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MCP121-270E/TO The Microchip Technology MCP121-270E/TO is a voltage supervisor designed for critical microcontroller power monitoring. It features a 2.63V reset voltage and an active-low, open-drain output.
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MCP121-270E/TO

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP121-270E/TO is a voltage supervisor designed for critical microcontroller power monitoring. It features a 2.63V reset voltage and an active-low, open-drain output.
✓ Total Stock: 26,530 pcs
$ Price Range: $0.75

MCP121-270E/TO Available from 1 distributor

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✓ Non-Authorised
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Smaxon Electronics ✓
Non-Authorised Inventory information
26,530 pcs
On Request
26530 pcs On Request 1 On Request On Request 2020+ On Request On Request
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MCP121-270E/TO Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
Supplier Device Package
Supply Current
Supply Voltage
Type
Voltage
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MCP121-270E/TO Description

Short technical summary and product information.

The MCP121-270E/TO from Microchip Technology is a voltage supervisor IC designed to ensure reliable system operation by keeping microcontrollers in reset until the system voltage stabilizes. This device monitors a single voltage level and provides an active-low, open-drain reset output.

 

Key electrical specifications include a precise 2.63V reset voltage and a typical reset delay time of 120 ms. It operates with a supply voltage up to 7.0V and consumes a very low steady-state supply current of 1.75 µA maximum. The operating temperature range is extended, from -40°C to +125°C.

 

Packaged in a standard TO-92-3 (TO-226-3) through-hole package, the MCP121-270E/TO is suitable for applications requiring robust power monitoring. Its features make it ideal for use in computers, intelligent instruments, and portable battery-powered equipment where maintaining stable power conditions is critical for performance and data integrity.

MCP121-270E/TO Quick Information

Product Type: Voltage Supervisor
Series: MCP121
Canonical Name: MCP121-270E/TO Voltage Supervisor
Subcategory: Power Management ICs (PMICs)

MCP121-270E/TO Compliance

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

MCP121-270E/TO Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

MCP121-270E/TO Features

  • Monitors a single voltage level.
  • Provides active-low, open-drain reset.
  • Features 2.63V reset voltage.
  • Operates from -40°C to 125°C.
  • Available in TO-92 package.

MCP121-270E/TO Applications

  • Used in microcontroller power supply monitoring.
  • Ideal for battery-powered systems.
  • Suitable for industrial temperature applications.
  • Provides reliable reset to microprocessors.
  • Deployed in portable electronics.

MCP121-270E/TO FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum supply voltage for the MCP121-270E/TO?

7.0V.

What package does the MCP121-270E/TO come in?

TO-92-3 through-hole package.

What is the operating temperature range?

-40°C to 125°C.

What is the reset threshold voltage?

2.63V.

What is the typical supply current?

1.75µA.

What is the reset delay time?

120ms typical.

What type of output does it have?

Active-low open-drain or open-collector.

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