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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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

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 Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
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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 0.2408

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 Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
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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 0.2911

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 Wed. 02 Jul to Fri. 04 Jul

July 2025

July 2025
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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 0.4404

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 Wed. 02 Jul to Fri. 04 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

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

APX809-46SAG-7

Supervisory Circuits 3-Pin Reset 200ms 1V-5.5V 4.63V 20mA

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 : 5747
Ship by Fri. 18 Jul to Wed. 23 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 0.085

Multiples of: 5

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active Low, Push - Pull

No Manual Reset

no watchdog

No Backup

200 ms

5.5 V

- 40 C

+ 85 C

Apx809/810

Cut Tape

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 Wed. 02 Jul to Fri. 04 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 0.3465

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 Fri. 18 Jul to Wed. 23 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 0.0972

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 Wed. 02 Jul to Fri. 04 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 0.7762

Multiples of: 1

SOT - 23 - 5

Mcp1316

Cut Tape

TPS3808G18DRVT

Supervisory Circuits Low Quies Crnt,Progr Delay Sup Crct

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 : 5698
Ship by Fri. 04 Jul to Thu. 10 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 1.0634

Multiples of: 250

Voltage Supervisory

Smd/Smt

WSON - 6

1.67 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 %

Tps3808g18

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 Fri. 18 Jul to Wed. 23 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 0.1053

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

LM3704XCMM-308/NOPB

Supervisory Circuits Microprocessor Supervisory Circuits with Power Fail Input, Low Line Output and Manual Reset 10-VSSOP -40 to 85

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 : 5682
Ship by Wed. 02 Jul to Fri. 04 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 1.0622

Multiples of: 1

Voltage Supervisory

Smd/Smt

MSOP

1 v to 5.5 V

1 Input

Active Low, Totem Pole

No Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

5.5 V

- 40 C

+ 85 C

Lm3704

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 Wed. 02 Jul to Fri. 04 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 0.1271

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 Fri. 04 Jul to Thu. 10 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 0.1956

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 Wed. 02 Jul to Fri. 04 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 0.1078

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

TPS3707-33DGNR

Texas Instruments Supervisory Circuits Processor with Power-Fail

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 : 5654
Ship by Wed. 02 Jul to Fri. 04 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 1.1928

Multiples of: 1

Voltage Supervisory

Smd/Smt

HVSSOP - 8

2.5 v , 3 v , 3.3 v , 5 v

2 Input

Push - Pull

Manual Reset

no watchdog

Backup

200 ms

6 V

- 40 C

+ 85 C

Tps3707 - 33

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 Fri. 18 Jul to Wed. 23 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 0.0413

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 Wed. 02 Jul to Fri. 04 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 0.1952

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

S-80833CNMC-B8ST2G

Supervisory Circuits 3.3V 1.3uA N-Ch Open

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.

Ablic

Availability : 5620
Ship by Wed. 02 Jul to Fri. 04 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 0.3696

Multiples of: 1

Voltage Detectors

Smd/Smt

SOT - 23 - 5

3.3 V

1 Input

No Manual Reset

no watchdog

adjustable

10 V

- 40 C

+ 85 C

2 %

S - 808

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 Wed. 02 Jul to Fri. 04 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 0.8116

Multiples of: 1

SOT - 23 - 5

Mcp1317

Cut Tape

TPS3803-01DCKR

Supervisory Circuits Adj 1.5V V 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.

Texas Instruments

Availability : 5607
Ship by Fri. 18 Jul to Wed. 23 Jul

July 2025