Designed for low-frequency identification systems, our Automotive Grade LF RFID Antenna and SMD RFID Transponder Coil series delivers stable performance for security-critical applications. Covering RFID902, RFID903, and RFID1103 series, these RFID antennas and RFID coils are optimized for 125kHz and 134.2kHz systems, ensuring reliable communication in automotive and industrial environments.

With compact SMD structures and robust construction, this LF RFID antenna solution is widely used in immobilizers, car access systems, PEPS (Passive Entry Passive Start), and access control devices where durability, accuracy, and consistency are essential.

Key Features

• Optimized for LF RFID Systems
  Designed for 125kHz and 134.2kHz operating frequencies, ensuring stable resonance and signal integrity in low-frequency RFID applications.

• Automotive-Grade Reliability
  Qualified to AEC-Q200 standards (RFID902 / RFID903 series) and engineered for harsh operating environments from -40°C to +85°C.

• Wide Inductance Range
  Inductance values from 0.11mH to 75mH, supporting flexible circuit matching for various LF RFID antenna and RFID coil designs.

• Compact SMD & PCB Mount Design
  Space-saving form factors enable easy integration into compact automotive and access control modules.

• High Q Factor Performance
  Q values up to 80 @125kHz, delivering efficient energy transfer and improved read range.

• Drop-Resistant Construction (RFID1103 Series)
  Epoxy-coated SMD RFID transponder coils provide enhanced mechanical strength, suitable for automated pick-and-place and high-vibration environments.

• RoHS-Compliant Materials
  Environmentally friendly materials meet global compliance requirements.

Electrical Characteristics (Typical)

• Operating Frequency: 125kHz / 134.2kHz

• Inductance Range: 0.11mH – 75mH (model dependent)

• Q Factor: ≥8 to ≥80 @125kHz

• Self-Resonant Frequency (SRF): >300kHz to >9MHz

• DC Resistance (DCR): 0.8Ω – 230Ω

• Sensitivity (RFID1103): >30 to >70 mVp-p/Amp @125kHz

Applications

• Automotive Immobilizer Systems
  Secure key recognition and anti-theft authentication.

• Car Access & PEPS Systems
  Passive entry and passive start RFID modules.

• Access Control Devices
  Door locks, security readers, and authentication terminals.

• Industrial Identification Systems
  Equipment tracking and personnel authentication.

• Low Frequency RFID Modules
  OEM and ODM integration for customized RFID solutions.

Why Choose Our RFID Antenna & Coil Solutions?

By combining automotive-grade LF RFID antennas with robust SMD RFID transponder coils, we provide a complete RFID coil solution tailored for high-reliability applications. Our products offer stable electrical characteristics, compact design, and proven performance in automotive and access control markets worldwide.