
63
Revised: July 12, 2010
POLYFUSE
®
Resettable PTCs
© 2010 Littelfuse, Inc
USBR Series
Radial Leaded > USBR Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/USBR.html for current information.
USBR Series
USBR Series
t5IF64#34FSJFTSBEJBMMFBEFEEFWJDFJTEFTJHOFEUP
provide overcurrent protection for USB applications
where space is not a concern.
Electrical Characteristics
Part Number
I
hold
(A)
I
trip
(A)
V
max
(Vdc)
I
max
(A)
P
d
max.
(W)
Maximum Time
To Trip
Resistance
Agency
Approvals
Current
(A)
Time
(Sec.)
R
min
(Ω)
R
1max
(Ω)
06R075B 0.75 1.30 6 40 0.3 8.00 0.4 0.100 0.230 XX
06R120B 1.20 2.00 6 40 0.6 8.00 0.5 0.065 0.140 XX
06R155B 1.55 2.70 6 40 0.6 7.75 2.2 0.040 0.100 XX
16R090B 0.90 1.80 16 40 0.6 8.00 1.2 0.070 0.180 XX
16R110B 1.10 2.20 16 40 0.7 8.00 2.3 0.050 0.140 XX
16R135B 1.35 2.70 16 40 0.8 8.00 4.5 0.040 0.120 XX
16R160B 1.60 3.20 16 40 0.9 8.00 9.0 0.030 0.110 XX
16R185B 1.85 3.70 16 40 1.0 8.00 10.0 0.030 0.090 XX
16R250B 2.50 5.00 16 40 1.2 8.00 40.0 0.020 0.060 XX
Description
Features
Applications
t3P)4DPNQMJBOUBOE
lead–free
t'BTUUJNFoUPoUSJQ
t.FFUTBMM64#QSPUFDUJPO
requirements
t"TIPSUDJSDVJUSBUJOH
t0QFSBUJOHWPMUBHFTPG
6-16V
t$PNQVUFSTQFSJQIFSBMT
t"OZ64#BQQMJDBUJPO
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.
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119318
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