🌡️ MY18E20 Digital Temperature Sensor — TO-92
The MY18E20 is a DS18B20-compatible 1-Wire digital temperature sensor in a standard TO-92 package. It reports temperature as a digital value over a single data line, so you can chain several sensors on one GPIO and read each one by its unique 64-bit address.
✨ Key Features
- 1-Wire digital interface — one data pin plus power and ground
• DS18B20-compatible command set and libraries
- Each sensor has a unique 64-bit ID, so multiple sensors share one bus
• Selectable 9–12-bit resolution
• No external ADC or calibration needed
• Standard TO-92 through-hole package
🔬 Specifications
- Supply voltage: 3.0–5.5V DC
- Temperature range: −55 °C to +125 °C
- Accuracy: ±0.5 °C typical over −10 °C to +85 °C
- Resolution: 9 to 12 bits, user-selectable
- Interface: 1-Wire (single data line)
- Package: TO-92, 3 pins
- Body size: approx. 4.7 × 4.7 mm, 19 mm leads
🧰 Perfect for
- Room, fridge, freezer and greenhouse monitoring
- Waterproof probe builds when potted in a tube
• Multiple-sensor networks on one data line
- Arduino, ESP8266/ESP32 and Raspberry Pi projects
- Thermostats, data loggers and incubators
Tip: a 4.7 kΩ pull-up resistor from DATA to VCC is required on the 1-Wire bus.
