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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	Output Type
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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

TPS3808G33DBVR

Supervisory Circuits Programmable-Delay Supervisory

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 : 15253
Ship by Mon. 21 Jul to Thu. 24 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.1631

Multiples of: 5

Voltage Supervisory

Smd/Smt

SOT - 23 - 6

3.07 V

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

300 ms

6.5 V

- 40 C

+ 125 C

0.5 %

Tps3808g33

Reel

APX803-44SAG-7

Processor Supervisor 4.38V 2.5V/3V/3.3V/5V 3-Pin SOT-23 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.

Diodes Incorporated

Availability : 4313
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.1113

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

4 Input

Open Collector / Drain

200 ms

5.5 V

- 40 C

+ 85 C

Apx803

Reel

RN5VD29AA-TR-FE

Supervisory Circuits Low Voltage Detector w/output 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.

Nisshinbo

Availability : 4313
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2677

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 5

2.9 V

1 Input

Cmos, Open Drain

No Manual Reset

no watchdog

Backup

10 V

- 40 C

+ 85 C

2.5 %

Rn5vd

Cut Tape

BU4210FVE-TR

Supervisory Circuits LOW VOLT DETECT VOLT 1.2V

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 : 4305
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3117

Multiples of: 1

Voltage Monitors

Smd/Smt

VSOF - 5

1 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

adjustable

7 V

- 40 C

+ 125 C

1 %

Bu42

Reel

TL7757CDR

Supervisor Open Drain or Open Collector 1 Channel 8-SOIC

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 : 4289
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.318

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

4.55 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

7 V

0 C

+ 70 C

Tl7757

Reel

MCP1321T-20LI/OT

Supervisory Circuits Active low Open-drain + Active high P-P, WDI (WDI = 1600ms, reset delay = 200ms, Vtrpd - 2.0V)

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.

Microchip

Availability : 4258
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.7425

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2 V

1 Input

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

No Manual Reset

watchdog

No Backup

1600 ms

5.5 V

- 40 C

+ 125 C

Mcp1321

MAX810SQ293T1G

Supervisory Circuits ANA 2.93V 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 : 4222
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.2302

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

2.93 V

1 Input

Active High

No Manual Reset

no watchdog

No Backup

460 ms

5.5 V

- 40 C

+ 105 C

Max810

Cut Tape

LP3470IM5-2.63/NOPB

Supervisor Open Drain or Open Collector 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.

Texas Instruments

Availability : 4208
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 1.284

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.63 V

1 Input

Active Low, Open Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

2 ms

5.5 V

- 40 C

+ 85 C

1 %

Lp3470

Reel

MIC2777-31YM5-TR

Supervisory Circuits Dual Voltage Supervisor with 0.3V and 3.09V Thresholds, Active-High and Active-L

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 : 4207
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.8008

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23

Mic2777

Reel

MCP112T-240ETT

Microchip Technology Supervisory Circuits 1uA Sup P-P Act 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 : 4195
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3817

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.32 V

1 Input

No Manual Reset

no watchdog

5.5 V

- 40 C

+ 125 C

Mcp112

Reel

MIC6315-29D3UY-TR

Supervisory Circuits Reset Generator, Active Low, 2.93V VTH, Manual Reset, SOT-143 - 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 : 4181
Ship by Mon. 07 Jul to Fri. 11 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3068

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 143 - 4

2.93 V

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

5.5 V

- 40 C

+ 85 C

Mic6315

Reel

TPS3895ADRYR

Supervisory Circuits Sgl Ch,Ultra Small, Adj Sup 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.

Texas Instruments

Availability : 4138
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3784

Multiples of: 1

Voltage Supervisory

Smd/Smt

SON - 6

Adj

1 Input

Active High, Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

190 ms

6.5 V

- 40 C

+ 125 C

1 %

Tps3895

Reel

BD45262G-TR

Supervisor Open Drain or Open Collector 1 Channel 5-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 : 4122
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.3124

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.6 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

MP6411GS-33-Z

Supervisory Circuits Fixed 3.3V Windowed Watchdog Timer

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.

Monolithic Power Systems

Availability : 4122
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.945

Multiples of: 1

Cut Tape

MCP1320T-46LE/OT

Supervisory Circuits Active low OD

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 : 4119
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.7425

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2 v to 4.7 V

1 Input

Active Low, Open Drain

Manual Reset

Watchdog

watchdog

No Backup

2240 ms

5.5 V

- 40 C

+ 125 C

Mcp1320

Reel

TPS3820-33QDBVRQ1

Supervisory Circuits Processor Sup. 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 : 4107
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.9108

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 5

2.93 V

1 Input

Push - Pull

Manual Reset

Watchdog

watchdog

No Backup

25 ms

5.5 V

- 40 C

+ 125 C

Tps3820 - 33 - Q1

Aec - Q100

Reel

MCP1321T-29LE/OT

Supervisor Integrated Circuit; power on reset monitor (PoR)

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 : 4106
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.7425

Multiples of: 1

TPS3307-33DR

Supervisory Circuits Triple Processor Supervisory 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 : 4084
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 1.872

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

3.3 V , 5 V

3 Input

Push - Pull

Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

6 V

- 40 C

+ 85 C

Tps3307 - 33

Reel

TPS3851H30EDRBR

Supervisory Circuits High-Accuracy Voltage Supervisor With Integrated Watchdog Timer 8-SON -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 : 4079
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025

July 2025
	S	M	T	W	T	F	S
27	29	30	1	2	3	4	5
28	6	7	8	9	10	11	12
29	13	14	15	16	17	18	19
30	20	21	22	23	24	25	26
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9

USD 0.605

Multiples of: 1

Voltage Supervisory

Smd/Smt

SON - 8

3 V

1 Input

Active - Low,Open - Drain

Manual Reset

watchdog

5 V

- 40 C

+ 125 C

1 %

Tps3851

Cut Tape

MIC2775-28YM5-TR

Supervisory Circuits Single Voltage Supervisor with Dual Active-High and Low Push-Pull Outputs, Manua

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 : 4068
Ship by Thu. 03 Jul to Mon. 07 Jul

July 2025