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
  
                       
NCP301LSN42T1G


ON Semiconductor Supervisory Circuits 4.2V 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 : 2836
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2231
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 54.2 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP304LSQ09T1G


Supervisory Circuits 0.9V 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 : 2816
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.1955
Multiples of: 1

Voltage DetectorsSmd/Smt SC - 82AB - 4900 mV1 Input No Manual Reset no watchdog  10 V- 40 C+ 85 C2 %Ncp304 Cut Tape
NCP304LSQ45T1G


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 : 2803
Ship by Tue. 04 Jun to Mon. 10 Jun Calender.png

USD 0.1889
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 44.5 V1 InputActive Low, CmosNo Manual Reset no watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304 Reel
NCV303LSN12T1G


Supervisory Circuits AUTO 1.2V SUPERVISORY
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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 : 2803
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USD 0.3737
Multiples of: 1

Voltage DetectorsSmd/Smt TSOP - 51.2 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncv303Aec - Q100Cut Tape
MAX809SN490T1G


ON Semiconductor Supervisory Circuits 4.90V 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 : 2774
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2183
Multiples of: 1

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
CAT1025YI-30-GT3


Supervisory Circuits CPU SUP W2K EEPROM
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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 : 2773
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.9513
Multiples of: 1

Voltage SupervisorySmd/Smt TSSOP - 8 1 InputOpen Collector / DrainManual Reset watchdog 5 us7 V- 40 C+ 85 C Cat1025 Cut Tape
NCP304LSQ23T1G


Supervisory Circuits 2.3V 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 : 2744
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.1932
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 42.3 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 85 C2 %Ncp304 Reel
MAX810SQ120T1G


Supervisory Circuits ANA 1.20V 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 : 2744
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2675
Multiples of: 1

                  Cut Tape
NCP303LSN20T1G


Supervisory Circuits 2.0V 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 : 2735
Ship by Tue. 18 Jun to Fri. 21 Jun Calender.png

USD 0.2427
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
MAX809SQ293D1T1G


Supervisor Push-Pull, Totem Pole 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 : 2727
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2185
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup3.3 ms5.5 V- 40 C+ 105 C Max809 Reel
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