User guide

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Document Number: 93150
4 Revision: 25-May-09
40HFL, 70HFL, 85HFL Series
Vishay High Power Products
Fast Recovery Diodes
(Stud Version), 40 A/70 A/85 A
Notes
(1)
Recommended for pass-through holes
(2)
Recommended for holed threaded heatsinks
Fig. 1 - Reverse Recovery Time Test Waveform
Fig. 2 - Current Rating Nomogram (Sinusoidal Waveforms), 40HFL Series
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS 40HFL 70HFL 85HFL UNITS
Junction operating temperature range T
J
- 40 to 125
°C
Storage temperature range T
Stg
- 40 to 150
Maximum thermal resistance,
junction to case
R
thJC
DC operation 0.60 0.36 0.30
K/W
Maximum thermal resistance,
case to heatsink
R
thCS
Mounting surface, smooth,
flat and greased
0.25
Maximum allowable mounting torque
(+ 0 %, - 10 %)
Not lubricated thread, tighting on nut
(1)
3.4 (30)
N · m
(lbf · in)
Lubricated thread, tighting on nut
(1)
2.3 (20)
Not lubricated thread, tighting on hexagon
(2)
4.2 (37)
Lubricated thread, tighting on hexagon
(2)
3.2 (28)
Approximate weight
25
0.88
Case style JEDEC DO-203AB (DO-5)