The **CTMC1008F-R56M** is a high-frequency, surface-mount (SMD) wire-wound chip inductor. It is designed for high-density circuits where stable inductance and high reliability are required. --- ### 1. Part Number Breakdown The part number follows a specific nomenclature used by manufacturers (like Central Technologies): | Segment | Meaning | Detail | | :--- | :--- | :--- | | **CTMC** | Series Code | Molded Chip Inductor (Wire-wound) | | **1008** | Case Size | 1008 Imperial (2.5mm x 2.0mm) | | **F** | Lead-Free | RoHS Compliant | | **-R56** | Inductance Value | **0.56 µH** (R denotes decimal) | | **M** | Tolerance | **±20%** | --- ### 2. Technical Specifications These parameters define the electrical behavior and limitations of the component: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.56 µH | | **Tolerance** | ±20% | | **Test Frequency** | 25.2 MHz | | **Self-Resonant Frequency (SRF)** | 160 MHz (Minimum) | | **DC Resistance (DCR)** | 0.45 Ω (Maximum) | | **Rated Current (Idc)** | 450 mA (Maximum) | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Physical & Material Characteristics * **Construction:** Wire-wound core. The wire is coiled around a ceramic or ferrite core and then molded or encapsulated for protection. * **Encapsulation:** The "Molded" (CTMC) aspect means the internal winding is protected by a thermoset plastic resin, providing excellent mechanical strength and resistance to moisture. * **Termination:** Solder-plated terminals (usually Matte Tin over Nickel) compatible with reflow soldering processes. --- ### 4. Applications Due to its small footprint and high self-resonant frequency, the CTMC1008F-R56M is typically found in: * **RF Circuits:** Matching networks and high-frequency filters. * **Mobile Devices:** Power management in smartphones and tablets. * **Telecommunications:** Signal conditioning in wireless base stations. * **Decoupling:** Filtering high-frequency noise from power supply lines. ---