Features
High surge current capability
Stud cathode and stud anode version
Leaded version available
Types up to 1600V V
RRM
Typical Applications
Battery charges
Converters
Power supplies
Machine tool controls
Welding
Parameters
Units
85HF(R)
10 to 120
140 , 160
I
F(AV)
85
85
A
@ T
C
140
110
C
I
F(RMS)
133
A
I
FSM
@
50Hz
1700
A
@ 60Hz
1800
A
I
2
t
@
50Hz
14500
A
2
s
@ 60Hz
13500
A
2
s
V
RRM
range
100 to 1200
1400 , 1600
V
T
J
range
- 65 to 180
- 65 to 150
C
Major Ratings and Characteristics
case style
DO-203AB (DO-5)
85HF(R) SERIES
STANDARD RECOVERY DIODES
85 A
1
Stud Version
Bulletin I20203 rev. C 03/04
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85HF(R) Series
2
Bulletin I20203 rev. C 03/04
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I
F(AV)
Max. average forward current
85
85
A
180 conduction, half sine wave
@ Case temperature
140
110
C
I
F(RMS)
Max. RMS forward current
133
A
I
FSM
Max. peak, one-cycle forward,
1700
t = 10ms
No voltage
non-repetitive surge current
1800
t = 8.3ms
reapplied
1450
t = 10ms
100% V
RRM
1500
t = 8.3ms
reapplied
Sinusoidal half wave,
I
2
t
Maximum I
2
t for fusing
14500
t = 10ms
No voltage
Initial T
J
= T
J
max.
13500
t = 8.3ms
reapplied
10500
t = 10ms
100% V
RRM
9400
t = 8.3ms
reapplied
I
2
t
Maximum I
2
t for fusing
16000
A
2
s
t = 0.1 to 10ms, no voltage reapplied
V
F(TO)
Value of threshold
voltage (up to 1200V)
V
F(TO)
Value of threshold
voltage (for 1400V, 1600V)
r
f
Value of forward slope
resistance (up to 1200V)
r
f
Value of forward slope
resistance (up to 1200V)
V
FM
Max. forward voltage drop
1.2
1.4
V
I
pk
= 267A, T
J
= 25C, t
p
= 400s rectangular wave
85HF(R)
10 to 120 140 , 160
Parameter
Units Conditions
1.75
T
J
= T
J
max.
1.62
T
J
= T
J
max.
m
0.69
T
J
= T
J
max.
0.68
T
J
= T
J
max.
V
A
2
s
A
Forward Conduction
Voltage
V
RRM
, maximum
V
RSM
, maximum non-
I
RRM
max.
Type number
Code
repetitive peak
repetitive peak
@ T
J
= T
J
max.
reverse voltage
reverse voltage
V
V
mA
10
100
200
9
20
200
300
40
400
500
85HF(R)
60
600
700
80
800
900
100
1000
1100
120
1200
1300
140
1400
1500
4.5
160
1600
1700
ELECTRICAL SPECIFICATIONS
Voltage Ratings
85HF(R) Series
3
Bulletin I20203 rev. C 03/04
www.irf.com
Parameter
Units
Conditions
85HF(R)
10 to 120
140 to 160
T
J
Max. junction operating temperature range
-65 to 180
-65 to 150
T
stg
Max. storage temperature range
-65 to 180
-65 to 150
R
thJC
Max. thermal resistance, junction to case
0.35
DC operation
R
thCS
Max. thermal resistance, case
Mounting surface, smooth, flat and
to heatsink
greased
Maximum shock
1500g
see note (1)
Maximum constant vibration
20g
50Hz
see note (1)
Maximum constant acceleration
5000g
Stud outwards
see note (1)
T
Max. allowed mounting torque 10%
2.3 - 3.4
Nm
Not lubricated threads
20 - 30
lbf
in
wt
Approximate weight
17 (0.6)
g (oz)
unleaded device
Case style
DO-203AB (DO5)
See Outline Table
C
0.25
K/W
Thermal and Mechanical Specifications
180
0.10
0.08
T
J
= T
J
max.
120
0.11
0.11
90
0.13
0.13
60
0.17
0.17
30
0.26
0.26
Conduction angle
Sinusoidal conduction Rectangular conduction Units
Conditions
K/W
R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
Ordering Information Table
1
2
3
4
5
Device Code
85
HF
R
160
M
1
-
85 = Standard device
86 = Not isolated lead
87 = Isolated lead with silicone sleeve
(Red = Reverse polarity)
(Blue = Normal polarity)
88 = Type for rotating application
2
-
Standard diode
3
-
None = Stud Normal Polarity (Cathode to Stud)
R
= Stud Reverse Polarity (Anode to Stud)
4
-
Voltage code: Code x 10 = V
RRM
(See Voltage Ratings table)
5
-
None = Stud base DO-203AB (DO-5) 1/4" 28UNF-2A
M
= Stud base DO-203AB (DO-5) M6 X 1 - (Not available for 88HF)
(1) Available only for 88HF
85HF(R) Series
4
Bulletin I20203 rev. C 03/04
www.irf.com
Outlines Table
86HF(R)
Case Style DO-203AB (DO-5)
All dimensions in millimeters (inches)
85HF(R)
Case Style DO-203AB (DO-5)
All dimensions in millimeters (inches)
85HF(R) Series
5
Bulletin I20203 rev. C 03/04
www.irf.com
Outlines Table
88HF(R)
Case Style DO-203AB (DO-5)
All dimensions in millimeters (inches)
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Average Forward Current (A)
Average Forward Current (A)
Maximum Allowable Case Temperature (C)
Maximum Allowable Case Temperature (C)
130
140
150
160
170
180
0 10 20 30 40 50 60 70 80 90 100
30
60
90
120
180
Conduction Angle
85HF(R) Series (100V to 1200V)
RthJC (DC) = 0.35 K/W
130
140
150
160
170
180
0
20
40
60
80 100 120 140
DC
30
60
90
120
180
Conduction Period
85HF(R) Series (100V to 1200V)
RthJC (DC) = 0.35 K/W
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