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.

Supervisory Circuits

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(Ex. GST)(▲▼)		Enter Qty TypeMounting StyleOutput VoltagePackage / CaseThreshold VoltageNumber of Inputs MonitoredOutput TypeManual ResetWatchdogWatchdog TimersBattery Backup SwitchingReset Delay TimeSupply Voltage - MaxMinimum Operating TemperatureMaximum Operating TemperatureAccuracySeriesQualificationPackaging
  
                       
NCV303LSN36T1G


Voltage Detector Automotive 5-Pin TSOP T/R
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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 0.2362
Multiples of: 1

Voltage Monitors               Ncv303 Reel
NCV803SQ308T1G


Supervisor Open Drain or Open Collector 1 Channel SC-70-3 (SOT323)
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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 0.2362
Multiples of: 1

Voltage Supervisory               Max803Aec - Q100Reel
NCP301LSN46T1G


Supervisory Circuits 4.6V 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
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USD 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.6 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP305LSQ35T1G


Supervisory Circuits 3.5V 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
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USD 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SC - 82AB - 43.5 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp305 Reel
NCP303LSN15T1G


Supervisory Circuits 1.5V 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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.5 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP302LSN15T1G


Supervisory Circuits 1.5V 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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.5 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
NCP303LSN38T1G


Supervisory Circuits 3.8V 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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3.8 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP304LSQ20T1G


ON Semiconductor Supervisory Circuits 2.0V 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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SC - 82AB - 42 V1 InputActive Low, CmosNo Manual Reset no watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304 Reel
NCP301HSN22T1G


Supervisory Circuits 2.2V Detector w/Reset High
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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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.2 V1 InputActive High, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP300LSN09T1G


Supervisory Circuits 0.9V 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 0.2395
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)0.9 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp300 Reel
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