Product category:
Circuit Protection Devices
News Release from: Murata Electronics (UK) | Subject: Posistor
Edited by the Electronicstalk Editorial
Team on 21 February 2005
Chip thermistors cut the cost of
protection
Murata has significantly reduced the prices of its proven Posistor range of PTC chip thermistors.
Murata has significantly reduced the prices of its proven Posistor range of PTC chip thermistors These positive temperature coefficient devices include the PRF18 series for detecting overheating of hybrid ICs, power transistors, power diodes and other power ICs
This article was originally published on Electronicstalk on 4 Jul 2008 at 8.00am (UK)
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Ferrite beads for miniature suppression
Miniature ferrite beads provide wide frequency range attenuation, typically from 30MHz to several hundred megahertz.
The standard 0603 size parts are now complemented with a new range of 0402 devices.
Compared with alternative solutions such as bimetal devices, the Posistors are noise free with no mechanical contact problems and are lower cost.
Compared with zener diodes, a Posistor based solution requires fewer components, thereby saving on both production costs and board space.
Applications include PC servers, TV games, lighting systems, power supplies, audio equipment and items containing DC brushless motors, such as air conditioning units, refrigerators and office equipment.
Murata's PRG series of 0603 and 0805 Posistors, designed for overcurrent prevention are proving popular in applications including LCDs, DC/DC convertors and rechargeable batteries.
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