The **ACE1V4532-110-R** is a high-performance **Common Mode Choke** (also known as a Common Mode Filter) designed primarily for automotive and high-reliability data line applications. It is manufactured by companies like **Coilmaster Electronics**. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature related to its size and characteristics. | Parameter | Specification | | :--- | :--- | | **Component Type** | Common Mode Choke | | **Package Size** | 4532 (Metric) / 1812 (Imperial) | | **Dimensions** | 4.5mm x 3.2mm x 2.8mm | | **Common Mode Impedance** | 11.0 kΩ (Typical) at 100MHz | | **Rated Current** | ~200mA to 300mA (Dependent on specific series) | | **DC Resistance (DCR)** | ~1.5 Ω to 2.5 Ω Max | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction The "4532" designation refers to the surface-mount (SMD) footprint. These parts are typically constructed using: * **Ferrite Core:** High-permeability material to suppress high-frequency noise. * **Winding:** Two insulated wires wound together to provide differential mode transparency while blocking common mode noise. * **AEC-Q200 Compliance:** Most parts in this series are automotive-grade, meaning they undergo rigorous vibration and thermal shock testing. --- ### 3. Function and Application The primary role of the ACE1V4532-110-R is **EMI (Electromagnetic Interference) Suppression**. #### How it works: * **Common Mode Signals:** It presents high impedance to noise signals traveling in the same direction on both lines, effectively filtering them out. * **Differential Mode Signals:** It allows the actual data signal (traveling in opposite directions) to pass with minimal attenuation. #### Common Applications: 1. **CAN-Bus / FlexRay:** Essential for automotive communication networks to prevent engine noise from corrupting data. 2. **Ethernet Lines:** Used in industrial and automotive Ethernet to meet EMC standards. 3. **Power Supply Lines:** Filtering small DC-DC converter outputs. --- ### 4. Part Number Breakdown While manufacturer codes vary slightly, the standard breakdown is: * **ACE:** Series Name (Automotive Common Mode Filter). * **1V:** Voltage rating/Series variation. * **4532:** Physical size (4.5mm x 3.2mm). * **110:** Impedance code (11 × 10^0 = 11.0kΩ). * **R:** Packaging type (usually refers to Tape & Reel). ---