25F(R) Series
Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 25 A
FEATURES
• High surge current capability
• Stud cathode and stud anode version
• Wide current range
• Types up to 1200 V V
RRM
• RoHS compliant
RoHS
COMPLIANT
TYPICAL APPLICATIONS
DO-203AA (DO-4)
• Battery charges
• Converters
PRODUCT SUMMARY
I
F(AV)
25 A
• Power supplies
• Machine tool controls
MAJOR RATINGS AND CHARACTERISTICS
PARAMETER
I
F(AV)
I
F(RMS)
I
FSM
I
2
t
V
RRM
T
J
50 Hz
60 Hz
50 Hz
60 Hz
Range
TEST CONDITIONS
VALUES
25
T
C
120
40
356
373
636
580
100 to 1200
- 65 to 175
UNITS
A
°C
A
A
A
2
s
V
°C
ELECTRICAL SPECIFICATIONS
VOLTAGE RATINGS
TYPE
NUMBER
VOLTAGE
CODE
V
RRM
, MAXIMUM
REPETITIVE PEAK
REVERSE VOLTAGE
V
100
200
400
600
800
1000
1200
V
RSM
, MAXIMUM
NON-REPETITIVE
PEAK VOLTAGE
V
150
275
500
725
950
1200
1400
V
R(BR)
, MINIMUM
AVALANCHE
VOLTAGE
V
(1)
-
-
500
750
950
1150
1350
12
I
RRM
MAXIMUM
AT T
J
= 175 °C
mA
10
20
40
25F(R)
60
80
100
120
Note
(1)
Avalanche version only available from V
RRM
400 V to 1200 V
Document Number: 93506
Revision: 29-Sep-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
1
25F(R) Series
Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 25 A
FORWARD CONDUCTION
PARAMETER
Maximum average forward current
at case temperature
Maximum RMS forward current
Maximum on-repetitive peak
reverse power
SYMBOL
I
F(AV)
I
F(RMS)
P
R(1)
10 µs square pulse, T
J
= T
J
maximum
t = 10 ms
Maximum peak, one-cycle forward,
non-repetitive surge current
t = 8.3 ms
I
FSM
t = 10 ms
t = 8.3 ms
t = 10 ms
Maximum I
2
t for fusing
I
2
t
t = 8.3 ms
t = 10 ms
t = 8.3 ms
Maximum I
2
√t
for fusing
Low level value of threshold voltage
High level value of threshold voltage
Low level value of forward
slope resistance
High level value of forward
slope resistance
Maximum forward voltage drop
I
2
√t
V
F(TO)1
V
F(TO)2
r
f1
r
f2
V
FM
No voltage
reapplied
100 % V
RRM
reapplied
No voltage
reapplied
100 % V
RRM
reapplied
TEST CONDITIONS
180° conduction, half sine wave
VALUES
25
120
40
10
356
373
300
Sinusoidal half wave,
initial T
J
= T
J
maximum
314
636
580
450
410
6360
0.80
0.90
6.80
mΩ
(I >
π
x I
F(AV)
), T
J
= T
J
maximum
I
pk
= 78 A, T
J
= 25 °C, t
p
= 400 µs rectangular wave
5.70
1.30
V
A
2
√s
V
A
2
s
A
UNITS
A
°C
A
K/W
t = 0.1 to 10 ms, no voltage reapplied
(16.7 % x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
maximum
(I >
π
x I
F(AV)
), T
J
= T
J
maximum
(16.7 % x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
maximum
Note
(1)
Available only for avalanche version, all other parameters the same as 25F
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction operating
temperature range
Maximum storage temperature range
Maximum thermal resistance,
junction to case
Maximum thermal resistance,
case to heatsink
SYMBOL
T
J
T
Stg
R
thJC
R
thCS
DC operation
Mounting surface, smooth, flat and greased
Not lubricated threads
Allowable mounting torque
Lubricated threads
Approximate weight
Case style
See dimensions - link at the end of datasheet
TEST CONDITIONS
VALUES
- 65 to 175
- 65 to 200
1.5
K/W
0.5
1.5
+ 0 - 10 %
(13)
1.2
+ 0 - 10 %
(10)
7
0.25
N·m
(lbf · in)
N·m
(lbf · in)
g
oz.
UNITS
°C
DO-203AA (DO-4)
www.vishay.com
2
For technical questions, contact: ind-modules@vishay.com
Document Number: 93506
Revision: 29-Sep-08
25F(R) Series
Standard Recovery Diodes
Vishay High Power Products
(Stud Version), 25 A
ΔR
thJC
CONDUCTION
CONDUCTION ANGLE
180°
120°
90°
60°
30°
SINUSOIDAL CONDUCTION
0.28
0.39
0.50
0.73
1.20
RECTANGULAR CONDUCTION
0.24
0.41
0.54
0.75
1.21
T
J
= T
J
maximum
K/W
TEST CONDITIONS
UNITS
Note
• The table above shows the increment of thermal resistance R
thJC
when devices operate at different conduction angles than DC
Maximum Allowable Case Temperature (°C)
Maximum Allowable Case Temperature (°C)
180
170
160
150
Conduction Angle
180
170
160
150
Conduction Period
25F(R) Series
R
thJC
(DC) = 1.5 K/W
25F(R) Series
R
thJC
(DC) = 1.5 K/W
140
130
120
110
30°
100
0
5
10
15
20
25
30
Average Forward Current (A)
60°
90°
120°
180°
140
130
120
110
100
0
5
10 15 20 25 30 35 40 45
Average Forward Current (A)
30°
90°
60°
120°
180°
DC
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Maximum Average Forward Power Loss (W)
35
30
25
20
15
Conduction Angle
180°
120°
90°
60°
30°
RMS Limit
R
th
K/
W
4K
/W
3
2
W
K/
SA
=1
W
K/
aR
elt
-D
6K
/W
8K
/W
12 K
/W
10
5
0
0
5
10
15
20
25
25F(R) Series
T = 175°C
J
20 K/
W
40 K/W
30
0
25
50
75
100
125
150
175
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 3 - Forward Power Loss Characteristics
Document Number: 93506
Revision: 29-Sep-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
3
25F(R) Series
Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 25 A
Maximum Average Forward Power Loss (W)
25
DC
180°
120°
90°
60°
30°
R
20
6K
/W
th
SA
=
RMS Limit
8K
/W
10 K
/W
4K
/W
-D
elt
aR
15
10
Conduction Period
15 K/
W
20 K/W
5
30 K/W
16F(R) Series
T = 175°C
J
0
5
10
15
20
25
30
0
25
50
75
100
0
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 4 - Forward Power Loss Characteristics
Peak Half Sine Wave Forward Current (A)
350
300
250
200
150
100
50
1
Instantaneous Forward Current (A)
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Initial T = 175°C
J
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
1000
100
T = 25°C
J
T = 175°C
J
10
25F(R) Series
25F(R) Series
1
0
0.5
1
1.5
2
2.5
3
3.5
4
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Instantaneous Forward Voltage (V)
Fig. 5 - Maximum Non-Repetitive Surge Current
Fig. 7 - Forward Voltage Drop Characteristics
Peak Half Sine Wave Forward Current (A)
Transient Thermal Impedance Z
thJC
(K/W)
400
350
300
250
200
150
100
50
0
0.01
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
Initial T
J
= 175°C
No Voltage Reapplied
Rated V
RRM
Reapplied
10
Steady State Value
RthJC = 1.5 K/W
(DC Operation)
1
25F(R) Series
25F(R) Series
0.1
0.001
0.1
1
10
0.01
0.1
1
10
Pulse Train Duration (s)
Square Wave Pulse Duration (s)
Fig. 6 - Maximum Non-Repetitive Surge Current
Fig. 8 - Thermal Impedance Z
thJC
Characteristics
www.vishay.com
4
For technical questions, contact: ind-modules@vishay.com
Document Number: 93506
Revision: 29-Sep-08
25F(R) Series
Standard Recovery Diodes
Vishay High Power Products
(Stud Version), 25 A
ORDERING INFORMATION TABLE
Device code
25
1
1
2
3
-
-
-
F
2
R
3
120
4
M
5
Current rating: Code = I
F(AV)
F = Standard device
None = Stud normal polarity (cathode to stud)
R = Stud reverse polarity (anode to stud)
4
5
-
-
Voltage code x 10 = V
RRM
(see Voltage Ratings table)
None = Stud base DO-203AA (DO-4) 10-32UNF-2A
M = Stud base DO-203AA (DO-4) M5 X 0.8
(not available for avalanche diodes)
LINKS TO RELATED DOCUMENTS
Dimensions
http://www.vishay.com/doc?95311
Document Number: 93506
Revision: 29-Sep-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
5
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