About Supervisory Circuits

On Semiconductor Supervisory Circuits

Supervisory circuits are electronic circuits used to monitor and control the operation of other circuits or systems. They are commonly found in appliances, industrial equipment and other electronic systems where reliable operation is required. Supervisory circuits monitor and control the behavior of other circuits and systems, providing feedback and making adjustments as necessary to keep them within acceptable parameters. They are generally composed of several parts, including sensors, comparators, alarms, timers, and relays. The sensors monitor the voltage, current, and temperature of the circuits and systems, while the comparators compare these values to normal operating parameters. Alarms are triggered when parameters are out of range, while the relays are used to activate corrective actions, such as turning off equipment or engaging a fail-safe mode. Timers are typically used to monitor the length of time a certain condition has been present, allowing the supervisor circuit to shut down the system before it is damaged by an enduring failure.
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Enter Qty TypeMounting StyleOutput VoltagePackage / CaseThreshold VoltageNumber of Inputs MonitoredOutput TypeManual ResetWatchdogWatchdog TimersBattery Backup SwitchingReset Delay TimeSupply Voltage - MaxMinimum Operating TemperatureMaximum Operating TemperatureAccuracySeriesQualificationPackaging
  
                       
NCP303LSN28T1G


Supervisory Circuits 2.8V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1399

Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.8 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP303LSN22T1G


Supervisory Circuits 2.2V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1399

Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.2 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP300LSN185T1G


Supervisory Circuits 1.85V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1407

Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.85 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp300 Reel
MAX809STRG


Supervisory Circuits 2.93V uP Reset
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
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USD 0.1431

Multiples of: 5

Voltage SupervisorySmd/Smt SOT - 23 - 32.93 V1 InputActive LowNo Manual Reset no watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max809 Cut Tape
NCP303LSN09T2G


Supervisory Circuits VOLTAGE DETECTOR 0.9
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
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USD 0.1435

Multiples of: 3000

Voltage Detectors                 Cut Tape
NCP303LSN18T1G


Supervisory Circuits 1.8V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.146

Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.8 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP303LSN29T1G


ON Semiconductor Supervisory Circuits 2.9V Detector wReset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1462

Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.9 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP302LSN27T1G


Supervisory Circuits 2.7V Detector w/Reset Low
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1483

Multiples of: 50

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.7 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
MAX809SQ308T1G


Supervisory Circuits ANA 3.08V MC RESET
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
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USD 0.1502

Multiples of: 3000

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdog No Backup460 ms5.5 V- 40 C+ 105 C Max809 Reel
NCV300LSN28T1G


ON Semiconductor Supervisory Circuits ANA UNDERVOLT DETECT 2.8V
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1506

Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.8 V1 InputActive Low, CmosNo Manual Reset no watchdogBackup 10 V- 40 C+ 125 C2 %Ncv300Aec - Q100Reel
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