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
  
                       
NCV302HSN45T1G


Supervisory Circuits ANA UNDERVOLT DETECT
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ON Semiconductor 165850
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AUD 0.7484
Multiples of: 1

                   
CAT809STBI-GT3


Supervisory Circuits Push-pull Act low
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ON Semiconductor 103045
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AUD 0.3202
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
NCV308SNADJT1G


Supervisory Circuits Programmable Delay Time
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ON Semiconductor 101850
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AUD 0.3603
Multiples of: 1

Voltage SupervisorySmd/Smt TSOP - 60.405 V1 InputActive Low, Open DrainManual Reset no watchdogNo Backup 5.5 V- 40 C+ 150 C  Aec - Q100Cut Tape
NCV303LSN27T1G


Supervisory Circuits VOLTAGE DETECTOR 2.7V AUT
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ON Semiconductor 49470
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AUD 0.232
Multiples of: 3000

Voltage Detectors               Ncv303lsn27t1g Reel
MC33161DR2G


Supervisory Circuits Universal Voltage Monitor
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ON Semiconductor 48500
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AUD 0.9896
Multiples of: 2500

Voltage SupervisorySmd/Smt SOIC - 81.27 V2 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backupadjustable40 V- 40 C+ 105 C Mc33161 Reel
NCP803SN232T1G


Supervisory Circuits 2.32V 20mA 3-Pin w/uP Reset N-Channel
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ON Semiconductor 40710
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AUD 0.3121
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backup460 ms5.5 V- 40 C+ 105 C Ncp803 Reel
MAX803SQ438T1G


Supervisory Circuits ANA 4.38V MC RESET
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ON Semiconductor 31267
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AUD 0.303
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 V To 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max803 Reel
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 30535
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AUD 0.3185
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
NCV809STRG


ON Semiconductor Supervisory Circuits ANA 2.93V MCROPROC RESET
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ON Semiconductor 28473
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AUD 0.3432
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 V To 4.9 V1 InputActive Low, Push - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Ncv809Aec - Q100Reel
NCP803SN400T1G


Supervisory Circuits 4.00V RESET MONITOR
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ON Semiconductor 23691
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AUD 0.3255
Multiples of: 1

Voltage SupervisorySmd/Smt SOT23 - 34 V1 InputOpen Collector / DrainManual ResetNo Watchdogno watchdogNo Backup140 ms5.5 V + 105 C Ncp803 Reel
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