DS1821 Overview

In order to ensure safety, these analog sensors are packaged in the Tray. It is important to ensure the safety of the analog sensors by packaging them in TO-226-3, TO-92-3 Long Body packages. It is necessary to have 3 pins for this sensor to function properly. A total of 3 terminations are present in this electronic component. It is possible that the current supplied by the analog sensors could be 1mA when it operates. Ideally, this sensor should provide a voltage of 5.5V in a DC circuit. In the DC circuit, however, this magnetic switch can provide a minimum voltage of 2.7V. In theory, this sensor can be powered by 500μA current. A sensor's current output should generally be 4mA for optimum performance.

DS1821 Features

Moisture Sensitivity Level (MSL): 1 (Unlimited)
Tray Package
Operating Temperature: -55°C~125°C
Supply Voltage: 2.7V~5.5V
3 Pins
Local Sensing Temperature: -55°C~125°C
3 Terminations
Highest (Lowest) Accuracy: ±1°C
Sensor Type: Digital, Local

DS1821 Applications

There are a lot of Maxim Integrated DS1821 Analog & Digital Sensors applications.

• Office Equipment
• Mobile Phones
• Automatic doors/elevators
• Any Thermally-Sensitive System
• Power Supply Thermal Shutdown
• SMPS
• System Thermal Management
• Digital Cameras
• Chargers
• Engineering