Pptc fuse

A resettable fuse or polymeric positive temperature coefficient device PPTC is a passive electronic component used to protect against overcurrent faults in electronic circuits, pptc fuse.

These components remove the need for any temperature-based nuisance tripping across all such applications, while offering increased, high resistance protection in space-saving surface mount packages. A wider selection of applications include: automobile circuitry protection, overcurrent surge protection of high reliability electronic equipment, robust resettable fault protection for industrial transportation, communication, security, and consumer electronic equipment. Type the code from the image. This link will direct you to a web page outside the Bourns app. Do you wish to proceed?

Pptc fuse

Capacitors boosts the current and increases the power factor to an electrical motor. Search for the part s number you wish to receive samples. Or, visit the sample center page. PPTCs increase resistance as temperature increases due to increased flow. Designed to limit unsafe currents while allowing constant safe current levels, resistance will "reset" automatically when the fault is removed and temperature returns to a safe levels. Surface mount resettable PPTC devices provide overcurrent protection for applications where space is at a premium and resettable protection is desired. Package size varies from to , while hold current ranges from 50mA to 7. Radial leaded resettable PPTCs are designed to provide overcurrent protection for applications where space is not a concern and resettable protection is preferred. Battery strap resettable PPTCs provide reliable, non-cycling protection against overcharging and short circuits events for rechargeable battery cells where resettable protection is desired. The Telecom resettable PPTC Series is designed to protect against short-duration high-voltage fault currents power cross or power induction surge typically found in telecommunications and networking applications. Traditional Fuses vs. Understanding the differences between the two technologies should make the choice in selection easier, depending on the application.

This application brief demonstrates how to ensure reliable and safe circuit operation of USB products, protection against voltage and current transients must be carefully considered, pptc fuse. TD and Chip Telecom.

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These components remove the need for any temperature-based nuisance tripping across all such applications, while offering increased, high resistance protection in space-saving surface mount packages. A wider selection of applications include: automobile circuitry protection, overcurrent surge protection of high reliability electronic equipment, robust resettable fault protection for industrial transportation, communication, security, and consumer electronic equipment. Type the code from the image. This link will direct you to a web page outside the Bourns app. Do you wish to proceed? Yes No.

Pptc fuse

A polymeric positive temperature coefficient device PPTC is a passive electronic component used to protect against overcurrent faults in electronic circuits. Simply put, a PPTC device, also known as a multifuse or polyfuse or polyswitch, is actually a resettable fuse! Positive temperature coefficient PTC resettable fuse is a circuit protection device which provides overcurrent and overtemperature protection in a variety of applications. A PTC resettable fuse can open electric circuits during fault events like a traditional one-time fuse, but is automatically resettable. A PTC fuse consists of a positive temperature coefficient material whose internal resistance increases exponentially with an increase in operating temperature. In the ON state tripped state , the device offers very high resistance in response to faults such as short-circuit or overheat, thus limits the current flow through the device until the material cools, then reverts to low resistance mode.

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Littelfuse battery mini-Breakers provide battery cell protection for high-capacity Lithium Polymer and prismatic cells. ISBN Design Files. Littelfuse offers PPTCs with the following general forms and features, and come in a variety of sizes and capacities:. Radial Leaded. This application note addresses the various requirements for protecting the Universal Serial Bus USB from overcurrent and over voltage environmental threats. Features manually-operated, foot-operated, and mechanically-operated switches; and switches operated by temperature or pressure. Surface mount resettable PPTC devices provide overcurrent protection for applications where space is at a premium and resettable protection is desired. Connect with Littelfuse. Whereas a fuse will completely stop the flow of current which may be desired in critical applications after most similar overcurrent event, PPTCs continue to enable the equipment to function, except in extreme cases.

A resettable fuse or polymeric positive temperature coefficient device PPTC is a passive electronic component used to protect against overcurrent faults in electronic circuits.

Categories : Over-current protection devices Resistive components. Newbery January Wright; P. Mark 16 October For example, any rise in ambient temperature will decrease the hold current rating as well as the trip current. Retrieved 31 August Reliable standard and thermal protected varistor, available in a variety of forms, surge current capability up to 70, Amp. PPTCs increase resistance as temperature increases due to increased flow. Yes No. During an overcurrent event, a Polymer PPTC will heat and expand, which in turn causes the conducting particles to break contact and stop the current. Product Series. If the device does not open soon enough, the overcurrent may damage downstream components. Common Mode Noise Filters CMF attenuate common mode noise in differential and balanced transmission, and power supply and audio lines. Radial leaded resettable PPTCs are designed to provide overcurrent protection for applications where space is not a concern and resettable protection is preferred. Low capacitance polymer base product for protecting high speed data circuit from ESD damage and maintaining data integrity.