B82451N4754E002

Rfid Antennas Overview

The B82451N4754E002 is an SMT transponder coil manufactured by EPCOS (TDK Electronics). It features a nominal inductance of 4.75 mH and operates at a frequency of 125 kHz. The component has a tolerance of 3% and a quality factor (Q) of 50, with a resonant frequency of 1.2 MHz. Designed for surface mount technology, it utilizes a compact package measuring 7.7 x 7.5 x 2.65 mm.

Rfid Antennas Feature Summary

• Surface mount transponder coil design
• Optimized for 125 kHz operation
• Compact footprint for PCB integration

Rfid Antennas Applications

• NFC/RFID transponder systems
• Automotive keyless entry modules
• Access control identification tags

Rfid Antennas Procurement Notes

Verify the specific ordering suffix to ensure the correct tolerance and packaging configuration matches the design requirements. Confirm that the 125 kHz operational frequency aligns with the system's reader specifications. Check material data sheets for thermal handling limits during soldering processes.

Rfid Antennas Selection Notes

Select this component when a high-inductance value is required for low-frequency RFID applications. The 3% tolerance ensures consistent performance across production batches. Ensure the PCB layout accommodates the specified physical dimensions and accounts for the self-resonant frequency characteristics.

Rfid Antennas Part Context

This part belongs to the B82451N series of Z-transponder coils from TDK Electronics. These components are engineered specifically for passive RFID tags and automotive immobilizer systems. The series offers various inductance values to suit different antenna designs while maintaining standard package footprints.

Rfid Antennas Replacement Considerations

Consult official TDK documentation for direct substitutes within the B82451N family or alternative series with matching 4.75 mH inductance and 125 kHz compatibility.