HFA90NH40 Datasheet, PDF (1/5 Pages) International Rectifier – Ultrafast, Soft Recovery Diode

HEXFRED^TM
Features
• Reduced RFI and EMI
• Reduced Snubbing
• Extensive Characterization of
Recovery Parameters
PD -2.468 rev. B 02/99
HFA90NH40
Ultrafast, Soft Recovery Diode
LUG
TERMINAL
ANODE
a
d
BASE CATHODE
V_R = 400V
V_F(typ.)ƒ= 1V
I_F(AV) = 90A
Q_rr (typ.) = 420nC
I_RRM(typ.) = 9.3A
t_rr(typ.) = 36ns
di_(rec)M/dt (typ.)ƒ = 260A/µs
Description
HEXFRED^TM 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.
HALF-PAK
Absolute Maximum Ratings (per Leg)
Parameter
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
Max.
400
170
84
600
1.4
310
125
-55 to +150
Units
V
A
mJ
W
°C
Thermal - Mechanical Characteristics
Parameter
R_thJC
R_thCS
Wt
Junction-to-Case
Case-to-Sink, Flat, Greased Surface
Weight
Mounting Torque „
Terminal Torque
Vertical Pull
2 inch Lever Pull
Min.
––––
––––
––––
15 (1.7)
30 (3.4)
––––
––––
Typ.
––––
0.15
26 (0.9)
––––
––––
––––
––––
Max.
0.40
––––
––––
25 (2.8)
40 (4.6)
35
35
Units
°C/W
K/W
g (oz)
lbf•in
(N•m)
lbf•in
Note:  Limited by junction temperature
‚ L = 100µH, duty cycle limited by max TJ
ƒ 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 lbf•in steps
until desired or maximum torque limits are reached. Module
1