Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 15697 (724) 925-7272
POW-R-BLOK
TM
Dual SCR Isolated Module
500 Amperes / 1800 Volts
Revision Date: 5/3/2002
LD431850
Typical On-State Forward Voltage Drop
0
0.5
1
1.5
2
2.5
3
3.5
4
10 100 1000 10000
Instantaneous On-State Current - Itm - Amperes
On-State Voltage - Vtm - Volts
(Tj = 125C)
Maximum Transient Thermal Impedance
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.001 0.01 0.1 1 10 100
Time - t - Seconds
Thermal Impedance - Rjc - °C/W
(Junction To Case)
0
180 360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
15°
30°
60°
90°
120°
180°
0
100
200
300
400
500
600
700
0 50 100 150 200 250 300 350 400 450 500
Average On-State Current - It(av) - Amperes
Max. Power Dissipation Per SCR - Watts_
(Sinusoidal Waveform)
0
180
360
CONDUCTION ANGLE
Maximum Allowable Case Temperature
120°
90°
60°
30°
15°
180°
80
90
100
110
120
130
0 100 200 300 400 500 600
Average On-State Current - It(av) - Amperes
Max. Case Temperature - Tcase -°C_
(Sinusoidal Waveform)
0
180
360
CONDUCTION ANGLE
Maximum On-State Power Dissipation
360°
15°
270°
180°
120°
30°
60°
90°
0
100
200
300
400
500
600
700
800
900
0 100 200 300 400 500 600 700 800 900
Average On-State Current - It(av) - Amperes
Max. Power Dissipation Per SCR - Watts_
(Rectangular Waveform)
0
180
360
CONDUCTION ANGLE
Maximum Allowable Case Temperature
270°
180°
120°
90°
60°
30°
15°
360°
60
70
80
90
100
110
120
130
0 100 200 300 400 500 600 700 800 900
Average On-State Current - It(av) - Amperes
Max. Case Temperature - Tcase -°C_
(Rectangular Waveform)
