Murata Manufacturing Co., Ltd.

9 November 2011

Murata tightens PTC thermistor tolerance for overheat detection applications

Murata announced today the availability of the PRF15 series of miniature positive temperature coefficient (PTC) thermistor designed specifically for overheating detection applications in a broad range of consumer electronics devices. Believed to have the industry’s tightest temperature tolerance of +/- 3 degrees C, the series lineup comprises devices with detection temperatures in the range of +80 degrees C to +150 degrees C in 10 degree C steps. Across the series the thermistor resistance at +25 degrees C is 1 k ohm, with preferred detection points occurring at 10 k ohm and 100 k ohm values. For example, the PRF15AR102RB6RC part detects +135 degrees C at 10 k ohm and +150 degrees C at 100 k ohm. Maximum voltage is 32 VDC.

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17 May 2011

Murata launches world’s first safety standard certified ceramic capacitor for automotive applications

Murata announced today the launch of the DE6 series “Type KJ” ceramic capacitors specifically designed for automotive applications and certified to meet the demanding safety standards required in such operating environments. Believed to be the first manufacturer in the industry to have successfully commercialized ceramic capacitors destined for automotive applications and certified under the safety standards, the capacitors are coated with a new insulating resin material. The resin improves the temperature resistance cycle performance and allows the capacitors to be guaranteed to endure 1,000 -55°C/+125°C temperature cycles.

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15 June 2010

Murata joins AIM in the UK and Netherlands

Hoofddorp, Netherlands: Murata has become a manufacturer-member of the UK and Netherlands chapters of AIM, the Association for Automatic Identification and Mobility. Representing automatic identification and mobility technology solution providers worldwide, AIM has led the way in industry standards, education and outreach since 1972. Murata became a manufacturer-member of AIM Germany in January 2010.

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15 April 2010

Industry's only conductive glue mountable thermistor developed by Murata

Hoofddorp, Netherlands: Selected parts from Murata's popular chip NTC thermistor range are now available in versions suitable for conductive glue mounting. The NCG18 series of conductive glue mountable thermistors is the industry's first. The parts feature exactly the same characteristics as Murata's widely used NCP18 series, meaning that when migrating to the new type, all the relevant circuit parameters can be maintained, saving design time and cost.

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17 February 2010

Murata announces ultra-tight ±0.5% tolerance chip NTC thermistors

Hoofddorp, Netherlands: Murata announces ultra-tight tolerance versions of its market-leading chip NTC (negative temperature coefficient) thermistor series, the NCP series. ±0.5% tolerance versions are now available with consumer, industrial and automotive temperature ranges. These ±0.5% tolerance chip NTC thermistors are the first of their kind to be developed and offer a low-cost alternative to IC-based sensing solutions when high sensing accuracy is required.

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4 February 2010

Narrow tolerance high-voltage resistors from Murata replace variable resistors in power supply and high voltage applications

Hoofddorp, Netherlands: Murata's MHR03xx series of high voltage resistors is now available with tighter tolerances than in previous versions. Parts in the range 1M? to 100M? are available with +/-0.5% tolerances, and parts up to 500M? can be produced with tolerances of +/-1%. These new narrow tolerance parts are produced using Murata's state of the art laser trimming technology, and can help reduce costs by replacing more expensive variable resistors in certain types of design. Murata has been producing high voltage resistors for more than 35 years and is the market leader in the technology.

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18 December 2009

Murata widens line-up of automotive grade NTC chip thermistors

Hoofddorp, Netherlands: Murata has increased the lineup of its industry-leading chip thermistor family by adding a new automotive grade series of compact NTC (negative temperature coefficient) chip thermistors. The NCPxxxx0Sxx series features operating temperature between -40 and +150 degC and will be used in high temperature environments such as engine control circuitry.

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4 June 2009

Murata's long lead thermistor for hard to reach areas gains automotive qualifications

Hoofddorp, Netherlands: Murata's Thermo-String long lead thermistor range for monitoring the temperature of areas that are hard to reach with surface-mount thermistors is now fully qualified for automotive use. Hot spots may not always be on the PCB or motherboard, so Thermo-String's long leads of up to 150mm allow the head of the thermistor to be situated as close to the problem area as possible, even in narrow or small locations.

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29 May 2008

Murata's PRF thermistor series protects power FETs in multiple locations in POL converter applications

Hoofddorp, Netherlands: The latest addition to Murata's PRF family of chip ceramic thermistors (POSISTORs) is the PRF18xx5RB series, designed for overheat detection of power FETs in point of load (POL) DC-DC converters and other power supply applications. Each part has two temperature sensing points and features characteristic curves that rise very sharply. The series has a resistance of 470? at 25°C, rising to 4.7k? between 65 and 145°C, rising further to 47k? between 80 and 150°C, depending on the part number. The PRF series is available in tiny 0603 packaging, and is also suitable for detecting overheat conditions in battery packs, motors, power devices and other systems.

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