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

Enable Smart Filtering (Note: Disable Smart Filtering for quicker results)

Select	Filter Name
	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
	Accuracy
	Series
	Qualification
	Packaging

Sorting

Sort Column:

Sort Direction:

First

...

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

JY803-293NRX

1.2V~7.5V 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.

Shenzhen JingYang

Availability : 5781
Ship by Thu. 30 Oct to Wed. 05 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 0.0386

Multiples of: 10

BU46K402G-TL

Supervisory Circuits IC Vtg 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.

ROHM

Availability : 5771
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.3094

Multiples of: 1

Voltage Detectors

Smd/Smt

SSOP - 3

4 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

200 ms

6 V

- 40 C

+ 105 C

1 %

Bu46k402g

Reel

NCV303LSN11T1G

Supervisory Circuits VDETECTOR W PROG DLY 1.1V

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 : 5771
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.3622

Multiples of: 1

Voltage Detectors

Ncp303

Aec - Q100

Cut Tape

BD70H12G-2CTR

Supervisory Circuits MOS TRANSISTORS

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 : 5766
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.3578

Multiples of: 1

Reel , Cut Tape

BU4227G-TR

ROHM Semiconductor 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 : 5762
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.2175

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.7 V

1 Input

Open Drain

No Manual Reset

no watchdog

No Backup

adjustable

7 V

- 40 C

+ 125 C

1 %

Bu42

Reel

BD71L4LHFV-1GTR

Supervisory Circuits CMOS Over Voltage Detector IC

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 : 5756
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.2408

Multiples of: 1

Voltage Detectors

Smd/Smt

HVSOF - 5

4.05 V

1 Input

Cmos

No Manual Reset

- 40 C

+ 85 C

0.8 %

Cut Tape

BD52E28G-MTR

Supervisory Circuits VOLTAGE DETECTOR WADJ 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 : 5755
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.2911

Multiples of: 1

Voltage Detectors

SMD/SMT

SSOP - 5

2.8 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

TPS3840PL25DBVRQ1

Supervisory Circuits Automotive high-input voltage supervisor with manual reset and programmable-reset time delay 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 : 5753
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.4404

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 V

1 Input

Active Low, Push - Pull

Manual Reset

no watchdog

Backup

619 ms

10 V

- 40 C

+ 125 C

1 %

Tps3840

Aec - Q100

Cut Tape

ISL88002IE29Z-T

Supervisory Circuits LW PWR VAGE SUPERVIS PUSH-PULL /RST 2 92V

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.

Renesas

Availability : 5752
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.945

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

2.92 V

1 Input

Open Drain

No Manual Reset

no watchdog

190 ms

5.5 V

- 40 C

+ 85 C

1.2 %

Isl88002

DIO6810RST3

Supervisory Circuits Ultra 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 : 5744
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.0803

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.63 V

1 Input

Active High, Cmos

no watchdog

240 ms

5.5 V

- 40 C

+ 85 C

Reel

APX803D-29SRG-7

Supervisory Circuits 3-Pin MPU Reset 30uA 2.5V, 3V, 3.3V, 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.

Diodes Incorporated

Availability : 5736
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.1188

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23R

2.5 v , 3 v , 3.3 v , 5 v

3 Input

Active Low, Open Drain

3.3 ms

5.5 V

+ 85 C

Apx803

Reel

TPS3839G18DQNR

Texas Instruments Supervisory Circuits Ult-Lo 150nA Ult-Sm Vtg 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.

Texas Instruments

Availability : 5736
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.3465

Multiples of: 1

Voltage Supervisory

Smd/Smt

X2SON - 4

0.9 V

1 Input

Active Low, Push - Pull

No Manual Reset

no watchdog

No Backup

200 ms

6.5 V

- 40 C

+ 85 C

Tps3839g18

Reel

MCP1316T-27LE/OT

Supervisory Circuits Active low P-P WDI MR WDI = 1600ms reset delay = 200ms Vtrpd - 2.7V

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 : 5717
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.7762

Multiples of: 1

SOT - 23 - 5

Mcp1316

Cut Tape

BD4837FVE-TR

Supervisor Open Drain or Open Collector 1 Channel 5-VSOF

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 : 5693
Ship by Thu. 30 Oct to Wed. 05 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 0.1053

Multiples of: 5

Voltage Monitors

Smd/Smt

VSOF - 5

3.7 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

10 V

- 40 C

+ 105 C

1 %

Bd48

Reel

BD5209G-1TR

Supervisory Circuits 0.9V ADJ DELAY VOLTAGE 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 : 5679
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.1271

Multiples of: 1

Voltage Detector

SMD/SMT

SSOP - 5

900 mV

1 Input

Open Drain

No Manual Reset

No Watchdog

No Backup

7 V

- 40 C

+ 85 C

1 %

Reel , Cut Tape

NCP803SN293D1T1G

Supervisory Circuits ANA 2.93V MCROPROC 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 : 5672
Ship by Thu. 30 Oct to Wed. 05 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 0.1956

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

1.2 v to 4.9 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

3.3 ms

5.5 V

- 40 C

+ 105 C

Ncp803

Reel

APX803-46SRG-7

Supervisory Circuits LINEAR REGULATOR VOLT SPVSR,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.

Diodes Incorporated

Availability : 5670
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.1188

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23R - 3

4 Input

Open Collector / Drain

No Manual Reset

no watchdog

No Backup

200 ms

5.5 V

- 40 C

+ 85 C

Apx803

Reel

MIC826YYMT TR

Supervisory Circuits Voltage Supervisor Watchdog/Dual Output

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 : 5668
Ship by Tue. 28 Oct to Thu. 30 Oct

October 2025

October 2025
	S	M	T	W	T	F	S
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11
42	12	13	14	15	16	17	18
43	19	20	21	22	23	24	25
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8

USD 0.3377

Multiples of: 1

Voltage Supervisory

Smd/Smt

TDFN - 6

1.8 v to 5 V

1 Input

Active High, Active Low, Push - Pull

Manual Reset

Watchdog

watchdog

No Backup

10 us

5 V

- 40 C

+ 125 C

Mic826

Reel

TPAX809RS3

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 : 5650
Ship by Thu. 30 Oct to Wed. 05 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 0.0413

Multiples of: 5

BD49L30G-TL

Voltage Detector 3-Pin SSOP 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.

ROHM

Availability : 0

USD 0.1638

Multiples of: 1

Surface Mount

3.03 V

Tape And Reel