About Supervisory Circuits

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

Enable Filter
  Manufacturer
Reset
  Type
Reset
  Mounting Style
Reset
  Output Voltage
Reset
  Package / Case
Reset
  Threshold Voltage
Reset
  Number Of Inputs Monitored
Reset
  Output Type
Reset
  Manual Reset
Reset
  Watchdog
Reset
  Watchdog Timers
Reset
  Battery Backup Switching
Reset
  Reset Delay Time
Reset
  Supply Voltage - Max
Reset
  Minimum Operating Temperature
Reset
  Maximum Operating Temperature
Reset
  Accuracy
Reset
  Series
Reset
  Qualification
Reset
  Packaging
Reset
1 2345...
1 2345...
Image  Information Image Stock Code(▲▼)Description
Manufacturer
Global Stock ⓘ (▲▼)Price(USD) 

(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
  
                       
NCV809STRG


ON Semiconductor Supervisory Circuits ANA 2.93V MCROPROC RESET
Icon ROHS
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 : 28473
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.2134

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 31.2 V To 4.9 V1 InputActive Low, Push - PullNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Ncv809Aec - Q100Reel
APX825A-29W6G-7


Supervisory Circuits 1.1V-5.5V 2.93V 20mA
Icon ROHS
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.

Diodes Incorporated Availability : 28424
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.1573

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 26 - 62.93 V1 InputActive High, Active LowManual Reset watchdogNo Backup280 ms5.5 V- 40 C+ 85 C Apx825 Cut Tape
MIC2782FLYCS TR


Supervisory Circuits Dual Input Push Button Reset IC
Icon ROHS
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.

Microchip Availability : 28103
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.4496

Multiples of: 1

Voltage SupervisorySmd/Smt WLCSP - 6 2 InputActive Low, Open DrainManual ResetNo Watchdogno watchdogNo Backup0.5 s5.5 V- 40 C+ 85 C Mic2782 Reel
MIC826SYMT-TR


Supervisory Circuits Voltage Supervisor Watchdog/Dual Output
Icon ROHS
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.

Microchip Availability : 27408
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.3333

Multiples of: 1

Voltage SupervisorySmd/Smt TDFN - 61.8 v to 5 V1 InputActive High, Active Low, Push - PullManual ResetWatchdogwatchdogNo Backup10 us5 V- 40 C+ 125 C Mic826 Reel
SP809NEK-L-3-1/TR


SP809 Series 3.1V 140ms Low Power Microprocessor Supervisory Circuit - SOT-23-3
Icon ROHS
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.

MaxLinear Availability : 26907
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.1921

Multiples of: 1

Voltage Supervisory      No  No       Tape And Reel
MIC2782DRYCS-TR


Supervisor Open Drain or Open Collector 2 Channel 6-WLCSP (0.8x1.2)
Icon ROHS
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.

Microchip Availability : 26777
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.4684

Multiples of: 1

Voltage SupervisorySmd/Smt WLCSP - 6 2 InputActive Low, Open DrainManual ResetNo Watchdogno watchdogNo Backup2 s5.5 V- 40 C+ 85 C Mic2782 Reel
CAT809RTBI-GT3


Supervisory Circuits Push-pull Act low
Icon ROHS
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 : 26626
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.2035

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 32.5 V , 3 V , 3.3 V , 5 V1 InputActive Low, Push - PullNo Manual ResetNo Watchdogno watchdogNo Backup240 ms5.5 V- 40 C+ 85 C Cat809 Reel
MCP120T-300I/TT


Supervisory Circuits Open Drain Low
Icon ROHS
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.

Microchip Availability : 26190
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.3381

Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 33 v , 3.3 v , 5 V1 InputActive Low, Open DrainNo Manual ResetNo Watchdogno watchdogNo Backup350 ms5.5 V- 40 C+ 85 C Mcp120 Reel
STM6519AHARUB6F


Supervisory Circuits 4-Pin Smart Reset IC 2V to 5.5V 1uA
Icon ROHS
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.

STMicroelectronics Availability : 26190
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.4878

Multiples of: 3000

Voltage SupervisorySmd/Smt UDFN - 6L 1 InputActive Low, Open DrainManual ResetNo Watchdogno watchdogNo Backup4 s5.5 V- 40 C+ 85 C Stm6519 Reel
NCP308SN300T1G


Supervisory Circuits Voltage Supervisor, Ultra Low Quiescent Current, Programmable Delay Time
Icon ROHS
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 : 26135
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.5592

Multiples of: 1

Voltage Supervisory               Ncp308 Reel
TPS3840PL20DBVR


Supervisory Circuits Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay 5-SOT-23 -40 to 125
Icon ROHS
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.

Texas Instruments Availability : 25940
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.3718

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 52 V1 InputActive Low, Open DrainManual Reset no watchdogBackup619 ms10 V- 40 C+ 125 C1 %Tps3840  
NCP301HSN22T1G


Supervisory Circuits 2.2V Detector w/Reset High
Icon ROHS
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 : 24298
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.2626

Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)2.2 V1 InputActive High, Open DrainNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp301 Reel
TPS3421EGDRYR


Supervisory Circuits Dual Ch Push Button Controller
Icon ROHS
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.

Texas Instruments Availability : 24202
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.6863

Multiples of: 1

Voltage SupervisorySmd/Smt USON - 61.6 v to 6.5 V2 InputActive Low, Open DrainManual Reset no watchdogNo Backup 6.5 V- 40 C+ 125 C Tps3421eg Reel
MIC2779L-2YM5-TR


Supervisory Circuits V-Supervisor w/Adj. Hysteresis, Active-High Ouput, 2% Accuracy
Icon ROHS
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.

Microchip Availability : 23762
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.9961

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23              Reel
2U3838K33QDBVRG4Q1


Processor Supervisor 2.93V 1.6V to 6V Automotive 5-Pin SOT-23 T/R
Icon ROHS
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.

Texas Instruments Availability : 23575
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 2.457

Multiples of: 1

Voltage SupervisorySmd/Smt SOT - 23 - 52.93 V1 InputActive Low, Open DrainManual Reset no watchdogNo Backup300 ms6 V- 40 C+ 125 C Tps3838k33 - Q1 Reel
NCP302HSN45T1G


Supervisory Circuits 4.5V Detector w/Reset Hgh
Icon ROHS
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 : 23280
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.2626

Multiples of: 1

Voltage MonitorsSmd/Smt SOT - 23 - 5 TH in (TSOP - 5)4.5 V1 InputActive High, CmosNo Manual ResetNo Watchdogno watchdogBackup 10 V- 40 C+ 125 C2 %Ncp302 Reel
CAX803STBI-T3


Processor Supervisor 2.93V 5V/3.3V/3V/2.5V 3-Pin SOT-23 T/R
Icon ROHS
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 : 23275
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.0725

Multiples of: 3000

Voltage SupervisorySmd/Smt SOT - 23 - 35 V1 InputActive Low, Open DrainManual Reset no watchdogNo Backup20 us5.5 V- 40 C+ 85 C Cax803 Reel
STWD100NYWY3F


Peripheral circuit; timer; open drain; Active logical level: low
Icon ROHS
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.

STMicroelectronics Availability : 23260
Ship by Fri. 18 Apr to Wed. 23 Apr Calender.png

USD 0.2541

Multiples of: 1

                   
MAX803SQ120T1G


Supervisory Circuits ANA 1.20V MC RESET
Icon ROHS
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 : 20370
Ship by Fri. 04 Apr to Thu. 10 Apr Calender.png

USD 0.2689

Multiples of: 1

Voltage SupervisorySmd/Smt SC - 70 - 31.2 v to 4.9 V1 InputOpen Collector / DrainNo Manual ResetNo Watchdogno watchdogNo Backup460 ms5.5 V- 40 C+ 105 C Max803 Reel
TPS3840PL18DBVR


Supervisory Circuits Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay 5-SOT-23 -40 to 125
Icon ROHS
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.

Texas Instruments Availability : 3908
Ship by Wed. 02 Apr to Fri. 04 Apr Calender.png

USD 0.3223

Multiples of: 1

                  Cut Tape
  • NoFilter
  • Contains
  • DoesNotContain
  • StartsWith
  • EndsWith
  • EqualTo
  • NotEqualTo
  • GreaterThan
  • LessThan
  • GreaterThanOrEqualTo
  • LessThanOrEqualTo
  • Between
  • NotBetween
  • IsEmpty
  • NotIsEmpty
  • IsNull
  • NotIsNull
  • Custom
1 2345...

Looking for help? Visit our FAQ's Section to answer to all your questions

Resources

Company

Support

 

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
  +61 8 9358 9358 |   sales@x-on.com.au |   Chat
 
Policies | Terms and Conditions | Sitemap

Copyright ©2025  X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted ISO Certified AS9120 Certified