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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 (JPY) 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 MCP111T-475E/TT Microchip Technology 1: ¥74.7 3,271In Stock	Mfr. Part # MCP111T-475E/TT Mouser Part # 579-MCP111T-475E/TT	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,271In Stock	Cut Tape ¥74.7 ¥61.5 Reel ¥56.5 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
Supervisory Circuits 1uA Sup P-P Act Low MCP112-195I/TO Microchip Technology 1: ¥106.3 819In Stock	Mfr. Part # MCP112-195I/TO Mouser Part # 579-MCP112-195I/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	819In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	1.9 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 85 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112-240E/TO Microchip Technology 1: ¥106.3 1,811In Stock	Mfr. Part # MCP112-240E/TO Mouser Part # 579-MCP112-240E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,811In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	2.32 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112-270E/TO Microchip Technology 1: ¥106.3 1,543In Stock	Mfr. Part # MCP112-270E/TO Mouser Part # 579-MCP112-270E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,543In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	2.63 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112-300E/TO Microchip Technology 1: ¥106.3 1,608In Stock	Mfr. Part # MCP112-300E/TO Mouser Part # 579-MCP112-300E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,608In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	2.93 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112-315E/TO Microchip Technology 1: ¥106.3 961In Stock	Mfr. Part # MCP112-315E/TO Mouser Part # 579-MCP112-315E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	961In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	3.08 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits Push-Pull Low MCP112T-195I/TT Microchip Technology 1: ¥99.7 1,273In Stock	Mfr. Part # MCP112T-195I/TT Mouser Part # 579-MCP112T-195I/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,273In Stock	Cut Tape ¥99.7 ¥83.1 Reel ¥76.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	1.9 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 85 C	MCP112	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits 1uA Sup Push-Pull Act Low MCP112T-270E/MB Microchip Technology 1: ¥99.7 1,998In Stock	Mfr. Part # MCP112T-270E/MB Mouser Part # 579-MCP112T-270E/MB	Microchip Technology	Supervisory Circuits 1uA Sup Push-Pull Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,998In Stock	Cut Tape ¥99.7 ¥83.1 Reel ¥76.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Voltage Detector	SMD/SMT	SOT-89-3	2.63 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain Low MCP121-300E/TO Microchip Technology 1: ¥88 807In Stock	Mfr. Part # MCP121-300E/TO Mouser Part # 579-MCP121-300E/TO	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	807In Stock	¥88 ¥73.1 ¥66.4	Min.: 1 Mult.: 1	Voltage Supervisory	Through Hole	TO-92-3	2.93 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	Bulk
Supervisory Circuits Open Drain Low MCP121-450E/TO Microchip Technology 1: ¥88 1,480In Stock	Mfr. Part # MCP121-450E/TO Mouser Part # 579-MCP121-450E/TO	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,480In Stock	¥88 ¥73.1 ¥66.4	Min.: 1 Mult.: 1	Voltage Supervisory	Through Hole	TO-92-3	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	MCP121	AEC-Q100	Bulk
Supervisory Circuits Open Drain Low MCP121-475E/TO Microchip Technology 1: ¥88 257In Stock	Mfr. Part # MCP121-475E/TO Mouser Part # 579-MCP121-475E/TO	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	257In Stock	¥88 ¥73.1 ¥66.4	Min.: 1 Mult.: 1	Voltage Supervisory	Through Hole	TO-92-3	4.63 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	Bulk
Supervisory Circuits Open Drain Low MCP121T-195I/TT Microchip Technology 1: ¥88 3,098In Stock	Mfr. Part # MCP121T-195I/TT Mouser Part # 579-MCP121T-195I/TT	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,098In Stock	Cut Tape ¥88 ¥73.1 Reel ¥66.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	1.9 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 85 C	MCP121	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain Low MCP121T-270E/TT Microchip Technology 1: ¥88 2,795In Stock 3,000Expected 11/18/2026	Mfr. Part # MCP121T-270E/TT Mouser Part # 579-MCP121T-270E/TT	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	2,795In Stock 3,000Expected 11/18/2026	Cut Tape ¥88 ¥73.1 Reel ¥66.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	2.63 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 Open Drain Low MCP121T-475E/LB Microchip Technology 1: ¥88 2,161In Stock	Mfr. Part # MCP121T-475E/LB Mouser Part # 579-MCP121T-475E/LB	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	2,161In Stock	Cut Tape ¥88 ¥73.1 Reel ¥66.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC70-3	4.63 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 Open Drain Low MCP121T-475E/TT Microchip Technology 1: ¥88 3,724In Stock	Mfr. Part # MCP121T-475E/TT Mouser Part # 579-MCP121T-475E/TT	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,724In Stock	Cut Tape ¥88 ¥73.1 Reel ¥66.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	4.63 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 ACTIVE LO OPEN DRAIN W/INT 4.7K PULL UP MCP1316MT-29KE/OT Microchip Technology 1: ¥98 2,843In Stock 6,000Expected 1/25/2027	Mfr. Part # MCP1316MT-29KE/OT Mouser Part # 579-MCP1316MT29KE/OT	Microchip Technology	Supervisory Circuits ACTIVE LO OPEN DRAIN W/INT 4.7K PULL UP Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	2,843In Stock 6,000Expected 1/25/2027	Cut Tape ¥98 ¥81.4 Reel ¥74.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-5	2.9 V	1 Input	Active Low, Open Drain	Manual Reset	Watchdog	No Backup	200 ms	5.5 V	- 40 C	+ 125 C	MCP131	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain Low MCP131T-195I/TT Microchip Technology 1: ¥119.6 3,883In Stock	Mfr. Part # MCP131T-195I/TT Mouser Part # 579-MCP131T-195I/TT	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,883In Stock	Cut Tape ¥119.6 ¥99.7 Reel ¥89.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	1.9 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	120 ms	5.5 V	- 40 C	+ 85 C	MCP131	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain Low MCP131T-270E/LB Microchip Technology 1: ¥119.6 2,943In Stock	Mfr. Part # MCP131T-270E/LB Mouser Part # 579-MCP131T-270E/LB	Microchip Technology	Supervisory Circuits Open Drain Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	2,943In Stock	Cut Tape ¥119.6 ¥99.7 Reel ¥89.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC70-3	2.63 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 Push-Pull Low MCP103T-450E/LB Microchip Technology 1: ¥119.6 1,088In Stock	Mfr. Part # MCP103T-450E/LB Mouser Part # 579-MCP103T-450E/LB	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,088In Stock	Cut Tape ¥119.6 ¥99.7 Reel ¥89.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SC70-3	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	MCP103	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Push-Pull Low MCP103T-450E/TT Microchip Technology 1: ¥119.6 1,830In Stock	Mfr. Part # MCP103T-450E/TT Mouser Part # 579-MCP103T-450E/TT	Microchip Technology	Supervisory Circuits Push-Pull Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	1,830In Stock	Cut Tape ¥119.6 ¥99.7 Reel ¥89.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Supervisory	SMD/SMT	SOT-23-3	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	MCP103	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits Open Drain MCP111T-290E/LB Microchip Technology 1: ¥74.7 5,498In Stock	Mfr. Part # MCP111T-290E/LB Mouser Part # 579-MCP111T-290E/LB	Microchip Technology	Supervisory Circuits Open Drain Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	5,498In Stock	Cut Tape ¥74.7 ¥61.5 Reel ¥56.5 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 1uA Sup P-P Act Low MCP112-290E/TO Microchip Technology 1: ¥106.3 219In Stock	Mfr. Part # MCP112-290E/TO Mouser Part # 579-MCP112-290E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	219In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	2.9 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112-450E/TO Microchip Technology 1: ¥106.3 496In Stock	Mfr. Part # MCP112-450E/TO Mouser Part # 579-MCP112-450E/TO	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	496In Stock	¥106.3 ¥88 ¥81.4	Min.: 1 Mult.: 1	Voltage Detector	Through Hole	TO-92-3	4.38 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Bulk
Supervisory Circuits 1uA Sup P-P Act Low MCP112T-315E/TT Microchip Technology 1: ¥99.7 3,973In Stock	Mfr. Part # MCP112T-315E/TT Mouser Part # 579-MCP112T-315E/TT	Microchip Technology	Supervisory Circuits 1uA Sup P-P Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	3,973In Stock	Cut Tape ¥99.7 ¥83.1 Reel ¥76.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	3.08 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Reel, Cut Tape, MouseReel
Supervisory Circuits 1uA Sup Push-Pull Act Low MCP112T-450E/MB Microchip Technology 1: ¥99.7 332In Stock	Mfr. Part # MCP112T-450E/MB Mouser Part # 579-MCP112T-450E/MB	Microchip Technology	Supervisory Circuits 1uA Sup Push-Pull Act Low Learn More about Microchip Technology microchip mcp11x voltage detectors	Datasheet	332In Stock	Cut Tape ¥99.7 ¥83.1 Reel ¥76.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Voltage Detector	SMD/SMT	SOT-89-3	4.38 V	1 Input	Active Low, Push-Pull	No Manual Reset	No Watchdog	No Backup		5.5 V	- 40 C	+ 125 C	MCP112	AEC-Q100	Reel, Cut Tape, MouseReel

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MCP11x Micropower Voltage Detectors

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