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250R Datasheet(PDF) 5 Page - Littelfuse

Part No. 250R
Description  POLYFUSE Resettable PTCs Radial Leaded
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Maker  LITTELFUSE [Littelfuse]
Homepage  http://www.littelfuse.com
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250R Datasheet(HTML) 5 Page - Littelfuse

   
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www.littelfuse.com
©2006 Littelfuse
250R Series
Specifications are subject to change without notice.
5
Electronics Designers Guide
POLYFUSE® Resettable PTCs
Radial Leaded
Part Marking System
B
B
C
A
A
Figure 1
E
D
C
E
Marking
Marking
Figure 2
D
F
F
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
Figure 1
E
D
C
E
Marking
Marking
Figure 2
D
F
F
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
Figure 2
Figure 
Part Number
A
B
C
D
E
Physical Characteristics
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Lead (dia)
Material Figure
Max.
Max.
Max.
Max.
Max.
Max.
Min.
Min.
Typ.
Typ.
Inches
mm
250R080
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
1
250R080T
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
1
250R120
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
2
250R120-RA
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
2
250R120-RC
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
2
250R120-RF
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
2
250R120-R1
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
2
250R120-R2
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
2
250R120-R3
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
2
250R120T
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
2
250R145
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
2
250R145-RA
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
2
250R145-RB
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
2
250R145T
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
2
250R180
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
1
250F180T
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
1


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