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

POW-R-BLOK

TM

Dual SCR/Diode Isolated Module

500 Amperes / Up to 1600 Volts

Revision Date: 12/04/2002

LD42__50

Maximum Transient Thermal Impedance

.00000

.01000

.02000

.03000

.04000

.05000

.06000

.07000

0.0001

0.001

0.01

0.1

1

10

100

Time - t - Seconds

(Junction to Case, Per Junction)

Maximum On-State Forward Voltage Drop

0.00

1.00

2.00

3.00

4.00

5.00

10

100

1000

10000

100000

Instantaneous On-State Current - Itm / Ifm - Amperes

( Tj = 130 °C )

0

180

360

CONDUCTION ANGLE

M axim um O n-State Power Dissipation

15°

30°

60°

90°

120°

180°

0

100

200

300

400

500

600

700

0

100

200

300

400

500

600

Average On-S tate C urrent - It(av )/ If(av)- Amperes

(Sinusoidal W av eform )

0

180

360

CONDUCTION ANGLE

Maximum Allowable Case Temperature

120°

90°

60°

30°

15°

180°

80

85

90

95

100

105

110

115

120

125

130

0

100

200

300

400

500

600

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

(Sinusoidal Waveform )

0

180

360

CONDUCTION ANGLE

Maximum On-State Power Dissipation

90°

60°

30°

120°

180°

270°

15°

360°

0

100

200

300

400

500

600

700

800

900

0

200

400

600

800

1000

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

(Re ctangular Wave form )

0

180

360

CONDUCTION ANGLE

Maximum Allow able Case Temperature

270°

180°

120°

90°

60°

30°

15°

360°C

60

70

80

90

100

110

120

130

140

0

200

400

600

800

1000

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

(Rectangular W aveform)