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Multifunctional engineering calculations of electronic circuits and componentsSearch by section D.E.V.I.C.E. services3 phase calculator is an easy-to-use online tool to quickly determine the parameters of balanced three-phase circuits in both Delta and Star configurations. A balanced 3-phase circuit has the same voltages, currents, and power factors in all three phases. Area and volume calculator is an easy-to-use online tool to quickly determine the area or volume by entering length, width and height in various measurement units.
This online battery life calculator allows you to estimate how long a battery will last in ideal conditions, based on nominal battery capacity and the device consumption (load current).
This calculator allows you to quickly determine capacitive reactance. Capacitive reactance depends on the frequency of the applied voltage and the capacitance.
Capacitor Code Calculator allows you to determine capacitance by the capacitor markings found on the device and to determine capacitor markings by capacitance. It displays rated capacitance, capacitor tolerance and voltage.
Capacitor Color Code Calculator allows you to determine capacitance by capacitor color coding. It displays rated capacitance, capacitor tolerance, temperature coefficient and maximum voltage all in one easy to read chart. This tool supports various color codes.
Color picker is an easy-to-use online tool with intuitive interface to quickly get RGB value, HSV value and HEX color code value for selected color. Also you can type RGB, HSV and HEX values in order to fine-tune your color selection.
dB Gain Calculator is a simple online tool to help you determine the ratio of output to input values in an electrical circuit on a logarithmic scale. This ratio is represented by decibels (dB).
Duty Cycle Calculator is an easy-to-use online engineering tool to help you determine the duty cycle and other pulse parameters.
High pass filter calculator is an easy-to-use tool to quickly determine the cutoff frequency of a high pass passive filter. This tool allows you to choose filter circuit: RC filter or RL filter.
Ideal transformer calculator is an easy-to-use online tool which helps engineers to determine the parameters of the ideal transformer.
This calculator allows you to quickly determine inductive reactance. Inductive reactance depends on the frequency of the applied voltage and the inductance.
A helpful tool for reading axial inductor color code values for a 3- and 4-band inductor. This tool allows you to determine inductance by inductor color coding and to determine inductor color coding by inductance. It displays Rated inductance and Inductor tolerance all in one easy to read chart.
LC circuit resonant frequency calculator is an easy-to-use tool to quickly determine the resonant frequency of an LC circuit (also called a resonant circuit) which contains only an inductor and a capacitor, in parallel or series.
This calculator is an online tool to quickly determine the resistor value required to use the LM317 / LM350 / LM338 as a voltage regulator circuit or current limiter circuit.
Low pass filter calculator is an easy-to-use tool to quickly determine the cutoff frequency of a low pass passive filter. This tool allows you to choose filter circuit: RC filter or RL filter.
Ohm's law calculator is an easy-to-use online tool to help you find the relationships between electric current (I), voltage (V) and resistance (R) across a given conductor. This tool allows you to calculate power (P) as well.
Operational amplifier gain calculator is an online engineering tool to help you determine the voltage gain of an operational amplifier. This calculator supports both inverting and non-inverting operational amplifier circuits. This tool also displays recommended resistor value as well as resistor color coding.
This online calculator allows you to quickly determine the value of resistors in a Pi attenuator, T attenuator or bridged T attenuator circuit. Just enter the desired attenuation (in dB) and impedance (Z) to calculate the needed resistors (R1 and R2) values.
A helpful tool for reading resistor color code values for a 4- and 5-band resistor. This tool allows you to determine resistance by resistor color coding and to determine resistor color coding by resistance. It displays Rated resistance, Resistor tolerance, Resistor length and Resistor power all in one easy to read chart.
This tool allows you to determine which resistors you should use when you have a RGB LED. It displays resistor value, recommended resistor wattage as well as resistor color coding.
RMS Voltage Calculator is an online tool to help you quickly calculate the RMS (Root Mean Square) of common waveforms (e.g. sine wave, square wave, triangle wave, sawtooth wave). You can also use this tool backward and let it determine the peak voltage and peak-to-peak voltage if you know the RMS voltage.
Series and Parallel Capacitor Calculator allows you to quickly determine the total equivalent capacitance of up to ten capacitors connected in series or in parallel. This tool supports two modes: you can calculate the total equivalent capacitance or calculate the missing capacitor.
This calculator allows you to determine the total equivalent resistance of up to ten resistors connected in series or in parallel.
This tool allows you to determine which resistor you should use when you have a single LED or a number of the same color of LEDs in series. It displays resistor value, recommended resistor wattage as well as resistor color coding.
SMD Capacitor Code Calculator allows you to determine capacitance by the SMD (surface mount device) capacitor markings found on the device and to determine SMD capacitor markings by capacitance. It displays rated capacitance, capacitor tolerance and voltage.
SMD Inductor Code Calculator allows you to determine inductance of a SMD (surface mount device) inductor by the markings found on the device and to determine SMD inductor markings by inductance. It displays rated inductance and inductor tolerance.
A helpful tool for reading SMD (surface mount device) resistor markings found on the device. It displays rated resistance and resistor tolerance.
When the relay closes and opens, its contacts can be damaged by the resulting electric discharge arc. To protect them, you can use RC chains installed in parallel with the relay or load. You can calculate the parameters of the elements needed for this here by entering the general characteristics of the circuit.
This calculator allows you to determine signal parameters of a square pulse generator built on the basis of the popular 555 microcircuit which can operate in astable (self-oscillating) mode.
This calculator allows you to determine signal parameters of a square pulse generator built on the basis of the popular 555 microcircuit which can operate in monostable mode.
Summing amplifier calculator is an online engineering tool to help you determine the output voltage of a summing amplifier based on an operational amplifier.
This calculator is an online tool to quickly determine the capacitor value required for transformerless power supply circuit. A simple transformerless power supply with resistive load can be used if there is a need to connect to the AC mains a load designed for a voltage much less than the mains voltage, for example, a soldering iron. In this circuit a capacitor and resistive load are connected in series to AC mains.
Online Units Converter allows you to convert 10 types of measurement units: Length, Weight, Temperature, Volume, Area, Speed, Time, Pressure and Energy. It is easy to use and is available in English and Spanish.
Voltage Divider Calculator is a simple easy-to-use tool that helps you evaluate the output voltage or resistors values in a single voltage divider according to Ohm's law.
Voltage drop calculator is an easy-to-use online engineering tool to help you determine what voltage is lost when the electric current moves through a wire. This calculator allows to specify the following factors, which influence the voltage drop: wire material, wire size, wire length, load current.
Wire fusing current calculator allows you to estimate the approximate DC fusing current for a given wire size and material according to the Preece's Law.
Wire resistance calculator allows you to quickly determine the electrical resistance of a specific wire. The resistance of a wire depends on its material and geometrical dimensions (length and diameter or cross-sectional area).
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