The **CTC3F-R56J** is a specific model of a fixed inductor, typically used in power supplies, signal processing, and decoupling circuits. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. General Specifications The part number follows a specific nomenclature that defines its electrical properties. | Parameter | Specification | | :--- | :--- | | **Component Type** | Fixed Inductor (Leaded/Axial) | | **Inductance Value** | 0.56 µH (Microhenries) | | **Tolerance** | ±5% (indicated by the 'J' suffix) | | **Series** | CTC3F (Conformal Coated Inductors) | | **Lead Finish** | RoHS Compliant / Lead-free | --- ### 2. Physical Characteristics The "CTC3F" series is characterized by its axial lead construction, which makes it suitable for **Through-Hole Technology (THT)** mounting on PCBs. * **Construction:** Ferrite core with a copper wire winding. * **Coating:** Epoxy resin conformal coating (usually green or blue) for environmental protection and insulation. * **Dimensions:** Typically 4.0mm in diameter and 10.0mm in length (standard for the 3F frame size). --- ### 3. Electrical Performance The performance of the CTC3F-R56J is defined by its ability to handle current and its behavior at high frequencies. | Feature | Description | | :--- | :--- | | **DC Resistance (DCR)** | Very low (typically < 0.10 Ω), minimizing power loss. | | **Rated Current** | High current handling (often between 1A to 2.5A depending on the manufacturer's specific thermal rating). | | **Self-Resonant Frequency (SRF)** | High frequency stability; suitable for RF applications and high-speed filtering. | | **Q-Factor** | Designed for a high quality factor to ensure efficiency in resonant circuits. | --- ### 4. Common Applications The CTC3F-R56J is versatile and used across various electronic sectors: 1. **Noise Filtering:** Used in EMI/RFI suppression to clean up signals in power lines. 2. **Decoupling:** Placed near integrated circuits to prevent high-frequency noise from entering the power rail. 3. **DC/DC Converters:** Acts as an energy storage element in small switching power supplies. 4. **Signal Conditioning:** Used in LC (Inductor-Capacitor) filters for audio or radio frequency processing. --- ### 5. Part Number Decoding The code `CTC3F-R56J` can be broken down as follows: * **CTC:** Manufacturer series prefix (often Central Technologies or similar). * **3F:** Size/Form factor code. * **R56:** The inductance value. "R" acts as a decimal point, resulting in **0.56**. * **J:** Tolerance code. **J = ±5%**, K = ±10%, M = ±20%.