2 x DS18B20 Digital Temperature Sensor Chip TO92


56 in stock

SKU: DS18B20 1 Wire Digital Thermometer 2 Pack Category: Tags: , , , , , ,


The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points.

The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor.

In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus.

Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area.

Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.


  • Supply voltage : 3.0 – 5.5V
  • Supply current : 1 – 1.5mA
  • Accuracy : ± 0.5 (-10°C to +85°C), ± 2 (-55°C to +125°C)
  • Resolution bit : 12bit
  • Package type : TO-92
  • Pins : 3
  • Operating temperature range : -55°C to +125°C
  • Output Type : Digital

Additional information