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
  
                       
NCP302LSN40T1G


ON Semiconductor Supervisory Circuits 4.0V 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
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USD 0.2051
Multiples of: 1756

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4 V1 InputActive Low, CmosNo Manual Reset no watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
NCV809RTRG


Processor Supervisor 2.63V 1.2V to 4.9V Automotive 3-Pin SOT-23 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 0.2054
Multiples of: 3000

Voltage Supervisory               Ncv809Aec - Q100Reel
NCP305LSQ24T1G


Supervisory Circuits 2.4V Detector w/Reset Low
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ON Semiconductor Availability : 0
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USD 0.2058
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 42.4 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp305 Reel
NCP305LSQ16T1G


Supervisory Circuits 1.6V Detector w/Reset Low
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ON Semiconductor Availability : 0
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USD 0.2059
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 41.6 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 85 C2 %Ncp305 Reel
CAT811MTBI-GT3


Supervisory Circuits Act. Lo w/PB 4-pin
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ON Semiconductor Availability : 0
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USD 0.2059
Multiples of: 1

                   
CAT809SSDI-GT3


Supervisory Circuits Push-pull Act low
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ON Semiconductor Availability : 0
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USD 0.2059
Multiples of: 1

                   
MAX803SQ293D1T1G


Supervisory Circuits ANA 2.93V MC RESET
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ON Semiconductor Availability : 0
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USD 0.2062
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup3.3 ms5.5 V- 40 C+ 105 C Max803 Reel
MAX809SN120T1G


ON Semiconductor Supervisory Circuits ANA 1.20V MC RESET
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ON Semiconductor Availability : 0
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USD 0.2072
Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputPush - PullNo Manual Reset no watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max809 Reel
NCP302LSN33T1G


Supervisory Circuits 3.3V 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 0.2073
Multiples of: 1

Voltage DetectorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3.3 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncp302 Reel
NCP303LSN10T1G


Supervisory Circuits 1.0V 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 0.2073
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp303 Reel
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