Circuit & System Protection


Resettable fuses improve reliability at lower cost

25 October 2000 Circuit & System Protection

Polymer positive temperature coefficient (PPTC) fuses have provided designers in numerous industries a new tool in their battle to improve product quality and performance while at the same time reducing total installed cost.

As PPTC fuses are resettable, warranty costs and service calls are largely avoided. Since they do not need to be serviced, they can be used as embedded circuit protection devices.

Based on PPTC technology, Bourns' multifuse resettable fuses are packaged in radial leaded, surface mount, axial leaded 'battery strap' and uncoated disk form and have a wide range of power ratings. With this comprehensive selection of packages and power ratings, a multifuse resettable fuse will virtually always be able to meet your application requirements.

There are many applications for multifuse resettable fuses in a variety of market segments, including:

* Computers and peripherals: Circuit protection in desktop, laptop, notebook computers and peripheral devices is growing increasingly complex and important. Overcurrent protection applications for hard disk drives; keyboard and mouse ports; SCSI interface ports; SCSI adapter cards; audio and video cards; Ethernet and Token Ring LAN ports and adapter cards; cooling fan motors; and USB.

* Battery applications: Since batteries are important components of today's diverse array of portable equipment, protection of the battery pack is essential to keep the system up and running.

* Automotive: Automotive manufacturers continue to design more powered accessories such as seats, antennas, mirrors and windows into their vehicles. With added features comes the added complexity of wiring harnesses, motors, the electronics that control them, and the protection required to make them safe.

* Industrial controls: PPTC resettable fuses are low-resistance, resettable overcurrent protectors which may be placed in series with the input and output lines of a pressure sensor to protect the electronics. This is especially important for sensors which need to work in gaseous environments and must be explosion-protected.

The fact that these protection devices reset automatically sets them apart among circuit protection devices. Further, the nuisance factor of replacing blown fuses is eliminated.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Electrical fire safety in lithium-ion battery rooms
Circuit & System Protection
Pratliperl is a non-combustible, ultra-lightweight aggregate that can be mixed with cement and applied as a plaster or screed to walls, floors, and ceilings.

Read more...
Clearing the Static: ESD training in the workplace
Actum Circuit & System Protection
To protect sensitive electronic components, A structured, consistent, and sustainable ESD training program is essential.

Read more...
Protect your pumps – protect your profit
NewElec Pretoria Circuit & System Protection
In South Africa’s demanding agricultural landscape, irrigation is not just an essential service – it is the heartbeat of farm productivity.

Read more...
New 3dB hybrid couplers
Electrocomp Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.

Read more...
Robust series of vertical-mating battery connectors
Electrocomp Interconnection
KYOCERA AVX has further expanded its industry-leading selection of standard battery connectors with the introduction of the new 9155-900 Series 2,5 mm-pitch vertical-mate battery connectors.

Read more...
Clearing the Static: ESD and installation: A durable antistatic solution
Actum Circuit & System Protection
ESD flooring provides a reliable, long-term solution for managing static electricity by safely dissipating static charges through the floor to a designated ground point.

Read more...
Why wait to automate
NewElec Pretoria Circuit & System Protection
NewElec’s initiative helps you gain operational visibility via HMI or PLC by retrofitting intelligent motor protection relays without replacing MCCs or rewiring the plant.

Read more...
Clearing the Static: Effectively control static in your workplace
Actum Circuit & System Protection
Controlling electrostatic discharge in the workplace is crucial to protect sensitive electronic equipment from damage. Implementing an ESD control program involves various measures and tests.

Read more...
Low-profile tantalum chip capacitors
Electrocomp Passive Components
These general-purpose tantalum capacitors from Kyocera AVX are available in multiple case sizes with low profile options.

Read more...
Compact high-performance antennas
Electrocomp Telecoms, Datacoms, Wireless, IoT
KYOCERA AVX offers a variety of extremely compact and high-performance internal, on-board, multiprotocol 2,4 GHz antennas ideal for use in SiP applications.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved