The **AC20-R068M-RC** is an electronic component manufactured by **Bourns**. It belongs to the category of **Common Mode Chokes** (Inductors), specifically designed for AC power line applications to suppress electromagnetic interference (EMI). --- ## Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Bourns | | **Component Type** | Common Mode Choke | | **Inductance** | 6.8 mH | | **Tolerance** | ±20% | | **Rated Current** | 2.0 Amperes | | **DCR (Max)** | 0.160 Ohms | | **Mounting Type** | Through Hole | | **Package / Case** | Vertical Radial (AC20 Series) | | **RoHS Status** | Compliant (indicated by the "-RC" suffix) | --- ## Key Features * **Noise Suppression:** It is highly effective at filtering out high-frequency common-mode noise from AC lines while allowing the desired power signal to pass. * **High Impedance:** Provides significant impedance over a broad frequency range to prevent interference from entering or leaving a device. * **Compact Design:** The vertical radial mounting saves board space compared to horizontal alternatives. * **Safety Compliance:** Designed to meet standard safety requirements for power line components. --- ## Part Number Breakdown Understanding the nomenclature helps in identifying the specific variant: 1. **AC20**: Series designation (Common Mode Choke, small form factor). 2. **R068**: Inductance value code (6.8 mH). 3. **M**: Tolerance (M = ±20%). 4. **RC**: RoHS Compliant. --- ## Typical Applications 1. **Switching Power Supplies (SMPS):** Used at the input stage to reduce EMI emissions back into the grid. 2. **LED Lighting Drivers:** Prevents flicker and noise interference in lighting circuits. 3. **Home Appliances:** Integrated into washing machines, refrigerators, and TVs to ensure electromagnetic compatibility (EMC). 4. **Industrial Controllers:** Protects sensitive logic circuits from power line surges and noise.