The **SS20H-R06200** is a common mode choke coil (inductor) primarily used for noise suppression in power supply circuits. It is manufactured by companies like KEMET (formerly Tokin). ### Technical Specifications Below are the primary electronic characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Series** | SS20H | | **Rated Current** | 0.6 A (Amperes) | | **Inductance (min)** | 20.0 mH (Millihenries) | | **DC Resistance (max)** | 1.10 $\Omega$ (per line) | | **Rated Voltage** | 250 VAC | | **Temperature Rise** | 45 K (Max) | | **Operating Temperature** | -25°C to +120°C | --- ### Key Electronic Components & Features #### 1. Core Material The device utilizes a **High-Permeability Ferrite Core**. In the SS20H series, the "H" typically signifies a high-frequency material optimized to provide high impedance across a wide range of frequencies, effectively blocking electromagnetic interference (EMI). #### 2. Winding Structure * **Dual Windings:** It consists of two separate coils wound on a single core. * **Common Mode Suppression:** The windings are arranged so that magnetic fluxes created by common-mode noise (noise traveling in the same direction on both lines) cancel each other out, creating high impedance to block the noise. * **Differential Mode:** For the desired power signal (differential mode), the fluxes add up to zero, allowing the current to pass with minimal resistance. #### 3. Physical Construction * **Type:** Through-hole vertical mount. * **Separated Bobbin:** The bobbin is designed to maintain high dielectric strength and insulation between the two coils to prevent arcing at 250V AC. --- ### Typical Applications * **Switch Mode Power Supplies (SMPS):** Used at the AC input stage to prevent noise from the power supply from feeding back into the utility line. * **Consumer Electronics:** Found in TVs, adapters, and office automation equipment. * **EMI Filtering:** Essential for meeting regulatory standards (like FCC or CE) regarding radiated and conducted emissions. --- ### Identification Breakdown * **SS:** Series Name (Standard Type) * **20:** Core Size/Dimensions * **H:** High Permeability Material * **R:** RoHS Compliant * **06:** Rated Current (0.6 Amperes) * **200:** Inductance Value (20.0 mH)