The **SS24V-R20045-CH** is a specific part number typically associated with a **Common Mode Choke (Inductor)**, often manufactured by companies like KEMET or similar electronic component providers. These parts are primarily used for noise suppression in power supply circuits. --- ## 1. Technical Specifications The part number can be broken down into its electrical and physical characteristics: | Parameter | Value / Description | | :--- | :--- | | **Component Type** | Common Mode Choke | | **Rated Voltage** | 250 VAC / 250 VDC | | **Rated Current** | 4.5 Amperes (Approx. based on "45" suffix) | | **Inductance** | ~20 mH (Approx. based on "200" code) | | **Mounting Type** | Through-Hole (Vertical orientation "V") | | **Core Material** | High-permeability Ferrite | --- ## 2. Key Features and Construction * **Vertical Mounting (SS24V):** The "V" denotes a vertical configuration, which saves PCB (Printed Circuit Board) real estate compared to horizontal models. * **Dual Winding:** It features two separate windings on a single core. This allows it to pass "differential mode" current (the power you want) while blocking "common mode" noise (interference). * **Compact Design:** Designed for high-density power supply applications. * **Safety Compliance:** Usually meets UL, CSA, and IEC safety standards for insulation and flame resistance. --- ## 3. Typical Applications These components are critical in filtering Electromagnetic Interference (EMI) in the following devices: 1. **Switching Power Supplies (SMPS):** Used at the AC input stage to prevent high-frequency noise from entering the power grid. 2. **LED Lighting Drivers:** Suppresses noise generated by high-speed switching circuits. 3. **Consumer Electronics:** Found in TVs, AC adapters, and computer peripherals. 4. **Industrial Equipment:** Protects sensitive controllers from line noise. --- ## 4. Connection Diagram (Simplified) ```text AC Input (L) ----[ Coil 1 ]---- To Rectifier (L) AC Input (N) ----[ Coil 2 ]---- To Rectifier (N) ``` *The magnetic fields created by the load current cancel each other out, while the noise signals (traveling in the same direction) see high impedance and are filtered.* ---