MCP9805T-BE/ST The Microchip Technology MCP9805T-BE/ST is a digital temperature sensor designed for precise thermal monitoring. It operates from 3.0V to 3.6V and features an I2C/SMBus interface.
Mfr Part #:

MCP9805T-BE/ST

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP9805T-BE/ST is a digital temperature sensor designed for precise thermal monitoring. It operates from 3.0V to 3.6V and features an I2C/SMBus interface.
Total Stock: 30,795 pcs
$ Price Range: $2.06

MCP9805T-BE/ST Available from 1 distributor

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30,795 pcs
30795 pcs On Request 1 On Request On Request 2020+ On Request On Request

MCP9805T-BE/ST Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Function
Mounting Type
Operating Temperature
Output Alarm
Output Fan
Output Type
Sensing Temperature
Sensor Type
Supplier Device Package
Supplier Package
Temperature Range
Topology
Voltage

MCP9805T-BE/ST Description

Short technical summary and product information.

The Microchip Technology MCP9805T-BE/ST is a digital temperature sensor that converts temperature readings into a digital word. It operates within a voltage range of 3.0V to 3.6V and communicates via an industry-standard SMBus and I2C compatible 2-wire interface.

 

This sensor offers an accuracy of ±3°C maximum across its operating temperature range of -40°C to +125°C. It is designed to meet JEDEC Standard JC42.4 for Mobile Platform Memory Module Thermal Sensors. The device includes user-programmable registers for flexibility, allowing settings such as shutdown or low-power modes and the specification of temperature event and critical output boundaries.

 

The MCP9805T-BE/ST is available in an 8-TSSOP package, suitable for surface mounting. Its typical applications include dual in-line memory modules (DIMMs), personal computers, servers, and hard disk drives, making it a versatile choice for general-purpose temperature sensing.

 

Key features include a temperature-to-digital converter, programmable temperature monitor boundaries, and a critical temperature output. The typical operating current is 200 µA, with a shutdown current of 0.1 µA.

MCP9805T-BE/ST Quick Information

Product Type: Digital Temperature Sensor
Canonical Name: MCP9805T-BE/ST Digital Temperature Sensor
Subcategory: Digital Temperature Sensor

MCP9805T-BE/ST Compliance

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

MCP9805T-BE/ST Estimated Pricing

Qty Low High
1+ $2.06 $2.06

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

MCP9805T-BE/ST Features

  • Digital temperature sensor with I2C/SMBus interface.
  • Operates from 3.0V to 3.6V supply voltage.
  • Sensing temperature range of -40°C to 125°C.
  • Maximum accuracy of ±3°C.
  • Available in 8-TSSOP surface mount package.

MCP9805T-BE/ST Applications

  • Ideal for memory module thermal sensing.
  • Used in PCs and servers.
  • Suitable for hard disk drives.
  • General purpose temperature monitoring.

MCP9805T-BE/ST FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

3.0V to 3.6V.

What package is the MCP9805T-BE/ST available in?

8-TSSOP (0.173", 4.40mm width) and also 2x3 DFN-8.

What is the operating temperature range?

-40°C to +125°C.

What is the accuracy of the temperature sensor?

±3°C maximum from -20°C to +125°C, with better accuracy in narrower ranges: ±1°C from +75°C to +95°C, ±2°C from +40°C to +125°C.

What interface does the sensor use?

I2C/SMBus.

Does the sensor have a fan output?

Yes, it has a fan output.

What is the typical operating current?

200 µA typical.

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