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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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
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Package / Case
Threshold Voltage
Number of Inputs Monitored
Output Type
Manual Reset
Watchdog Timers
Battery Backup Switching
Reset Delay Time
Supply Voltage - Max
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Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
1 572In Stock
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
1 612In Stock
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
961In Stock
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
Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
1 563In Stock
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

Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
3 206In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SOT-23-3 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 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits 1uA Sup Push-Pull Act Low
Datasheet
62In Stock
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
2 740In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SC-70-3 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 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
1 382In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SC-70-3 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 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
807In Stock
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
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
1 480In Stock
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
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
560In Stock
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

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
3 184In Stock
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

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
2 155In Stock
3 000Expected 10/1/2026
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

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
2 656In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC70-3 3.08 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
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
2 593In Stock
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 MCP121 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
2 266In Stock
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
Microchip Technology Supervisory Circuits ACTIVE LO OPEN DRAIN W/INT 4.7K PULL UP
Datasheet
1 677In Stock
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
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
721In Stock
3 000Expected 10/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SOT-23-3 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 MCP131 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
239In Stock
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 MCP102 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
1 139In Stock
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
Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
1 830In Stock
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

Microchip Technology Supervisory Circuits Open Drain
Datasheet
9In Stock
6 000Expected 8/31/2026
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
234In Stock
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
496In Stock
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
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
1 050In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SOT-23-3 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 Reel, Cut Tape, MouseReel