POLYFUSE
®
Resettable PTCs
Radial Leaded
30R Series
Description
• The 30R series radial leaded device is designed to
provide overcurrent protection for low voltage (≤30V)
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
• Computers & peripherals
• Motor protection
• General electronics
• Automotive applications
Electrical Characteristics
I
hold
(A)
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
I
trip
(A)
1.80
2.20
2.70
3.20
3.70
5.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
V
max
(Vdc)
30
30
30
30
30
30
30
30
30
30
30
30
30
I
max
(A)
40
40
40
40
40
40
40
40
40
40
40
40
40
P
d
max.
(W)
0.6
0.7
0.8
0.9
1.0
1.2
2.0
2.5
3.0
3.5
3.8
4.0
4.2
Maximum Time
To Trip
Current
(A)
4.50
5.50
6.75
8.00
9.25
12.50
15.00
20.00
25.00
30.00
35.00
40.00
40.00
Time
(Sec.)
5.90
6.60
7.30
8.00
8.70
10.30
10.80
12.70
14.50
16.00
17.50
18.80
20.00
Resistance
R
min
(Ω)
0.070
0.050
0.040
0.030
0.030
0.020
0.020
0.010
0.010
0.005
0.005
0.005
0.005
R
1max
(Ω)
0.220
0.170
0.130
0.110
0.090
0.070
0.080
0.050
0.050
0.040
0.030
0.020
0.020
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
30R090
30R110
30R135
30R160
30R185
30R250
30R300
30R400
30R500
30R600
30R700
30R800
30R900
I
hold
= Hold current: maximum current device will pass without tripping in 23°C still air.
I
trip
= Trip current: minimum current at which the device will trip in 23°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 23°C still air.
R
min
= Minimum resistance of device in initial (un-soldered) state.
R
1max
= Maximum resistance of device at 23°C measured one hour after tripping.
Caution:
Operation beyond the specified rating may result in damage and possible arcing
and flame.
30R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2007 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
Part Number
30R090
30R110
30R135
30R160
30R185
30R250
30R300
30R400
30R500
30R600
30R700
30R800
30R900
1.31
1.60
1.96
2.32
2.68
3.63
4.35
5.80
7.25
8.70
10.15
11.60
13.05
30R Series
-20°C
0°C
23°C
40°C
Hold Current (A)
50°C
60°C
70°C
85°C
1.17
1.43
1.76
2.08
2.41
3.25
3.90
5.20
6.50
7.80
9.10
10.40
11.70
1.04
1.27
1.55
1.84
2.13
2.88
3.45
4.60
5.75
6.90
8.05
9.20
10.35
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
0.75
0.91
1.12
1.33
1.54
2.08
2.49
3.32
4.15
4.98
5.81
6.64
7.47
0.69
0.85
1.04
1.23
1.42
1.93
2.31
3.08
3.85
4.62
5.39
6.16
6.93
0.61
0.75
0.92
1.09
1.26
1.70
2.04
2.72
3.40
4.08
4.76
5.44
6.12
0.55
0.67
0.82
0.98
1.13
1.53
1.83
2.44
3.05
3.66
4.27
4.88
5.49
0.47
0.57
0.70
0.83
0.96
1.30
1.56
2.08
2.60
3.12
3.64
4.16
4.68
Average Time Current Curves
0.900A
1.10A
1.35A
1.60A
1.85A
2.50A
3.00A
4.00A
5.00A
6.00A
7.00A
8.00A
9.00A
Temperature Rerating Curve
170%
150%
Percentage of Rated Current
130%
110%
90%
70%
50%
30%
10%
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
100000
10000
1000
TIME IN SECONDS
100
10
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.
30R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2007 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
0.90-2.50A: Tin-plated copper clad steel
3.00-9.00A: 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
No change
Lead Material
Soldering
Characteristics
Insulating Material
Device Labeling
Thermal Shock
Solvent Resistance
30R Series
Specifications are subject to change without notice.
3
Electronics Designers Guide
www.littelfuse.com
©2007 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Dimensions
A
Littelfuse
Trademark
E
110U
XXXX
30
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
MARKING
B
D
C
A
Inches mm
Max.
Max.
0.29
7.40
0.29
0.35
0.35
0.40
0.45
0.45
0.55
0.55
0.65
0.75
0.85
0.95
7.40
8.90
8.90
10.20
11.40
11.40
14.00
14.00
16.50
19.10
21.60
24.10
B
Inches mm
Max.
Max.
0.48
12.20
0.56
0.53
0.60
0.62
0.72
0.76
0.87
1.01
1.06
1.13
1.22
1.24
14.20
13.50
15.20
15.70
18.30
19.20
22.00
25.60
26.80
28.60
31.10
31.60
C
Inches mm
Typ.
Typ.
0.20
5.10
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.40
0.40
0.40
0.40
0.40
5.10
5.10
5.10
5.10
5.10
5.10
5.10
10.20
10.20
10.20
10.20
10.20
D
Inches mm
Min.
Min.
0.30
7.60
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
7.60
7.60
7.60
7.60
7.60
7.60
7.60
7.60
7.60
7.60
7.60
7.60
E
Inches mm
Max.
Max.
0.12
3.00
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
Physical Characteristics
Lead (dia)
Material
Inches mm
0.02
0.51
Sn/CuFe
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
0.51
0.51
0.51
0.51
0.51
0.81
0.81
0.81
0.81
0.81
0.81
0.81
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Part Number
30R090
30R110
30R135
30R160
30R185
30R250
30R300
30R400
30R500
30R600
30R700
30R800
30R900
Part Marking System
Littelfuse
Trademark
A
E
110U
XXXX
30
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
MARKING
B
D
C
30R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2007 Littelfuse
POLYFUSE
®
Resettable PTCs
Radial Leaded
Part Numbering System
30 R 250
U PR
PACKAGING STYLE
BLANK:
Bulk
R:
Tape & Ammo
QUANTITY CODE:
F=200 H=100 M=1000 P=2000 U=500
TYPE: U (30VDC)
I
HOLD
CURRENT CODE (SEE TABLE BELOW)
SERIES
R: RADIAL
VOLTAGE RATING (VDC)
Packaging
I
hold
(A)
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
I
hold
Code
090
110
135
160
185
250
300
400
500
600
700
800
900
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
Bulk
Quantity
500
2000
500
2000
500
2000
500
2000
500
2000
500
2000
500
2000
200
1000
200
1000
200
1000
200
1000
100
100
Quantity &
Packaging Codes
U
PR
U
PR
U
PR
U
PR
U
PR
U
PR
U
PR
F
MR
F
MR
F
MR
F
MR
H
H
30R Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2007 Littelfuse
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