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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	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
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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

TPS3510DRG4

Texas Instruments Supervisory Circuits 3.5V Pwr Supply Mntr

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 : 1955
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.6203

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

3.3 v , 5 v , 12 V

3 Input

Open Collector / Drain

No Manual Reset

no watchdog

15 V

- 40 C

+ 85 C

Tps3510

Reel

Hot

MCP130-450DI/TO

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 : 1949
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.2982

Multiples of: 50

BD53E33G-TR

Supervisor Push-Pull, Totem Pole 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 : 1947
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.192

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 5

3.3 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

adjustable

10 V

- 40 C

+ 105 C

1 %

Bd52(53)Exxg

Cut Tape

BU4812G-TR

Supervisory Circuits IC CMOS VOLT DETECT

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 : 1943
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.1795

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 5

1.2 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4812g

Reel

Hot

MCP120-315DI/TO

Supervisory Circuits Open Drain 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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.3188

Multiples of: 1

Voltage Supervisory

Through Hole

TO - 92 - 3

3 v , 3.3 v , 5 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

350 ms

5.5 V

- 40 C

+ 85 C

Bulk

S-80840CNUA-B8ZT2G

Supervisory Circuits 4.0V 0.9uA N-Ch Open

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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.3771

Multiples of: 1000

Voltage Detectors

Smd/Smt

SOT - 89 - 3

4 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

adjustable

10 V

- 40 C

+ 85 C

S - 808

Cut Tape

S-80842CLUA-B63T2G

Supervisory Circuits 4.2V 0.9uA CMOS Out

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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.4148

Multiples of: 1000

Voltage Detectors

Smd/Smt

SOT - 89 - 3

4.2 V

1 Input

No Manual Reset

no watchdog

10 V

- 40 C

+ 85 C

2 %

S - 808

Cut Tape

MCP130-475FI/TO

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 : 1940
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.4741

Multiples of: 1

MCP111-475E/TO

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 : 1940
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.4896

Multiples of: 1

Voltage Supervisory

Through Hole

TO - 92 - 3

4.63 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 125 C

Mcp111

Bulk

S-80843CNY-T-G

Volt Supervisor Detect 0.8V to 6V 3-Pin TO-92 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.

Ablic

Availability : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.5192

Multiples of: 1

MCP102-450E/TO

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 : 1940
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.5225

Multiples of: 1

Voltage Supervisory

Through Hole

TO - 92 - 3

4.38 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 125 C

Mcp102

Bulk

S-80840CNY-B2-U

Supervisory Circuits 4.0V 0.9uA N-Ch Open

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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.5868

Multiples of: 50

Voltage Detectors

Through Hole

TO - 92HF - 3

4 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

adjustable

10 V

- 40 C

+ 85 C

Bulk

TC54VC4102EMB713

Supervisory Circuits 4.1vVtg Det 2% Tol.

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 : 1940
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.675

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 89 - 3

1.1 v to 6 V

1 Input

No Manual Reset

No Watchdog

10 V

- 40 C

+ 85 C

Reel

S-873042EUP-AMDT2G

Supervisory Circuits Combo Voltage Detec/ Voltage Reg, 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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.692

Multiples of: 1000

Voltage Detectors

Smd/Smt

SOT - 89 - 5

- 40 C

+ 85 C

Cut Tape

STM6904PWEDS6F

Supervisory Circuits Quad Quint Ultra-Low Current Multi Volt

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 : 1940
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.7094

Multiples of: 1

Voltage Supervisory

Smd/Smt

TSSOP - 8

2.866 v , 1.683 V

4 Input

Manual Reset

No Watchdog

no watchdog

5.5 V

- 40 C

+ 85 C

Stm6904

Reel

TLC7733IPWRG4

Supervisory Circuits Sngl SVS f/3.3V Sys w/Prg Time 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.

Texas Instruments

Availability : 1940
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.996

Multiples of: 1

Voltage Supervisory

Smd/Smt

TSSOP - 8

5 V

1 Input

Push - Pull

No Manual Reset

no watchdog

adjustable

6 V

- 40 C

+ 85 C

Tlc7733

Reel

R3118N421C-TR-FE

Supervisory Circuits Low Voltage Detector w/SENSE pin

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 : 1939
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.3889

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 5

4.2 V

1 Input

Cmos

No Manual Reset

no watchdog

Backup

80 us

6 V

- 40 C

+ 85 C

1.5 %

R3118n

Reel

R3500S009A-E2-FE

Supervisory Circuits 42V Input 4ch Window Voltage Detector with Diagnostic Function

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 : 1939
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 2.3868

Multiples of: 1

Voltage Detectors

SMD/SMT

HSOP - 18

916 mV to 3.587 V

4 Input

Open Drain

Manual Reset

No Watchdog

No Backup

4 ms

42 V

- 40 C

+ 105 C

0.5 %

R3500S

Reel , Cut Tape

STM708RM6F

Supervisory Circuits 4.38V Reset Suprvsr

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 : 1938
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

USD 0.6902

Multiples of: 1

Voltage Supervisory

Smd/Smt

SO - 8

1 v to 5.5 V

1 Input

Active High, Active Low

Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 85 C

Stm708r

Reel

RT9807-30GB

Supervisory Circuits Micro-Power Voltage Detectors with Manual 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.

Richtek

Availability : 1936
Ship by Wed. 19 Nov to Fri. 21 Nov

November 2025