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Electronic Circuits Calculations Menu
Ohms Law (Power, Voltage, Current, Resistance)
Frequency, Wavelength, Period
LED resistor value
Capacitors in Series
LM317 Voltage Regulator
Heat Sink Size/Rating
Würth Elektronik has published
, a new online tool to simulate power inductors.
Phase Noise to Jitter Calculator
assists in evaluating rms phase jitter over varying bandwidths.
Thermal Analysis Calculator
estimates "package bottom" temperature based on PCB construction.
Trojan Battery Co. has developed an
automated battery sizing calculator
to accurately size a battery bank for renewable energy applications.
provides high performance / reliability interconnects for severe environments dedicated to the Aerospace, Defense, Space and Industrial Equipment markets.
C&M Corporation has created a
Coil Cord Calculator
RF Transmission Line Loss Calculator
computes the matched line loss for a transmission line.
provides brand-independent electric motor selection
Enter 2 callsigns to get the QSL addresses and the distance, (in miles or kilometers), between them plus miles/watt with the
from Copasetic Flow.
IHLP Core Loss Calculator
is a free tool that assists designers in selecting the proper IHLP inductor based on the operating conditions of their circuit.
trace width for printed circuit boards
based on a curve fit to IPC-2221 (formerly IPC-D-275)
Decibels and Distance calculator
A selection of
Antenna design calculators
Steve Ekblad's Free Audio Software Page and On-Line Audio Tools
Standing Wave Calculator
for a standard speaker enclosure
is a simple, lightweight planner for your DIY prototypes.
allows you to create a virtual environment using breadboards, Arduinos, etc., then you can simulate the circuit in your browser.
is the latest browser-based PCB design tool.
provides on-demand plug and play 3D CAD models or PDFs for popular connectors.
is a printed circuit board manufacturer offering free PCB design software and online ordering.
8-Bit Interface Simulator
FETBench WebSim MOSFET Simulator
This applet allows users to simulate standard optic elements (lens, mirror, dielectrics, sources, apertures) and observe the ways that light rays propagate through these elements.
Virtual Oscilloscope (Shockwave Simulation)
Resistor Colour Codes
is a free marketplace for all things electron related.
Free pdf versions of
current, in-force ITU-T Recommendations
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