DS18B20 Temperature Sensor – KSH 200 at HIMASTORES Mombasa – best electronics in Kenya
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DS18B20 Temperature Sensor

SKU: HMJ153 Category: Transistors
KSH 200.00
In Stock

Product Description

DS18B20 Digital Temperature Sensor (to 92)

Precision 1Wire Digital Thermometer in TO92 Transistor Package

The DS18B20 is a popular digital temperature sensor that comes in a small, threepin package resembling a transistor [citation:1][citation:7][citation:9]. This form factor makes it easy to integrate into breadboards and PCBs, as it fits directly alongside components like the 2N2222 or 2N3904 . Despite its appearance, it is a complex integrated circuit containing a temperature sensor, control logic, and a unique 1Wire serial interface [citation:3][citation:7][citation:9].

TO92 Package Looks like a transistor, fits standard breadboards and PCBs.
Digital 1Wire Interface Uses only one data pin for communication [citation:1][citation:4][citation:11].
Operating voltage: 3.0V to 5.5V [citation:2][citation:4].
Temperature range: 55°C to 125°C, with ±0.5°C accuracy from 10°C to 85°C [citation:2][citation:4][citation:11].
A 4.7kΩ pull-up resistor is required between the data line and VCC for stable communication [citation:7][citation:10][citation:14].
Each DS18B20 has a unique 64-bit serial code, allowing multiple sensors on the same bus [citation:1][citation:4].

Pin Configuration (Flat Side Facing You, Leads Down)

PinNameDescription
:-:-:-
1 (Left)GNDGround (0V)
2 (Middle)DQData line (1-Wire)
3 (Right)VDDPower supply (3.0V to 5.5V)

> The sensor can also be operated in "parasite power" mode, requiring only GND and DQ lines [citation:2][citation:4].

In parasitic mode, VDD is connected to GND, and the sensor draws power from the DQ line.

Key Features

+1Wire Interface Requires only one data pin and one pull-up resistor for communication [citation:1][citation:2].

High Accuracy ±0.5°C accuracy over the 10°C to 85°C range [citation:2][citation:4][citation:11].

+Programmable Resolution - 9 to 12 bits (0.5°C to 0.0625°C resolution) [citation:2][citation:4][citation:11].

+MultiDrop Capable Multiple sensors can share the same data bus [citation:1][citation:4][citation:11].

= Applications =

  1. Temperature monitoring for HVAC and environmental control [citation:4].
  2. Industrial automation and process monitoring [citation:4].
  3. Arduino and Raspberry Pi projects for weather stations, thermostats, and data logging [citation:7][citation:11].
  4. Distributed temperature sensing systems [citation:2][citation:4].
  5. Equipment and machinery temperature monitoring [citation:4].
Versatile and Reliable Digital output ensures noiseimmune readings, even over long cable runs [citation:11].
Easy to Use - Simple interface with extensive library support in Arduino, Raspberry Pi, and other platforms.

√ Available in TO-92, SMD, and waterproof cable versions.

√ No calibration required - factory trimmed.