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
  
                       
CAT859MTBI-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 InputPush - PullNo Manual Reset no watchdog 20 us5.5 V- 40 C+ 85 C   Reel
MAX708SESA-TG


Supervisory Circuits 2.93V uP Supervisory
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ON Semiconductor Availability : 0
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USD 0.4846
Multiples of: 1

Voltage SupervisorySmd/Smt SOIC - 81 V To 5.5 V1 InputPush - PullManual ResetNo Watchdogno watchdogNo Backup200 ms5.5 V- 40 C+ 85 C Max708 Reel
NCP308SN090T1G


Supervisory Circuits Voltage Supervisor Ultra Low Quiescent Current Programmable Delay Time Low Quiescent Current Delay Time Pgmmable Supervisory 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 : 0
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USD 0.4943
Multiples of: 3000

Voltage Detectors               Ncp308 Cut Tape
NCP392CRFCCT1G


Supervisory Circuits OVP 100V- OVLO 14V
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ON Semiconductor Availability : 0
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USD 0.5002
Multiples of: 1

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CAT803JTBI-GT3


Processor Supervisor 4V 5V/3.3V/3V/2.5V 3-Pin SOT-23 T/R
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ON Semiconductor Availability : 0
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USD 0.5041
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 32.5 V , 3 V , 3.3 V , 5 V1 InputActive Low, Open DrainNo Manual Reset no watchdogNo Backup240 ms5.5 V- 40 C+ 85 C Cat803 Reel
NCP308MT190TBG


Supervisory Circuits Voltage Supervisor Ultra Low Quiescent Current Programmable Delay Time Low Quiescent Current Delay Time Pgmmable Supervisory 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 : 0
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USD 0.5064
Multiples of: 3000

Voltage Detectors               Ncp308 Cut Tape
NCP308MT150TBG


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 0.5064
Multiples of: 3000

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NCP308MT500TBG


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 0.5064
Multiples of: 3000

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NCP308SN250T1G


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 0.5064
Multiples of: 1

Voltage Detectors               Ncp308 Cut Tape
NCP308MT120TBG


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 0.5099
Multiples of: 825

Voltage Detectors               Ncp308 Cut Tape
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