Poly-fuse, Resettable ptcs, Radial leaded > 250r series – Littelfuse 250R Series User Manual
Page 5: 250r s eries
101
Revised: August 31, 2011
POLY-FUSE
®
Resettable PTCs
© 2011 Littelfuse, Inc
250R Series
Radial Leaded > 250R Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/250R.html for current information.
250R S
eries
Part Marking System
250
080
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
250
120
XXXX
Dimensions
B
B
C
A
A
E
D
C
E
D
F
F
Figure 2
Figure 1
Part Number
Figure
A
B
C
D
E
Physical Characteristics
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Lead (dia)
Material
Max.
Max.
Max.
Max.
Max.
Max.
Min.
Min.
Typ.
Typ.
Inches
mm
250R080
1
0.23
5.8
0.39
9.9
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R080T
1
0.23
5.8
0.39
9.9
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120
2
0.26
6.5
0.43
11
0.15
3.8
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-RA
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-RC
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-RF
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-R1
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-R2
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120-R3
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R120T
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R145
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R145-RA
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R145-RB
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R145T
2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R180
1
0.37
9.5
0.47
12
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
250R180T
1
0.37
9.5
0.47
12
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu