
www.littelfuse.com
2006 Littelfuse
Electronics Designers Guide
POLYFUSE Resettable PTCs
Radial Leaded
Dimensions
A
C
B
D
E
MARKING
60
050X
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
60
025X
Voltage Rating
Current Rating
Littelfuse
Trademark
60
XXXX
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
Single Sided Marking
0.50A to 3.75A
Double Sided Marking
0.20A to 0.40A
Top Side
Bottom Side
Part Number
A
B
C
D
E
Physical Characteristics
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Lead (dia)
Material
Max.
Typ.
Min.
Max.
Max. Inches mm
60R010
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R020
0.29
7.4
0.46
11.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R025
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R030
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R040
0.30
7.6
0.53
13.5
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R050
0.31
7.9
0.54
13.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R065
0.37
9.4
0.57
14.5
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R075
0.40
10.2
0.59
15
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R090
0.44
11.2
0.62
15.8
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R110
0.51
13
0.72
18.2
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R135
0.53
13.58
0.78
19.8
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R160
0.60
15.36
0.85
21.6
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R185
0.66
16.76
0.91
23
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R250
0.78
19.93
1.03
26.2
0.40
10.2
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R300
0.91
23.11
1.15
29.3
0.40
10.2
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R375
1.04
26.3
1.22
31.1
0.40
10.2
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
A
C
B
D
E
MARKING
60
050X
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
60
025X
Voltage Rating
Current Rating
Littelfuse
Trademark
60
XXXX
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
Single Sided Marking
0.50A to 3.75A
Double Sided Marking
0.20A to 0.40A
Top Side
Bottom Side
Part Marking System
A
C
B
D
E
MARKING
60
050X
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
60
025X
Voltage Rating
Current Rating
Littelfuse
Trademark
60
XXXX
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
Single Sided Marking
0.50A to 3.75A
Double Sided Marking
0.20A to 0.40A
Top Side
Bottom Side
A
C
B
D
E
MARKING
60
050X
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
60
025X
Voltage Rating
Current Rating
Littelfuse
Trademark
60
XXXX
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
Single Sided Marking
0.50A to 3.75A
Double Sided Marking
0.20A to 0.40A
Top Side
Bottom Side
0R Series
Specifications are subject to change without notice.