1.Main Product Categories Multilayer Chip Signal Inductors Ultra-small SMD size, low cost, good anti-vibration performance; ideal for general digital line noise filtering. Wire Wound Chip Signal Inductors Higher Q factor than multilayer types, less high-frequency signal loss, preferred for RF/weak signal matching. Thin Film Signal Inductors Ultra-tight tolerance, precise inductance, stable performance for high-speed tiny signal circuits. Mini Through-Hold Signal Coils For small analog equipment with manual welding requirements, low inductance values. 2.Core Technical Parameters Inductance range: 1nH ~ 10μH Inductance tolerance: ±2%, ±5%, ±10% High Q factor: Reduce signal loss and distortion Low parasitic capacitance & low DCR Self-resonant frequency (SRF): Cover MHz medium-high frequency signal bands Rated current: Small current grade (50mA ~ 300mA, low signal load) Operating temperature: -40℃ ~ +125℃ Compact SMD footprints (0201, 0402, 0603, 0805 mainstream) 3.Key Features & Benefits Optimized for weak small signals, no signal distortion or attenuation Suppress high-frequency clutter, spike interference and harmonic noise on signal lines Stable inductance value with slight temperature fluctuation Miniature SMD packaging, saves PCB layout space Low power consumption, fits battery-powered portable devices Low electromagnetic leakage, avoid cross-interference between adjacent signal traces Cost-effective mass production for general consumer electronic signal boards 4.Circuit Functions Filter high-frequency noise on digital IO, audio and sensor signal lines LC resonance and frequency selection for low-power RF, infrared remote control circuits Impedance matching for weak analog sensor signals Decoupling and isolation between analog and digital signal zones Suppress EMI radiation from high-speed clock signal traces 5.Application Fields Audio equipment, wearable smart devices, Bluetooth/Wi-Fi small modules, sensor signal acquisition boards, household remote controllers, portable measuring instruments, digital toys, industrial low-voltage signal acquisition circuits, mouse/keyboard PCBA, small charging management signal circuits.