
CD42__90B
CD47__90B
Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK TM
Dual SCR/Diode Isolated Module
90 Amperes / Up to 1800 Volts
4
3.5
3
2.5
2
Maximum On-State Forward Voltage Drop
( Tj = 125 °C )
0.30
0.25
0.20
0.15
Maximum Transient Thermal Impedance
(Junction to Case)
1.5
0.10
1
0.5
0.05
0
10
100
1000
0.00
0.001
0.01
0.1
1
10
100
140
130
Instantaneous On-State Current - Itm / Ifm - Amperes
Maximum On-State Power Dissipation
(Sinusoidal Waveform)
180°
125
Time - t - Seconds
Maximum Allowable Case Temperature
(Sinusoidal Waveform)
120
110
100
90
80
70
15°
30°
60°
90°
120°
120
115
110
105
0 180 360
CONDUCTION ANGLE
60
50
40
30
20
0 180 360
CONDUCTION ANGLE
100
95
90
15°
30°
60°
90°
10
0
85
120°
180°
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
180
170
Average On-State Current - It/If(av) - Amperes
Maximum On-State Power Dissipation
(Rectangular Waveform)
125
Average On-State Current - It/If(av) - Amperes
Maximum Allowable Case Temperature
(Rectangular Waveform)
160
150
140
180°
270°
360°
120
115
130
120
110
100
60°
90°
120°
110
105
0 180 360
CONDUCTION ANGLE
90
80
70
30°
100
95
60
50
40
30
20
10
0 180 360
CONDUCTION ANGLE
90
85
80
30°
60°
90°
120°
180°
270°
360°
0
75
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
Average On-State Current - It/If(av) - Amperes
Average On-State Current - It/If(av) - Amperes
Revision Date: 04/28/2009