The **M8TS1-055-R** is a high-performance, shielded power inductor typically manufactured by brands like **Coilmaster Electronics**. It is designed specifically for power management circuits where space is limited and efficiency is critical. --- ### 1. Key Technical Specifications | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance** | 5.5 µH | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~18.0 mΩ (Max) | | **Saturation Current (Isat)** | ~10.5 A | | **Heating Current (Irms)** | ~8.0 A | | **Operating Temperature** | -40°C to +125°C | | **Dimensions** | ~8.0 x 8.0 x 4.0 mm | --- ### 2. Physical Construction and Design The part is built using a **shielded structure**, which is vital for modern electronic assemblies. * **Magnetic Shielding:** The coil is encased in a magnetic resin or ferrite core. This minimizes Electromagnetic Interference (EMI), preventing the inductor's magnetic field from affecting nearby sensitive components. * **Low Profile:** The "8" in the series often refers to the footprint size (8x8mm), while the "TS" indicates a standard or thin-profile series suitable for surface mount technology (SMT). * **Terminations:** It features robust solder pads designed for reflow soldering processes, ensuring a stable mechanical and electrical connection. --- ### 3. Functional Role in a Circuit The M8TS1-055-R serves three primary functions in an electronic system: 1. **Energy Storage:** It stores energy in its magnetic field during the "on" cycle of a switching regulator and releases it during the "off" cycle. 2. **Filtering:** It works alongside capacitors to smooth out voltage ripples in DC-DC converters (Buck or Boost). 3. **Noise Suppression:** It acts as a low-pass filter, blocking high-frequency noise while allowing DC current to pass through. --- ### 4. Common Applications Due to its high saturation current and low DCR, this inductor is commonly found in: * **Computing:** VRM (Voltage Regulator Modules) for CPUs and GPUs. * **Telecommunications:** Base station power supplies and networking routers. * **Industrial:** DC-DC converters for automation controllers. * **Consumer Electronics:** Large LED displays and high-power battery chargers. ---