Electronics Engineer Helper

Calculators and references

Free · In-App Purchases

One of the best apps for anyone interested in electronics. More than 100 thousands users use this app in their work or study. This app has the following calculators and references: • Datasheet search • Resistor color and digit marking (4, 5 and 6 band color code; 2 symbols, 3/4 digit and EIA-96 code SMD resistors code) • Electronic schematic symbols (IEC 60617, IEEE 315 and GOST standards) • Pinouts Guide (DVI, USB, Display Port, VGA, HDMI, Thunderbolt, Apple, RS-232/422/485, ATX, RCA, MIDI, XLR, Audio Jack, Arduino, Orange Pi, STM32, ESP32, and Raspberry Pi) • Ohm's law calculator • AWG converter (wire diameter, cross-section area, resistance and maximum current) • Resistor for LED • Voltage divider • Capacitor code • Capacitor markings • Capacitor ESR tables • Frequency response curve calculation of passive filters (RC, RL, RLC, LC) • Inductor color code • Linear current regulator • SMD packages list • Reactance • PCB trace resistance Additionally, by purchasing the PRO version of the app, you will get access to additional tools: • SMD components marking codes • Diodes color code (Pro Electron, JEDEC and JIS-C-7012 standards) • Linear voltage regulator • Resistor value to color marking converter • Voltage rectifier • Series or parallel electrical components' connection calculator • Diode voltage drop • Minimum PCB trace width • Analog to digital conversion Privacy Policy: https://rengate.github.io/EE-Helper-ToU-and-PP/PP.html Terms of Use: https://rengate.github.io/EE-Helper-ToU-and-PP/ToU.html

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In this update: - [PRO] New amplitude-phase frequency response plot (Nyquist plot) in passive filter editor. - Fixed crash in passive filter editor when run on macOS 26. - Color code tool for decoding marking of 25-pair cables. - Vietnamese and Thai localizations. Big thank you to everybody who subscribed or purchased the app's PRO version. Your support helps to make this app even better. If you like this app, please rate it and leave a review. Regards, Rostyslav

The developer, Rostyslav Dovhaliuk, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

    • Differentiate Without Colour Alone

    • Sufficient Contrast

  • Provider
    • Rostyslav Dovhaliuk
  • Size
    • 130.1 MB
  • Category
    • Productivity
  • Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    English and 14 more
    • English, French, German, Italian, Japanese, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Turkish, Ukrainian, Vietnamese
  • Age Rating
    13+
  • In-App Purchases
    Yes
    • Lifetime PRO Version USD 5.99
    • 1 Year Subscription USD 1.49
  • Copyright
    • © 2014 Rostyslav Dovhaliuk