Electronics Toolkit Pro

Electronics Toolkit Pro


(3 stars)


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1,000 - 5,000 downloads

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Provides a useful interface for calculating unknown quantities in the fields of electronics and electrical engineering. Current features include:

Resistor colour codes - tells you the resistance, tolerance, upper and lower values, and E-series information for any colour-coded resistor.

Ohm's Law and Power Calculator - Finds any unknown quantity in terms of voltage, current, resistance and power dissipation for any omhic component.

Series/Parallel Value Calculator. Finds the total value for any series or parallel combination of resistors, capacitors, or inductors. The calculator can also find an individual value given the value for the whole combination.

Reactance Finder - Calculates the reactance of any capacitor or inductor from the circuit frequency.

Power Triangle - Calculates real, apparent, and reactive power dissipation as well as impedance phase angle in any electrical system.

Resistivity - Finds the resistance of any wire or prism from its dimensions and resistivity, or vice versa.

Magnetic Fields - Finds the force that acts on a conductor in a magnetic field.

Capacitors - Finds the charge and energy stored in a capacitor.


Amplifiers - Finds the voltage gain of an inverting or non-inverting operational amplifier circuit, as a ratio and in decibels.

555 Astable/Monostable Circuits - Finds the output frequency, period, and duty cycle of the popular NE555 timer IC, for given component values.

Resistivity Table - Lists the resistivity and temperature coefficient for 35 common materials.

Capacitance - Finds the capacitance of two parallel plates separated by a dielectric.

Permittivity Table - Lists the average dielectric constant for 35 common materials.

Waveforms - Finds the peak, RMS, and mean voltages of some common AC waveforms.

Resonance - Calculates the resonant frequency of a series RLC circuit, and the impedance at this frequency. Plots a graph of impedance against frequency.

LED Resistors - Finds the minimum resistance needed to prevent damage to a number of LEDs in series. Also finds suitable E6, E12, and E24 series resistors.

Star/Delta Resistors - Converts a star (Y) resistor configuration into the equivalent delta (Δ) configuration, or vice versa.

Capacitor Charging - Finds the voltage across a charging or discharging capacitor after a given time period.

List of 4000 Series ICs - Details of common integrated circuits.

Many more electrical utilities coming soon, with regular updates. Plus, NO ADS.

Please rate or give feedback. Feel free to give suggestions or comments.

Tags: electronics toolkit pro 1.4, series rlc impedance, plot impedance frequency series parallel rlc, electronics resistance.

Recently changed in this version

23/02/12 (1.1) - Improved UI
25/02/12 (1.2) - Bug fixes, added 555 monostable calculator.
28/02/12 (1.3) - Removed a bug causing 'Webpage not Available' errors in the resonance and series/parallel converter calculators.
31/10/12 (1.4) - Added capacitor tools, magnetic fields and 4000 series ICs. Allows screen rotation and numeric keyboard.
3/11/13 (1.5) - Fixed LED Resistor Calculator

Comments and ratings for Electronics Toolkit Pro
  • (54 stars)

    by Michael Coziar on 08/03/2014

    I like it cause it helps me in electronics diagnosing

  • (54 stars)

    by lourens harmse on 04/02/2014

    As a instructor in the electrical/electronic field I find it very usefull especially for the newcommer. Keep up the good work. Thanks.

  • (54 stars)

    by Griff Griffo on 01/01/2014

    Helps alot...no more trying to rember every fomula when you are in a hurry or out on site...absoloutly worth it...10Stars

  • (54 stars)

    by Kennie Augustus on 30/11/2013

    I can see were this will be a very useful app for me I work in an industrial plant as a facilities lead person. Its always nice to have what you need when you need it on a daily based thanks for all the great information
    I would like to see a search of some sort to were if you don't understand what something is or how it relates, this would be an awsome add on. Im sure that would be alot of wor

  • (54 stars)

    by Charles Lim on 26/11/2013

    Great for a beginner

  • (54 stars)

    by David Updegraff on 07/11/2013

    Great study aid.

  • (54 stars)

    by Gideon du Toit on 24/10/2013

    This is awsome. Looking for a long time to find a app like this.

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