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

POW-R-BLOK

TM

Dual SCR Isolated Module

90 Amperes / Up to 1800 Volts

Revision Date: 04/28/2009

CD43__90B

Maximum On-State Forward Voltage Drop

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

10

100

1000

Instantaneous On-State Current - Itm - Amperes

( Tj = 125 °C )

Maximum Transient Thermal Impedance

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.001

0.01

0.1

1

10

100

Time - t - Seconds

(Junction to Case)

0

180

360

CONDUCTION ANGLE

Maximum On-State Power Dissipation

15°

30°

60°

90°

120°

180°

0

20

40

60

80

100

120

140

0

2040

6080

100

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

(Sinusoidal Waveform)

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

0

10

2030

40

506070

8090

100

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

(Sinusoidal Waveform)

0

180

360

CONDUCTION ANGLE

Maximum On-State Power Dissipation

90°

60°

30°

120°

180°

270°

15°

360°

0

20

40

60

80

100

120

140

160

180

0

10

20

30

40

50

60

70

80

90 100 110 120 130 140 150

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°

75

80

85

90

95

100

105

110

115

120

125

0

10

20304050

60708090 100 110 120 130 140 150

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

(Rectangular Waveform)