DS18B20 Digital Temperature Sensor (TO-92)

The DS18B20 Digital Temperature Sensor is a 1-Wire digital sensor housed in a compact TO-92 package, delivering 9 to 12-bit temperature readings directly over a single data line. Each sensor carries a unique 64-bit serial code, so multiple DS18B20 sensors can share the same data bus.

Key features:

• 1-Wire Digital Interface: Communicates temperature data over a single data pin, reducing wiring compared to analog sensors.
• Wide Temperature Range: Measures from -55°C to +125°C, with ±0.5°C accuracy from -10°C to +85°C.
• Configurable Resolution: User-selectable resolution from 9 to 12 bits (0.5°C down to 0.0625°C).
• Unique Serial ID: Each chip has a factory-programmed 64-bit address, allowing many sensors to share one bus.
• Parasite Power Mode: Can draw power directly from the data line, removing the need for a separate power wire in some setups.
• Compact TO-92 Package: Standard 3-pin transistor-style package for easy breadboarding.

It’s a popular choice for weather stations, 3D printer hotends, and multi-point temperature logging projects.