The **SS26V-R300038** is a specific model of a **Common Mode Choke Coil** manufactured by KEMET (formerly Tokin). These components are primarily used in power supply circuits to suppress electromagnetic interference (EMI). --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical and physical characteristics. | Feature | Specification | | :--- | :--- | | **Component Type** | AC Line Filter / Common Mode Choke | | **Series** | SS26V (High permeability core) | | **Rated Current** | 3.0 Amperes | | **Inductance (min)** | 3.8 mH | | **DC Resistance (max)** | 0.110 $\Omega$ | | **Rated Voltage** | 250 VAC | | **Temperature Range** | -25°C to +120°C | --- ### 2. Core Functions The SS26V series is designed to handle noise in high-current power lines. Its primary roles include: * **Common Mode Noise Suppression:** It blocks high-frequency noise that flows in the same direction on both power lines (Line and Neutral) while allowing the power frequency (50/60Hz) to pass through. * **EMI Compliance:** Helps electronic devices meet regulatory standards (like FCC or CISPR) regarding electromagnetic radiation. * **Circuit Protection:** Prevents external high-frequency interference from entering the sensitive internal electronics of a device. --- ### 3. Physical Construction The "SS26V" designation refers to the physical frame and orientation: * **Vertical Mount:** The "V" in the part number indicates a vertical orientation, which saves horizontal PCB space (footprint). * **Split Bobbin Design:** It features a dual-winding structure on a high-performance ferrite core. * **Dimensions:** Approximately 23mm x 19mm with a height of roughly 28.5mm. --- ### 4. Typical Applications You will commonly find this component in the input stage of: * Switching Mode Power Supplies (SMPS). * LED Lighting drivers. * Consumer electronics (TVs, Audio equipment). * Office automation equipment (Printers, Copiers).