POLYFUSE® Resettable PTCs
Radial Leaded
USBR Series
Description
• The USBR series radial leaded device is designed to
provide overcurrent protection for USB applications
where space is not a concern.
Features
• RoHS compliant and
lead-free
• Fast time-to-trip
• Meets all USB protection
requirements
• 40A short circuit rating
• Operating voltages of
6-16V
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
Applications
• Computers & peripherals
• Any USB application
R50082521
Electrical Characteristics
Maximum Time
To Trip
Agency
Approvals
Resistance
P
madx.
(W)
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Part Number
R min
R 1max
Current
(A)
Time
(Sec.)
(Ω)
(Ω)
06R075B
06R120B
06R155B
16R090B
16R110B
16R135B
16R160B
16R185B
16R250B
0.75
1.20
1.55
0.90
1.10
1.35
1.60
1.85
2.50
1.30
2.00
2.70
1.80
2.20
2.70
3.20
3.70
5.00
6
40
40
40
40
40
40
40
40
40
0.3
0.6
0.6
0.6
0.7
0.8
0.9
1.0
1.2
8.00
8.00
7.75
8.00
8.00
8.00
8.00
8.00
8.00
0.4
0.5
0.100
0.065
0.040
0.070
0.050
0.040
0.030
0.030
0.020
0.230
0.140
0.100
0.180
0.140
0.120
0.110
0.090
0.060
X
X
X
X
X
X
X
X
X
X
6
X
X
X
X
X
X
X
X
6
2.2
16
16
16
16
16
16
1.2
2.3
4.5
9.0
10.0
40.0
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 (Vmax
Pd = 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.
USBR Series
ꢀ
www.littelfuse.com
Specifications are subject to change without notice.
Electronics Designers Guide
©2006 Littelfuse