ST280S Series

6

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Bulletin I25161 rev. C 03/03

3000

3500

4000

4500

5000

5500

6000

6500

7000

110

100

Numb er Of Eq ua l Amp litud e Ha lf Cyc le Current Pulses (N)

ST280SSeries

Initial T = 125°C

@60 Hz 0.0083 s

@50 Hz 0.0100 s

J

At Any Rated Load Condition And With

Rated V

Applied Following Surge.

RRM

3000

3500

4000

4500

5000

5500

6000

6500

7000

110

100

Number Of Equal Amplitude Ha lf Cyc le Current Pulses (N)

ST280SSeries

Initial T = 125°C

@60 Hz 0.0083 s

@50 Hz 0.0100 s

J

At Any Rated Load Condition And With

Rated V

Applied Following Surge.

RRM

Fig. 5 - Maximum Non-Repetitive Surge Current

Fig. 6 - Maximum Non-Repetitive Surge Current

25

50

75

100

125

Maximum Allowable Ambient Temperature (°C)

0.1

6

K/

W

0.2

K/

W

0.2

5

K/W

0.3

K

/ W

0.4

K/ W

0.6

K/ W

0.8 K/

W

1.2 K/W

0

50

100

150

200

250

300

350

0

50

100

150

200

250

300

180°

120°

90°

60°

30°

RMSLimit

Conduc tion Angle

Average On-state Current (A)

ST280SSeries

T = 125°C

J

25

50

75

100

125

Maximum Allowable Ambient Temperature (°C)

0.0

8

K/

W

0.1

2

K/

W

0.1

6

K/W

0.2

K/W

0.3

K/ W

0.4 K

/ W

0.6 K/W

1 K/W

0

50

100

150

200

250

300

350

400

450

500

0

50 100 150 200 250 300 350 400 450

DC

180°

120°

90°

60°

30°

RMSLimit

Conduc tion Period

Average On-state Current (A)

ST280SSeries

T = 125°C

J

Fig. 3 - On-state Power Loss Characteristics

Fig. 4 - On-state Power Loss Characteristics