MCP131T-450E/TT Microchip Integrated Circuit (Other) In Stock

Name: MCP131T-450E/TT
Brand: Microchip
SKU: MCP131T-450E/TT
Availability: InStock

The MCP131T-450E/TT is a single-channel voltage supervisor and microcontroller reset IC from Microchip, monitoring a fixed threshold window of 4.271 V to 4.49 V to assert a reset signal during undervoltage conditions. Packaged in a 3-pin SOT-23B, it is RoHS-compliant and suited for power supply monitoring in 5 V embedded systems.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP131T-450E/TTOther

Quick Facts

Manufacturer: Microchip
Package: Other
Pin Count: 3
Lifecycle: ACTIVE
Datasheet: MCP131T-450E/TT Datasheet PDF
Category: Integrated Circuit
Price: From $0.0716(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP131T-450E/TT?

Fixed threshold voltage supervisor: 4.271 V to 4.49 V
Single-channel reset IC for 5 V system monitoring
3-pin SOT-23B package for minimal board space
No manual reset, no watchdog: simple glue-free reset generation
RoHS-compliant, Pb-free (JESD-609 e3)
Reliable undervoltage detection without external components

What is MCP131T-450E/TT used for?

The MCP131T-450E/TT is used as a power supply monitor and microcontroller reset generator in 5 V embedded systems, industrial controllers, and consumer electronics where a hard reset must be asserted whenever the supply drops below approximately 4.27 V. Its simple 3-pin package and fixed threshold eliminate the need for resistor dividers or external comparators, reducing BOM complexity in space-constrained reset circuits.

What are the specifications of MCP131T-450E/TT?

Pbfree Code	Yes
Manufacturer Package Code	SOT-23-3
Factory Lead Time	19Weeks
YTEOL	9
Additional Feature	BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N
Adjustable Threshold	NO
Analog IC - Other Type	VOLTAGE SUPERVISOR/RESET IC
JESD-30 Code	R-PDSO-G3
JESD-609 Code	e3
Number of Channels	1
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TO-236
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Screening Level	TS 16949
Supply Current-Max (Isup)	0.09mA
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	1V
Supply Voltage-Nom (Vsup)	3V
Surface Mount	YES
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.95mm
Terminal Position	DUAL
Threshold Voltage-Nom	+4.38V
Time@Peak Reflow Temperature-Max (s)	40
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Thailand

Where can I find the MCP131T-450E/TT datasheet?

MCP131T-450E/TT Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP131T-450E/TT?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

At what voltage does the MCP131T-450E/TT assert a reset, and is that threshold adjustable?

The MCP131T-450E/TT has a fixed trip threshold between 4.271 V and 4.49 V and is not adjustable. It asserts a reset output whenever the monitored supply drops below this range, making it suitable for protecting 5 V microcontrollers from brown-out conditions without any external resistors or configuration.

How does using a dedicated voltage supervisor like MCP131T-450E/TT compare to relying on an MCU's internal BOR for reset generation?

A dedicated supervisor such as MCP131T-450E/TT monitors the supply rail independently, asserting reset before the MCU's own power fails. This is more reliable than an internal brown-out reset (BOR), which may not trigger until the supply has already dropped below 3 V, potentially causing firmware corruption in 5 V systems with supply rails that droop slowly.

What is the lead time risk for MCP131T-450E/TT, and how should procurement manage a 19-week supply gap?

The MCP131T-450E/TT has a 19-week factory lead time, roughly 5 months. Procurement teams should place orders well in advance of production ramp and evaluate alternative single-channel voltage supervisors in SOT-23-3 with similar 4.4 V trip thresholds as qualified second sources to avoid production stoppages during supply constraints.

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MCP131T-450E/TT Microchip Integrated Circuit (Other) In Stock

What are the key features of MCP131T-450E/TT?

What is MCP131T-450E/TT used for?

What are the specifications of MCP131T-450E/TT?

Compliance & Regulatory

Where can I find the MCP131T-450E/TT datasheet?

What are equivalent replacements for MCP131T-450E/TT?

Frequently Asked Questions

At what voltage does the MCP131T-450E/TT assert a reset, and is that threshold adjustable?

How does using a dedicated voltage supervisor like MCP131T-450E/TT compare to relying on an MCU's internal BOR for reset generation?

What is the lead time risk for MCP131T-450E/TT, and how should procurement manage a 19-week supply gap?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Microchip

More from Microchip

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