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
  
                       
NCP308SN180T1G


Processor Supervisor 1.67V 1.8V 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 13497
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USD 0.4497
Multiples of: 1

Voltage Detectors               Ncp308 Reel
MAX809SQ293D3T1G


Supervisory Circuits ANA 2.93V MC RESET
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ON Semiconductor 12685
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USD 0.2082
Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 32.93 V1 InputActive LowNo Manual Reset no watchdogNo Backup330 ms5.5 V- 40 C+ 105 C Max809 Cut Tape
NCP308SN500T1G


Processor Supervisor 4.65V 5V 6-Pin TSOP
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ON Semiconductor 12542
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USD 0.4091
Multiples of: 1

Voltage Detectors               Ncp308 Reel
NCP803SN263T1G


ON Semiconductor Supervisory Circuits 2.63V 20mA 3-Pin wuP Reset N-Channel
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ON Semiconductor 11640
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USD 0.3735
Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 V To 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Ncp803 Reel
MC33164DM-3R2G


Supervisory Circuits 2.65V UnderVoltage Sensing Circuit
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ON Semiconductor 11640
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USD 0.5179
Multiples of: 1

Voltage SupervisorySmd/Smt MSOP - 83 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backupadjustable10 V- 40 C+ 125 C Mc33164 Reel
NCP300LSN45T1G


Supervisory Circuits 4.5V Detector w/Reset Low
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ON Semiconductor 11233
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USD 0.2059
Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.5 V1 InputActive Low, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp300 Reel
MAX810LTRG


Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3 (TO-236)
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ON Semiconductor 10349
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USD 0.2056
Multiples of: 5

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 Max810 Reel
CAT853TTBI-GT3


Supervisory Circuits SUP OPEN DRAIN ACT LOW
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ON Semiconductor 10296
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USD 0.3645
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 33.3 v , 5 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup240 ms5.5 V- 40 C+ 85 C Cat853 Reel
MAX809SN293D2T1G


ON Semiconductor Supervisory Circuits ANA 2.93V MC RESET
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ON Semiconductor 9345
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USD 0.2029
Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 32.93 V1 InputPush - PullNo Manual Reset no watchdogNo Backup66 ms5.5 V- 40 C+ 105 C Max809 Reel
MAX810STRG


Supervisor Push-Pull, Totem Pole 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 9338
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USD 0.2185
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 Max810 Reel
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