Low ESR (Equivalent Series Resistance) in electronics refers to a capacitor with minimal internal resistance, reducing energy loss as heat, decreasing voltage drops, and improving efficiency. It is critical in high-frequency, high-current, and power supply filtering applications to minimize noise and prevent overheating.
Low impedance in electronics refers to a circuit, component, or device having low resistance to the flow of alternating current (AC), typically measured in ohms (Ω). It allows high current flow, making it ideal for outputs (e.g., amplifiers) to drive loads efficiently, or inputs to reduce noise, though it can strain power sources.