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
  
                       
CAT823MTDI-GT3


Supervisory Circuits act low MRWD
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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 0.3674
Multiples of: 1145

Voltage SupervisorySmd/Smt TSOT - 23 - 53 v , 3.3 v , 5 V1 Input Manual ResetWatchdog   5.5 V- 40 C+ 85 C   Reel
CAT823LTDI-GT3


Voltage Monitor 3V/3.3V/5V 5-Pin TSOT-23 T/R
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ON Semiconductor Availability : 0
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USD 0.3674
Multiples of: 1145

Voltage SupervisorySmd/Smt TSOT - 23 - 53 v , 3.3 v , 5 V1 Input Manual Reset watchdog  5.5 V- 40 C+ 85 C   Reel
MC33164D-5G


Supervisory Circuits 4.27V UnderVoltage Sensing Circuit
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ON Semiconductor Availability : 0
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USD 0.3698
Multiples of: 98

Voltage SupervisorySmd/Smt SOIC - 85 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable10 V- 40 C+ 125 C Mc33164 Tube
714453CB


MC34064P-005 UNDERVOLTAGE SENSING T/HOLE
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USD 0.3708
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)4.6 V1 InputOpen Collector / DrainNo Manual Reset no watchdog adjustable6.5 V0 C+ 70 C   Bulk
CAT1025WI-25-GT3


Voltage Monitor 3V/3.3V/5V 8-Pin SOIC N T/R
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ON Semiconductor Availability : 0
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USD 0.3714
Multiples of: 3000

Voltage SupervisorySmd/Smt SOIC - 8 Wide 1 InputOpen Collector / DrainManual Reset watchdog 5 us7 V- 40 C+ 85 C Cat1025 Reel
NCP303LSN34T1G


Supervisory Circuits 3.4V Detector w/Reset Low
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ON Semiconductor Availability : 0
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USD 0.3808
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)3.4 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp303 Reel
MC34164P-5G


Supervisory Circuits 4.27V UnderVoltage Sensing Circuit
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ON Semiconductor Availability : 0
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USD 0.386
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)5 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backupadjustable10 V0 C+ 70 C Mc34164 Bulk
NCV303LSN49T1G


ON Semiconductor Supervisory Circuits 4.9V Detector wN-Channel Output
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USD 0.4062
Multiples of: 1036

Voltage DetectorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.9 V1 Input No Manual Reset no watchdog  10 V- 40 C+ 125 C2 %Ncv303Aec - Q100Reel
NCV301LSN20T1G


Supervisory Circuits ANA UNDERVOLT DETECT 2.0V
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ON Semiconductor Availability : 0
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USD 0.4062
Multiples of: 1036

Voltage MonitorsSmd/Smt TSOP - 52 V1 Input No Manual ResetNo Watchdogno watchdog  10 V- 40 C+ 125 C2 %Ncv301Aec - Q100Reel
NCV303LSN14T1G


Supervisory Circuits ANA UNDERVOLT
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ON Semiconductor Availability : 0
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USD 0.4062
Multiples of: 1036

Voltage Monitors               Ncv303 Reel
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