Data Sheets
SCRs
120
Maximum Allowable
Ambient Temperature (T
A
) – ˚C
8 A TO-220 (Non-isolated)
80
Normalized Peak Current
100
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
FREE AIR RATING
1.0
0.8
0.6
0.4
0.2
0
25
50
75
100
125
6 A TO-220 (Isolated) and
6 A TO-202 (Types 1 and 3)
60
1 A TO-92
40
6 A TO-202
(Types 2 and 4)
and 6 A TO-251
20
0
0.2
0.4 0.6 0.8
1.0
1.2 1.4
1.6 1.8 2.0 2.2
Case Temperature (T
C
) – ˚C
RMS On-state Current [I
T(RMS)
] – Amps
Figure E6.1 Maximum Allowable Ambient Temperature versus
RMS On-state Current
Figure E6.4 Peak Capacitor Discharge Current Derating
(6 A through 55 A)
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
FREE AIR RATING
130
120
Maximum Allowable
Ambient Temperature (T
A
) – ˚C
100
Maximum Allowable
Case Temperature (T
C
) – ˚C
110
100
90
80
70
60
50
0
0.2
0.4
0.6
0.8
1.0
1.2
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawing
8 A TO-220 (Non-isolated)
80
1 A Devices
1 A TO-92
60
6 A TO-220 (Isolated) and
6 A TO-202 (Types 1 and 3)
40
6 A TO-202
(Types 2 and 4)
and 6 A TO-251
20
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Average On-state Current [I
T(AV)
] – Amps
RMS On-state Current [I
T(RMS)
] – Amps
Figure E6.2 Maximum Allowable Ambient Temperature versus
Average On-state Current
Figure E6.5 Maximum Allowable Case Temperature versus
RMS On-state Current (1 A)
130
Peak Discharge Current (I
TM
) – Amps
1000
120
55 A Devices
8 A TO-220 (Non-isolated)
TO-251 and TO-252
10 A TO-220 (Isolated)
and 10 A TO-202
Maximum Allowable
Case Temperature (T
C
) – ˚C
110
6 A Devices
100
90
80
70
60
50
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180º
CASE TEMPERATURE: Measure as
shown on dimensional drawings
0
2
4
6
8
300
200
25 A Devices
15 A and 16 A
Devices
8 A TO-220 (Isolated)
and 8 A TO-202
100
6 A to 10 A Devices
12 A Devices
50
I
TM
t
w
t
w
= 5 times constants
20
0.5
1.0
2.0
5.0
10
20
50
10
12
Pulse Current Duration (t
w
) – ms
RMS On-state Current [I
T(RMS)
] – Amps
Figure E6.3 Peak Capacitor Discharge Current (6 A through 55 A)
Figure E6.6 Maximum Allowable Case Temperature versus
RMS On-state Current (6 A, 8 A, and 10 A)
©2002 Teccor Electronics
Thyristor Product Catalog
E6 - 7
http://www.teccor.com
+1 972-580-7777
TECCOR [ TECCOR ELECTRONICS ]
