Document
16R Series
Radial Leaded
PolySwitch® Resettable PPTC Datasheet
RoHS
Description
Littelfuse 16R Series Radial Leaded PTCs are designed to provide resettable overcurrent protection serving a wide range of electronics applications. With maximum 16 volts and maximum 100-ampere short circuit rating, they offer an ideal solution for USB protection.
Additional Information
Resources
Accessories
Samples
Features & Benefits
■ 100A short circuit rating ■ 16V Operating voltages ■ Fast time–to–trip
■ Meets all USB protection requirements
■ RoHS compliant, Lead- Free and Halogen-Free*
Applications
■ Computers & peripherals ■ Any USB application ■ General Electronics
Agency Approvals
Agency
Agency File Number E183209 R50119318
Electrical Characteristics
Part Number
I hold (A)
16R250G
2.5
16R300G
3.0
16R400G
4.0
16R500G
5.0
16R700G
7.0
16R800G
8.0
16R900G
9.0
16R1000G
10.0
16R1400G
14.0
I trip (A)
4.7 5.1 6.8 8.5 11.9 13.6 15.3 17.0 23.8
V max (Vdc)
16 16 16 16 16 16 16 16 16
Maximum Time To Trip
I max (A)
Pd typ. (W)
Current
Time
(A)
(Sec.)
100
1.0
12.5
5.0
100
2.3
15.0
1.0
100
2.4
20.0
1.7
100
2.6
25.0
2.0
100
3.0
35.0
3.5
100
3.0
40.0
5.0
100
3.3
45.0
5.5
100
3.6
50.0
6.0
100
4.6
70.0
9.0
Resistance
R min (Ω)
R 1max (Ω)
0.0220
0.0530
0.0380
0.0975
0.0210
0.0600
0.0150
0.0340
0.0077
0.0200
0.0056
0.0175
0.0047
0.0135
0.0040
0.0102
0.0026
0.0064
Agency Approvals
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 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. Vint = Maximum voltage the device can withstand without damage at rated current (I max) Vop = The device regular operation voltage I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) 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.
* Effective February 11, 2010 onward, all 600R PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 600R PTC products may continue to be sold, until supplies are depleted. This change will have no effect on 600R product specifications or performance.
Warning • Users shall independently assess the suitability of these devices for each of their applications • Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire • These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be
repetitive or prolonged in duration • Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices • These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses • Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device.
© 2022 Littelfuse, Inc.
1
Specifications are subject to change without notice.
Revised: GD. 08/16/22
16R Series
Radial Leaded
PolySwitch® Resettable PPTC Datasheet
Part Number
16R250G 16R300G 16R400G 16R500G 16R700G 16R800G 16R900G 16R1000G 16R1400G
-40°C
3.7 4.4 5.9 7.4 10.4 11.8 13.3 14.8 20.7
-20°C
3.3 4.0 5.3 6.6 9.3 10.6 12.0 13.3 18.6
Temperature Rerating
Ambient Operation Temperature
0°C
20°C
40°C
Hold Current (A)
2.9
2.5
2.2
3.5
3.0
2.6
4.7
4.0
3.5
5.9
5.0
4.4
8.2
7.0
6.1
9.4
8.0
7.0
10.6
9.0
7.8
11.8
10.0
8.7
16.5
14.0
12.2
50°C
2.0 2.4 3.2 4.0 5.6 6.3 7.1 7.9 11.1
60°C
1.8 2.1 2.9 3.6 5.0 5.7 6.5 7.1 10.0
70°C
1.6 1.9 2.6 3.2 4.5 5.1 5.8 6.4 9.0
85°C
1.3 1.6 2.1 2.6 3.7 4.2 4.7 5.3 7.4
2.5 A 3.0 A 4.0 A 5.0 A 7.0 A 8.0 A 9.0 A 10.0 A 14.0 A
Average Time Current Curves
1 0.1 0.01 0.001
Percentage of Rated Current
Temperature Rerating Curve
170% 150% 130% 110% 90% 70% 50% 30%
10% -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Temperature (°C)
Note: Typical Temperature rerating curve, refer to table for derating data
Time in Hectoseconds (100 Seconds)
0.0001 1
10
100
1000
Current in Amperes
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.
© 2022 Littelfuse, Inc.
2
Specifications are subje.