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
  
                       
Hot NCP301HSN18T1G


Supervisory Circuits 1.8V Detector wReset 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 : 348
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USD 0.1856
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)1.8 V1 Input No Manual ResetNo Watchdogno watchdog  10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP301LSN09T1G


Supervisory Circuits 0.9V 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 : 317
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USD 0.375
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)0.9 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp301 Reel
NCV33064P-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 : 305
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USD 0.5687
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)4.61 V1 InputOpen Collector / DrainNo Manual Reset no watchdog adjustable6.5 V- 40 C+ 125 C Ncv33064Aec - Q100Bulk
CAT1025WI-30-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 : 305
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USD 0.8349
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 8 Wide3 V , 3.3 V , 5 V1 InputActive High, Active Low, Open DrainManual ResetNo Watchdogno watchdogNo Backup 5.5 V- 40 C+ 85 C Cat1025 Reel
NCP300LSN44T1G


Supervisory Circuits 4.4V 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 : 291
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USD 0.2974
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.4 V1 Input No Manual ResetNo Watchdog   10 V- 40 C+ 125 C2 %Ncp300 Reel
CAX809JTBI-T3


Processor Supervisor 4V 5V/3.3V/3V/2.5V 3-Pin SOT-23 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 : 290
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USD 0.2928
Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 32.5 v , 3 v , 3.3 v , 5 v4 InputActive Low, Push - Pull       + 85 C   Reel
NCP301LSN31T1G


Supervisory Circuits 3.1V 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 : 274
Ship by Thu. 15 Aug to Tue. 20 Aug Calender.png

USD 0.2739
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3.1 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP305LSQ09T1G


ON Semiconductor Supervisory Circuits 0.9V 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 : 251
Ship by Wed. 07 Aug to Fri. 09 Aug Calender.png

USD 0.1955
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 40.9 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp305 Reel
NCP304HSQ20T1G


Supervisory Circuits 2.0V 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 : 236
Ship by Wed. 07 Aug to Fri. 09 Aug Calender.png

USD 0.1955
Multiples of: 1

Voltage DetectorsSmd/Smt SC - 82AB - 42 V1 InputActive High, CmosNo Manual Reset no watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304 Cut Tape
CAT809ZTBI-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 : 224
Ship by Thu. 15 Aug to Tue. 20 Aug Calender.png

USD 0.6901
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
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