PRELIMINARY

Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272

Dual SCR Module

700 Amperes / Up to 1800 Volts

10/04/2002

PD43__07

Maximum Transient Thermal Impedance

0.00

0.01

0.02

0.03

0.04

0.05

0.06

0.001

0.01

0.1

1

10

100

Time - t - Seconds

(Junction To Case)

Typical On-State Forward Voltage Drop

0

0.5

1

1.5

2

2.5

3

10

100

1000

10000

Instantaneous On-State Current - Itm - Amperes

(Tj = 125C)

0

180

360

CONDUCTION ANGLE

Maximum Allowable Case Temperature

120°

90°

60°

30°

15°

180°

70

80

90

100

110

120

130

0

100

200

300

400

500

600

700

800

Average On-State Current - It(av) - Amperes

(Sinusoidal Waveform)

0

180

360

CONDUCTION ANGLE

Maximum On-State Power Dissipation

15°

30°

60°

90°

120°

180°

0

100

200

300

400

500

600

700

800

900

1000

0

100

200

300

400

500

600

700

800

Average On-State Current - It(av) - Amperes

(Sinusoidal Waveform)

0

180

360

CONDUCTION ANGLE

Maximum On-State Power Dissipation

360°

15°

270°

180°

120°

30°

60°

90°

0

200

400

600

800

1000

1200

1400

0

200

400

600

800

1000

1200

1400

Average On-State Current - It(av) - Amperes

(Rectangular Waveform)

0

180

360

CONDUCTION ANGLE

Maximum Allowable Case Temperature

270°

180°

120°

90°

60°

30°

15°

360°

50

60

70

80

90

100

110

120

130

0

200

400

600

800

1000

1200

1400

Average On-State Current - It(av) - Amperes

(Rectangular Waveform)