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
  
                       
NCV303LSN10T1G


Supervisory Circuits ANA UNDERVOLT DETECT
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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 : 2910
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USD 0.1531
Multiples of: 1

Voltage DetectorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 85 C2 %Ncv303Aec - Q100Cut Tape
CAT809MTBI-GT3


Supervisory Circuits Push-pull Act low
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ON Semiconductor Availability : 2910
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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
NCP304ALSQ43T1G


Supervisory Circuits ANA UNDERVOLT DETECT 4.3V
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ON Semiconductor Availability : 2910
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USD 0.2413
Multiples of: 1

 Smd/Smt SC - 82AB          + 125 C Ncp304a Cut Tape
NCP803SN308T1G


ON Semiconductor Supervisory Circuits 3.08V 20mA 3-Pin wuP Reset N-Channel
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ON Semiconductor Availability : 2910
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USD 0.3639
Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Ncp803 Reel
NCV302LSN20T1G


Supervisory Circuits AUTO 302 DEVICE 2.9V
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ON Semiconductor Availability : 2910
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USD 0.3737
Multiples of: 1

                  Cut Tape
N84C161WD28TG


Supervisory Circuits CPU SUP WITH 16K EEPROM
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ON Semiconductor Availability : 2910
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USD 1.1984
Multiples of: 1

 Smd/Smt SOIC - 8              Cut Tape
NCP308MT280TBG


Supervisory Circuits Voltage Supervisor Ultra Low Quiescent Current Programmable Delay Time Low Quiescent Current Delay Time Pgmmable Supervisory Ckt
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ON Semiconductor Availability : 2909
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USD 0.4354
Multiples of: 1

Voltage Detectors               Ncp308 Cut Tape
CAT1023WI-42-GT3


Voltage Monitor 3V/3.3V/5V 8-Pin SOIC N T/R
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ON Semiconductor Availability : 2909
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USD 0.4566
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 8 Wide 1 InputOpen Collector / DrainManual Reset watchdog 5 us7 V- 40 C+ 85 C Cat1023 Reel
CAT1025WI-42-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 : 2909
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USD 0.46
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 8 Wide3 v , 3.3 v , 5 V1 Input Manual Reset no watchdog  5.5 V- 40 C+ 85 C Cat1025 Reel
CAT1023YI-42-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 : 2909
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USD 0.9513
Multiples of: 1

Voltage SupervisorySmd/Smt TSSOP - 8 1 InputOpen Collector / DrainManual Reset watchdog 5 us7 V- 40 C+ 85 C Cat1023 Cut Tape
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