Littelfuse Sxx10x Series - Manual (Page 4)

270
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor ® brand Thyristors
10 Amp Sensitive & Standard SCRs
Sxx10xSx & Sxx10x Series
Thermal Resistances
Symbol Parameter Value Unit
R
T(J-C)
Junction to case (AC)
Sxx10RSy 1.6
°C/W
Sxx10LSy 3.0
Sxx10VSy 1.7
Sxx10DSy 1.45
Sxx10R 1.6
Sxx10L 3.0
Sxx10V 1.7
Sxx10D 1.45
R
T(J-A)
Junction to ambient
Sxx10RSy 40
°C/W
Sxx10LSy 65
Sxx10VSy 85
Sxx10R 40
Sxx10L 50
Sxx10V 70
Note: xx = voltage, y = sensitivity
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature (Sensitive SCR)
Figure 2: Normalized DC Gate Trigger Current
vs. Junction Temperature (Standard SCR)
0.0
1.0
2.0
3.0
4.0
-40 -15 10 35 60 85 110
Junction Temperature (T
J
) -- (°C)
Ratio of I
GT
/ I
GT
(T
J
= 2
5
°C)
125
0.0
1.0
2.0
3.0
4.0
-40 -15 10 35 60 85 110
Junction Temperature (T
J
) -- (°C)
Ratio of I
GT
/ I
GT
(T
J
= 2
5
°C)