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
  
                       
NCP308SN120T1G


Processor Supervisor 1.12V 1.2V 6-Pin TSOP 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 : 0
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USD 0.4091
Multiples of: 1

Voltage Supervisory               Ncp308 Reel
NCP308SN280T1G


Processor Supervisor 2.61V 2.8V 6-Pin TSOP
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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 0.4101
Multiples of: 3000

Voltage Detectors               Ncp308 Cut Tape
MAX809SN160T1G


Supervisory Circuits 1.60V uP Reset
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ON Semiconductor Availability : 0
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USD 0.4296
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 v to 4.9 V1 InputPush - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max809 Reel
NCP308MT125TBG


Processor Supervisor 1.16V 1.25V 6-Pin WDFN EP
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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 0.4428
Multiples of: 3000

Voltage Supervisory               Ncp308 Reel
NCP308MT090TBG


Supervisory Circuits Voltage Supervisor, Ultra Low Quiescent Current, Programmable Delay Time
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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 0.4443
Multiples of: 1

Voltage Detectors               Ncp308 Cut Tape
NCP308SN300T1G


Supervisory Circuits Voltage Supervisor, Ultra Low Quiescent Current, Programmable Delay Time
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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 0.4455
Multiples of: 3000

Voltage Supervisory               Ncp308 Reel
NCP301LSN27T1G


Supervisory Circuits 2.7V 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 : 0
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USD 0.4455
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.7 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
NCP348AEMTTBG


Supervisory Circuits POS OVERVLTG PROTECT CONTROLLER
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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 0.4461
Multiples of: 943

Voltage SupervisorySmd/Smt WDFN - 10 1 Input No Manual ResetNo Watchdogno watchdogNo Backup 28 V- 40 C+ 85 C Ncp348 Reel
CAT869MTBI-GT3


Processor Supervisor 4.38V 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 : 0
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USD 0.4592
Multiples of: 916

Voltage SupervisorySmd/Smt SOT - 23 - 33.3 v , 5 V1 Input No Manual Reset no watchdog  5.5 V- 40 C+ 85 C   Reel
CAT859CTBI-GT3


Processor Supervisor 2.4V 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 : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.4592
Multiples of: 916

Voltage SupervisorySmd/Smt SOT - 23 - 33.3 v , 5 V1 InputPush - PullNo Manual Reset no watchdog 20 us5.5 V- 40 C+ 85 C   Reel
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