APX803S/809S/810S MPU Supervisor Circuits

Diodes Inc. APX803S/809S/810S MPU Supervisor Circuits are used to monitor power supplies in μP, μC, and digital systems. The APX803S provides excellent circuit reliability and low cost by eliminating external components. The circuits are available with different reset thresholds designed to support different supply voltages (+5V, +3.3V, +3.0V, and +2.5V). These circuits assert a reset signal whenever the VCC supply voltage falls below a preset threshold. This keeps it asserted for at least 240ms after VCC has risen above the reset threshold.

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Description Datasheet Availability Pricing (THB) 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
Minimum Operating Temperature
Maximum Operating Temperature
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Diodes Incorporated Supervisory Circuits 3.08V, 240ms MPU Reset Circuit
Datasheet
34,718In Stock
30,000Expected 10/2/2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 3,000
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 3.08 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 85 C APX803S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
1,523In Stock
69,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 4,030
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active Low, Push-Pull No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
186In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Detector SMD/SMT SOT-23-3 2.93 V 1 Input Active Low, Push-Pull No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
9,204In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active Low, Push-Pull No Manual Reset No Watchdog No Backup 50 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
3,889In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active High, Push-Pull No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
593In Stock
3,000Expected 7/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active High, Push-Pull No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
1,800In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 4.38 V 1 Input Active High, Push-Pull No Manual Reset No Watchdog No Backup 240 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
1,845In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active High, Push-Pull No Manual Reset No Watchdog No Backup 1.7 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
751In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active High, Push-Pull No Manual Reset No Watchdog No Backup 1.7 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel
Diodes Incorporated Supervisory Circuits 2.93V, 1.7ms MPU Reset Circuit
Datasheet
5,130Expected 7/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active Low, Open Drain No Manual Reset No Watchdog No Backup 1.7 ms 5.5 V - 40 C + 85 C APX803S Reel, Cut Tape, MouseReel

Diodes Incorporated Supervisory Circuits 3-pin MPU Power Voltage Detector
Datasheet
8,505Expected 3/26/2027
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1,390
: 3,000

Voltage Monitor SMD/SMT SOT-23-3 2.93 V 1 Input Active Low, Push-Pull No Manual Reset No Watchdog No Backup 1.7 ms 5.5 V - 40 C + 125 C APX809S/810S Reel, Cut Tape, MouseReel