Codey OnlineArduino & ESP32 component library › Ceramic Capacitor
Ceramic Capacitor
Passive parts

Ceramic Capacitor

Small non-polarized through-hole ceramic disc capacitor. Common values: 10pF, 22pF, 100pF, 1nF, 10nF, 100nF (0.1µF), 1µF. Used for decoupling/bypass on power supplies (typically 100nF close to each IC's Vcc pin), oscillator load (22pF on crystal pins), and high-frequency filtering. Not suitable for bulk energy storage.

Pinout — Ceramic Capacitor

Pin Signal Description
1 Lead 1
2 Lead 2

Wiring notes

2-pin non-polarized component. Use componentId capacitor-ceramic and put the value in the label, e.g. '100nF', '22pF', '1µF', '10nF'. Pins: 1 (left lead), 2 (right lead). Direction-independent — flip freely. Typical use: decoupling capacitor between Vcc and GND right next to a sensor/IC (100nF), crystal oscillator load capacitors (22pF from each crystal pin to GND).

Example wiring diagram — Ceramic Capacitor

From To Wire
board:5V x1:1 red
board:GND x1:2 black

Example Arduino code — Ceramic Capacitor

This example was written and compile-checked for the arduino-uno. Codey Online adapts it to any other supported board for you.

// Canonical beginner example for a ceramic capacitor on Arduino Uno
// This demonstrates a simple decoupling connection across 5V and GND.
// Ceramic capacitors are non-polarized, so either lead can go to either side.

void setup() {
  // No code is needed for a passive capacitor example.
}

void loop() {
  // The capacitor works continuously as a power-supply decoupling component.
}

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