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
  
                       
CAT809RTBI-GT3


Supervisory Circuits Push-pull Act 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 : 30535
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.207
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 32.5 V , 3 V , 3.3 V , 5 V1 InputActive Low, Push - PullNo Manual ResetNo Watchdogno watchdogNo Backup240 ms5.5 V- 40 C+ 85 C Cat809 Reel
MC33164D-3R2G


Supervisory Circuits 2.65V UnderVoltage Sensing Circuit
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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 : 5667
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USD 0.3047
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 83 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable10 V- 40 C+ 125 C Mc33164 Reel
NCP303LSN27T1G


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 : 5545
Ship by Fri. 21 Jun to Wed. 26 Jun Calender.png

USD 0.3108
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.7 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
MAX810RTRG


Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3 (TO-236)
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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 : 5519
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.2081
Multiples of: 1

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
NCV303LSN22T1G


ON Semiconductor Supervisory Circuits VDETECTOR W PROG DLY 2.2V
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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 : 5514
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.41
Multiples of: 1

Voltage Detectors               Ncp303Aec - Q100Reel
NCP308MT330TBG


Supervisory Circuits Voltage Supervisor, Ultra Low Quiescent Current, Programmable Delay Time
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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 : 5315
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.4937
Multiples of: 1

Voltage Detectors               Ncp308 Cut Tape
NCV303LSN31T1G


ON Semiconductor Supervisory Circuits VDETECTOR W PROG DLY 3.1V
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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 : 4568
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.3063
Multiples of: 1

Voltage MonitorsSmd/Smt TSOP - 53.1 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncp303Aec - Q100Reel
MC33064P-5RPG


Supervisory Circuits 4.59V UnderVoltage Sensing Circuit
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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 : 4525
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.3619
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)4.6 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backupadjustable6.5 V- 40 C+ 85 C Mc33064 Ammo Pack
CAT1021WI-30-GT3


Voltage Monitor 3V/3.3V/5V 8-Pin SOIC N 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 : 4365
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.9269
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 8 Wide3 V , 3.3 V , 5 V1 Input Manual Reset watchdog  5.5 V- 40 C+ 85 C Cat1021 Reel
NCP308MT180TBG


Supervisory Circuits Voltage Supervisor, Ultra Low Quiescent Current, Programmable Delay Time
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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 : 4235
Ship by Thu. 13 Jun to Mon. 17 Jun Calender.png

USD 0.4485
Multiples of: 1

Voltage Supervisory               Ncp308 Reel
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