MHQ0402PSA0N2BT000 is a high-frequency multilayer inductor manufactured by TDK

Functions (for High-Frequency Applications)

RF Resonance & Matching Networks

It performs impedance matching at the front-end of Bluetooth, Wi-Fi, 2.4G and 5G circuits to maximize power transmission and reduce signal reflection.Applied in LC resonant circuits to define operating frequency and bandwidth, and improve receiving sensitivity & transmitting efficiency.

High-Frequency Choke

Blocks RF high-frequency signals while allowing DC and low-frequency signals to pass through. Used at power feed points of PA, VCO and FEM to prevent RF signal leakage into power circuits and avoid oscillation and spurious emissions.

EMI/RFI Filtering

Filters GHz-level noise on high-frequency signal lines, clock lines and power inlets to suppress radiated and conducted interference and optimize EMC performance.Suppresses high-frequency noise on high-speed digital interfaces such as DDR, USB and HDMI to reduce EMI.

Decoupling & Power Conditioning (High-Frequency Domain)

Works with MLCCs for high-frequency power decoupling from 500 MHz up to several GHz. It restrains high-frequency power ripple and ensures clean power supply for RF and high-speed circuits.

Miniaturized High-Frequency Energy Storage & Signal Delay

With ultra-short terminals and extremely low parasitic parameters, it is suitable for micro energy storage and fine signal delay adjustment in ultra-high frequency circuits.

Application Scope

1. Wireless Communication Terminals (Main Applications)

• Smartphones & Tablets: Antenna matching, front-end resonance and choking for 2.4G/5G Wi-Fi, Bluetooth/BLE, NFC, UWB and GPS.

• TWS Earbuds, Smart Bands & Watches: Bluetooth RF matching, power choking and EMI filtering.

• Wireless Modules: 2.4G/5G Wi-Fi modules, Bluetooth modules, RF transmitter and receiver modules (PA, VCO, FEM).

2. Drones, Remote Controls & Model Aircraft

• Flight control boards: Impedance matching for 2.4G remote control links, RF noise suppression and EMI filtering for high-speed clocks.

• Image transmission modules: Front-end matching, resonance and power choking for 5.8G transceivers.

3. IoT & Smart Home Devices

• Smart speakers, cameras and gateways: Wi-Fi/Bluetooth RF matching and EMI filtering.

• Zigbee/Thread modules: Front-end resonance and impedance matching for 2.4G circuits.

4. Automotive Electronics (Non-safety Related Areas)

• On-board central control, car infotainment systems, hands-free Bluetooth and Wi-Fi hotspots: RF matching, high-frequency power choking and EMI suppression.

• Radar & ADAS auxiliary systems: Low-band filtering and matching for 24 GHz / 77 GHz radar peripherals.

5. Industrial & Medical Equipment

• Industrial wireless sensors and PLC wireless modules: RF front-end matching and anti-interference filtering.

• Portable medical devices with Bluetooth monitoring: Miniaturized low-loss RF matching.

6. High-Speed Digital Circuits

• FPGA, SoC & CPU: EMI filtering for GHz-level clocks and buses, as well as high-frequency power decoupling.

• DDR, USB 3.0 & HDMI: High-frequency noise suppression and fine impedance trimming for high-speed lines.

7. Ideal Application Scenarios

• Extreme space constraints: The 01005 package (0.4×0.2 mm) is smaller than 0201, perfect for ultra-thin and miniature devices.

• High-frequency operation (500 MHz ~ 6 GHz) with low loss: Features high Q factor, low DCR and high self-resonant frequency.

• Cost-effective mass production: Standard TDK production and tape-and-reel packaging support automated mounting.

Summary

MHQ0402PSA0N2BT000 is a 01005 ultra-compact 0.2 nH high-Q high-frequency inductor from TDK. It is designed for low-loss impedance matching, resonance, choking and EMI filtering across 500 MHz to 6 GHz. Primarily deployed in RF front-ends for Bluetooth, Wi-Fi, 2.4G and 5G systems as well as high-speed digital circuits, it is the preferred RF inductor for miniature high-frequency devices including mobile phones, TWS earbuds, drones and IoT products.