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
  
                       
NCP303LSN40T1G


Supervisory Circuits 4.0V 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
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USD 0.8461
Multiples of: 1

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 %Ncp303 Reel
CAT1161WI-30-GT3


Supervisory Circuits CPU w/16K
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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 0.8533
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 8 Wide3 v , 3.3 v , 5 V1 InputActive High, Active Low, Open DrainManual ResetWatchdogwatchdogNo Backup270 ms6 V- 40 C+ 85 C   Reel
CAT1024YI-45-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 : 0
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USD 0.8585
Multiples of: 1

Voltage SupervisorySmd/Smt TSSOP - 8 1 InputOpen Collector / DrainManual Reset no watchdog 200 ms7 V- 40 C+ 85 C Cat1024 Cut Tape
CAT1161LI-25-G


Supervisory Circuits CPU w/16K
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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 0.8586
Multiples of: 1

Voltage SupervisoryThrough Hole PDIP - 83 v , 3.3 v , 5 V1 InputActive High, Active Low, Open DrainManual Reset watchdogNo Backup270 ms6 V- 40 C+ 85 C    
NCP301LSN30T1G


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
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USD 0.8849
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
CAT1161LI-28-G


Supervisory Circuits CPU w/16K
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ON Semiconductor Availability : 0
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USD 0.9038
Multiples of: 1

Voltage SupervisoryThrough Hole PDIP - 82.8 V1 InputActive High, Active Low, Open DrainManual Reset watchdogNo Backup270 ms6 V- 40 C+ 85 C    
CAT1163WI-30-T3


Supervisory Circuits CPU Supervisor with 16K 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 : 0
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USD 0.9447
Multiples of: 446

Voltage SupervisorySmd/Smt SOIC - 8 Wide3 v , 3.3 v , 5 V1 InputActive High, Active Low, Open DrainManual Reset watchdogNo Backup270 ms6 V- 40 C+ 85 C   Reel
CAT1320LI-30-G


Supply Voltage Supervisory 3V/3.3V/5V 8-Pin PDIP Rail
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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 0.965
Multiples of: 50

Voltage SupervisoryThrough Hole PDIP - 83 v , 3.3 v , 5 V1 Input Manual Reset no watchdog  5.5 V- 40 C+ 85 C Cat1320 Tube
CAT1320LI-45-G


Supply Voltage Supervisory 3V/3.3V/5V 8-Pin PDIP Rail
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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 0.965
Multiples of: 50

Voltage SupervisoryThrough Hole PDIP - 83 v , 3.3 v , 5 V1 Input Manual Reset no watchdog  5.5 V- 40 C+ 85 C Cat1320 Tube
CAT1021WI-42-GT3


Supervisory Circuits CPU w/2K
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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 1.0177
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
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