APX803L Micro Power Voltage Detectors

Diodes Incorporated APX803L Micro Power Voltage Detectors are designed for monitoring the power supplies in microprocessors (μP), μC, and digital systems. The APX803L requires a low supply current of only 1.0μA which minimizes the operating current, improving system efficiency on portable, battery-powered devices. High threshold voltage accuracy of +1.5% on the device allows precise VCC reset thresholds. The device circuits perform supervisory functions by sending out a reset signal when the monitored VCC level falls below the chosen threshold voltage level. The reset signal will remain until VCC recovers to a level higher than the threshold voltage, completing the cycle. Another benefit provided is an open-drain output with an active-low output pin that features several delay time options (0ms, 55ms, 220ms, and 450ms) as needed by the system. The packages of 3-pin SOT23, SOT323, SC59, SOT25, and two-pin variants are available on the APX803L Voltage Detectors.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
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Diodes Incorporated Supervisory Circuits 4.6V, 220ms Reset Generator
Datasheet
191In Stock
9,000Expected 2/5/2027
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel
Diodes Incorporated Supervisory Circuits 29V, 220ms Reset Generator
Datasheet
663In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-25-5 2.9 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 1.4V, 220ms Reset Generator
Datasheet
2,897In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 1.4 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.2V, 220ms Reset Generator
Datasheet
11,745In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.2 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.6V, 0ms Reset Generator
Datasheet
1,920In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.7V, 0ms Reset Generator
Datasheet
1,799In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.7 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits Reset Generator
Datasheet
662In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23R-3 2.7 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.8V, 0ms Reset Generator
Datasheet
1,041In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.8 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel
Diodes Incorporated Supervisory Circuits Reset Generator
Datasheet
3,072In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-323-3 2.9 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.9V, 0ms Reset Generator
Datasheet
3,513On Order
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
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 + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.0V, 0ms Reset Generator
Datasheet
4,460In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 760
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.1V, 0ms Reset Generator
Datasheet
2,526In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3.1 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.3V, 0ms Reset Generator
Datasheet
2,206In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3.3 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.6V, 0ms Reset Generator
Datasheet
1,677In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.4V, 0ms Reset Generator
Datasheet
4,397In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.4 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.6V, 0ms Reset Generator
Datasheet
2,693In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.6V, 55ms Reset Generator
Datasheet
2,652In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.8V, 55ms Reset Generator
Datasheet
2,810In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.8 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.9V, 55ms Reset Generator
Datasheet
1,997In Stock
6,000Expected 1/18/2027
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
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 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits Reset Generator
Datasheet
1,532In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23R-3 2.9 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.0V, 55ms Reset Generator
Datasheet
91In Stock
6,000Expected 12/23/2026
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 760
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.1V, 55ms Reset Generator
Datasheet
577In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3.1 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.3V, 55ms Reset Generator
Datasheet
2,579In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3.3 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.6V, 55ms Reset Generator
Datasheet
3,271In Stock
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.6 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 1.2V, 220ms Reset Generator
Datasheet
572In Stock
3,000Expected 4/19/2027
MouseReel Available
A tariff of 38% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 1.2 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel