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We offer a broad range of voltage supervisors and voltage supervisor ICs from multiple manufacturers.

A voltage supervisor, or voltage supervisor IC, is a device that monitors or supervises a voltage rail and asserts a signal to enable, disable, or reset another device when that monitored rail falls below or rises above a predetermined threshold voltage. The devices are also known as supply voltage supervisors, voltage supervisory circuits, or voltage monitors.

We offer devices that can manage one to 16 channels. The multichannel types can sequence the supplies in any order at both power-up and power-down.

Voltage supervisors are available with threshold voltages from 4.675mV to 98V, and supply voltages from -10V minimum to 100V maximum. Delay times range from 0ms to 180s. Reset types include Active-High, Active-Low, Manual, Open Drain, and other options and combinations.

The devices are available with a wide choice of digital IC case types and pin counts, with single, pack, tape, reel, tray and tube packaging options. Operating temperatures range from -55°C minimum to 150°C maximum.

A number of devices that meet the AEC-Q100 failure mechanism based stress test qualification are offered for automotive applications.

Our voltage supervisor ICs are manufactured by Analog Devices, Diodes Inc., Micrel Semiconductors, Microchip, Onsemi, Renesas, Rohm, Seiko Instruments, ST Microelectronics, Texas Instruments, and others.

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Manufacturer Part No	Order Code	Description / Manufacturer	Availability	Price For	Price (Incl JCT)	Quantity	Reset Threshold Voltage Min	Reset Threshold Voltage - Min	Reset Threshold Voltage - Max	Reset Threshold Voltage Max	Reset Threshold Voltage Nom	Reset Threshold Voltage - Nom	No. of Monitored Voltages	Supply Voltage Min	Supply Voltage Max	Reset Output Type	IC Case / Package	No. of Pins	IC Mounting	Delay Time	Operating Temperature Min	Operating Temperature Max	Product Range	Qualification
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LM3880MF-1AA/NOPB .	1364356 RoHS	POWER SEQUENCER, SOT-23-6 TEXAS INSTRUMENTS You previously purchased this product. View in Order History	No Longer Stocked	Each (Supplied on Cut Tape) Cut Tape	1+ ¥159.25 (¥175.18) 10+ ¥113.62 (¥124.98) 50+ ¥103.10 (¥113.41) 100+ ¥97.34 (¥107.07) 250+ ¥91.54 (¥100.69) 500+ ¥87.83 (¥96.61) 1000+ ¥83.83 (¥92.21) 2500+ ¥81.08 (¥89.19) More Pricing...	Restricted Item	-	-	-	-	-	-	-	2.7V	5.5V	Power Up / Down	SOT-23	6Pins	-	-	-40°C	125°C	-	-
NCP303LSN30T1G	1468770 Data Sheet + RoHS	Voltage Detector, Active-Low, Open-Drain Reset, 0.8V-10Vin, TSOP-5 ONSEMI You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape	5+ ¥81.02 (¥89.12) 10+ ¥54.57 (¥60.03) 100+ ¥40.31 (¥44.34)	Restricted Item	-	-	-	-	-	3V	1Monitors	800mV	10V	Active-Low, Open-Drain	TSOP	5Pins	Surface Mount	-	-40°C	125°C	-	-
MAX809RTRG	2532863 Data Sheet + RoHS	MPU Reset Monitor, 1V-5.5V supply, 2.63V Threshold, 460 ms Delay, Active-Low Reset, SOT-23-3 ONSEMI You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape	5+ ¥61.77 (¥67.95) 10+ ¥41.60 (¥45.76) 100+ ¥30.73 (¥33.80)	Restricted Item	-	-	-	-	-	2.63V	1Monitors	1.2V	5.5V	Active-Low	SOT-23	3Pins	Surface Mount	460ms	-40°C	105°C	-	-
NCP301LSN40T1G	2464397 Data Sheet Data Sheet + RoHS	Voltage Detector, Active-Low, Open-Drain Reset, 0.8V-10Vin, TSOP-5 ONSEMI You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape	5+ ¥78.87 (¥86.76) 10+ ¥53.12 (¥58.43) 100+ ¥39.24 (¥43.16)	Restricted Item	-	-	-	-	-	4V	1Monitors	800mV	10V	Active-Low, Open-Drain	TSOP	5Pins	Surface Mount	-	-40°C	125°C	-	-
NCP308SN330T1G	2728303 Data Sheet + RoHS	Supervisor, 1.6 V to 5.5 Vsupp., 3.07 V threshold/300 ms delay, Active-Low, Open-Drain, TSOP-6 ONSEMI You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape	5+ ¥184.71 (¥203.18) 10+ ¥124.41 (¥136.85) 100+ ¥91.90 (¥101.09)	Restricted Item	-	-	-	-	-	3.07V	1Monitors	1.6V	5.5V	Active-Low, Open-Drain	TSOP	6Pins	Surface Mount	300ms	-40°C	125°C	-	-

NCP302LSN30T1G	2318560 Data Sheet + RoHS	Voltage Detector, Active-Low Reset, 0.8V-10Vin, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each	5+ ¥70.15 (¥77.17) 10+ ¥47.25 (¥51.98) 100+ ¥34.91 (¥38.40) 500+ ¥29.78 (¥32.76) 1000+ ¥27.10 (¥29.81) 5000+ ¥25.98 (¥28.58) 10000+ ¥25.08 (¥27.59) More Pricing...	Restricted Item	-	-	-	-	-	3V	1Monitors	800mV	10V	Active-Low	TSOP	5Pins	Surface Mount	-	-40°C	125°C	-	-

MAX708TESA-TG	1703426 Data Sheet + RoHS	Microprocessor Support, Active-High, Active-Low Reset, 2-Monitors, 1V-5.5Vin, SOIC-8 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥136.87 (¥150.56) 10+ ¥92.19 (¥101.41) 100+ ¥68.10 (¥74.91)	Restricted Item	-	-	-	-	-	3.08V	2Monitors	1V	5.5V	Active-High, Active-Low	SOIC	8Pins	Surface Mount	200ms	-40°C	85°C	-	-

NCP803SN263T1G	1652406 Data Sheet + RoHS	Voltage Detector, Active-Low Reset, 1.2V-5.5Vin, SOT-23-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥90.06 (¥99.07) 10+ ¥74.75 (¥82.23) 100+ ¥49.09 (¥54.00)	Restricted Item	-	-	-	-	-	2.63V	1Monitors	1.2V	5.5V	Active-Low	SOT-23	3Pins	Surface Mount	460ms	-40°C	105°C	-	-

NCP303LSN40T1G	2774756 Data Sheet + RoHS	Voltage Detector, 1 Monitor, 0.8 V to 10 V Supply, 4 V Threshold, Active-Low, Open Drain, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥67.05 (¥73.76) 10+ ¥45.17 (¥49.69) 100+ ¥33.36 (¥36.70)	Restricted Item	-	-	-	-	-	4V	1Monitors	800mV	10V	Active-Low	TSOP	5Pins	Surface Mount	-	-40°C	125°C	-	-

NCP301LSN18T1G	2845237 Data Sheet + RoHS	Voltage Detector, 0.8V-10V supply, 1.8V Threshold, 300 ms Delay, Active-Low Reset, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥73.13 (¥80.44) 10+ ¥49.26 (¥54.19) 100+ ¥36.39 (¥40.03)	Restricted Item	-	-	-	-	-	1.8V	1Monitors	800mV	10V	Active-Low	TSOP	5Pins	Surface Mount	300ms	-40°C	125°C	-	-

MAX809TTRG	1652405 Data Sheet + RoHS	Microprocessor, 1V-5.5V Supply, 3.08V Threshold, 460ms Delay, Active-Low, Push-Pull, SOT-23-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥85.52 (¥94.07) 10+ ¥57.60 (¥63.36) 100+ ¥42.55 (¥46.81)	Restricted Item	-	-	-	-	-	3.08V	1Monitors	1V	5.5V	Active-Low, Push-Pull	SOT-23	3Pins	Surface Mount	460ms	-40°C	105°C	-	-

NCP301LSN27T1G	2318559 Data Sheet + RoHS	Voltage Detector, Active-Low Reset, 0.8V-10Vin, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each	5+ ¥78.21 (¥86.03) 10+ ¥52.68 (¥57.95) 100+ ¥38.91 (¥42.80) 500+ ¥33.20 (¥36.52) 1000+ ¥30.21 (¥33.23) 5000+ ¥28.96 (¥31.86) 10000+ ¥27.96 (¥30.76) More Pricing...	Restricted Item	-	-	-	-	-	2.7V	1Monitors	800mV	10V	Active-Low	TSOP	5Pins	Surface Mount	130µs	-40°C	125°C	-	-

NCP803SN160T1G	2464405 Data Sheet Data Sheet + RoHS	Low Supply Current Microprocessor Reset Monitor, Active-Low, Open-Drain Reset, 1.2V-5.5Vin, SOT-23-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥93.07 (¥102.38) 10+ ¥78.21 (¥86.03) 100+ ¥55.09 (¥60.60)	Restricted Item	-	-	-	-	-	1.6V	1Monitors	1.2V	5.5V	Active-Low, Open-Drain	SOT-23	3Pins	Surface Mount	10µs	-40°C	105°C	-	-

BD5245G-TR	2343023 Data Sheet + RoHS	Voltage Detector, Open Drain, Free Delay Time Setting, 4.5 Vreset 0.95V-10Vin, SOT-23-5 ROHM You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥118.58 (¥130.44) 10+ ¥58.54 (¥64.39) 100+ ¥33.48 (¥36.83) 500+ ¥29.65 (¥32.62) 1000+ ¥25.82 (¥28.40) 5000+ ¥21.75 (¥23.93) More Pricing...	Restricted Item	-	-	-	-	-	4.5V	1Monitors	950mV	10V	Active-Low	SOT-23	5Pins	Surface Mount	-	-40°C	105°C	BD52xx	-

MAX803SQ263T1G	2845230 Data Sheet + RoHS	Microprocessor Reset Monitor, Active-Low, 1.2 V to 5.5 V Supply, 2.63 V Threshold, 460 ms, SC-70-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥90.71 (¥99.78)	Restricted Item	-	-	-	-	-	2.63V	1Monitors	1.2V	5.5V	Active-Low	SC-70	3Pins	Surface Mount	460ms	-40°C	105°C	-	-

NCP303LSN28T1G	2845241 Data Sheet + RoHS	Voltage Detector, Active-Low, Open-Drain, 800mV to 10V, 2.8V Threshold, 1 Monitor, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥78.79 (¥86.67) 10+ ¥53.07 (¥58.38) 100+ ¥39.20 (¥43.12)	Restricted Item	-	-	-	-	-	2.8V	1Monitors	800mV	10V	Active-Low, Open-Drain	TSOP	5Pins	Surface Mount	-	-40°C	125°C	-	-

CAT1025WI-30-GT3.	1783707 Data Sheet RoHS	CPU SUPERVISOR, 3mA, 5.5V, SOIC-8 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥228.16 (¥250.98) 10+ ¥208.64 (¥229.50) 100+ ¥146.50 (¥161.15) 500+ ¥129.24 (¥142.16) 3000+ ¥123.34 (¥135.67) 6000+ ¥117.43 (¥129.17) 9000+ ¥113.53 (¥124.88) More Pricing...	Restricted Item	-	-	-	-	-	-	1Monitors	2.7V	5.5V	Manual, Active-High / Active-Low	SOIC	8Pins	-	-	-40°C	85°C	-	-

STM6821LWY6F	3367229 Data Sheet + RoHS	MPU SUPERVISOR/MONITOR, -40 TO 85DEG C STMICROELECTRONICS You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥202.63 (¥222.89) 10+ ¥134.20 (¥147.62) 100+ ¥111.75 (¥122.93) 500+ ¥107.38 (¥118.12) 1000+ ¥103.79 (¥114.17) 2500+ ¥101.72 (¥111.89) 5000+ ¥99.64 (¥109.60) More Pricing...	Restricted Item	-	-	-	-	-	4.63V	1Monitors	1V	5.5V	Manual, Active-High, Push-Pull	SOT-23	5Pins	Surface Mount	200ms	-40°C	85°C	-	-

MAX6326UR29+	9723951 Data Sheet RoHS	Reset Circuit, Active-Low Reset, 1.2V-5.5Vin, SOT-23-3 MAXIM INTEGRATED / ANALOG DEVICES You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥710.65 (¥781.72) 10+ ¥541.16 (¥595.28) 25+ ¥498.82 (¥548.70) 100+ ¥452.23 (¥497.45) 250+ ¥430.00 (¥473.00) 500+ ¥405.58 (¥446.14) 2500+ ¥397.47 (¥437.22) 5000+ ¥389.36 (¥428.30) More Pricing...	Restricted Item	-	-	-	-	-	2.93V	1Monitors	1.2V	5.5V	Active-Low	SOT-23	3Pins	Surface Mount	185ms	-40°C	85°C	-	-

TC670ECHTR	1241716 Data Sheet + RoHS	FAN FAILURE DETECTOR, 5.5V, SOT23-6 MICROCHIP You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥267.18 (¥293.90) 25+ ¥199.64 (¥219.60)	Restricted Item	-	-	-	-	-	-	1Monitors	3V	5.5V	Active-Low, Push-Pull	SOT-23	6Pins	Surface Mount	-	-40°C	125°C	-	-

ISL88011IH531Z-TK	2983652 Data Sheet + RoHS	Supervisory/Voltage Detector, Active-High/Active-Low, 2V to 5.5V, 3.09V Threshold, SOT-23-2V RENESAS You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥361.73 (¥397.90) 10+ ¥256.86 (¥282.55) 50+ ¥229.86 (¥252.85) 100+ ¥213.86 (¥235.25) 250+ ¥197.67 (¥217.44) 500+ ¥186.61 (¥205.27) 1000+ ¥184.58 (¥203.04) 2500+ ¥182.55 (¥200.81) More Pricing...	Restricted Item	-	-	-	-	-	3.09V	1Monitors	2V	5.5V	Manual, Active-High / Active-Low	SOT-23	5Pins	Surface Mount	250ms	-40°C	85°C	-	-

MAX809JTRG	2318554 Data Sheet + RoHS	Reset, Active-Low Reset, 1V-5.5Vin, SOT-23-3 ONSEMI You previously purchased this product. View in Order History		Each	5+ ¥68.58 (¥75.44) 10+ ¥46.20 (¥50.82) 100+ ¥34.12 (¥37.53) 500+ ¥29.11 (¥32.02) 1000+ ¥26.49 (¥29.14) 5000+ ¥25.40 (¥27.94) 10000+ ¥24.52 (¥26.97) More Pricing...	Restricted Item	-	-	-	-	-	4V	1Monitors	1V	5.5V	Active-Low	SOT-23	3Pins	Surface Mount	460ms	-40°C	105°C	-	-

MAX809SN232T1G	2627970 Data Sheet + RoHS	MPU Supervisor, 1.2V-5.5V supply voltage, Active-Low reset, 460 ms delay/2.32V threshold, SOT-23-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥61.77 (¥67.95) 10+ ¥41.60 (¥45.76) 100+ ¥30.73 (¥33.80)	Restricted Item	-	-	-	-	-	2.32V	1Monitors	1.2V	5.5V	Active-Low, Push-Pull	SOT-23	3Pins	Surface Mount	460ms	-40°C	105°C	MAX809	-

NCP301LSN30T1G	2845238 Data Sheet + RoHS	Voltage Detector, 800 mV-10V Supply, 3V Threshold, 300ms Delay, Active-Low, TSOP-5 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥77.96 (¥85.76) 10+ ¥52.51 (¥57.76) 100+ ¥38.79 (¥42.67)	Restricted Item	-	-	-	-	-	3V	1Monitors	800mV	10V	Active-Low	TSOP	5Pins	Surface Mount	300ms	-40°C	125°C	-	-

MAX809SQ293D2T1G	2728237 Data Sheet + RoHS	Supervisor, 1 V to 5.5 Vsupp., 2.93 V threshold/10 µs delay, Active-Low, Push-Pull, SC-70-3 ONSEMI You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	5+ ¥93.29 (¥102.62) 10+ ¥62.84 (¥69.12) 100+ ¥46.42 (¥51.06)	Restricted Item	-	-	-	-	-	2.93V	1Monitors	1V	5.5V	Active-Low, Push-Pull	SC-70	3Pins	Surface Mount	10µs	-40°C	105°C	-	-