PD-2.509 rev. A 12/98
HEXFREDTM
Features
Reduced RFI and EMI
Reduced Snubbing
Extensive Characterization of
Recovery Parameters
HFA160MD40D
Ultrafast, Soft Recovery Diode
Anode AC Cathode
1
2
Isolated Base
VR = 400V
VF(typ.) = 0.9V
IF(AV) = 160A
Qrr (typ.) = 260nC
IRRM(typ.) = 7.1A
trr(typ.) = 50ns
di(rec)M/dt (typ.) = 260A/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)
TO-244AB
(ISOLATED)
Parameter
Max.
Units
VR
IF @ TC = 25°C
IF @ TC = 100°C
IFSM
EAS
PD @ TC = 25°C
PD @ TC = 100°C
TJ
TSTG
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
400
V
142
68
A
900
1.4
mJ
225
91
W
-55 to +150
C
Thermal - Mechanical Characteristics
Parameter
Min.
Typ.
Max. Units
RthJC
RthCS
Junction-to-Case, Single Leg Conducting
Junction-to-Case, Both Legs Conducting
Case-to-Sink, Flat , Greased Surface
0.10
0.55
0.28
°C/W
K/W
Wt
Weight
79 (2.8)
g (oz)
Mounting Torque
Terminal Torque
30 (3.4)
30 (3.4)
40 (4.6) lbfin
40 (4.6) (Nm)
Vertical Pull
2 inch Lever Pull
80
lbfin
35
Note: Limited by junction temperature
L = 100µH, duty cycle limited by max TJ
125°C
Mounting surface must be smooth, flat, free or burrs or other
protrusions. Apply a thin even film or thermal grease to mounting
surface. Gradually tighten each mounting bolt in 5-10 lbfin steps
until desired or maximum torque limits are reached. Module
1