Micro Impex

Thermostat

Flash Tube

Ptc Fuse

Rare-earth Neodymium Magnet Sintered

Product Application

PPTC FUSE

The term Resettable Fuse somewhat of a misnomer, and self-resetting fuse may be more appropriate when discussing PPTC Fuses. A Polymer Positive Temperature Coefficient (PPTC) Fuse is an overcurrent protection device that trips when a certain trip current is exceeded. In contrast with conventional fuses that need to be replaced, resettable fuses automatically reset once the overcurrent is removed. They are small, inexpensive, and come in a variety of packages: Radial Leaded, Axial Leaded, and SMT. PPTC Fuses are constructed with a non-conductive polymer plastic film that exhibits two phases. The first phase is a crystalline or semi-crystalline state where the molecules form long chains and arrange in a regular structure. As the temperature increases the polymer maintains this structure but eventually transitions to an amorphous phase where the molecules are aligned randomly, and there is an increase in volume. The polymer is combined with highly conductive carbon. In the crystalline phase the carbon particles are packed into the crystalline boundaries and form many conductive paths, and the polymer-carbon combination has a low resistance.

	Fact Sheet Nature of Business : Trader Major Markets : Indian Subcontinent

Contact Details

Company Name: Micro Impex Contact Person: Mr. Manager Telephone: +(91)-(22)-23886699 / 23896478 Fax No: +(91)-(22)-23822176 Address: Shop No 3, Ground Floor,Old Hanuman Building, Chunam Lane,Lamington Road, Grant Road (East),, Mumbai, Maharashtra - 400007 (India)