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
  
                       
NCP803SN293D2T1G


Supervisor Open Drain or Open Collector 1 Channel SOT-23-3 (TO-236)
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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 : 3854
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USD 0.2081
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 V To 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup66 ms5.5 V- 40 C+ 105 C Ncp803 Reel
MC34064P-5RMG


Supervisor Open Drain or Open Collector 1 Channel TO-92 (TO-226)
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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 : 3768
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USD 0.4034
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)4.6 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable6.5 V0 C+ 70 C Mc34064 Ammo Pack
NCP304LSQ25T1G


Supervisory Circuits 2.5V 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 : 3749
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2475
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 42.5 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304Aec - Q100Reel
MC33064P-5RAG


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 : 3744
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.3082
Multiples of: 1

Voltage SupervisoryThrough Hole TO - 92 - 3 (TO - 226)4.6 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdog No Backupadjustable6.5 V- 40 C+ 85 C Mc33064 Reel
NCP302HSN09T1G


Supervisory Circuits 0.9V Detector w/Reset Hgh
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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 : 3727
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.2059
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)0.9 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp302 Reel
MC33164P-5G


Supervisory Circuits 4.27V 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 : 3718
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.3312
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
NCV33064DM-5R2G


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 : 3481
Ship by Tue. 04 Jun to Mon. 10 Jun Calender.png

USD 0.575
Multiples of: 1

                   
MC34064D-005G


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 : 3423
Ship by Mon. 10 Jun to Wed. 12 Jun Calender.png

USD 0.3666
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 84.6 V1 InputOpen Collector / DrainNo Manual Reset no watchdogNo Backupadjustable6.5 V0 C+ 70 C Mc34064 Tube
NCP304HSQ30T1G


Supervisory Circuits 3.0V 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 : 3414
Ship by Tue. 04 Jun to Mon. 10 Jun Calender.png

USD 0.1862
Multiples of: 1

Voltage MonitorsSmd/Smt SC - 82AB - 43 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 85 C2 %Ncp304 Reel
MC33161DMR2G


Supervisory Circuits Universal Voltage Monitor
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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 : 3395
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USD 0.8455
Multiples of: 1

Voltage SupervisorySmd/Smt MSOP - 81.27 V2 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable40 V- 40 C+ 105 C Mc33161 Reel
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