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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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
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Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
3 163In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SOT-23B-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 MCP102 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
3 812In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC70-3 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 MCP103 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Open Drain
Datasheet
4 034In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SC-70-3 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 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
4 852In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC-70-3 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
1 657In 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 MCP131 AEC-Q100 Bulk
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
1 169In 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 MCP131 AEC-Q100 Bulk
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
1 846In Stock
Min.: 1
Mult.: 1

Voltage Detector Through Hole TO-92-3 4.63 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 Open Drain Low
Datasheet
1 514In Stock
Min.: 1
Mult.: 1

Voltage Supervisory Through Hole TO-92-3 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 Bulk

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
2 448In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC70-3 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
2 145In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC70-3 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 MCP102 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
5 273In Stock
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 MCP102 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
9 672In Stock
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 MCP103 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Push-Pull Low
Datasheet
3 895In Stock
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 MCP103 AEC-Q100 Reel, Cut Tape, MouseReel

Microchip Technology Supervisory Circuits Open Drain
Datasheet
6 085In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SOT-23-3 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 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits 1uA Sup P-P Act Low
Datasheet
6 236In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Detector SMD/SMT SOT-23-3 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 Open Drain Low
Datasheet
5 950In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SOT-23-3 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
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
15 233In Stock
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 MCP121 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
6 660In Stock
12 000Expected 8/20/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SOT-23-3 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
5 232In Stock
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
Microchip Technology Supervisory Circuits ACTIVE LO OPEN DRAIN W/INT 4.7K PULL UP
Datasheet
6 334In 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
5 237In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SC70-3 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

Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
4 166In Stock
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 MCP131 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
14 362In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Voltage Supervisory SMD/SMT SOT-23-3 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 MCP131 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Open Drain Low
Datasheet
4 997In 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 MCP131 AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology Supervisory Circuits Open Drain
Datasheet
7 334In Stock
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