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

BD48K41G-TL

Supervisory Circuits Volt Det Open drain 4.1V SSOP3

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 : 2083
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 0.1298

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 3

4.1 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Cut Tape

TCM810TVLB713

Supervisor Push-Pull, Totem Pole 1 Channel SC-70-3

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 : 2080
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 0.3544

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

3.08 V

1 Input

Active High, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

560 ms

5.5 V

- 40 C

+ 125 C

Tcm810

Reel

VDA0820NTA

PMIC - Supervisors SOT-23 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.

AnaSem

Availability : 2075
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 0.0363

Multiples of: 10

BD4937FVE-TR

Supervisory Circuits CMOS DETEC VOLT 4.0V

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 : 2074
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 0.2245

Multiples of: 1

Voltage Monitors

Smd/Smt

VSOF - 5

4 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd49

Reel

SP706TCN-L/TR

Supervisory Circuits LOW PWR MICROPROCESSOR

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 : 2072
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 0.4147

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

3.08 V

1 Input

Active Low

Manual Reset

watchdog

No Backup

200 ms

5.5 V

0 C

+ 70 C

Sp706

Cut Tape

APX803L40-48SA-7

Supervisory Circuits 4.8V 450ms 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 : 2070
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 0.1034

Multiples of: 1

Cut Tape

TC1270ANMVCTTR

Supervisory Circuits 5Pin uP Reset Mon 4.38V Reset Thresh

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 : 2068
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 0.8111

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

1 v to 5.5 V

1 Input

Active Low, Open Drain

Manual Reset

no watchdog

5.5 V

- 40 C

+ 125 C

Tc1270a

Reel

Hot

BU4820G-TR

Supervisory Circuits VOLT DETECT .9V-4.8V 5PIN

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 : 2066
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 0.1242

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu48

Reel

Hot

BD48L45G-TL

Supervisor Open Drain or Open Collector 1 Channel 3-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 : 2064
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 0.1482

Multiples of: 1

Surface Mount

Tape And Reel

MAX809SQ463T1G

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 : 2063
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 0.1148

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 watchdog

No Backup

460 ms

5.5 V

- 40 C

+ 105 C

Max809

Reel

BD5343G-TR

ROHM Semiconductor 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 : 2063
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 0.2321

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

4.3 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

10 V

- 40 C

+ 105 C

1 %

Bd53

Reel

MIC6315-31D4UY TR

Supervisory Circuits Reset Generator, Active Low,4.63V VTH, Manual Reset, SOT-146 - 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 : 2060
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 0.4198

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

3 V , 3.3 V , 5 V

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

No Backup

0.5 us

5.5 V

- 40 C

+ 85 C

Mic6315

Reel

HX809T-3.08

SOT-23 Supervisor and Reset ICs 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.

hengjiaxing

Availability : 2056
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 0.0263

Multiples of: 10

BU4942G-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 : 2055
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 0.1482

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 5

4.2 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4942g

Cut Tape

APX809S-44SR-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 : 2054
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 0.1034

Multiples of: 1

Cut Tape

TL7705BCD

Supervisory Circuits 4.55V Monitor

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 : 2053
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 2.31

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

4.55 V

1 Input

Active - High,Active - Low,Open - Drain

Manual Reset

no watchdog

No Backup

programmable

18 V

- 40 C

+ 125 C

Tl7705b

Tube

BD4852G-TR

ROHM Semiconductor Supervisory Circuits CMOS DETEC VOLT 5.2V

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 : 2050
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 0.1815

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

5.2 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd48

Reel

BU4826F-TR

Supervisor Open Drain or Open Collector 1 Channel 4-SOP

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 : 2049
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 0.1724

Multiples of: 3000

Voltage Detectors

Smd/Smt

SOP - 4

2.6 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu4826f

Cut Tape

ADM706TARZ-REEL

power management specialized - pmic soic-8 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.

Analog Devices

Availability : 2029
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 0.4419

Multiples of: 1

STM1001RWX6F

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 : 1889
Ship by Fri. 21 Nov to Thu. 27 Nov

November 2025