# Temperature sensor DS18B20, TO-92, IC

> Digital temperature sensor DS18B20 (Dallas), TO-92 package with 3 pins, uses the OneWire protocol over a single data pin with a unique 64-bit ROM address. Supply voltage 3-5.5VDC, measuring range -55...+125°C, accuracy ±0.5°C, selectable resolution 9-12 bit. Requires a 4.7K pull-up resistor for OneWire operation, using only the DATA and GND pins.

- Page: https://sigmanortec.ro/en/temperature-sensor-ds18b20-to-92-ic
- Price: 7.60 RON
- Availability: Out of stock
- Reference: 9127 · EAN: 5947192207532
- Category: Mechatronics and IoT > Sensors and Modules > Temperature and Environmental Sensors
- Package (shipping data): 0.003 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:37 (Europe/Bucharest)

## Description

Digital temperature sensor with OneWire protocol, ideal for Arduino and automation projects, uses a single data pin and allows connecting multiple sensors via a single 64-bit ROM address. Operates at 3-5.5V, measures between -55 and +125°C with ±0.5°C accuracy and selectable 9-12 bit resolution, in a compact TO-92 package.
Temperature sensor with "one wire" protocol, DS18B20, with 3 pins.
It requires only one pin for communication, each sensor has a 64-bit ROM address.
The resolution of the thermometer can be set between 9 and 12 bits.
It needs a 4.7K pull-up resistor to be used with the onewire protocol, only with the DATA and GND pins.
Specifications:
Supply voltage: 3 - 5.5VDC
Housing: TO-92
Producer: Dallas
Number of pins: 3
Measured temperature: -55 - +125 degrees C
Accuracy: +-0.5 degrees C
OneWire Compatible: Yes (with 4.7k resistor)
Arduino Instructions:
- Click here