POLYFUSE
®
Resettable PTCs
Radial Leaded > 30R Series
30R Series
Description
provide overcurrent protection for low voltage (≤30V)
applications where space is not a concern and resettable
protection is preferred.
Features
epoxy polymer insulating
material meets UL 94V-0
requirements
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
Free and Halogen-Free*
Applications
and peripherals
R50119318
Electrical Characteristics
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
Part Number
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
typ.
(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
Agency
Approvals
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.
* Effective January 1, 2010, all 30R PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 30R PTC products may continue to be sold, until supplies are depleted.
© 2010 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/30R.html for current information.
75
30R Series
Revised: July 12, 2010
30R Series
LITTELFUSE [ LITTELFUSE ]
