DS18B20 The DS18B20 is a digital temperature sensor from UMW (Youtai Semiconductor) featuring a 1-Wire interface and a wide operating temperature range. It offers user-selectable resolution from 9 to 12 bits.
Mfr Part #:

DS18B20

Available from 1 distributors
Mfr Name: UMW (Youtai Semiconductor)
UMW (Youtai Semiconductor)
The DS18B20 is a digital temperature sensor from UMW (Youtai Semiconductor) featuring a 1-Wire interface and a wide operating temperature range. It offers user-selectable resolution from 9 to 12 bits.
✓ Total Stock: 6,800 pcs
$ Price Range: $1.50

DS18B20 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
6,800 pcs
6800 pcs On Request 1 On Request On Request On Request On Request On Request

DS18B20 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Features
Mounting Type
Operating Temperature
Output Type
Resolution
Sensing Temperature
Sensor Type
Supplier Device Package
Tape & Reel
Test Condition
Voltage

DS18B20 Description

Short technical summary and product information.

The DS18B20 is a digital thermometer IC that provides 9-bit to 12-bit Celsius temperature measurements. It communicates over a 1-Wire bus, requiring only a single data line for communication with a microprocessor. This simplifies distributed temperature sensing applications.

 

The device operates within a temperature range of -55°C to +125°C and offers an accuracy of ±0.4°C over the range of -10°C to +70°C. The resolution is user-selectable from 9 to 12 bits, and it can be powered directly from the data line (parasite power mode), eliminating the need for an external power supply. The operating voltage range is 2.5V to 5.5V.

 

Each DS18B20 has a unique 64-bit serial code, allowing multiple devices to function on the same 1-Wire bus. This feature is beneficial for applications such as HVAC environmental controls, temperature monitoring systems, and process control systems. The DS18B20 includes an alarm function with nonvolatile user-programmable upper and lower trigger points.

 

Available in a TO-92 package, the DS18B20 is suitable for through-hole mounting. Its robust design and versatile features make it ideal for various thermally sensitive applications.

DS18B20 Quick Information

Product Type: Digital Temperature Sensor
Canonical Name: DS18B20 Digital Thermometer
Subcategory: Digital Temperature Sensor

DS18B20 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS18B20 Estimated Pricing

Qty Low High
1+ $1.50 $1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

DS18B20 Features

  • 1-Wire interface requires only one port pin.
  • Measures temperatures from -55°C to +125°C.
  • User-selectable resolution from 9 to 12 bits.
  • Can be powered directly from the data line.
  • Available in TO-92 package for through-hole mounting.

DS18B20 Applications

  • Ideal for HVAC environmental controls.
  • Suitable for temperature monitoring systems.
  • Used in equipment and machinery monitoring.
  • Applicable for process monitoring and control.

DS18B20 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the DS18B20?

The DS18B20 operates from -55°C to +125°C.

What is the accuracy of the DS18B20 temperature sensor?

The DS18B20 has an accuracy of ±0.4°C over the range of -10°C to +70°C.

What is the resolution of the DS18B20?

The resolution of the DS18B20 is user-selectable from 9 to 12 bits.

What is the supply voltage range for the DS18B20?

The DS18B20 operates with a supply voltage range of 2.5V to 5.5V.

What type of interface does the DS18B20 use?

The DS18B20 uses a 1-Wire interface.

What package type is the DS18B20 available in?

The DS18B20 is available in a TO-92 package.

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