B82451L1004E402

Rfid Antennas Overview

The B82451L1004E402 is a surface-mount transponder coil designed for passive entry passive start (PEPS) automotive access systems. It operates at a frequency of 125 kHz with an inductance of 1.0 mH. The component features a Q factor ranging from 50 to 58 and sensitivity between 7 mV/µT and 23 mV/µT. Its physical dimensions are 7.7 mm x 7.4 mm x 2.65 mm, utilizing injection-molded plastic baseplates and laser-welded windings for durability. It complies with AEC-Q200 standards.

Rfid Antennas Feature Summary

• Ultra-small form factor with injection-molded plastic baseplate
• High durability through laser-welded winding connections
• AEC-Q200 qualified for automotive reliability

Rfid Antennas Applications

• Passive Entry Passive Start (PEPS) systems
• Automotive keyless access modules
• Vehicle door lock control units

Rfid Antennas Procurement Notes

Verify the specific suffix E402 against the manufacturer's official ordering code list to ensure correct packaging and tape specifications. Confirm that the requested quantity aligns with standard reel sizes. Check current availability status as lead times may vary based on production schedules. Ensure compatibility with existing PCB footprint designs before finalizing procurement orders.

Rfid Antennas Selection Notes

Select this component when designing compact PEPS systems requiring high mechanical stability. The small footprint allows integration into tight spaces within door handles or consoles. Verify that the 125 kHz operating frequency matches the system's reader requirements. Consider the Q factor range for optimal signal coupling efficiency in the final assembly design.

Rfid Antennas Part Context

This part belongs to the B82451L series of Z-axis transponder coils manufactured by TDK Electronics. These components are engineered specifically for automotive applications, offering a balance of miniaturization and robust performance. The series supports various inductance values to accommodate different antenna tuning requirements in modern vehicle security architectures.

Rfid Antennas Replacement Considerations

Consult the official B82451L series documentation for alternative inductance values such as B82451L2364E402 or B82451L4664E402 if different electrical characteristics are required. No direct cross-model substitutes are officially confirmed; verify pinout and dimensional compatibility before considering any non-series alternatives.