RURD4120, RURD4120S
Data Sheet
January 2000
File Number 3641.3
4A, 1200V Ultrafast Diodes
Features
The RURD4120 and RURD4120S are ultrafast diodes with
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . .<70ns
soft recovery characteristics (t < 70ns). They have low
forward voltage drop and are silicon nitride passivated
ion-implanted epitaxial planar construction.
rr
o
• Operating Temperature. . . . . . . . . . . . . . . . . . . . . . .175 C
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200V
• Avalanche Energy Rated
These devices are intended for use as freewheeling/
clamping diodes and rectifiers in a variety of switching power
supplies and other power switching applications. Their low
stored charge and ultrafast soft recovery minimize ringing
and electrical noise in many power switching circuits
reducing power loss in the switching transistors.
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Formerly developmental type TA49036.
Ordering Information
Packaging
PART NUMBER
PACKAGE
TO-251
TO-252
BRAND
UR4120
UR4120
JEDEC STYLE TO-251
RURD4120
ANODE
RURD4120S
CATHODE
NOTE: When ordering, use the entire part number. Add the suffix 9A
to obtain the TO-252 variant in the tape and reel, i.e.,
RURD4120S9A.
CATHODE
(FLANGE)
Symbol
K
JEDEC STYLE TO-252
CATHODE
(FLANGE)
A
CATHODE
ANODE
o
Absolute Maximum Ratings T = 25 C, Unless Otherwise Specified
C
RURD4120, RURD4120S
UNITS
Peak Repetitive Reverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
1200
1200
1200
4
V
V
V
A
RRM
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RWM
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
R
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I
F(AV)
o
(T = 152 C)
C
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Square Wave, 20kHz)
8
A
A
FRM
FSM
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Halfwave, 1 Phase, 60Hz)
40
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
50
10
W
D
Avalanche Energy (See Figures 10 and 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
mJ
AVL
o
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
, T
-65 to 175
C
STG
J
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