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Murata Releases NFC Variable Capacitor with Improved Capabilities to Withstand Voltage

27.6.2018
Reading Time: 1 min read
A A

Source: Murata news

Murata Manufacturing Co., Ltd. has launched an NFC*1 variable capacitor*2 (LXRW19V201-058) with improved capabilities to withstand voltage*3. This product is mainly intended for use in card readers equipped with an NFC function (POS*4 systems). This product entered mass production in April 2018 at Okayama Murata Manufacturing Co., Ltd.

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In contrast to the conventional use of variable capacitors in smartphones and mobile phones, card readers typically require a constant AC voltage impression to function. This product redefines the structure of the internal capacitor to enable the card reader to withstand a 30 Vpp AC output under a constant voltage impression (triple the conventional voltage withstanding capabilities).

NFC card reader frequency needs to be precisely tuned in order to meet the needs for miniaturization as a mobile device and to support EMV*5. This product has been developed to meet these needs.

Explanation of terms
*1 NFC : Near Field Communication. A wireless communications standard that uses the 13.56MHz band.
*2 Variable capacitor : An electronic component that varies the capacity value by applying voltage to the element.
*3 Withstand voltage : The threshold for applying voltage to devices and electronic components.
*4 POS : Point Of Sales. Information management system at the point of sale.
*5 EMV : An IC credit card protocol devised by international card brands Visa and Master Card.

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