25FR20 Просмотр технического описания (PDF) - Vishay Semiconductors
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25FR20 Datasheet PDF : 6 Pages
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25F(R) Series
Vishay High Power Products Standard Recovery Diodes
(Stud Version), 25 A
25
DC
180°
20
120°
90°
60°
30°
15
RMS Limit
6 K/W
8 K/W
10 K/W
R
thSA = 4 K/W- Delta R
10
5
0
0
Conduction Period
16F(R) Series
TJ = 175°C
15 K/W
20 K/W
30 K/W
5 10 15 20 25
Average Forward Current (A)
300
25
50
75
100
Maximum Allowable Ambient Temperature (°C)
Fig. 4 - Forward Power Loss Characteristics
350
At Any Rated Load Condition And With
Rated VRRM Applied Following Surge.
300
Initial TJ = 175°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
250
200
150
100
25F(R) Series
50
1
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
1000
100
TJ = 25°C
10
TJ = 175°C
25F(R) Series
1
0 0.5 1 1.5 2 2.5 3 3.5 4
Instantaneous Forward Voltage (V)
Fig. 7 - Forward Voltage Drop Characteristics
400
Maximum Non Repetitive Surge Current
350
Versus Pulse Train Duration.
Initial TJ = 175°C
300
No Voltage Reapplied
Rated VRRM Reapplied
250
200
150
100
50 25F(R) Series
0
0.01
0.1
1
10
Pulse Train Duration (s)
Fig. 6 - Maximum Non-Repetitive Surge Current
10
Steady State Value
RthJC = 1.5 K/W
(DC Operation)
1
25F(R) Series
0.1
0.001
0.01
0.1
1
10
Square Wave Pulse Duration (s)
Fig. 8 - Thermal Impedance ZthJC Characteristics
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4
For technical questions, contact: ind-modules@vishay.com
Document Number: 93506
Revision: 29-Sep-08
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