UMW DS18B20 TO-92 Digital Temperature Sensor -55°C to +125°C ±0.4°C

Name: UMW DS18B20 TO-92 Digital Temperature Sensor -55°C to +125°C ±0.4°C
Brand: UMW
SKU: SENS-3904
Price: 83.00 INR
Availability: OutOfStock

₹83.00 (Inclusive of all taxes)

Out of Stock

The UMW DS18B20 is a high-precision, 1-Wire digital temperature sensor in a TO-92 package, offering a wide measurement range from -55°C to +125°C with ±0.4°C accuracy. It is directly compatible with 3.0V to 5.5V microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32, providing a simple single-bus interface for system integration.

Features

High-Accuracy Digital Output: ±0.4°C accuracy over the full -55°C to +125°C range.
Wide Operating Voltage: Supports 3.0V to 5.5V DC, compatible with 3.3V and 5V logic systems.
1-Wire Digital Interface: Simplifies wiring and communication with a single data line.
TO-92 Package: Standard through-hole form factor for easy prototyping and installation.
Robust Operating Range: Suitable for harsh environments from -55°C to +125°C.

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Description

The DS18B20 from UMW (Youtai Semiconductor) is a digitally interfaced temperature sensor that converts thermal measurements directly into a 9 to 12-bit digital readout. Its 1-Wire communication protocol allows multiple sensors to share a single microcontroller pin, making it ideal for multi-point temperature monitoring systems. The sensor’s internal ADC and signal conditioning provide stable, noise-immune readings.

Housed in a robust TO-92 package, this sensor is designed for reliable long-term operation across industrial, automotive, and consumer electronics applications. Its low power consumption and programmable resolution enable optimized performance for battery-powered or energy-sensitive designs, providing precise thermal management and environmental monitoring.

Key Features

Precision Digital Sensing: Delivers calibrated digital temperature readings with ±0.4°C accuracy, eliminating analog signal conditioning needs.
Single-Bus Communication: Utilizes the 1-Wire protocol for minimal wiring, enabling daisy-chaining of multiple sensors on one data line.
Wide Supply Voltage Range: Operates from 3.0V to 5.5V DC, ensuring compatibility with a broad spectrum of 3.3V and 5V microcontroller platforms.
Programmable Resolution: User-configurable measurement resolution from 9 to 12 bits for a balance between conversion speed and precision.
Parasitic Power Mode: Can be powered directly from the data line in "parasite power" mode, simplifying two-wire installations.
Durable TO-92 Housing: Standard transistor-style package provides mechanical protection and ease of soldering for through-hole PCB mounting.

Applications

Industrial process control and equipment temperature monitoring.
HVAC system thermostats and duct temperature sensing.
Automotive engine management and cabin climate control systems.
Precision environmental monitoring in weather stations and data loggers.
Consumer appliance temperature regulation (e.g., refrigerators, coffee makers).

Technical Specifications

Manufacturer / Brand	UMW (Youtai Semiconductor Co., Ltd.)
Manufacturer Part Number (MPN)	DS18B20
Measurement Range	-55°C to +125°C
Accuracy	±0.4°C
Supply Voltage	3.0V to 5.5V DC
Output Interface	1-Wire Digital
Package / Form Factor	TO-92 (3-Pin)
Resolution	User-Selectable (9 to 12 bits)
Operating Temperature	-55°C to +125°C
Compliance	ROHS

Frequently Asked Questions

What is the operating voltage range for the DS18B20 sensor?

The DS18B20 operates from 3.0V to 5.5V DC, making it directly compatible with both 3.3V logic systems (like Raspberry Pi or ESP32) and standard 5V Arduino boards without requiring a logic level shifter.

How do I connect and communicate with the DS18B20 using a microcontroller?

The DS18B20 uses a 1-Wire digital interface. Connect the sensor's VDD pin to 3-5.5V, GND to ground, and the DQ (data) pin to a digital I/O pin on your microcontroller. Use a 4.7kΩ pull-up resistor between the DQ pin and VDD. Libraries like OneWire and DallasTemperature are available for Arduino and other platforms to simplify communication.

Can multiple DS18B20 sensors be used on a single microcontroller pin?

Yes, the 1-Wire protocol supports multiple devices on a single data bus. Each DS18B20 has a unique 64-bit serial code, allowing a microcontroller to address and read temperature data from each sensor individually when they are connected in parallel to the same data line.

What is the accuracy and temperature range of this sensor?

This UMW DS18B20 sensor provides an accuracy of ±0.4°C over its entire measurement range of -55°C to +125°C. This high precision and wide range make it suitable for demanding industrial, automotive, and environmental monitoring applications.

Does the sensor require calibration?

No, the DS18B20 is a factory-calibrated digital sensor. The temperature conversion and digital output are handled internally, providing calibrated readings without requiring user calibration. Its accuracy is specified as ±0.4°C directly from the manufacturer.