SCRs Data Sheets
http://www.littelfuse.com E6 - 8 ©2004 Littelfuse, Inc.
+1 972-580-7777 Thyristor Product Catalog
Figure E6.7 Maximum Allowable Case Temperature versus
RMS On-state Current (10 A, 12 A, 16 A, and 20 A)
Figure E6.8 Maximum Allowable Case Temperature versus
RMS On-state Current (25 A and 35 A)
Figure E6.9 Maximum Allowable Case Temperature versus
RMS On-state Current (40 A through 70 A)
Figure E6.10 Maximum Allowable Case Temperature versus
RMS On-state Current (55 A and 65 A)
Figure E6.11 Maximum Allowable Case Temperature versus
Average On-state Current (1 A)
Figure E6.12 Maximum Allowable Case Temperature versus
Average On-state Current (8 A, 10 A, and 12 A)
048121620
50
60
70
80
90
100
110
120
130
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawing
10 A TO-220
(Non-isolated)
15 A TO-220
(Isolated)
20 A TO-220 (Isolated)
16 A TO-220 (Non-isolated)
and TO-263
10 A TO-251 and 10 A TO-252
12 A TO-220 (Non-isolated)
TO-251 and TO-252
0 4 8 12162024283236
50
60
70
80
90
100
110
120
130
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
˚
CASE TEMPERATURE: Measure
as shown on dimensional drawings
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
35 A TO-218
(Isolated)
25 A TO-220
(Non-isolated)
and TO-263
25 A TO-220
(Isolated)
0 10203040506070
50
60
70
80
90
100
110
120
130
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable
Case Temperature (T
C
) – ˚C
65 A TO-218X
(Isolated)
55 A TO-218X
(Non-isolated)
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawings
40 A TO-220
(Non-isolated)
and TO-263
70 A TO-218X
(Non-isolated)
010203040
50
60
70
80
90
100
110
120
130
RMS On-state Current [I
T(RMS)
] – Amps
Maximum Allowable Case Temperature (T
C
) – ˚C
50 60 70 75
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawings
* The R, K or M package rating
is intended only for high surge
condition use and is not recommended
for >50 A rms continuous
current use, since narrow pin lead
temperature can exceed PCB solder
melting temperature. J or W packages
are recommended for >50 A rms
continuous current requirements.
65 A TO-218AC
(Isolated) *
55 A TO-218AC
(Non-isolated) *
55 A TO-220
(Non-isolated)
and TO-263 *
0 0.2 0.4 0.6 0.8
50
60
70
80
90
100
110
120
130
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawings
Average On-state Current [I
T(AV)
] – Amps
Maximum Allowable Case Temperature (T
C
) – ˚C
1 A Devices
80
10 2345678
90
100
110
120
130
Average On-state Current [I
T(AV)
] – Amps
Maximum Allowable Case Temperature (T
C
) – ˚C
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180˚
CASE TEMPERATURE: Measure as
shown on dimensional drawings
6 A TO-220
6 A TO-202
6 A TO-251
6 A TO-252
8 A TO-220 (Isolated)
8 A TO-202
10 A TO-220 (Isolated)
and 10 A TO-202
8 A TO-220
(Non-isolated)
12 A TO-220 (Non-isolated)
and TO-251 and TO-252
10 A TO-251
10 A TO-252
10 A TO-220
(Non-isolated)
