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

STM1815TWX7F

Supervisory Circuits 3.06VRST Active Low Push-Pull 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.

STMicroelectronics

Availability : 5820
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 0.4645

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 v , 3.3 v , 5 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 105 C

Stm1815

Reel

MIC809-5SUY-TR

Supervisory Circuits 3-Pin Microprocessor Reset Circuit with Push-Pull Active-Low Output, 2.93V Threshold, 30ms reset pulse

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 : 5820
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 0.5063

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

Mic809

Reel

STM812TW16F

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 : 5820
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 0.5187

Multiples of: 3000

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 Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm812

Reel

STWD100NWWY3F

Supervisory Circuits CONDITIONING & INTERFACES

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 : 5820
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 0.5746

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

1 Input

Open Drain

No Manual Reset

Watchdog

watchdog

No Backup

5.5 V

- 40 C

+ 125 C

Stwd100

Cut Tape

STM1831L24WY6F

Supervisory Circuits 100 mV Voltage Sense 1.6V to 5.7V 0.8uA

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 : 5820
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 0.6423

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

1.6 v to 5.7 V

1 Input

Active Low

Manual Reset

No Watchdog

Backup

55 us

6 V

- 40 C

+ 85 C

Stm1831l

Reel

STM1817TWX7F

Supervisory Circuits 3.06VRST Active High Push-Pull 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.

STMicroelectronics

Availability : 5820
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 0.6505

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 v , 3.3 v , 5 V

1 Input

Active High, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 105 C

Stm1817

Reel

MC34064SN-5T1G

Supervisory Circuits 4.59V UnderVoltage Sensing 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.

ON Semiconductor

Availability : 5820
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 0.7379

Multiples of: 1

Voltage Supervisory

Smd/Smt

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

4.6 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

adjustable

6.5 V

0 C

+ 70 C

Mc34064

Reel

CAT1025WI-28-GT3

Voltage Monitor 3V/3.3V/5V 8-Pin SOIC N 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.

ON Semiconductor

Availability : 5820
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 0.7205

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8 Wide

3 v , 3.3 v , 5 V

1 Input

Manual Reset

no watchdog

5.5 V

- 40 C

+ 85 C

Cat1025

Reel

STM6825TWY6F

Supervisory Circuits 3.000 to 3.150VRST Manual Reset Input

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 : 5820
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 0.7805

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active High, Active Low, Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6825

Reel

STM6322TWY6F

Supervisory Circuits 3.000 to 3.150VRST Manual Reset Input

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 : 5820
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 0.7821

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 v , 3 v , 3.3 v , 5 v

1 Input

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

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6322

Reel

MCP1318MT-29LEOT

Microchip Technology Supervisory Circuits Active 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 : 5820
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 0.8178

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

No Backup

2240 ms

5.5 V

- 40 C

+ 125 C

Mcp1318

Reel

STM6825MWY6F

STMicroelectronics Supervisory Circuits 4.270 to 4.490VRST Manual Reset Input

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 : 5820
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 0.7346

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active High, Active Low, Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6825

Reel

STM1811LWX7F

Supervisory Circuits 4.62VRST Active Low Open Drain 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.

STMicroelectronics

Availability : 5820
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 1.038

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 v , 3.3 v , 5 V

3 Input

Open Collector / Drain

Manual Reset

No Watchdog

No Backup

2 us

5.5 V

- 40 C

+ 105 C

Stm1811

Reel

STM6519APARUB6F

Supervisory Circuits 4-Pin Smart Reset IC 2V to 5.5V 1uA

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 : 5820
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 1.1033

Multiples of: 3000

Voltage Supervisory

Smd/Smt

UDFN - 6L

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

7.5 s

5.5 V

- 40 C

+ 85 C

Stm6519

Reel

STM1810MWX7F

Supervisory Circuits 4.37VRST Active Low Push-Pull 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.

STMicroelectronics

Availability : 5820
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 1.111

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 v , 3.3 v , 5 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

5.5 V

- 40 C

+ 105 C

Stm1810

Reel

BD39042MUF-CE2

Supervisory Circuits SUPERVISOR IC QUAD POWER

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 : 5820
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 1.3302

Multiples of: 1

Voltage Detector

SMD/SMT

VQFN - 16

4 Input

Open Drain

No Manual Reset

Watchdog

No Backup

10 ms

5.5 V

- 40 C

+ 125 C

1.4 %

Reel , Cut Tape

STM6825LWY6F

STMicroelectronics Supervisory Circuits 5-Pin 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.

STMicroelectronics

Availability : 5820
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 1.5114

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active High, Active Low, Push - Pull

Manual Reset

No Watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6825

Reel

PT7M7809JTEX

Supervisory Circuits Watch Dog Manual Reset VoltageMonitor

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 : 5819
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 0.1001

Multiples of: 1

Cut Tape

STM6825SWY6F

Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-5

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 : 465
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 0.7134

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Push - Pull

Manual Reset

No Watchdog

No Backup

280 ms

7 V

- 40 C

+ 85 C

Stm6825

Reel

BD45255G-TR

ROHM Semiconductor Supervisory Circuits RESET DETEC VOLT 2.5V

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.

ROHM

Availability : 0

USD 0.4811

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.5 V

1 Input

Open Drain

No Manual Reset

no watchdog