Main Types Multilayer High-Frequency Chip Inductors Mini SMD structure, compact size, good anti-shock performance; widely used in Bluetooth, Wi-Fi, RF signal lines. Wire Wound RF Chip Inductors Higher Q factor than multilayer types, lower high-frequency loss, ideal for antenna matching, resonant circuits. Air Core High-Frequency Coils No ferrite core, extremely high SRF, no magnetic saturation; applied to ultra-high frequency RF circuits. Ceramic Core High-Frequency Inductors Low dielectric loss, stable inductance across wide frequency range for communication modules. Thin Film High-Frequency Inductors Ultra-small micro size, consistent inductance tolerance, suitable for miniature wearable RF devices. Critical Technical Parameters Inductance Range: nH grade (1nH ~ 1μH mainstream) High Q Factor: Low energy attenuation at working frequency High Self-Resonant Frequency (SRF): Far above circuit operating frequency Ultra-low parasitic capacitance & parasitic inductance Tight inductance tolerance: ±0.5%, ±1%, ±2%, ±5% Low DCR: Reduce signal power consumption Operating Frequency Coverage: MHz ~ several GHz Operating Temperature: -40℃ ~ +125℃ Core Features & Advantages Maintain stable inductance value under high-frequency excitation, no severe attenuation High Q characteristic minimizes signal loss, avoids signal attenuation Low stray capacitance, prevents self-resonance interference in target frequency band Rich SMD packaging options for automated PCB SMT assembly Small footprint, adapts to miniaturized wireless communication modules Excellent temperature stability, consistent performance under temperature fluctuation Typical Circuit Functions RF antenna impedance matching LC resonant oscillation circuits High-frequency signal filtering & noise suppression RF signal coupling & isolation Harmonic suppression for high-speed digital circuits Frequency selection for wireless transceiver circuits Application Fields Bluetooth modules, Wi-Fi communication equipment, GPS positioning modules, RF remote control, wearable smart electronics, IoT wireless sensors, mobile communication terminals, high-speed digital circuit boards, radio frequency transceivers, medical wireless devices.