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

TPS3840DL16DBVRQ1

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 : 12125
Ship by Thu. 03 Apr to Mon. 07 Apr

April 2025

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

USD 0.4895

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

1.6 V

1 Input

Active Low, Open Drain

Manual Reset

no watchdog

Backup

619 ms

10 V

- 40 C

+ 125 C

1 %

Tps3840

Aec - Q100

Cut Tape

TLV803EA29DBZR

Supervisory Circuits Low-power 3-pin voltage supervisor reset IC with active-low open-drain reset 3-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 : 12076
Ship by Thu. 03 Apr to Mon. 07 Apr

April 2025

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

USD 0.1526

Multiples of: 1

Cut Tape

APX803L20-29SA-7

Supervisory Circuits 2.9V, 220ms 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 : 12002
Ship by Thu. 03 Apr to Mon. 07 Apr

April 2025

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

USD 0.0935

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 3

2.9 V

1 Input

Active Low, Open Drain

No Manual Reset

no watchdog

No Backup

220 ms

5.5 V

- 40 C

+ 150 C

1.5 %

Apx803l

Cut Tape

NCP308SN180T1G

Processor Supervisor 1.67V 1.8V 6-Pin TSOP 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 : 11996
Ship by Mon. 21 Apr to Thu. 24 Apr

April 2025

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

USD 0.299

Multiples of: 1

Voltage Detectors

Ncp308

Reel

STM1061N29WX6F

Supervisory Circuits 2.9V Active Lo Open Drain 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.

STMicroelectronics

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.1394

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.9 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

6 V

- 40 C

+ 85 C

Stm1061

Reel

STM1001TWX6F

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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.2149

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 V , 3.3 V , 5 V

1 Input

Open Collector / Drain

Manual Reset

No Watchdog

No Backup

280 ms

7 V

- 40 C

+ 85 C

Stm1001

Reel

STM1061N26WX6F

Supervisory Circuits 2.6V Active Lo Open Drain 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.

STMicroelectronics

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.2349

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.6 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

6 V

- 40 C

+ 85 C

Stm1061

Reel

STM1816SWX7F

Supervisory Circuits 2.88VRST 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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.2527

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

Stm1816

Reel

NCP305LSQ24T1G

Supervisory Circuits 2.4V Detector w/Reset 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.

ON Semiconductor

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.2626

Multiples of: 1

Voltage Monitors

Smd/Smt

SC - 82AB - 4

2.4 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

Backup

10 V

- 40 C

+ 85 C

2 %

Ncp305

Reel

STM1061N25WX6F

Supervisory Circuits Lo Pwr Vltg 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.

STMicroelectronics

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.2229

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.5 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

6 V

- 40 C

+ 85 C

Stm1061

Reel

STM1061N16WX6F

Supervisory Circuits 1.6V Active Lo Open Drain 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.

STMicroelectronics

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.3735

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

1.6 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

6 V

- 40 C

+ 85 C

Stm1061

Reel

STM1061N23WX6F

Supervisory Circuits 2.3V Active Lo Open Drain 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.

STMicroelectronics

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.3915

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.3 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

6 V

- 40 C

+ 85 C

Stm1061

Reel

STM1001LWX6F

Supervisory Circuits Active Low Open Drain 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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.4404

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3 V , 3.3 V , 5 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm1001

Reel

NCV33161DMR2G

Supervisory Circuits AEC ANA UNI VOLT 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.

ON Semiconductor

Availability : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.4814

Multiples of: 4000

Voltage Monitors

Smd/Smt

MICRO - 8

2 v , 4 V

2 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

40 V

- 40 C

+ 125 C

2 %

Ncv33161

Aec - Q100

Reel

MC33164DM-3R2G

Supervisory Circuits 2.65V 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 : 11640
Ship by Thu. 03 Apr to Mon. 07 Apr

April 2025

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

USD 0.5014

Multiples of: 1

Voltage Supervisory

Smd/Smt

MSOP - 8

3 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

adjustable

10 V

- 40 C

+ 125 C

Mc33164

Reel

STM6824SWY6F

Supervisory Circuits Digital Switch Multi

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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.5415

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

No Manual Reset

Watchdog

watchdog

No Backup

280 ms

5.5 V

- 40 C

+ 85 C

Stm6824

Reel

STM6315RBW13F

Supervisory Circuits Open Drain Microprocessor 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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.5535

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

1 v to 5.5 V

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

30 ms

5.5 V

- 40 C

+ 125 C

1.8 %

Stm6315

Reel

STM6315RAW13F

STMicroelectronics Supervisory Circuits Open Drain Microprocessor 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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 0.8622

Multiples of: 3000

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

1 V To 5.5 V

1 Input

Active Low, Open Drain

Manual Reset

no watchdog

No Backup

1.5 ms

5.5 V

- 40 C

+ 125 C

1.8 %

Stm6315

Reel

2U3820-50QDBVRG4Q1

Supervisory Circuits Auto Cat Proc Super 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 : 11640
Ship by Mon. 07 Apr to Fri. 11 Apr

April 2025

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

USD 1.2374

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

4.55 V

1 Input

Active High, Active Low

Manual Reset

watchdog

No Backup

25 ms

5.5 V

- 40 C

+ 125 C

Tps3820 - 50 - Q1

Reel

STM6322RWY6F

Supervisory Circuits 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 : 0
Request Quote

USD 0.6687

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