25F(R) Series

5

Bulletin I2018 rev. B 09/98

www.irf.com

Fig. 3 - Forward Power Loss Characteristics

25

50

75

100

125

150

175

Maximum Allowable Ambient Temperature (°C)

3

K

/W

4 K

/W

6

K/W

8 K

/W

12 K/W

20 K/W

40 K/W

0

5

10

15

20

25

30

35

0

5

10

15

20

25

30

Average Forward Current (A)

RMS Limit

Conduction Angle

180°

120°

90°

60°

30°

25F(R) Series

T = 175°C

J

Fig. 4 - Forward Power Loss Characteristics

25

50

75

100

125

150

175

Maximum Allowable Ambient Temperature (°C)

2

K/

W

3

K/W

4 K/

W

6

K/W

12 K/W

8 K/

W

20 K/W

40 K/W

0

5

10

15

20

25

30

35

40

45

0

5

10

15

20

25

30

35

40

DC

180°

120°

90°

60°

30°

Average Forward Current (A)

RMS Limit

Conduction Period

25F(R) Series

T = 175°C

J

Fig. 5 - Maximum Non-Repetitive Surge Current

Fig. 6 - Maximum Non-Repetitive Surge Current

50

100

150

200

250

300

350

110

100

Number Of Equal Amplitude Half Cycle Current Pulses (N)

Initial T = 175°C

@ 60 Hz 0.0083 s

@ 50 Hz 0.0100 s

At Any Rated Load Condition And With

Rated V

Applied Following Surge.

RRM

J

25F(R) Series

0

50

100

150

200

250

300

350

400

0.01

0.1

1

10

Pulse Train Duration (s)

Maximum Non Repetitive Surge Current

Initial T = 175°C

No Voltage Reapplied

Rated V

Reapplied

Versus Pulse Train Duration.

J

RRM

25F(R) Series