Infineon Technologies has introduced a new diode series designed to protect NFC antennas and front-end devices from electrostatic discharges (ESD).
According to Infineon, NFC antennas are often situated on easily accessible spring-mounted contacts on the top of the phone, making them susceptible to ESD that can pass into the NFC module and damage or destroy its components. The new ESD18VU1B diode series sits between the antenna and NFC modem to absorb the ESD, thus preventing damage to the NFC system.
According to Infineon, the diodes feature inherent dynamic resistance of 0.6 ohms – three times lower than other solutions currently available in the market for the same category of applications. This enables ESD18VU1B diodes to clamp 8 kV electrostatic discharges to voltage levels as low as 28 V without any degradation.
The diodes can also withstand repeated ESD strikes according to the IEC61000-4-2 industry standard, and react to multiple discharges within less than 1 ns response time.
The new ESD18VU1B series is available in two Infineon standard packages, TSLP-2-1 (1.0×0.6×0.39mm) and a smaller TSSLP-2-1 (0.6×0.3×0.3mm) unit designed for ultra-slim mobile devices.
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