The **SS30V-R100700** is a high-performance **Common Mode Choke Coil** manufactured by KEMET (Tokin). It is designed to suppress electromagnetic interference (EMI) in power supply lines. --- ## 1. Component Overview The SS30V series is known for its high permeability and high inductance within a compact vertical footprint. The "R100700" suffix defines its specific electrical performance characteristics. ### Key Specifications | Parameter | Value | | :--- | :--- | | **Model Number** | SS30V-R100700 | | **Rated Current** | 1.0 A | | **Inductance (Min)** | 70.0 mH | | **DC Resistance (Max)** | 0.77 Ω per line | | **Temperature Rise (Max)** | 50 K | | **Operating Temperature Range** | -25°C to +120°C | | **Dielectric Withstanding Voltage** | 2400 VAC (2 seconds) | --- ## 2. Structural Features The device is built using a **Mn-Zn (Manganese-Zinc)** ferrite core, which is optimized for high-frequency noise suppression. * **Vertical Configuration:** The "V" in the part number indicates a vertical mount, which saves valuable PCB real estate. * **Dual Winding:** It features two balanced windings on a single core to neutralize common mode noise while allowing differential (signal/power) current to pass. * **Bobbin Design:** High-insulation materials are used to ensure safety in high-voltage applications. --- ## 3. Operating Principle The SS30V-R100700 acts as a filter: 1. **Common Mode Noise:** When noise flows in the same direction on both lines, the magnetic fields add up, creating high impedance and blocking the noise. 2. **Differential Mode Current:** The power current flows in opposite directions; the magnetic fields cancel out, allowing the current to pass with minimal resistance. --- ## 4. Typical Applications This component is primarily used in the AC input stage of electronic devices to comply with EMC (Electromagnetic Compatibility) regulations. * **Switching Power Supplies:** Used in industrial and consumer-grade SMPS. * **Audio-Visual Equipment:** Preventing line noise from affecting signal clarity. * **Office Automation:** Printers, copiers, and computing peripherals. * **Appliances:** Digital controllers for home electronics. --- ## 5. Wiring Diagram / Footprint The component typically uses a standard 4-pin layout for through-hole mounting. ```text Pin 1 [In] --- (Winding A) --- Pin 4 [Out] Pin 2 [In] --- (Winding B) --- Pin 3 [Out] ```