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MCP11x Micropower Voltage Detectors

Microchip Technology MCP1x Micropower Voltage Detectors are designed to keep a microcontroller at rest until the system voltage has reached and stabilized. This result in appropriate level for reliable system operation. The MCP1x micropower voltage detectors are available in MCP102, MCP103, MCP121, MCP131, MCP111, and MCP112 variants. These MCP1x detectors are available in 8 different trip voltages. The devices come in SC-70, SOT-23, TO-92, SOT-143, and SOIC packages in various pin configurations. Typical applications include critical μC and μP power-monitoring applications, computers, intelligent instruments, and portable battery-powered equipment.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Type	Mounting Style	Package/Case	Threshold Voltage	Number of Inputs Monitored	Output Type	Manual Reset	Watchdog Timers	Battery Backup Switching	Reset Delay Time	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
Supervisory Circuits Open Drain Low MCP131T-450E/TT Microchip Technology 1: $0.72 4,637In Stock	Mfr. Part No. MCP131T-450E/TT Mouser Part No 579-MCP131T-450E/TT	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	4,637In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	4.38 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP131	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-290E/LB Microchip Technology 1: $0.45 5,998In Stock	Mfr. Part No. MCP111T-290E/LB Mouser Part No 579-MCP111T-290E/LB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	5,998In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SC70-3	2.9 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-290E/TT Microchip Technology 1: $0.45 7,319In Stock	Mfr. Part No. MCP111T-290E/TT Mouser Part No 579-MCP111T-290E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	7,319In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.9 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain Low MCP121T-240E/LB Microchip Technology 1: $0.53 10,855In Stock	Mfr. Part No. MCP121T-240E/LB Mouser Part No 579-MCP121T-240E/LB	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	10,855In Stock	Cut Tape $0.53 $0.44 Reel $0.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC70-3	2.32 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP121	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP102-450E/TO Microchip Technology 1: $0.72 1,412In Stock	Mfr. Part No. MCP102-450E/TO Mouser Part No 579-MCP102-450E/TO	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,412In Stock	$0.72 $0.60 $0.54	Min.: 1 Mult.: 1	Voltage Supervisory	Through Hole	TO-92-3	4.38 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP102	AEC-Q100	Bulk
Supervisory Circuits Push-Pull Low MCP102T-195I/TT Microchip Technology 1: $0.72 3,014In Stock	Mfr. Part No. MCP102T-195I/TT Mouser Part No 579-MCP102T-195I/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,014In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	1.9 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 85 C	MCP102	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP102T-240E/TT Microchip Technology 1: $0.72 1,284In Stock	Mfr. Part No. MCP102T-240E/TT Mouser Part No 579-MCP102T-240E/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,284In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	2.32 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP102	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP102T-300E/LB Microchip Technology 1: $0.72 2,419In Stock	Mfr. Part No. MCP102T-300E/LB Mouser Part No 579-MCP102T-300E/LB	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	2,419In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC-70-3	2.93 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP102	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP102T-315E/TT Microchip Technology 1: $0.72 3,532In Stock	Mfr. Part No. MCP102T-315E/TT Mouser Part No 579-MCP102T-315E/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,532In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	3.08 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP102	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP103T-270E/LB Microchip Technology 1: $0.72 1,517In Stock	Mfr. Part No. MCP103T-270E/LB Mouser Part No 579-MCP103T-270E/LB	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,517In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC-70-3	2.63 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP103	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP103T-270E/TT Microchip Technology 1: $0.72 3,132In Stock	Mfr. Part No. MCP103T-270E/TT Mouser Part No 579-MCP103T-270E/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,132In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	2.63 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP103	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP103T-300E/TT Microchip Technology 1: $0.72 1,496In Stock	Mfr. Part No. MCP103T-300E/TT Mouser Part No 579-MCP103T-300E/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,496In Stock	Cut Tape $0.72 $0.60 Reel $0.54 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	2.93 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 125 C	MCP103	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111-240E/TO Microchip Technology 1: $0.45 1,784In Stock	Mfr. Part No. MCP111-240E/TO Mouser Part No 579-MCP111-240E/TO	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,784In Stock	$0.45 $0.37 $0.34	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	2.32 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Bulk
Supervisory Circuits Open Drain MCP111-450E/TO Microchip Technology 1: $0.45 947In Stock	Mfr. Part No. MCP111-450E/TO Mouser Part No 579-MCP111-450E/TO	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	947In Stock	$0.45 $0.37 $0.34	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	4.38 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Bulk
Supervisory Circuits Open Drain MCP111-475E/TO Microchip Technology 1: $0.45 1,545In Stock	Mfr. Part No. MCP111-475E/TO Mouser Part No 579-MCP111-475E/TO	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,545In Stock	$0.45 $0.37 $0.34	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	4.63 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Bulk
Supervisory Circuits Open Drain MCP111T-195I/TT Microchip Technology 1: $0.45 3,094In Stock	Mfr. Part No. MCP111T-195I/TT Mouser Part No 579-MCP111T-195I/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,094In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	1.9 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 85 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-270E/TT Microchip Technology 1: $0.45 5,242In Stock	Mfr. Part No. MCP111T-270E/TT Mouser Part No 579-MCP111T-270E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	5,242In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.63 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-300E/TT Microchip Technology 1: $0.45 4,027In Stock 6,000Expected 19/10/2026	Mfr. Part No. MCP111T-300E/TT Mouser Part No 579-MCP111T-300E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	4,027In Stock 6,000Expected 19/10/2026	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.93 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-315E/LB Microchip Technology 1: $0.45 4,648In Stock 6,000Expected 18/12/2026	Mfr. Part No. MCP111T-315E/LB Mouser Part No 579-MCP111T-315E/LB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	4,648In Stock 6,000Expected 18/12/2026	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SC70-3	3.08 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-315E/MB Microchip Technology 1: $0.45 900In Stock	Mfr. Part No. MCP111T-315E/MB Mouser Part No 579-MCP111T-315E/MB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	900In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Voltage Detector	SMD/SMT	SOT-89-3	3.08 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-315E/TT Microchip Technology 1: $0.45 3,298In Stock	Mfr. Part No. MCP111T-315E/TT Mouser Part No 579-MCP111T-315E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,298In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	3.08 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-450E/LB Microchip Technology 1: $0.45 1,961In Stock	Mfr. Part No. MCP111T-450E/LB Mouser Part No 579-MCP111T-450E/LB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,961In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SC70-3	4.38 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-450E/TT Microchip Technology 1: $0.45 3,197In Stock	Mfr. Part No. MCP111T-450E/TT Mouser Part No 579-MCP111T-450E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,197In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	4.38 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-475E/LB Microchip Technology 1: $0.45 4,854In Stock	Mfr. Part No. MCP111T-475E/LB Mouser Part No 579-MCP111T-475E/LB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	4,854In Stock	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SC-70-3	4.63 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-475E/TT Microchip Technology 1: $0.45 571In Stock 3,000On Order	Mfr. Part No. MCP111T-475E/TT Mouser Part No 579-MCP111T-475E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	571In Stock 3,000On Order	Cut Tape $0.45 $0.37 Reel $0.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	4.63 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP111	AEC-Q100	Reel, Cut Tape, MouseReel

MCP11x Micropower Voltage Detectors

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