Your companion for electronics tools, component identification, calculators, diagnostics and education.
Component ID
Identify SMD Components by markings, codes, and characteristics
Electronics Calculators
Find Resistor Color Codes, Calculate Ohms Law, Power Consumption, Battery Life, LED Resistors and more
Industrial
Industrial electronics, AC/DC Drive fault codes, calculate motor torque and poles and more.
Education
Learn electronics concepts, theory, and practical applications
Most Popular Tools
Our most frequently used component identification and calculation tools
SMD Marking Codes
Identify SMD components by their marking codes. Find transistors, diodes, ICs and more by their package markings.
IC Manufacturer Logos
Identify integrated circuit manufacturers by their logo markings. Comprehensive database of semiconductor company logos.
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law. Essential for all electronics design and repair work.
Resistor Color Code Calculator
Decode resistor values from color bands. Supports 3, 4, 5, and 6 band resistors with interactive color selection.
Capacitor Marking Codes
Decode capacitor value markings and identify capacitor types. Comprehensive guide to ceramic, electrolytic, and film capacitors.
LED Resistor Calculator
Calculate the perfect resistor value for LED circuits. Supports single LEDs, series, and parallel configurations.
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Component Identification
Identify electronic components with our comprehensive databases and reference tools
SMD Code Search
Identify SMD components by their marking codes. Find transistors, diodes, ICs and more.
SMD Resistor Codes
Decode SMD resistor markings and determine resistance values quickly.
IC Logos
Identify integrated circuit manufacturers by their logo markings.
IC Datasheets
Find technical documentation and specifications for integrated circuits.
Capacitor Marking Codes
Decode capacitor value markings and identify capacitor types.
Diode Color Markings
Identify diodes by their color bands and markings.
Opto Cross-Reference
Find equivalent optocouplers and optoelectronic components.
SMD Fuse Markings
Identify SMD Fuses by their marking codes.
Electronics Calculators
Calculate circuit values and component parameters with our specialized calculators
Ohms Law Calculator
Calculate voltage, current, resistance, and power.
Resistor Color Code Decoder
Decode resistor color bands and determine resistance values.
Parallel Resistor Calculator
Calculate the equivalent resistance of parallel resistors.
Power Calculator
Calculate electrical power parameters with various inputs.
Battery Life Calculator
Estimate battery runtime based on capacity and current draw.
Power Factor Correction
Calculate power factor correction capacitors for AC circuits.
Voltage Divider Calculator
Calculate output voltage with divider circuits and resistor values.
LED Resistor Calculator
Calculate current-limiting resistors for LED circuits.
VI Curve Trace Simulator
Analyze component characteristics with voltage-current curves.
Industrial Applications
Tools for industrial electronics, motor control, and power systems
AC Motor Torque Calculator
Calculate motor torque parameters for various applications.
Motor Poles Calculator
Calculate motor speed and frequency parameters based on pole count.
AC/DC Drive Fault Code Finder
Find VFD/DC Drive Fault Codes, causes and solutions.
VFD Parameters
Configure VFD settings for various motor applications.
VFD Harmonics
Analyze harmonics in VFD installations and power systems.
Power Factor Correction
Calculate power factor correction capacitors for industrial systems.
IGBT Module Cross-Reference
Find equivalent IGBT modules for power electronics applications.
Education
Learn electronics concepts, theory, and practical applications
Electronics Basics Course
Learn fundamental electronic concepts and principles.
Ohm's Law Tutorial
Master the fundamental law that governs electrical circuits.
Diodes
Learn about diode types, applications, and characteristics.
Electronics Quiz
Test your knowledge with interactive electronics quizzes.
Connect With Us
Join our growing community of electronics enthusiasts and repair experts