UMW DS18B20U MSOP-8 Digital Temperature Sensor -55°C to +125°C ±0.4°C, Single-Bus

Name: UMW DS18B20U MSOP-8 Digital Temperature Sensor -55°C to +125°C ±0.4°C, Single-Bus
Brand: UMW
SKU: SENS-3902
Price: 103.00 INR
Availability: OutOfStock

₹103.00 (Inclusive of all taxes)

Out of Stock

The UMW DS18B20U is a high-precision digital temperature sensor in an MSOP-8 package, offering a wide measurement range from -55°C to +125°C with ±0.4°C accuracy. It communicates via a 1-Wire single-bus interface, making it ideal for space-constrained and multi-point sensing applications with microcontrollers like Arduino, ESP32, and Raspberry Pi.

Features

High-precision digital temperature sensor with ±0.4°C accuracy.
Wide operating range from -55°C to +125°C.
Single-bus (1-Wire) digital interface simplifies wiring and system design.
Compact MSOP-8 surface-mount package for space-constrained PCBs.
Low power consumption and 2.5V to 5.5V wide supply voltage range.

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Description

The DS18B20U from UMW (Youtai Semiconductor) is a fully-integrated digital temperature sensor. It utilizes a proprietary thermal sensing element and a high-resolution analog-to-digital converter to deliver calibrated digital output directly over the 1-Wire protocol. This eliminates the need for external signal conditioning components.

Its MSOP-8 package provides a robust and miniaturized footprint suitable for automated PCB assembly. The sensor’s wide supply voltage range from 2.5V to 5.5V ensures compatibility with both 3.3V and 5V logic systems, while its low power draw makes it suitable for battery-powered monitoring nodes in distributed sensor networks.

Key Features

High-Accuracy Digital Output: Provides 9 to 12-bit user-configurable resolution for precise temperature readings up to ±0.4°C.
1-Wire Bus Interface: Enables multi-drop capability, allowing many sensors to communicate on a single microcontroller pin with unique 64-bit serial codes.
Wide Operating Voltage & Range: Functions from 2.5V to 5.5V and measures temperatures from -55°C to +125°C for extreme environment applications.
Compact MSOP-8 Package: Surface-mount design minimizes board space, ideal for modern, dense electronic assemblies.
Low Power Consumption: Optimized for energy-efficient operation in portable and remote monitoring systems.
Factory Calibrated: Each sensor is laser-trimmed, ensuring accuracy without requiring user calibration.

Applications

Multi-point temperature monitoring in HVAC and building automation systems.
Thermal management and protection in industrial control panels and power electronics.
Battery temperature sensing in portable medical devices and energy storage systems.
Environmental data logging for agricultural and scientific research equipment.
Thermal compensation and sensing in high-density consumer electronics and computing hardware.

Technical Specifications

Manufacturer / Brand	UMW (Youtai Semiconductor Co., Ltd.)
Manufacturer Part Number (MPN)	DS18B20U
Sensor Type	Digital Temperature Sensor
Measurement Range	-55°C to +125°C
Accuracy	±0.4°C
Output Interface	1-Wire (Single-Bus) Digital
Supply Voltage	2.5 V to 5.5 V DC
Package / Case	MSOP-8
Operating Temperature	-55°C to 125°C
Compliance	ROHS

Frequently Asked Questions

What is the communication protocol for the DS18B20U sensor?

The DS18B20U uses the 1-Wire (Single-Bus) digital communication protocol. This requires only a single data line (and ground) for bidirectional communication, simplifying wiring in multi-sensor networks. Each sensor has a unique 64-bit ROM code, allowing many devices to share the same bus.

What is the power supply range for this sensor?

The sensor operates from a wide voltage range of 2.5V to 5.5V DC. This makes it directly compatible with both 3.3V and 5V microcontroller systems like Arduino, ESP32, and Raspberry Pi without requiring a level shifter.

How accurate is the DS18B20U, and does it require calibration?

The DS18B20U has a typical accuracy of ±0.4°C within its primary range. It is factory calibrated and laser-trimmed, so no user calibration is required for most applications. The digital output minimizes noise and signal degradation over cable runs.

What is the physical package and how is it mounted?

This sensor comes in an MSOP-8 (Mini Small-Outline Package) surface-mount package. It is designed for reflow soldering onto a PCB. For prototyping, breakout adapter boards are available to convert the MSOP pins to standard 0.1" headers.