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HFA70NC60C Datasheet, PDF (1/5 Pages) International Rectifier – Ultrafast, Soft Recovery Diode
PD -2.464 rev. B 01/99
HEXFREDTM
Features
• Reduced RFI and EMI
• Reduced Snubbing
• Extensive Characterization of
Recovery Parameters
HFA70NC60C
Ultrafast, Soft Recovery Diode
VR = 600V
VF(typ.)ƒ = 1.2V
IF(AV) = 70A
Qrr (typ.) = 210nC
IRRM(typ.) = 6A
trr(typ.) = 30ns
di(rec)M/dt (typ.)ƒ = 180A/µs
Description
HEXFREDTM diodes are optimized to reduce losses and EMI/RFI in high frequency
power conditioning systems. An extensive characterization of the recovery
behavior for different values of current, temperature and di/dt simplifies the
calculations of losses in the operating conditions. The softness of the recovery
eliminates the need for a snubber in most applications. These devices are ideally
suited for power converters, motors drives and other applications where
switching losses are significant portion of the total losses.
Absolute Maximum Ratings (per Leg)
VR
IF @ TC = 25°C
IF @ TC = 100°C
IFSM
EAS
PD @ TC = 25°C
PD @ TC = 100°C
TJ
TSTG
Parameter
Cathode-to-Anode Voltage
Continuous Forward Current
Continuous Forward Current
Single Pulse Forward Current 
Non-Repetitive Avalanche Energy ‚
Maximum Power Dissipation
Maximum Power Dissipation
Operating Junction and
Storage Temperature Range
Max.
600
56
27
200
220
150
59
-55 to +150
D-61-8
Units
V
A
µJ
W
°C
Thermal - Mechanical Characteristics
Parameter
RthJC
Junction-to-Case, Single Leg Conducting
Junction-to-Case, Both Legs Conducting
RthCS
Wt
Case-to-Sink, Flat , Greased Surface
Weight
Mounting Torque
Min.
––––
––––
––––
––––
35 (4.0)
Typ.
––––
––––
0.30
7.8 (0.28)
––––
Max.
0.85
0.42
––––
––––
50 (5.7)
Units
°C/W
K/W
g (oz)
lbf•in
(N•m)
Note:  Limited by junction temperature
‚ L = 100µH, duty cycle limited by max TJ
ƒ 125°C
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