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 Smart Filtering (Note: Disable Smart Filtering for quicker results)

Select	Filter Name
	Manufacturer
	Type
	Mounting Style
	Output Voltage
	Package / Case
	Threshold Voltage
	Number of Inputs Monitored
	Output Type
	Manual Reset
	Watchdog
	Watchdog Timers
	Battery Backup Switching
	Reset Delay Time
	Supply Voltage - Max
	Minimum Operating Temperature
	Maximum Operating Temperature
	Accuracy
	Series
	Qualification
	Packaging

Sorting

Sort Column:

Sort Direction:

First

...

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

TCM810RVLB713

Microchip Technology Supervisory Circuits Microprocessor 2.63V

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 : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4375

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active High, Push - Pull

No Manual Reset

no watchdog

No Backup

560 ms

5.5 V

- 40 C

+ 125 C

Tcm810

Reel

KTS1612EQU-TR

Supervisory Circuits Dual-Input Push Button Reset IC with Two Discharge Paths

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.

Kinetic Technologies

Availability : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4398

Multiples of: 1

Voltage Monitors

Smd/Smt

UQFN - 10

2 Input

Open Drain, Push - Pull

Manual Reset

no watchdog

No Backup

10 s

5.5 V

- 40 C

+ 85 C

Cut Tape

TPS3840DL41DBVRQ1

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

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 : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4404

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

4.1 V

1 Input

Active Low, Open Drain

Manual Reset

no watchdog

Backup

619 ms

10 V

- 40 C

+ 125 C

1 %

Tps3840

Aec - Q100

Cut Tape

BD45421G-TR

Supervisory Circuits RESET DETEC VOLT 4.2V

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.

ROHM

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4415

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

4.2 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd45

Reel

MCP112T-270E/TT

Supervisory Circuits 1uA Sup P-P Act Low

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 : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4425

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.63 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

90 us

5.5 V

- 40 C

+ 125 C

Mcp112

Reel

MCP103T-475ETT

Microchip Technology Supervisory Circuits Push-Pull Low

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 : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4445

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

4.63 V

1 Input

No Manual Reset

no watchdog

5.5 V

- 40 C

+ 125 C

Mcp103

Reel

BD45355G-TR

Supervisor Open Drain or Open Collector 1 Channel 5-SSOP

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.

ROHM

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.445

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

3.5 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd45

Reel

MIC811MUY-TR

Supervisory Circuits Microprocessor Reset Circuit with Manual Reset, Push-Pull Active-Low Output, 4.38V Threshold, 140ms reset pulse in SOT143-4 - Lead Free

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 : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4455

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

4.38 V

1 Input

Active Low

Manual Reset

No Watchdog

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 85 C

Mic811

Reel

S-80918CNMC-G8NT2G

Processor Supervisor 1.8V 1 Active Low/Open Drain 5-Pin SOT-23

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.

Ablic

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4506

Multiples of: 3000

S-80930CLMC-G60T2G

Processor Supervisor 3V 1 Active Low/CMOS 5-Pin SOT-23

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.

Ablic

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4506

Multiples of: 3000

BU4223FVE-TR

Supervisory Circuits LOW VOLT DETECT VOLT 2.5V

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.

ROHM

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4518

Multiples of: 1

Voltage Monitors

Smd/Smt

VSOF - 5

2.3 V

Bu42

Reel

MIC809MUY-TR

Supervisory Circuits 3-Pin Microprocessor Reset Circuit with Push-Pull Active-Low Output, 4.38V Threshold, 140ms reset pulse in SOT23-3 - Lead Free

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 : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4549

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

1 Input

Active Low, Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

Mic809

Reel

BD4843G-TR

Supervisory Circuits CMOS DETEC VOLT 4.3V

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.

ROHM

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4586

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

4.3 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

10 V

- 40 C

+ 105 C

1 %

Bd48

Reel

TC54VN2102ECB713

Processor Supervisor 2.1V 1 Open Drain 3-Pin SOT-23A T/R

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 : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4637

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23A - 3

1.1 v to 6 V

1 Input

Cmos, Open Drain

No Manual Reset

No Watchdog

Backup

10 V

- 40 C

+ 85 C

Tc54

Reel

S-1009N42I-M5T1U

Supervisory Circuits VOLTAGE DETECTOR ULTRA LOW IQ

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.

ABLIC

Availability : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4653

Multiples of: 1

Voltage Detectors

SOT - 23 - 5

S - 1009

Cut Tape

S-1009N30I-N4T1U

Supervisory Circuits VOLTAGE DETECTOR ULTRA LOW IQ

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.

ABLIC

Availability : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4653

Multiples of: 1

Voltage Detectors

SC - 82AB - 4

S - 1009

Cut Tape

BD45275G-TR

Supervisor Open Drain or Open Collector 1 Channel 5-SSOP

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.

ROHM

Availability : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4716

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.7 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

50 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

STM1001MWX6F

Supervisory Circuits RESET CIRCUIT

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 : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4789

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 v , 3.3 v , 5 V

3 Input

Push - Pull

No Manual Reset

No Watchdog

No Backup

280 ms

7 V

- 40 C

+ 85 C

Stm1001

Reel

S-1002NA10I-M5T1U

Supervisory Circuits Voltage Detector

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.

ABLIC

Availability : 2910
Ship by Fri. 29 Aug to Tue. 02 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.481

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 5

1 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

40 us

10 V

- 40 C

+ 85 C

S - 1002

Cut Tape

STM6824TWY6F

Supervisory Circuits 3.000 to 3.150VRST Watchdog Input

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 : 2910
Ship by Tue. 02 Sep to Mon. 08 Sep

September 2025