Electronics Reference Toolkit
Resistor, LED & Transistor
Only for iPhone
Free · Designed for iPhone
iPhone
ElecKit is a lightweight electronics toolkit built for fast lookups and quick calculations—perfect for students, hobbyists, and engineers.
Tools included
- Resistor Calculator (4/5 band) + tolerance & range
- Ohm’s Law (V/I/R/P)
- LED Resistor Calculator (Vs, Vf, If)
- Capacitor Decoder (3-digit & EIA codes)
- Voltage Divider (2 or 3 resistors)
- RC/RL Time Constant with charging curve & key points (1τ…5τ)
- Unit Converter (Ω, F, H, Hz + prefixes)
- Battery Life Estimator (battery type, load current, duty cycle)
- Transistor Reference (NPN, PNP, MOSFET) with fast search & filters
Notes
* Designed for speed, clean UI, and offline use.
* Reference values may vary by manufacturer—always confirm with the datasheet.
Ratings & Reviews
• Bug fixes & performance improvements
• Added 4 new engineering tools: CMS Code Decoder, Resistor Power, Wire Voltage Drop & RLC Analyzer
The developer, Ha Do Thi Thu, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ha Do Thi Thu
- Size
- 7.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Ha Do