## Analysis of the SSHB10H-R05500 Common Mode Choke The **SSHB10H-R05500** is a high-performance, dual-coil common mode choke manufactured by **KEMET**. It is specifically designed for EMI (Electromagnetic Interference) suppression in power supply circuits. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical and physical properties: | Parameter | Value | | :--- | :--- | | **Inductance (Min)** | 50.0 mH | | **Rated Current (AC)** | 0.5 A | | **DC Resistance (Max)** | 2.30 $\Omega$ | | **Temperature Rise (Max)** | 45 K | | **Operating Temperature Range** | -25°C to +120°C | | **Voltage Rating** | 250 VAC | | **Weight** | ~10 grams | --- ### 2. Key Features and Materials * **Hybrid Core Technology:** The "SSHB" series utilizes a proprietary ferrite core material that combines the characteristics of both common mode noise suppression and normal mode noise suppression in a single unit. * **High Permeability:** This allows for high inductance in a relatively small footprint. * **Vertical Configuration:** The "H" in the part number signifies a vertical mounting orientation, which saves valuable PCB real estate. * **Safety Standards:** Compliant with RoHS and REACH regulations. --- ### 3. Electronic Functionality The SSHB10H-R05500 serves two primary functions in a circuit: 1. **Common Mode Noise Suppression:** It provides high impedance to noise signals that are in-phase on both the line and neutral wires, preventing them from entering or exiting the device. 2. **Differential (Normal) Mode Suppression:** Due to its hybrid design, it also offers leakage inductance which helps filter out noise occurring between the two lines. --- ### 4. Common Applications This component is typically found in the input filter stage of: * **Switch Mode Power Supplies (SMPS):** Filtering high-frequency switching noise. * **LED Lighting:** Ensuring compliance with electromagnetic compatibility (EMC) standards. * **Audio-Visual Equipment:** Preventing buzz and interference in sensitive circuits. * **Office Automation:** Used in printers and copiers to stabilize power lines. --- ### 5. Footprint and Dimensions `SSHB10H` refers to a specific casing size: * **Width:** ~18.0 mm * **Depth:** ~13.0 mm * **Height:** ~19.0 mm * **Pin Pitch:** 10.0 mm x 13.0 mm