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Document Number: 93529
2 Revision: 25-May-09
85HF(R) Series
Vishay Semiconductors
Standard Recovery Diodes,
(Stud Version), 85 A
Notes
(1)
Available only for 88HF
(2)
Recommended for pass-through holes
(3)
Recommended for holed threaded heatsinks
FORWARD CONDUCTION
PARAMETER SYMBOL TEST CONDITIONS
85HF(R)
UNITS
10 to 120 140/160
Maximum average forward current
at case temperature
I
F(AV)
180° conduction, half sine wave
85 A
140 110 °C
Maximum RMS forward current I
F(RMS)
133 A
Maximum peak, one-cycle forward,
non-repetitive surge current
I
FSM
t = 10 ms
No voltage
reapplied
Sinusoidal half wave,
initial T
J
= T
J
maximum
1700
A
t = 8.3 ms 1800
t = 10 ms
100 % V
RRM
reapplied
1450
t = 8.3 ms 1500
Maximum I
2
t for fusing I
2
t
t = 10 ms
No voltage
reapplied
14 500
A
2
s
t = 8.3 ms 13 500
t = 10 ms
100 % V
RRM
reapplied
10 500
t = 8.3 ms 9400
Maximum I
2
t for fusing I
2
t t = 0.1 ms to 10 ms, no voltage reapplied 16 000
A
2
s
Value of threshold voltage
(up to 1200 V)
V
F(TO)
T
J
= T
J
maximum
0.68
V
Value of threshold voltage
(for 1400 V, 1600 V)
0.69
Value of forward slope resistance
(up to 1200 V)
r
f
T
J
= T
J
maximum
1.62
m
Value of forward slope resistance
(for 1400 V, 1600 V)
1.75
Maximum forward voltage drop V
FM
I
pk
= 267 A, T
J
= 25 °C, t
p
= 400 µs rectangular wave 1.2 1.4 V
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS
85HF(R)
UNITS
10 to 120 140/160
Maximum junction operating and
storage temperature range
T
J
, T
Stg
- 65 to 180 - 65 to 150 °C
Maximum thermal resistance,
junction to case
R
thJC
DC operation 0.35
K/W
Maximum thermal resistance,
case to heatsink
R
thCS
Mounting surface, smooth, flat and greased 0.25
Maximum shock
(1)
1500
g
Maximum constant vibration
(1)
50 Hz
20
Maximum constant acceleration
(1)
Stud outwards
5000
Maximum allowable mounting
torque (+ 0 %, - 10 %)
Not lubricated thread, tighting on nut
(2)
3.4 (30)
N · m
(lbf · in)
Lubricated thread, tighting on nut
(2)
2.3 (20)
Not lubricated thread, tighting on hexagon
(3)
4.2 (37)
Lubricated thread, tighting on hexagon
(3)
3.2 (28)
Approximate weight Unleaded device
17 g
0.6 oz.
Case style See dimensions - link at the end of datasheet DO-203AB (DO-5)
