App info
- Installs
- 1,000+
- Category
- Education
- Content rating
- Everyone
- Version
- 1.5.0
- Released
- Apr 6, 2026
- Last updated
- 12 Sept 2026
- In-app purchases
- No
- Contains ads
- No
- Promo video
- No
- Requires Android
- 10
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What's newin version 1.5.0
Tables with typical ESR values of electrolytic capacitors with filters for operating voltage and capacitance. Chart with dimensions of common SMD packages, including both metric and imperial designations. New pinouts: Power over Ethernet (802.3af/at/bt), RJ11, RJ14, RJ25, ATmega328P, ATmega32U4, ATmega4809, ATtiny85, ATtiny84A.
About this app
Calculators and references
Read full description
One of the best apps for anyone interested in electronics. The app has the following calculators and references: • Resistor color and digit marking (4, 5 and 6 band color code; 2 symbols, 3/4 digit and EIA-96 code SMD resistors code) • Pinouts Guide (USB, Apple, Arduino, ESP32, ESP8266, Raspberry Pi, FireWire, HDMI, DisplayPort, DVI, VGA, RS-232/422/485, SD, PS/2, Audio Jack, RCA, MIDI, XLR, ATX, PCI Express, Thunderbolt, Fan, Microchip & Atmel, Radxa Rock Pi, LubanCat, Nucleo32, Flipper Zero, Ethernet RJ45, PoE, RJ11/RJ14/RJ25, SATA, M.2, LPT, Game Port, Orange Pi, Teensy) • Ohm's law calculator • Cable Voltage Drop • Voltage Divider • Schematic Symbols Reference (IEC 60617) • Capacitor Code Calculator • Capacitor Markings Reference • Electrolytic Capacitor ESR Tables • SMD Packages Chart Privacy Policy: https://www.eehelper.app/android/privacy Terms of Use: https://www.eehelper.app/android/terms