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

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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

CAT811STBI-GT3-MS

SOT-143 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.

MSKSEMI

Availability : 5727
Ship by Mon. 15 Sep to Thu. 18 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.0972

Multiples of: 5

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.7762

Multiples of: 1

SOT - 23 - 5

Mcp1316

Cut Tape

BU4920G-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 : 5713
Ship by Mon. 01 Sep to Fri. 05 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.1268

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2 V

1 Input

Cmos

No Manual Reset

No Watchdog

no watchdog

No Backup

7 V

- 40 C

+ 125 C

1 %

Bu49

Reel

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 Mon. 15 Sep to Thu. 18 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Mon. 01 Sep to Fri. 05 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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 Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

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

MIC803-40D2VM3-TR

Supervisory Circuits 3-Pin Microprocessor Supervisor Circuit w/ Open-Drain Reset 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 : 5658
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.2464

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

1 Input

Open Collector / Drain

Manual Reset

No Watchdog

no watchdog

No Backup

15 us

5.5 V

- 40 C

+ 125 C

Mic803

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 Mon. 15 Sep to Thu. 18 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.0413

Multiples of: 5

BD5211G-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 : 5624
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.1952

Multiples of: 1

Voltage Detectors

SMD/SMT

SSOP - 5

1.1 V

1 Input

Open Drain

No Manual Reset

No Watchdog

No Backup

55.5 ms

6 V

- 40 C

+ 105 C

2 %

BD52xxG - M

AEC - Q100

Reel , Cut Tape

MCP1317T-31AE/OT

Microchip Technology Active high P-P, WDI, MR (WDI = 6.3ms, reset delay = 1.6ms, Vtrpd - 3.1V)

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.

Microchip

Availability : 5619
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.8116

Multiples of: 1

SOT - 23 - 5

Mcp1317

Cut Tape

TPS3801I50DCKRG4

Supervisory Circuits Processor Sprvisry 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 : 5610
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.4905

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 5

1.8 v , 2.5 v , 2.7 v , 3 v , 3.3 v , 5 v , Adj

1 Input

Push - Pull

Manual Reset

no watchdog

200 ms

6 V

- 40 C

+ 85 C

Tps3801i50

Reel

MCP131T-240E/TT

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 : 5609
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.5463

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.32 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

120 ms

5.5 V

- 40 C

+ 125 C

Mcp131

Reel

MAX811T

SOT-143 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 : 5606
Ship by Mon. 15 Sep to Thu. 18 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.0748

Multiples of: 5

NCP303LSN49T1G

Supervisory Circuits ANA UNDERVOLT DETECT 4.9

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 : 5596
Ship by Mon. 01 Sep to Fri. 05 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 0.2336

Multiples of: 1

Voltage Monitors

Smd/Smt

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

4.9 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

Backup

10 V

- 40 C

+ 125 C

2 %

Ncp303

Reel

BD49E28G-MTR

Supervisory Circuits 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.

ROHM

Availability : 5578
Ship by Thu. 28 Aug to Mon. 01 Sep

September 2025