
V
©2002 Fairchild Semiconductor Corporation
RURD420S Rev. C