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HFA45HC120C_15 Datasheet, PDF (1/3 Pages) International Rectifier – Ultrafast, Soft Recovery Diode
HEXFREDTM
PD-20375A
HFA45HC120C
Ultrafast, Soft Recovery Diode
Features
• Reduced RFI and EMI
• Reduced Snubbing
• Extensive Characterization of Recovery Parameters
• Hermetic
• Electrically Isolated
• Ceramic Eyelets
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.
(ISOLATED BASE)
ANODE COMMON ANODE
CATHODE
VR = 1200V
VF = 3.0V
Qrr = 675nC
TO-258AA
Absolute Maximum Ratings (per Leg)
VR
IF @ TC = 100°C
IFSM @ TC = 25°C
PD @ TC = 25°C
TJ
TSTG
Parameter
D.C. Reverse Voltage
Continuous Forward Current 
Single Pulse Forward Current ‚
Maximum Power Dissipation
Operating Junction and
Storage Temperature Range
Max.
1200
28
190
104
-55 to +150
Units
V
A
W
°C
Thermal - Mechanical Characteristics
RθJC
Parameter
Junction-to-Case, Single Leg Conducting
Weight
Note:  D.C. = 50% rect. wave
‚ 1/2 sine wave, 60 Hz , P.W. = 8.33 ms
www.irf.com
Typ.
—
10.9
Max.
1.2
—
Units
°C/W
g
1
6/23/99