The **CTMC1210-R022K** is a surface-mount (SMD) wire-wound chip inductor designed for high-frequency and general-purpose electronic circuits. This part is characterized by its small 1210 package size and its precise magnetic properties. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the component's specifications: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **CTMC** | Series | Molded Chip Inductor (Wire-wound) | | **1210** | Case Size | 3.2mm x 2.5mm (EIA 1210 / Metric 3225) | | **R022** | Inductance Value | 0.022 µH (or 22 nH) | | **K** | Tolerance | ±10% | --- ### 2. Technical Specifications The electrical characteristics are critical for determining circuit compatibility: * **Inductance:** 0.022 µH (22 nH). * **Tolerance:** ±10% (Indicated by the 'K'). * **Case Size:** 1210 (Metric 3225). * **Construction:** Molded design protecting a wire-wound core. * **Mounting Type:** Surface Mount (SMD/SMT). * **Operating Temperature:** Typically ranges from -40°C to +125°C (standard for this series). --- ### 3. Key Features * **Mechanical Strength:** The molded construction provides excellent physical protection and resistance to vibrations or shocks. * **Solderability:** Features high resistance to soldering heat, making it suitable for reflow and wave soldering. * **Dimensions:** Small footprint allows for high-density PCB layouts. --- ### 4. Typical Applications This component is commonly found in circuits requiring high-frequency filtering or impedance matching: 1. **Telecommunications:** Cell phones, base stations, and wireless LANs. 2. **Consumer Electronics:** High-frequency video and audio equipment. 3. **Power Supplies:** Used in DC-DC converters for noise suppression. 4. **RF Circuits:** Matching networks and high-frequency filtering. --- ### 5. Equivalent/Alternative Comparison Example If you are looking for alternatives, you would typically compare these parameters: ```markdown - Brand: Central Technologies (Common manufacturer for CTMC series) - Potential Substitutes: Murata LQH32 series, TDK NLV32 series. - Verification: Ensure the Rated Current (Idc) and Self-Resonant Frequency (SRF) match your specific circuit requirements. ```