The **CM322522-R10ML** is a specific surface-mount (SMD) wire-wound chip inductor. It is widely used in electronic circuits for high-frequency applications, signal filtering, and decoupling. --- ### 1. Part Number Breakdown The nomenclature follows a standard industry format for inductive components: | Segment | Meaning | Detail | | :--- | :--- | :--- | | **CM** | Series Code | Wire-wound chip inductor series | | **322522** | Dimensions | 3.2mm x 2.5mm x 2.2mm (EIA 1210 size) | | **R10** | Inductance Value | R denotes decimal; 0.10 Microhenries ($\mu H$) | | **M** | Tolerance | $\pm 20\%$ | | **L** | Packaging/Finish | Usually denotes Lead-free/RoHS compliant | --- ### 2. Technical Specifications Below are the typical electrical characteristics for this specific component: | Parameter | Value | | :--- | :--- | | **Inductance** | $0.10 \mu H$ (100 nH) | | **Tolerance** | $\pm 20\%$ | | **Quality Factor (Q min)** | 28 to 30 (at test frequency) | | **Self-Resonant Frequency (SRF)** | ~450 MHz to 700 MHz | | **DC Resistance (DCR max)** | ~0.18 $\Omega$ to 0.44 $\Omega$ | | **Rated Current (Idc)** | ~450 mA | --- ### 3. Physical Construction * **Core Material:** Ferrite core, which provides high permeability and allows for a compact design. * **Termination:** Tin-plated (Sn) electrodes for excellent solderability. * **Encapsulation:** Molded resin body protecting the copper winding from environmental factors and mechanical stress. --- ### 4. Common Applications Due to its 100nH inductance and 1210 footprint, this part is commonly found in: 1. **RF Circuits:** Used in impedance matching and resonance circuits for telecommunications. 2. **Power Management:** Acting as a filter in low-current DC-DC converters to smooth voltage ripples. 3. **Signal Lines:** Suppressing high-frequency noise (EMI/RFI) in consumer electronics like tablets and GPS units. ---