POLYFUSE
®
Resettable PTCs
Radial Leaded
60R Series
Description
• The 60R series radial leaded device is designed to provide
overcurrent protection for (≤60V) applications where
space is not a concern and resettable protection
is preferred.
Features
• RoHS compliant and
lead-free
• Fast time-to-trip
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
R50082521
• Cured, flame retardant
epoxy polymer insulating
material meets UL 94V-0
requirements
Applications
• USB hubs, ports
and peripherals
• IEEE1394 ports
• Computers & peripherals
• Motor protection
• General electronics
• Automotive applications
• Industrial controls
• Transformers
Electrical Characteristics
I
hold
(A)
0.10
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
3.75
I
trip
(A)
0.20
0.40
0.50
0.60
0.80
1.00
1.30
1.50
1.80
2.20
2.70
3.20
3.70
5.00
6.00
7.50
V
max
(Vdc)
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
I
max
(A)
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
P
d
max.
(W)
0.38
0.41
0.45
0.49
0.56
0.77
0.88
0.92
0.99
1.50
1.70
1.90
2.10
2.50
2.80
3.20
Maximum Time
To Trip
Current
(A)
0.50
1.00
1.25
1.50
2.00
2.50
3.25
3.75
4.50
5.50
6.75
8.00
9.25
12.50
15.00
18.75
Time
(Sec.)
4.00
2.20
2.50
3.00
3.80
4.00
5.30
6.30
7.20
8.20
9.60
11.40
12.60
15.60
19.80
24.00
Resistance
R
min
(Ω)
2.500
1.830
1.250
0.880
0.550
0.500
0.310
0.250
0.200
0.150
0.120
0.090
0.080
0.050
0.040
0.030
R
1max
(Ω)
7.500
4.400
3.000
2.100
1.290
1.170
0.720
0.600
0.470
0.380
0.300
0.220
0.190
0.130
0.100
0.080
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Agency
Approvals
Part Number
60R010
60R020
60R025
60R030
60R040
60R050
60R065
60R075
60R090
60R110
60R135
60R160
60R185
60R250
60R300
60R375
I
hold
= Hold current: maximum current device will pass without tripping in 20°C still air.
I
trip
= Trip current: minimum current at which the device will trip in 20°C still air.
V
max
= Maximum voltage device can withstand without damage at rated current (I max)
I
max
= Maximum fault current device can withstand without damage at rated voltage (V
max
)
P
d
= Power dissipated from device when in the tripped state at 20°C still air.
R
min
= Minimum resistance of device in initial (un-soldered) state.
R
typ
= Typical resistance of device in initial (un-soldered) state.
R
1max
= Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
Caution:
Operation beyond the specified rating may result in damage and possible arcing
and flame.
60R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
Part Number
60R010
60R020
60R025
60R030
60R040
60R050
60R065
60R075
60R090
60R110
60R135
60R160
60R185
60R250
60R300
60R375
0.16
0.31
0.39
0.47
0.62
0.78
1.01
1.16
1.40
1.71
2.09
2.48
2.87
3.88
4.65
5.81
60R Series
-20°C
0°C
23°C
40°C
Hold Current (A)
50°C
60°C
70°C
85°C
0.14
0.27
0.34
0.41
0.54
0.68
0.88
1.02
1.22
1.50
1.84
2.18
2.52
3.40
4.08
5.10
0.12
0.24
0.30
0.36
0.48
0.60
0.77
0.89
1.07
1.31
1.61
1.90
2.20
2.98
3.57
4.46
0.10
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
3.75
0.08
0.16
0.20
0.24
0.32
0.41
0.53
0.61
0.73
0.89
1.09
1.30
1.50
2.03
2.43
3.04
0.07
0.14
0.18
0.22
0.29
0.36
0.47
0.54
0.65
0.79
0.97
1.15
1.33
1.80
2.16
2.70
0.06
0.13
0.16
0.19
0.25
0.32
0.41
0.47
0.57
0.69
0.85
1.01
1.17
1.58
1.89
2.36
0.05
0.11
0.14
0.16
0.22
0.27
0.35
0.41
0.49
0.59
0.73
0.86
1.00
1.35
1.62
2.03
0.04
0.08
0.10
0.12
0.16
0.20
0.26
0.30
0.36
0.44
0.54
0.64
0.74
1.00
1.20
1.50
Average Time Current Curves
0.250A
0.300A
0.400A
0.500A
0.200A
0.650A
0.750A
0.900A
1.10A
1.35A
1.60A
1.85A
2.50A
3.00A
3.75A
Temperature Rerating Curve
100000
170%
150%
10000
Percentage of Rated Current
130%
110%
90%
70%
50%
30%
1000
TIME IN SECONDS
100
10
10%
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.16
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
60R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Soldering Parameters - Wave Soldering
Refer to the condition
recommended by the
flux manufacturer.
Temperature (°C)
Pre-Heating Zone
260
220
Soldering
Cooling
Max. ramping rate
should not exceed
4°C/Sec.
Max. solder temperature
should not exceed
260°C
Cooling by natural
convection in air.
190
160
Preheating
Soldering Zone
Cooling Zone
0
60 min.
5 max.
Time(s)
Physical Specifications
Lead Material
Soldering
Characteristics
Insulating Material
Device Labeling
.20-.40A: Tin-plated copper clad steel
.50-3.75A: Tin-plated copper
Solderability per MIL-STD-202,
Method 208E
Cured, flame retardant epoxy polymer
meets UL94V-0 requirements.
Marked with LF, voltage, current rating,
and date code.
Environmental Specifications
Operating/Storage
Temperature
Maximum Device Surface
Temperature in Tripped State
Passive Aging
Humidity Aging
-40°C to +85°C
125°C
+85°C, 1000 hours
±5% typical resistance change
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
+85°C to -40°C 10 times
±5% typical resistance change
MIL-STD-202, Method 215F
Thermal Shock
Solvent Resistance
60R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Dimensions
Sided Marking
Double
0.20A to 0.40A
Top Side
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
60
A
Voltage Rating
Current Rating
MARKING
E
025X
B
D
Bottom Side
Littelfuse
Trademark
XXXX
60
A
Part Number
60R010
60R020
60R025
60R030
60R040
60R050
60R065
60R075
60R090
60R110
60R135
60R160
60R185
60R250
60R300
60R375
Inches
Max.
0.29
0.29
0.29
0.29
0.30
0.31
0.37
0.40
0.44
0.51
0.53
0.60
0.66
0.78
0.91
1.04
mm
Max.
7.4
7.4
7.4
7.4
7.6
7.9
9.4
10.2
11.2
13
13.58
15.36
16.76
19.93
23.11
26.3
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
C
C
mm
Max.
12.7
11.7
12.7
12.7
13.5
13.7
14.5
15
15.8
18.2
19.8
21.6
23
26.2
Inches
Typ.
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.40
0.40
050X
XXXX
B
D
mm
Typ.
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
10.2
Inches
Min.
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
mm
Min.
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
7.6
Max.
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
E
Inches
mm
Max.
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
Littelfuse
Trademark
3.1
Physical Characteristics
Lead (dia)
Inches
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
mm
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.81
0.81
0.81
0.81
0.81
0.81
60
Inches
Max.
0.50
0.46
0.50
0.50
0.53
0.54
0.57
0.59
0.62
0.72
0.78
0.85
0.91
1.03
Material
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Voltage Rating
Current Rating
Sn/Cu
Single Sided Marking
0.20
to 3.75A
5.1
0.50A
Double Sided Marking
0.03
0.20A
0.81
to 0.40A
Top Side
Littelfuse
Trademark
1.15
29.3
60
0.30
Rating
7.6
Voltage
Current
0.30
Rating
7.6
Date Code
(Contact Littelfuse
0.30
7.6
for additional
information)
3.1
10.2
10.2
025X
1.22
31.1
0.40
3.1
Sn/Cu
Part Marking System
Single Sided Marking Marking
Single Sided
0.50A to 3.75A to 3.75A
0.50A
Double Sided Marking Marking
Double Sided
0.20A to 0.40A to 0.40A
0.20A
Top Side Top Side
Littelfuse
Littelfuse
Trademark
Trademark
60
60
Bottom Side
Voltage Rating Rating
Voltage Littelfuse
Current Rating Rating
Current Trademark
XXXX
A
A
E
E
050X
XXXX
050X
XXXX
Voltage Rating Rating
Voltage
Current Rating Rating
Current
Date Code Code
Date
(Contact (Contact Littelfuse
Littelfuse
for additional
for additional
information)
information)
Littelfuse
Littelfuse
Trademark
Trademark
025X
60
025X
60
60
MARKING
MARKING
B
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
B
D
Bottom Side
Bottom Side
Littelfuse
Littelfuse
Trademark
Trademark
XXXX
D
60
XXXX
60
Voltage Rating Rating
Voltage
Date Code Code
Date
(Contact (Contact Littelfuse
Littelfuse
for additional
for additional
information)
information)
C
C
60R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Part Numbering System
60 R 250
X MR
PACKAGING STYLE
BLANK:
Bulk
R:
Tape & Ammo
QUANTITY CODE:
F=200 H=100 M=1000 P=2000 U=500
TYPE: X (60VDC)
I
HOLD
CURRENT CODE (SEE TABLE BELOW)
SERIES
R: RADIAL
VOLTAGE RATING (VDC)
Packaging
I
hold
(A)
0.10
0.20
0.30
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
3.75
I
hold
Code
010
020
030
040
050
065
075
090
110
135
160
185
250
300
375
Packaging
Option
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Tape and Ammo
Bulk
Bulk
Quantity
500
2000
500
2000
500
2000
500
2000
500
2000
500
2000
500
2000
500
2000
500
1000
200
1000
200
1000
200
1000
200
1000
200
100
Quantity &
Packaging Codes
U
PR
U
PR
U
PR
U
PR
U
PR
U
PR
U
PR
U
PR
U
MR
F
MR
F
MR
F
MR
F
MR
F
H
60R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
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