2200 µF, 50V (Aluminium Electrolytic)

2200 µF, 50V (Aluminium Electrolytic), Through hole

Identification and Orientation
The Long Lead Rule: The positive lead (anode) is visibly longer than the negative lead on through-hole models.
The Stripe Indicator: The capacitor body features a printed stripe (usually containing a minus symbol -) marking the negative lead.

A 2200µF electrolytic capacitor is a large-capacity, polarized energy-storage component. It is primarily used for power supply smoothing (eliminating AC ripple), bulk energy storage for sudden current demands, and low-frequency decoupling in circuits like audio amplifiers and industrial motor drivers.

Key Applications
Power Supply Smoothing: In AC-to-DC converters, it acts as a reservoir to smooth out pulsating DC voltage into a steady, stable DC output.
Audio Amplifiers: Used in the power supply stage of amplifiers to provide instant peak current when bass kicks in, preventing voltage drops and distortion.
DC-DC Converters: Helps stabilize the input and output lines by absorbing sudden load transients.