Document Number: 94417

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Revision: 02-Jul-10

5

VSK.170PbF, VSK.250PbF Series

SCR/SCR and SCR/Diode

(MAGN-A-PAK Power Modules), 170 A/250 A

Vishay Semiconductors

Fig. 5 - Maximum Non-Repetitive Surge Current

Fig. 6 - Maximum Non-Repetitive Surge Current

Fig. 7 - On-State Power Loss Characteristics

Fig. 8 - On-State Power Loss Characteristics

2000

2500

3000

3500

4000

4500

5000

110

100

Number Of Equal Amplitude Half Cycle Current Pulses (N)

At Any Rated Load Condition And With

Rated V

VSK.170.. Series

Per Junction

Initial T

@ 60 Hz 0.0083 s

@ 50 Hz 0.0100 s

2000

2500

3000

3500

4000

4500

5000

0.01

0.1

1

Pulse Train Duration (s)

Maximum Non Repetitive Surge Curren t

Versus Pulse Train Duration. Control

Of Conduction May Not Be Maintained .

Initial T

No Voltage Reapplied

Rated V

VSK.170.. Series

Per Junction

020

40

60

80

100

120

0.3

5 K

/W

0.3

K/W

0.2

5

K/

W

0.2

K/

W

Maximum Allowable Ambient Temperature (°C)

0

50

100

150

200

250

300

350

400

0

50

100 150 200 250 300 350 400

180°

120°

90°

60°

30°

Total RMS Output Current (A)

Conduction Angle

VSK.170.. Series

Per Module

T

0

20406080

100

120

Maximum Allowable Ambient Temperature (°C)

0.0

8

K/

W

0.1

K/

W

0.1

2 K

/ W

0.1

6 K

/ W

0.2

K/ W

0.25

K/ W

0.35 K

/ W

0

100

200

300

400

500

600

700

800

900

1000

0

50

100

150

200

250

300

350

Total Output Current (A)

180°

(Sine)

180°

(Rect)

2 x VSK.170.. Series

Single Phase Bridge

Connected

T