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

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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

MAX810SQ293T1G

Supervisory Circuits ANA 2.93V MC RESET

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 : 4222
Ship by Thu. 28 Aug to Mon. 01 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 0.2302

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

2.93 V

1 Input

Active High

No Manual Reset

no watchdog

No Backup

460 ms

5.5 V

- 40 C

+ 105 C

Max810

Cut Tape

MIC2774N-31YM5 TR

Supervisory Circuits Dual Voltage Supervisor with 0.3V and 3.09V Thresholds, Active-Low Open-Drain Output, 140ms Reset Pulse, Manual Reset, SOT23-5 (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 : 4217
Ship by Thu. 28 Aug to Mon. 01 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 0.7436

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

3.09 V

2 Input

Active Low, Open Drain

Manual Reset

No Watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Mic2774n

Reel

MIC2777-31YM5-TR

Supervisory Circuits Dual Voltage Supervisor with 0.3V and 3.09V Thresholds, Active-High and Active-L

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 : 4207
Ship by Thu. 28 Aug to Mon. 01 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 0.8008

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23

Mic2777

Reel

MCP112T-240ETT

Microchip Technology 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 : 4195
Ship by Thu. 28 Aug to Mon. 01 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 0.3817

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.32 V

1 Input

No Manual Reset

no watchdog

5.5 V

- 40 C

+ 125 C

Mcp112

Reel

BD4728G-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 : 4192
Ship by Mon. 01 Sep to Fri. 05 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 0.6149

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 5

2.8 V

1 Input

Open Collectors

No Manual Reset

No Watchdog

no watchdog

No Backup

0.85 V

- 40 C

+ 75 C

1 %

Bd47

Reel

MCP810T-450I/TT

Supervisory Circuits Push-Pull High

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 : 4136
Ship by Thu. 28 Aug to Mon. 01 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 - 23 - 3

3 v , 3.3 v , 5 V

1 Input

Active High, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

350 ms

5.5 V

- 40 C

+ 85 C

Mcp810

Reel

BD45301G-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 : 4125
Ship by Thu. 28 Aug to Mon. 01 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 0.3036

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

3 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

100 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

BD45262G-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 : 4122
Ship by Thu. 28 Aug to Mon. 01 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 0.308

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.6 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

MP6411GS-33-Z

Supervisory Circuits Fixed 3.3V Windowed Watchdog Timer

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.

Monolithic Power Systems

Availability : 4122
Ship by Thu. 28 Aug to Mon. 01 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 0.945

Multiples of: 1

Cut Tape

SP809EK-L-2-9/TR

Supervisory Circuits 3 PIN MICROPROCESSOR 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.

MaxLinear

Availability : 4044
Ship by Mon. 15 Sep to Thu. 18 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 0.1787

Multiples of: 5

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.9 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

20 us

6 V

- 40 C

+ 85 C

Sp809

Reel

NCV303LSN16T1G

ON Semiconductor Supervisory Circuits VOLTG SUP 1.6V AUTO

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 : 4043
Ship by Thu. 28 Aug to Mon. 01 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 0.1386

Multiples of: 1

Voltage Detectors

Ncv303

Reel

APX803L20-36SA-7

Supervisory Circuits 3.6V 220ms Reset Generator

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 : 4028
Ship by Thu. 28 Aug to Mon. 01 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 0.1034

Multiples of: 1

Cut Tape

DIO706RCS8

Supervisory Circuits Low Power Microprocessor Reset Circuit (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.

Dioo

Availability : 4024
Ship by Thu. 28 Aug to Mon. 01 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 0.176

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

2.63 V

1 Input

Active Low

Manual Reset

watchdog

200 ms

5.25 V

- 40 C

+ 85 C

Reel

Hot

MCP111T-240ELB

Microchip Technology Supervisory Circuits Open Drain

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 : 4014
Ship by Thu. 28 Aug to Mon. 01 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 0.3289

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

2.32 V

1 Input

No Manual Reset

no watchdog

5.5 V

- 40 C

+ 125 C

Mcp111

Reel

BD4726G-TR

ROHM Semiconductor Supervisory Circuits RESET DETEC VOLT 2.6V

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 : 4003
Ship by Thu. 28 Aug to Mon. 01 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 0.2687

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 5

2.6 V

1 Input

Open Collectors

No Manual Reset

no watchdog

No Backup

- 40 C

+ 75 C

1 %

Bd47

Reel

BD45451G-TR

Supervisory Circuits RESET DETEC VOLT 4.5V

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 : 4003
Ship by Thu. 28 Aug to Mon. 01 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 0.3036

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

4.5 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

100 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

TLV840CADL14DBVR

Supervisory Circuits Low-voltage supervisor with adjustable-reset time delay and manual reset 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 : 4001
Ship by Thu. 28 Aug to Mon. 01 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 0.2277

Multiples of: 1

Voltage Supervisory

SMD/SMT

SOT - 23 - 5

1.4 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

40 us

6 V

- 40 C

+ 125 C

0.5 %

TLV840

Reel , Cut Tape

BD4825G-TR

Supervisory Circuits CMOS DETEC 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 : 3986
Ship by Mon. 15 Sep to Thu. 18 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 0.0987

Multiples of: 5

Voltage Monitors

Smd/Smt

SSOP - 5

2.5 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

10 V

- 40 C

+ 105 C

1 %

Bd48

Reel

Hot

TPS3808G30DBVR

Supervisory Circuits Programmable-Delay Supervisory

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 : 3981
Ship by Mon. 15 Sep to Thu. 18 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 0.3037

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 6

2.79 V

1 Input

Active High, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

300 ms

6.5 V

- 40 C

+ 125 C

0.5 %

Tps3808g30

Reel

S-80827CNPF-B8MTFU

Supervisory Circuits Voltage Detector 0.8uA 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 : 3964
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025