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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	Output Type
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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

STM6719SFWB6F

Supervisory Circuits Triple Ultra-Lo Volt Open Drain 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.

STMicroelectronics

Availability : 200790
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.8158

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 6

0.8 v to 5.5 V

3 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6719

Reel

NCP305LSQ25T1G

Supervisory Circuits 2.5V Detector w/Reset 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.

ON Semiconductor

Availability : 199058
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2336

Multiples of: 1

Voltage Monitors

Smd/Smt

SC - 82AB - 4

2.5 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

Backup

10 V

- 40 C

+ 85 C

2 %

Ncp305

Reel

APX809S-26SA-7

Supervisory Circuits 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 : 125793
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.0935

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 3

2.63 V

1 Input

Active Low, Push - Pull

No Manual Reset

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 125 C

Apx809s/810S

Cut Tape

ASM811REUSF-T

Supply Voltage Supervisory 1.1V to 5.5V Automotive 4-Pin(3+Tab) SOT-143 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.

ON Semiconductor

Availability : 119859
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2304

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 143 - 3

Asm811reusf - T

Reel

NCP300LSN185T1G

Supervisory Circuits 1.85V Detector w/Reset 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.

ON Semiconductor

Availability : 113490
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3049

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 5 TH in (TSOP - 5)

1.85 V

1 Input

Active Low, Cmos

No Manual Reset

No Watchdog

no watchdog

Backup

10 V

- 40 C

+ 125 C

2 %

Ncp300

Reel

CAT809STBI-GT3

Supervisory Circuits Push-pull 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.

ON Semiconductor

Availability : 100069
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2046

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 85 C

Cat809

Reel

BD52E30G-MTR

Supervisory Circuits VOLTAGE DETECTOR W/ADJ DELAY

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 : 96783
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3334

Multiples of: 1

Voltage Detectors

SMD/SMT

SSOP - 5

3 V

1 Input

Open Drain

No Manual Reset

No Watchdog

No Backup

Programmable

10 V

- 40 C

+ 105 C

1 %

BD52ExxG - M

AEC - Q101

Reel , Cut Tape

MAX810SQ463T1G

ON Semiconductor Supervisory Circuits ANA 4.63V 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 : 88614
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2393

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

1.2 v to 4.9 V

1 Input

Push - Pull

No Manual Reset

no watchdog

No Backup

460 ms

5.5 V

- 40 C

+ 105 C

Max810

Reel

APX823-44W5G-7

Supervisory Circuits 1.1V-5.5V 4.38V 20mA

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 : 83080
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.1397

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 25 - 5

4.38 V

1 Input

Active Low

Manual Reset

Watchdog

watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Apx823

Reel

APX809S-46SA-7

Supervisory Circuits 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 : 71388
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.0935

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 3

4.63 V

1 Input

Active Low, Push - Pull

No Manual Reset

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 125 C

Apx809s/810S

Cut Tape

MAX809L

SOT-23 Monitors & Reset Circuits 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.

TECH PUBLIC

Availability : 70317
Ship by Fri. 18 Jul to Wed. 23 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.0432

Multiples of: 5

R3112N291A-TR-FE

Supervisory Circuits Low Voltage Detector w/output delay

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.

Nisshinbo

Availability : 66505
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.252

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 5

2.9 V

1 Input

Cmos, Open Drain

No Manual Reset

no watchdog

Backup

6 V

- 40 C

+ 85 C

2 %

R3112n

Reel

NCV809RTRG

Processor Supervisor 2.63V 1.2V to 4.9V Automotive 3-Pin SOT-23 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.

ON Semiconductor

Availability : 55390
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3073

Multiples of: 1

Voltage Supervisory

Ncv809

Aec - Q100

Reel

MCP120T-315I/TT

Supervisor Integrated Circuit; power on reset monitor (PoR)

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 : 55290
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3188

Multiples of: 3000

STM6779LWB6F

Supervisory Circuits Dual triple ultra Lo Vltg supervisor

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 : 55290
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.7551

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 6

0.8 v to 5.5 V

2 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6779

Reel

APX803S-29SA-7

Supervisory Circuits 2.93V, 240ms MPU 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.

Diodes Incorporated

Availability : 50125
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.0935

Multiples of: 1

Voltage Monitors

Smd/Smt

SOT - 23 - 3

2.93 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 85 C

Apx803s

Cut Tape

STM6519ALARUB6F

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

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 : 49470
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.4902

Multiples of: 3000

Voltage Supervisory

Smd/Smt

UDFN - 6L

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

6 s

5.5 V

- 40 C

+ 85 C

Stm6519

Reel

CAT809TTBI-GT3

Supervisory Circuits Push-pull 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.

ON Semiconductor

Availability : 8730
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2342

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.5 V , 3 V , 3.3 V , 5 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 85 C

Cat809

Reel

MC34164D-3R2G

Supervisory Circuits 2.65V UnderVoltage Sensing 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.

ON Semiconductor

Availability : 1967
Ship by Fri. 04 Jul to Thu. 10 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2626

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

3 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

adjustable

10 V

0 C

+ 70 C

Mc34164

Reel

STBP112CVDJ6F

Supervisory Circuits Overvoltage Protecti 28V N-Ch FET 170mOhm

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 : 0
Request Quote

USD 0.5412

Multiples of: 1

Voltage Monitors

Smd/Smt

TDFN - 8

28 V

- 40 C

+ 85 C

Stbp112

Reel