The **CTC3F-R10M** is a specific model of a **Fixed Inductor** (Leaded Inductor) commonly used in electronic circuits for signal filtering and power management. --- ### 1. General Specifications The part number follows a standardized coding system. Here are the primary technical characteristics of the **CTC3F-R10M**: | Feature | Specification | | :--- | :--- | | **Inductance** | 0.1 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **Component Type** | Axial Leaded Inductor | | **Core Material** | Ferrite | | **Current Rating** | Typically High (depending on exact series, usually ~1A to 2A) | | **DC Resistance (DCR)** | Very Low (mΩ range) | --- ### 2. Breakdown of the Part Number Understanding the nomenclature helps in identifying equivalent parts: * **CTC3F**: The Series identifier. This usually refers to a conformal coated, axial-leaded inductor designed for reliability. * **R10**: The Inductance value. The "R" acts as a decimal point. * $R10 = 0.10\ \mu H$ * **M**: The Tolerance code. * $M = \pm 20\%$ * *(Note: K would be $\pm 10\%$, J would be $\pm 5\%$)* --- ### 3. Key Electronic Functions The CTC3F-R10M serves several critical roles in a PCB assembly: 1. **EMI/RFI Filtering**: It acts as a low-pass filter, blocking high-frequency noise from entering or leaving a circuit. 2. **Decoupling**: Used in power supply lines to prevent voltage spikes or oscillations from affecting sensitive components. 3. **Energy Storage**: In very small DC-DC conversion stages, it can store energy in its magnetic field, though 0.1µH is more common for high-frequency filtering. --- ### 4. Physical Characteristics * **Form Factor**: It looks similar to a resistor (cylindrical body with two wire leads). * **Coating**: Usually epoxy or conformal coated to protect the copper windings from moisture and oxidation. * **Mounting**: Through-hole technology (THT). --- ### 5. Common Applications * Consumer electronics (TVs, Radios). * Telecommunication equipment. * Power supply filtering. * Automotive electronic control units.