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

MCP1321T-46LE/OT

Supervisory Circuits Act low OD Act high P-P

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 : 2662
Ship by Thu. 20 Nov to Wed. 26 Nov

November 2025

November 2025
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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 0.4049

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2 v to 4.7 V

1 Input

Active High, Active Low, Open Drain, Push - Pull

Manual Reset

Watchdog

watchdog

No Backup

2240 ms

5.5 V

- 40 C

+ 125 C

Mcp1321

Reel

MCP1316MT-26CE/OT

Microchip Technology Active low Open-Drain with Internal 4.7k Pull-up, WDI, MR (WDI = 1600ms, reset delay = 1.6ms, Vtrpd -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.

Microchip

Availability : 2662
Ship by Tue. 18 Nov to Thu. 20 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 0.5197

Multiples of: 1

SOT - 23 - 5

Mcp1316

Cut Tape

TPS35CA43DACDDFRQ1

Supervisory Circuits Automotive nano-quie scent-current precis

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 : 2659
Ship by Tue. 18 Nov to Thu. 20 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 1.7341

Multiples of: 1

Voltage Supervisory

SMD/SMT

TSOT - 23 - 8

1.05 V to 5.4 V

1 Input

Active Low, Open Drain, Push - Pull

Manual Reset

Watchdog

No Backup

6 V

- 40 C

+ 125 C

1.2 %

TPS35 - Q1

Reel , Cut Tape

TCM810LVLB713

Microchip Technology Supervisory Circuits Microprocessor 4.63V

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 : 2658
Ship by Tue. 18 Nov to Thu. 20 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 0.372

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

BU4826FVE-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 : 2656
Ship by Tue. 18 Nov to Thu. 20 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 0.2392

Multiples of: 1

Voltage Detectors

Smd/Smt

VSOF - 5

2.6 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4826fve

Cut Tape

BD4823FVE-TR

Supervisory Circuits CMOS 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 : 2652
Ship by Tue. 18 Nov to Thu. 20 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 0.242

Multiples of: 1

Voltage Monitors

Smd/Smt

VSOF - 5

2.3 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

10 V

- 40 C

+ 105 C

1 %

Bd48

Reel

STM812LW16F

Supervisor Push-Pull, Totem Pole 1 Channel SOT-143-4

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 : 2652
Ship by Tue. 18 Nov to Thu. 20 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 0.4598

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

3 v , 3.3 v , 5 V

1 Input

Active High, Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm812

Reel

LP3470A275DBVR

Supervisory Circuits Ultra-low-power active-low reset IC with programmable delay and 1% reset threshold 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 : 2651
Ship by Tue. 18 Nov to Thu. 20 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 0.7946

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.75 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

619 ms

10 V

- 40 C

+ 125 C

1 %

Lp3470a

Cut Tape

BD45482G-TR

ROHM Semiconductor Supervisory Circuits RESET DETEC VOLT 2.3V

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 : 2648
Ship by Thu. 20 Nov to Wed. 26 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 0.4625

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.3 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd45

Reel

NCP305LSQ26T1G

Supervisory Circuits ANA UNDERVOLT DETECT 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.

ON Semiconductor

Availability : 2646
Ship by Tue. 18 Nov to Thu. 20 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 0.1936

Multiples of: 1

Voltage Monitors

Smd/Smt

SC - 82AB - 4

2.6 V

1 Input

No Manual Reset

no watchdog

10 V

- 40 C

+ 85 C

2 %

Ncp305

Reel

BD5315G-2MTR

Supervisory Circuits LOW CURRENT CONSUMPTION VOLT D

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 : 2646
Ship by Tue. 18 Nov to Thu. 20 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 0.1952

Multiples of: 1

Voltage Detectors

SMD/SMT

SSOP - 5

1.5 V

1 Input

CMOS

No Manual Reset

No Watchdog

No Backup

55.5 ms

6 V

- 40 C

+ 105 C

2 %

BD53xxG - M

AEC - Q100

Reel , Cut Tape

BU4831F-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 : 2646
Ship by Tue. 18 Nov to Thu. 20 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 0.2512

Multiples of: 1

Voltage Detectors

Smd/Smt

SOP - 4

3.1 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4831f

Cut Tape

BU4314G-TR

Supervisory Circuits CMOS LOW VOLT DETEC

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 : 2645
Ship by Tue. 18 Nov to Thu. 20 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 0.2175

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 5

1.4 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

adjustable

7 V

- 40 C

+ 125 C

1 %

Bu43

Cut Tape

MCP1316T-26JE/OT

Supervisory Circuits Active low P-P, WDI, MR (WDI = 6.3ms, reset delay = 200ms, Vtrpd - 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.

Microchip

Availability : 2645
Ship by Tue. 18 Nov to Thu. 20 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 0.8178

Multiples of: 1

Mcp1316

Reel

XC61CC3002MR-G

Supervisory Circuits LowQuiescent Current 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.

Torex Semiconductor

Availability : 2638
Ship by Thu. 20 Nov to Wed. 26 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 0.1215

Multiples of: 5

Voltage Detectors

Smd/Smt

SOT - 23 - 3

3 V

1 Input

Cmos

No Manual Reset

no watchdog

Backup

10 V

- 40 C

+ 85 C

2 %

BU4840G-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 : 2638
Ship by Tue. 18 Nov to Thu. 20 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 0.1906

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 5

4 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4840g

Reel

BD46301G-TR

ROHM Semiconductor Supervisory Circuits Voltage Detector w Fixed Delay Time

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 : 2638
Ship by Tue. 18 Nov to Thu. 20 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 0.3069

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

3 V

1 Input

Cmos

Manual Reset

no watchdog

No Backup

100 ms

10 V

- 40 C

+ 105 C

1 %

Bd46

Reel

TPS3825-50QDBVRQ1

Texas Instruments Supervisory Circuits Processor Sup Circuits

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 : 2638
Ship by Thu. 20 Nov to Wed. 26 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 1.3272

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

4.55 V

1 Input

Push - Pull

Manual Reset

no watchdog

No Backup

200 ms

5.5 V

- 40 C

+ 125 C

Tps3825 - 50 - Q1

Aec - Q100

Reel

APX803L05-32SA-7

Supervisory Circuits 3.2V 55ms 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 : 2633
Ship by Tue. 18 Nov to Thu. 20 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 0.1034

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 3

3.2 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

55 ms

5.5 V

- 40 C

+ 150 C

1.5 %

Apx803l

Cut Tape

BU4825F-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 : 2633
Ship by Thu. 20 Nov to Wed. 26 Nov

November 2025