Littelfuse 30R Series - Manual

75
Revised: July 12, 2010
POLYFUSE ® Resettable PTCs
© 2010 Littelfuse, Inc
30R Series
Radial Leaded > 30R Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/30R.html for current information.
30R S
eries
30R Series
t

5IF
3
4FSJFT
SBEJBM
MFBEFE
EFWJDF
JT
EFTJHOFE
UP

provide overcurrent protection for low voltage (≤30V)
applications where space is not a concern and resettable
protection is preferred.
Electrical Characteristics
Part Number
I
hold
(A)
I
trip
(A)
V
max
(Vdc)
I
max
(A)
P
d
typ.
(W)
Maximum Time
To Trip
Resistance
Agency
Approvals
Current
(A)
Time
(Sec.)
R
min
(Ω)
R
1max
(Ω)
30R090 0.90 1.80 30 40 0.6 4.50 5.90 0.070 0.220 X X
30R110 1.10 2.20 30 40 0.7 5.50 6.60 0.050 0.170 X X
30R135 1.35 2.70 30 40 0.8 6.75 7.30 0.040 0.130 X X
30R160 1.60 3.20 30 40 0.9 8.00 8.00 0.030 0.110 X X
30R185 1.85 3.70 30 40 1.0 9.25 8.70 0.030 0.090 X X
30R250 2.50 5.00 30 40 1.2 12.50 10.30 0.020 0.070 X X
30R300 3.00 6.00 30 40 2.0 15.00 10.80 0.020 0.080 X X
30R400 4.00 8.00 30 40 2.5 20.00 12.70 0.010 0.050 X X
30R500 5.00 10.00 30 40 3.0 25.00 14.50 0.010 0.050 X X
30R600 6.00 12.00 30 40 3.5 30.00 16.00 0.005 0.040 X X
30R700 7.00 14.00 30 40 3.8 35.00 17.50 0.005 0.030 X X
30R800 8.00 16.00 30 40 4.0 40.00 18.80 0.005 0.020 X X
30R900 9.00 18.00 30 40 4.2 40.00 20.00 0.005 0.020 X X
Description
Features
Applications
t

$VSFE

nBNF
SFUBSEBOU

epoxy polymer insulating
material meets UL 94V-0
requirements
t
'BTU
UJNFoUPUSJQ
t
3P)4
DPNQMJBOU

-FBE

Free and Halogen-Free*
t

64#
IVCT

QPSUT

and peripherals
t
$PNQVUFST

QFSJQIFSBMT
t
.PUPS
QSPUFDUJPO
t
(FOFSBM
FMFDUSPOJDT
t
"VUPNPUJWF
BQQMJDBUJPOT
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.
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119318
* 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.