100 µF, 16V (Aluminium Electrolytic)

100 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 100 μF electrolytic capacitor is a standard polarized component used for energy storage, voltage smoothing, and low-frequency filtering. Its primary applications include bypassing ripple in power supply converters, decoupling noise in microcontroller boards, and stabilizing audio signals in amplifiers.

Common applications and use-cases include:
Power Supply Filtering & Smoothing: Used to smooth out rectified alternating current (AC) into direct current (DC) by absorbing voltage ripples and sudden drops in adapters and switched-mode power supplies (SMPS).Decoupling and By-passing: Placed near voltage regulators or integrated circuits (ICs) to act as a local energy reservoir, buffering current draw and preventing sudden voltage drops during peak system loads.
Audio Circuits: Acts as a coupling or bypass capacitor to pass, block, or decouple low-frequency AC signals between stages in preamplifiers and power amplifiers.
Timing Circuits: Utilized alongside resistors in RC (resistor-capacitor) timing configurations for delay circuits or oscillators.