one.Shanghai Leiditech EMCLittle brother, regardingNFCInterface electrostatic protection，LaunchedESDDevices and protection schemes：ULC1811CDN Meet 18VLow capacity parameter requirements for，furthermoreVCLow clamping voltage，Ultra low capacitance，ProtectableNFCinterfaceantennaEffective use of。
two. Near field communication（Near Field Communication，NFC）It's a short distancewireless communication technology，By integrating two devicesNFCchipnear，Realize data transmission and sharing。NFCTechnology based on radio frequency identification（RFID）technology，Running on 13.56MHzWireless frequency band。NFCThe device typically includes two modes：Card mode and read/write mode。In card mode，NFCThe device can act as a passive card，Used for payment、access control 、Applications such as public transportation cards。In read-write mode，NFCThe device can actively read or write to other devicesNFCData in the device。NFCThe characteristics of technology：Short distance communication、Fast transmission、Easy to use、Wide compatibility。
1. NFCCharacteristics of device interfaces
NFCDevice interfaces typically operate in low voltage and high frequency environments，therefore，Choose the right oneTVS/ESDdiodeThe following factors need to be considered：
· Low voltage response：Choose ones with low voltage response characteristicsTVS/ESDdiode，To ensure protection even at low voltages。
· Quick response time：Choose one with fast response timeTVS/ESDdiode，To quickly suppress transient overvoltage and electrostatic discharge。
· Low capacitance：Choose one with low capacitanceTVS/ESDdiode，To avoid interference withNFCSignal interference。
2. take careTVS/ESDInstallation and layout of diodes
To ensureTVS/ESDDiodes provide optimal protection，The following points need to be noted：
· Try to get as close as possibleNFCInstallation of device interface locationTVS/ESDdiode，To minimize the impact of electrostatic discharge and overvoltage on equipment interfaces to the greatest extent possible。
· Use well packaged diodes，To prevent damage from the external environment。
· Adopting an appropriate layout，Ensure that the wiring of the circuit's ground and signal lines is reasonable。
ShanghaiLei Mao ElectronicsTechnology Co., Ltd，Established in 2011，brandLeiditech，It is a national high-tech enterprise。The company's R&D team consists of Dr. Liu from the United States andTIEstablishment of the original development manager，With a skilled R&D team and experienced electromagnetic compatibility industry experts，Mainly providing anti-static measuresTVS/ESDAnd relatedEMCcomponent（Discharge tubeTSS/GDT、Stabilizing tubeZENER、VaristorMOV、Rectifier diodeRECTIFIER、Self recovery fusePPTC、Field-effect transistorMOSFET、inductance）。
LeiditecharoundEMCEMC service customers，Self built free laboratory for testing static electricity for customersESD（30KV）、Group pulseEFT(4KV)、surge（8/20，10/700 10/1000）、Car load shedding（7637 5a/5b）Performance testing of components, etc。LeiditechKeeping up with the pulse of domestic and international technological updates，Continuously innovatingEMCProtection scheme and related devices，Target direction is small packaging，High power，Provide reliable solutions and components for domestic substitution。 Your email address will not be published.Required fields are marked. *
