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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	Type
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	Output Voltage
	Package / Case
	Threshold Voltage
	Number of Inputs Monitored
	Output Type
	Manual Reset
	Watchdog
	Watchdog Timers
	Battery Backup Switching
	Reset Delay Time
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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

BD4950G-TR

Supervisory Circuits CMOS DETEC VOLT 5.0V

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.

ROHM

Availability : 11440
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 0.1828

Multiples of: 3000

Voltage Monitors

Smd/Smt

SSOP - 5

5 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd49

Reel

APX803-23SAG-7

Supervisory Circuits LINEAR REGULATOR VOLT SPVSR,2.25V

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 : 11415
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 - 23 - 3

4 Input

Open Collector / Drain

200 ms

5.5 V

- 40 C

+ 85 C

Apx803

Reel

ISL88002IE29Z-TK

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 : 11102
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

1.8 v to 5.5 V

1 Input

Open Drain

No Manual Reset

No Watchdog

no watchdog

190 ms

5.5 V

- 40 C

+ 85 C

1.2 %

Isl88002

Reel

TPS3619-33DGKR

Supervisory Circuits Battery-Backup for RAM Retention

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 : 10851
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 1.2765

Multiples of: 1

Voltage Supervisory

Smd/Smt

MSOP - 8

3.3 v , 5 V

1 Input

Push - Pull

Manual Reset

No Watchdog

no watchdog

Backup

100 ms

5.5 V

- 40 C

+ 85 C

Tps3619 - 33

Reel

TPS3808G15DBVR

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 : 10727
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 0.7953

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 6

1.4 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 %

Tps3808g15

Reel

MIC706TMY-TR

Supervisory Circuits P Supervisor, Watchdog Timer, 3.08V VTH, SOIC-08

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 : 10593
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 0.66

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

Mic706

Reel

UM803RS

SOT-23-3 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.

Union

Availability : 10550
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 0.0977

Multiples of: 5

BD4931G-TR

ROHM Semiconductor Supervisory Circuits CMOS DETEC VOLT 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.

ROHM

Availability : 10306
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 0.1533

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

3.1 V

1 Input

Cmos

No Manual Reset

no watchdog

No Backup

- 40 C

+ 105 C

1 %

Bd49

Reel

CAT853TTBI-GT3

Supervisory Circuits SUP OPEN DRAIN 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.

ON Semiconductor

Availability : 10296
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 0.3645

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23 - 3

3.3 v , 5 V

1 Input

Open Collector / Drain

No Manual Reset

No Watchdog

no watchdog

No Backup

240 ms

5.5 V

- 40 C

+ 85 C

Cat853

Reel

R3200K001B-TR

Supervisory Circuits Reset Timer 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.

Nisshinbo

Availability : 10234
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 0.4882

Multiples of: 1

Voltage Sequencers

Smd/Smt

DFN - 2020 - 8B

1 Input

Cmos, Open Drain

No Manual Reset

no watchdog

No Backup

11.25 s

5.5 V

- 40 C

+ 85 C

10 %

R3200k

Reel

TLC7733IDRG4

Supervisory Circuits Sngl SVS f/3.3V Sys w/Prg Time 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.

Texas Instruments

Availability : 10201
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 1.0281

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOIC - 8

5 V

1 Input

Push - Pull

No Manual Reset

no watchdog

adjustable

6 V

- 40 C

+ 85 C

Tlc7733

Reel

TCM809JENB713

Supervisory Circuits Microprocessor 40V

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 : 10114
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 0.2647

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23B - 3

2.5 v , 3 v , 3.3 v , 5 v

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

560 ms

5.5 V

- 40 C

+ 85 C

Tcm809

Reel

BD45272G-TR

Supervisory Circuits RESET DETEC VOLT 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.

ROHM

Availability : 10033
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 0.3136

Multiples of: 1

Voltage Monitors

Smd/Smt

SSOP - 5

2.7 V

1 Input

Open Drain

Manual Reset

No Watchdog

no watchdog

No Backup

200 ms

10 V

- 40 C

+ 105 C

1 %

Bd45

Reel

TPS3852G33DRBR

Supervisory Circuits High-accuracy voltage supervisor with programmable window 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 : 10005
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 1.1051

Multiples of: 1

Voltage Supervisory

Smd/Smt

VSON - 8

3.07 v , 3.17 V

1 Input

Active - Low,Open - Drain

Manual Reset

watchdog

No Backup

200 ms

6.5 V

- 40 C

+ 125 C

0.8 %

Tps3852

Cut Tape

TCM809SVNB713

Supervisory Circuits Microprocessor 2.93V

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 : 9891
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 0.2563

Multiples of: 1

Voltage Supervisory

Smd/Smt

SOT - 23B - 3

2.5 V , 3 V , 3.3 V , 5 V

1 Input

Active Low, Push - Pull

No Manual Reset

No Watchdog

no watchdog

No Backup

560 ms

5.5 V

- 40 C

+ 125 C

Tcm809

Reel

MIC803-40D2VC3-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 : 9834
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 0.2999

Multiples of: 1

Voltage Supervisory

Smd/Smt

SC - 70 - 3

1 Input

Open Collector / Drain

Manual Reset

no watchdog

No Backup

15 us

5.5 V

- 40 C

+ 125 C

Mic803

Reel

TPS3703F6050DSER

Supervisory Circuits High-accuracy window supervisor with reset time delay 6-WSON -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 : 9794
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 1.3327

Multiples of: 1

Voltage Supervisory

SMD/SMT

WSON - 6

500 mV

1 Input

Active Low, Open Drain

Manual Reset

No Watchdog

No Backup

20 ms

5.5 V

- 40 C

+ 125 C

0.25 %

TPS3703

Reel , Cut Tape

S-80845CNY-T-G

Volt Supervisor Detect 0.8V to 6V 3-Pin TO-92 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.

Ablic

Availability : 9702
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 0.4758

Multiples of: 1

BD5229NVX-2CTL

Supervisory Circuits NANO ENERGY, 2.9V, ADJUSTABLE

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 : 9700
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 0.3784

Multiples of: 1

Voltage Detectors

SMD/SMT

SSON - 4

Open Drain

No Manual Reset

No Watchdog

No Backup

3.1 V

- 40 C

+ 125 C

2.5 %

AEC - Q100

Reel , Cut Tape

TC54VN2902ECB713

Processor Supervisor 2.9V 1 Open Drain 3-Pin SOT-23A 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.

Microchip

Availability : 9520
Ship by Wed. 02 Jul to Fri. 04 Jul

July 2025