Data Sheets Sensitive SCRs
©2004 Littelfuse, Inc. E5 - 7 http://www.littelfuse.com
Thyristor Product Catalog +1 972-580-7777
Figure E5.4 Maximum Allowable Case Temperature versus
Average On-state Current
Figure E5.5 Maximum Allowable Ambient Temperature versus
On-state Current
Figure E5.6 Maximum Allowable Ambient Temperature versus
RMS On-state Current
Figure E5.7 Maximum Allowable Ambient Temperature versus
Average On-state Current
Figure E5.8 Maximum Allowable Case Temperature versus
RMS On-state Current
Figure E5.9 Maximum Allowable Case Temperature versus
Average On-state Current
0 0.5 1.0 1.5 2.0 2.5 3.0
50
60
70
80
90
100
110
120
130
Average On-state Current [I
T(AV)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
0.95
40
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
CASE TEMPERATURE: Measured
as Shown on Dimensional Drawing
1.65 1.9 2.54
T106 and T107
Type 1 and 3
T106 and T107
Type 2 and 4
TCR22
Devices
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
140
120
100
80
60
40
20
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
FREE AIR RATING
1.5 A and JEDEC
2N Series I
T(AV)
and EC Series I
T(AV)
On-state Current – Amps
Maximum Allowable Ambient Temperature (T
A
) – ˚C
1.5 A Devices
and JEDEC
2N Series I
T(RMS)
EC Series I
T(RMS)
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
140
120
100
80
60
40
20
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable
Ambient Temperature (T
A
) – ˚C
2.0
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
FREE AIR RATING
TO-220
T106/T107 TO-202
Type 1 and 3
T106/T107 TO-202
Type 2 and 4
and TO-251
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
20
40
60
80
100
120
140
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
FREE AIR RATING
Average On-state Current [I
T(AV)
] – Amps
Maximum Allowable
Ambient Temperature (T
A
) – ˚C
TO-220
T106/T107 TO-202
Type 1 and 3
T106/T107 TO-202
Type 2 and 4
and TO-251
80
2468100
85
90
95
100
105
110
115
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
TEMPERATURE: Measured as
Shown on Dimensional Drawings
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
6 A TO-220
and TO-202
8 A TO-220
and TO-202
10 A TO-220
and TO-202
6 A TO-251
and TO-252
8 A TO-251
and TO-252
10 A TO-251
and TO-252
80
134560
85
90
95
100
105
110
Average On-state Current [I
T(AV)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
72
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
CASE TEMPERATURE: Measured
as Shown on Dimensional Drawings
6 A TO-220
and TO-202
8 A TO-220
and TO-202
10 A TO-220
and TO-202
6 A TO-251
and TO-252
8 A TO-251
and TO-252
10 A TO-251
and TO-252