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
  
                       
NCP302LSN30T1G


Supervisory Circuits 3.0V 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 0.1313
Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
NCP303LSN09T1G


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 0.1326
Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)0.9 V1 Input No Manual ResetNo Watchdog   10 V- 40 C+ 85 C2 %Ncp303 Reel
NCP303LSN45T1G


ON Semiconductor Supervisory Circuits 4.5V 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 0.1326
Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.5 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP300HSN18T1G


Supervisory Circuits 1.8V 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 0.1331
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.8 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp300 Reel
MAX810MTRG


ON Semiconductor Supervisory Circuits 4.38V 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
Ship by 6 to 16 Weeks Calender.png

USD 0.1353
Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 V To 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max810 Reel
NCP300LSN30T1G


Supervisory Circuits 3.0V 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 0.1363
Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp300 Reel
NCP302HSN30T1G


Supervisory Circuits 3.0V Detector w/Reset Hgh
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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 0.1373
Multiples of: 3000

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
NCP303LSN42T1G


Supervisory Circuits 4.2V 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 0.1376
Multiples of: 42

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.2 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
NCP300LSN28T1G


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 Input No Manual ResetNo Watchdogno watchdog  10 V- 40 C+ 125 C2 %Ncp300 Reel
NCP301LSN40T1G


Supervisory Circuits 4.0V Detector w/Reset Low
Icon ROHS
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)4 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
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