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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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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Diodes Incorporated Supervisory Circuits 1.2V, 220ms Reset Generator
Datasheet
4,501In Stock
MouseReel Available
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

Diodes Incorporated Supervisory Circuits 1.6V, 220ms Reset Generator
Datasheet
143In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 1.6 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 1.8V, 220ms Reset Generator
Datasheet
3,020In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 1.8 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 2.3V, 220ms Reset Generator
Datasheet
422In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.3 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 2.5V, 220ms Reset Generator
Datasheet
3,447In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.5 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, 220ms Reset Generator
Datasheet
4,829In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.7V, 220ms Reset Generator
Datasheet
918In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.7V, 220ms Reset Generator
Datasheet
2,212In Stock
3,000Expected 02/06/2026
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.8V, 220ms Reset Generator
Datasheet
4,407In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.9V, 220ms Reset Generator
Datasheet
136In Stock
15,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 910
: 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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.0V, 220ms Reset Generator
Datasheet
3,707In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 3 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 3.1V, 220ms Reset Generator
Datasheet
3,165In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.3V, 220ms Reset Generator
Datasheet
2,890In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.6V, 220ms Reset Generator
Datasheet
3,865In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.1V, 220ms Reset Generator
Datasheet
2,959In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.1 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 4.3V, 220ms Reset Generator
Datasheet
3,421In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4.3 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 4.4V, 220ms Reset Generator
Datasheet
329In Stock
MouseReel Available
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 220 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.6V, 450ms Reset Generator
Datasheet
3,278In Stock
MouseReel Available
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 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.7V, 450ms Reset Generator
Datasheet
2,837In Stock
MouseReel Available
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 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits Reset Generator
Datasheet
2,972In Stock
MouseReel Available
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 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.9V, 450ms Reset Generator
Datasheet
4,644In 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 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3.3V, 450ms Reset Generator
Datasheet
4,793In Stock
MouseReel Available
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 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 4.0V, 450ms Reset Generator
Datasheet
4,654In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 4 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 450 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 2.5V, 0ms Reset Generator
Datasheet
2,910Expected 19/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.5 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, 55ms Reset Generator
Datasheet
2,960Expected 09/09/2026
MouseReel Available
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 55 ms 5.5 V - 40 C + 150 C 1.5 % APX803L Reel, Cut Tape, MouseReel