2018 Series PTC Surface Mount Resettable Fuse
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2018 Series PTC Surface Mount Resettable Fuse

2018 Series PTC Surface Mount Resettable Fuse,Positive temperature coefficient devices, also known as re-settable fuses, providing over-current protection for electronic circuits and devices.
Quantity:

The resistance of PTCs rises as the temperature rises. With this feature, the value change of resistance is not obvious when the safe current passes, the resistance value changes drastically when abnormal current passes, this reaches the purpose of limiting abnormal current, the resistance value will “reset” automatically when the abnormality is eliminated and temperature returns to a safe level . It is an ideal choice for equipment with frequent abnormal over-current flowing area. PPTC often used in consumer electronics, power lines, telecommunications, I/O connectors, process control and medical equipment.


Specifications

● Brand: YINT

● Min. Order: 1 piece

● Certification: RoHS

● Packaging: in reel

● Smaller size saves board space and cost

● Resettable circuit protection

● Fast time-to-trip

● Low resistance

● Surface mount packaging for automated assembly

● Lead-free and compliant with the European Union RoHS Directive 2002/95/EC


Product Dimensions

Model A B C D E
Min. Max. Min. Max. Min. Max. Min. Min.
SMD2018-030 4.72 5.44 4.22 4.93 0.60 1.10 0.30 0.25
SMD2018-050 4.72 5.44 4.22 4.93 0.60 1.10 0.30 0.25
SMD2018-100 4.72 5.44 4.22 4.93 0.45 0.80 0.30 0.25
SMD2018-100-33 4.72 5.44 4.22 4.93 0.45 0.80 0.30 0.25
SMD2018-150 4.72 5.44 4.22 4.93 0.45 0.80 0.30 0.25
SMD2018-200 4.72 5.44 4.22 4.93 0.45 0.80 0.30 0.25


Electrical Characteristics

Model Vmax(Vdc) Imax(A) Ihold @25℃ (A) Itrip @ 25℃ (A) Pd Max (W) Max Time to trip Resistance
Current (A) Time (Sec) R1min (Ω R1max
(Ω)
SMD2018-030 60.0 100 0.30 0.60 0.9 1.5 3.0 0.50 2.30
SMD2018-050 60.0 100 0.55 1.20 1.0 2.5 3.0 0.20 1.00
SMD2018-100 15.0 100 1.10 2.2 1.1 8.0 0.4 0.06 0.36
SMD2018-100-33V 33.0 100 1.10 2.2 1.1 8.0 0.4 0.06 0.36
SMD2018-150 15.0 100 1.50 3.0 1.1 8.0 0.8 0.05 0.17
SMD2018-200 10.0 100 2.00 4.0 1.1 8.0 2.4 0.03 0.10


Application

Polymer Resettable Fuse for over-current, over-temperature and short-circuit protection

● Computer motherboards

● IEEE1394 Ports

● USB hub, ports and peripherals

● Phones

● Data communication

● Modems/ Ethernet/LAN


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