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MCP121T-240E/TT The Microchip Technology MCP121T-240E/TT is a voltage supervisor IC designed for critical microcontroller power monitoring. It features a 2.32V monitoring threshold and an active-low reset output.
Mfr Part #:

MCP121T-240E/TT

Available from 4 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP121T-240E/TT is a voltage supervisor IC designed for critical microcontroller power monitoring. It features a 2.32V monitoring threshold and an active-low reset output.
✓ Total Stock: 11,659 pcs
$ Price Range: $0.75

MCP121T-240E/TT Available from 4 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Hybrid Electronics ✓
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6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request 952 On Request On Request
Risen Electronics ✓
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3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Smaxon Electronics ✓
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1,759 pcs
On Request
1759 pcs On Request 1 On Request On Request 1125+ On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
900 pcs
On Request
900 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MCP121T-240E/TT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Spacing
Lead Style
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
SVHC Present
Supplier Device Package
Supplier Package
Supply Current
Tape & Reel
Type
Voltage
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MCP121T-240E/TT Description

Short technical summary and product information.

The MCP121T-240E/TT from Microchip Technology is a voltage supervisor designed to ensure reliable system operation by keeping microcontrollers in reset until the system voltage stabilizes. This device monitors a single voltage level, specifically 2.32V, and provides an active-low reset output.

 

Key features include an ultra-low supply current of 1.75 µA in steady-state, a typical reset delay of 120 ms, and an open-drain output type. The operating temperature range is -40°C to 125°C.

 

This supervisor is available in a compact SOT-23-3 surface-mount package, making it suitable for space-constrained applications. It is designed for critical microcontroller and microprocessor power-monitoring applications, including computers, intelligent instruments, and portable battery-powered equipment.

MCP121T-240E/TT Quick Information

Product Type: Voltage Supervisor
Series: MCP121
Canonical Name: MCP121T-240E/TT Voltage Supervisor
Subcategory: Supervisors

MCP121T-240E/TT Compliance

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

MCP121T-240E/TT Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

MCP121T-240E/TT Features

  • Monitors a single 2.32V voltage level.
  • Provides active-low reset output.
  • Features a 120 ms typical reset delay.
  • Ultra-low 1.75 µA steady-state supply current.
  • Available in SOT-23-3 package.

MCP121T-240E/TT Applications

  • Critical microcontroller power monitoring.
  • Ensures stable system voltage operation.
  • Used in portable battery-powered devices.
  • Suitable for intelligent instrument applications.
  • Applicable in computer systems.

MCP121T-240E/TT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the threshold voltage of the MCP121T-240E/TT?

The threshold voltage is 2.32V.

What package is the MCP121T-240E/TT available in?

It is available in a SOT-23-3 surface mount package.

What is the operating temperature range of the MCP121T-240E/TT?

The operating temperature range is -40°C to 125°C.

What is the supply current of the MCP121T-240E/TT?

The maximum supply current is 1.75 µA in steady state.

What is the reset delay time of the MCP121T-240E/TT?

The typical reset delay is 120 ms.

What is the reset timeout period?

The minimum reset timeout is 80 ms.

What is the output type of the MCP121T-240E/TT?

The output is open drain or open collector, active low.

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