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Two Common-Cathode Diodes
Ultrafast Reverse Recovery
Ultrasoft Reverse Recovery Current Shape
Low Forward Voltage Drop
Low Leakage Current
Optimized for Power Conversion: Welding and Industrial SMPS Applications
Up to 175擄C Operating Junction Temperature
t
rr
= 38ns
I
F(AV)
= 70Amp
@T
C
= 116擄C
V
R
= 400V
Description/ Applications
The 70CRU04 integrates two state-of-the-art International Rectifier鈥檚 Ultrafast recovery rectifiers in the common-
cathode configuration. The planar structure of the diodes, and the platinum doping life-time control, provide a
Ultrasoft recovery current shape, together with the best overall performance, ruggedness and reliability
characteristics.
These devices are thus intended for high frequency applications in which the switching energy is designed not to be
predominant portion of the total energy, such as in the output rectification stage of Welding machines, SMPS, DC-
DC converters. Their extremely optimized stored charge and low recovery current reduce both over-dissipation in
the switching elements (and snubbers) and EMI/RFI.
Absolute Maximum Ratings
Parameters
V
R
I
F(AV)
I
FSM
P
D
T
J
, T
STG
Cathode to Anode Voltage
Continuous Forward Current
Single Pulse Forward Current
Maximum Power Dissipation
T
C
= 116擄C
T
C
= 25擄C
T
C
= 100擄C
Per Diode
Per Diode
Per Module
Max
400
35
300
47
- 55 to 175
Units
V
A
W
擄C
Operating Junction and Storage Temperatures
Case Styles
70CRU04
Base
Common
Cathode
2
1
3
2
Anode
1
Anode
2
TO-218
www.irf.com
Common
Cathode
1