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MCP121T-300E/TT The Microchip Technology MCP121T-300E/TT is a voltage supervisor IC with a 2.93V threshold. It features an active-low, open-drain output and a reset timeout of 80ms.
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MCP121T-300E/TT

Available from 4 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP121T-300E/TT is a voltage supervisor IC with a 2.93V threshold. It features an active-low, open-drain output and a reset timeout of 80ms.
✓ Total Stock: 19,023 pcs
$ Price Range: $0.75

MCP121T-300E/TT Available from 4 distributors

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✓ Non-Authorised
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Risen Electronics ✓
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10,000 pcs
On Request
10000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Xingangxin ✓
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6,413 pcs
On Request
6413 pcs On Request 1 On Request On Request On Request On Request On Request
Hybrid Electronics ✓
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1,910 pcs
On Request
1910 pcs On Request 1 On Request On Request 1102 On Request On Request
Seba Components ✓
Non-Authorised Inventory information
700 pcs
On Request
700 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-300E/TT 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
SVHC Present
Supplier Device Package
Supply Current
Type
Voltage
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MCP121T-300E/TT Description

Short technical summary and product information.

The MCP121T-300E/TT from Microchip Technology is a voltage supervisor designed for critical microcontroller power-monitoring applications. It ensures a microcontroller remains in reset until the system voltage stabilizes at a proper operating level.

 

This device features a precise 2.93V voltage threshold and an active-low, open-drain output. It includes a reset delay timer with a minimum timeout of 80ms, providing reliable system startup.

 

The MCP121T-300E/TT is available in a compact SOT-23-3 surface-mount package, making it suitable for space-constrained designs. Its operating temperature range is -40°C to 125°C.

 

Key specifications include a low supply current of 1.75 µA (steady-state maximum) and monitoring of a single voltage channel. This makes it ideal for battery-powered equipment and other portable devices requiring robust power supervision.

MCP121T-300E/TT Quick Information

Product Type: Voltage Supervisor IC
Canonical Name: MCP121T-300E/TT Voltage Supervisor IC
Subcategory: Power Management ICs

MCP121T-300E/TT Compliance

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

MCP121T-300E/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-300E/TT Features

  • Monitors a single voltage channel.
  • Features a 2.93V voltage threshold.
  • Active-low, open-drain output.
  • Includes an 80ms minimum reset timeout.
  • Compact SOT-23-3 surface-mount package.

MCP121T-300E/TT Applications

  • Ideal for power-loss event resets.
  • Suitable for microcontroller power monitoring.
  • Used in portable battery-powered equipment.
  • Applicable in intelligent instrument designs.
  • Designed for computer system power supervision.

MCP121T-300E/TT FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage threshold of the MCP121T-300E/TT?

The nominal voltage threshold is 2.93V.

What is the supply current of the MCP121T-300E/TT?

The maximum steady-state supply current is 1.75 µA.

What is the operating temperature range of the MCP121T-300E/TT?

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

What package is the MCP121T-300E/TT available in?

The MCP121T-300E/TT is available in a SOT-23-3 surface-mount package.

What is the reset delay of the MCP121T-300E/TT?

The typical reset delay is 120 ms, with a minimum reset timeout of 80 ms.

What type of output does the MCP121T-300E/TT have?

The output is active-low, open-drain.

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