220 µF, 16V (Aluminium Electrolytic)

220 µF, 16V (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 220µF electrolytic capacitor is a compact, polarized component primarily used for power supply filtering, DC decoupling, and signal coupling. Because of its larger capacitance, it acts as a local energy reservoir to smooth out voltage ripples, stabilize circuits, and filter unwanted noise in low-current devices.

Common, practical uses of this capacitor include:
Power Supply Smoothing: It smooths out rectified DC outputs in voltage regulator circuits to prevent voltage drops or fluctuations.
Noise Decoupling: Placed near ICs on logic boards or industrial controllers, it acts as a buffer to absorb transient spikes and stabilize voltage.AC Signal Coupling/Baking: In audio amplifiers and signal processing, it blocks DC voltages while allowing alternating AC signals to pass through stages without distortion.
Consumer Electronics: It is frequently found regulating power in routers, set-top boxes, and television circuit boards.