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
  
                       
MC33164P5


MC33164P5 MICROPWR SENSING U/VOLT CCT 5V
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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 : 29
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USD 0.6531
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)5 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable10 V- 40 C+ 125 C Mc33164 Bulk
MAX809SN293D1T1G


Supervisory Circuits ANA 2.93V MC RESET
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ON Semiconductor Availability : 26
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USD 0.1934
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdog No Backup3.3 ms5.5 V- 40 C+ 105 C Max809 Reel
CAT1021LI-45-G


Supervisory Circuits CPU w/2K
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ON Semiconductor Availability : 19
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USD 0.5127
Multiples of: 1

Voltage SupervisoryThrough Hole PDIP - 83 v , 3.3 v , 5 V1 InputActive High, Active Low, Open DrainManual ResetWatchdogwatchdogNo Backup200 ms5 V- 40 C+ 85 C Cat1021 Tube
Hot MC34164D-5G


Supervisory Circuits 4.27V UnderVoltage Sensing Circuit
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ON Semiconductor Availability : 16
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USD 0.2867
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Voltage SupervisorySmd/Smt SOIC - 85 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable10 V0 C+ 70 C Mc34164 Tube
NCP308SNADJT1G


Supervisory Circuits ADJUSTABLE NCP308 TSOP6
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ON Semiconductor Availability : 12
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USD 0.6341
Multiples of: 1

Voltage Supervisory  TSOP - 6 1 InputActive Low, Open DrainManual ResetNo Watchdogno watchdogNo Backup     Ncp308 Reel
NCP302HSN27T1G


Supervisory Circuits 2.7V Detector w/Reset Hgh
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ON Semiconductor Availability : 9
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USD 0.4946
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.7 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
MC34161DMR2G


Supervisory Circuits Universal Voltage Monitor
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ON Semiconductor Availability : 9
Ship by Fri. 16 Aug to Wed. 21 Aug Calender.png

USD 2.0112
Multiples of: 1

Voltage SupervisorySmd/Smt MSOP - 81.27 V2 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable40 V0 C+ 70 C Mc33161 Reel
MAX809SQ293T1G


Supervisory Circuits ANA 2.93V MC RESET
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ON Semiconductor Availability : 7
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USD 0.1758
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max809 Reel
NCV303LSN44T1G


Supervisory Circuits 4.4V Detector wN-Channel Output
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ON Semiconductor Availability : 6
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USD 0.1404
Multiples of: 1

                  Cut Tape
CAT811STBI-GT3


Supervisory Circuits Act. Lo w/PB 4-pin
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ON Semiconductor Availability : 6
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USD 0.3444
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 143 - 42.5 V , 3 V , 3.3 V , 5 V4 InputPush - PullManual ResetNo Watchdog Backup240 ms5.5 V- 40 C+ 85 C Cat811 Reel
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