ElectronicsZone
Your definitive resource for electronic component equivalents, calculators, and circuit templates
Everything You Need
From finding component replacements to designing complete circuits, CircuitAlchemy provides all the tools you need for your electronics projects.
Component Equivalents
Find replacement parts for MOSFETs, transistors, and ICs with our comprehensive database of electronic component equivalents.
Electronics Calculators
Simplify your design process with our collection of calculators for common electronic formulas and conversions.
Circuit Templates
Access ready-to-use circuit templates categorized by complexity level to jumpstart your electronics projects.
Project Repository
Explore our collection of beginner to advanced electronics projects with detailed instructions and component lists.
Find Components Fast
Search our comprehensive database with intelligent suggestions and quick access to popular components
Popular Components
Most searched and commonly used electronic components
Quick Categories
Browse components by category
Component Wizard
Not sure which component to choose? Our intelligent wizard asks a few simple questions about your project and recommends the perfect components for your needs.
Application Focus
Tell us what you're building
Smart Matching
AI-powered recommendations
Perfect Match
Get exactly what you need
Advanced Filtering
Multiple criteria analysis
Popular Component Equivalents
Quickly find replacement options for commonly used electronic components
Transistors
2N3904
Popular Equivalents
BC547
Popular Equivalents
2N2222
Popular Equivalents
MOSFETs
IRF540N
Popular Equivalents
2N7000
Popular Equivalents
IRLZ44N
Popular Equivalents
Electronics Calculators
Save time with our specialized calculators for common electronic design tasks
Ohm's Law
Calculate voltage, current, resistance, and power in electrical circuits
LED Resistor
Calculate the appropriate resistor value for LEDs in various configurations
Voltage Divider
Calculate output voltage from a resistive voltage divider network
Featured Circuit Projects
Step-by-step guides for building practical electronics projects with detailed schematics and instructions
LED Flasher Circuit
Simple circuit that alternates between two LEDs using a 555 timer
Components:
Audio Amplifier
Build a small audio amplifier using common transistors
Components:
Digital Logic Clock
Create a digital clock using logic ICs and 7-segment displays
Components:
Ready to Dive In?
Explore thousands of components or start your next project with our circuit templates.