Ultimate Electronic Components Reference Guide

The most comprehensive visual guide to electronic components with specifications, applications, pinouts, and interactive features.

320+ Components 16 Categories 48 Subcategories Visual Examples Advanced Search

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Component Distribution by Category

Resistor
Capacitor
Inductor
Diode
Transistor
IC
Connector
Sensor

Most Common Components

Metal Film Resistor

General purpose, low noise

0805, 0603

MLCC Capacitor

Decoupling, filtering

0402, 0603

1N400x Diode

Power rectification

DO-41

2N3904 Transistor

General switching

TO-92

ATmega328P

Microcontroller

TQFP, DIP

Recently Added

BME280

Environmental sensor

I2C/SPI

OLED SSD1306

128x64 display

I2C

NEMA 17

Stepper motor

1.8°/step

JST XH

Battery connector

2.5mm pitch

18650

Li-ion cell

3.7V
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Additional Resources

Component Selection Guide

Learn how to choose the right components for your circuit design based on specifications and applications.

Footprint Reference

Detailed information about component packages and footprints for PCB design with CAD library downloads.

Circuit Design Patterns

Common circuit configurations using these components with example schematics and calculations.