Supervisory Circuits – Mouser Puerto Rico

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BU45K/BU46K Series Voltage Detector ICs

ROHM Semiconductor BU45K/BU46K Series Voltage Detector ICs with built-in counter timer offer a low current consumption of 2.3μA (Typ.) and high accuracy detection voltage of ±1.0%. The BU45K/BU46K series has a detection voltage range of 2.3V to 4.8V with a counter-timer delay circuit built-in, eliminating the need for an external capacitor.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Type	Mounting Style	Package / Case	Threshold Voltage	Number of Inputs Monitored	Output Type	Manual Reset	Watchdog Timers	Battery Backup Switching	Reset Delay Time	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Accuracy	Series	Packaging
Supervisory Circuits IC Vtg detector BU46K292G-TL ROHM Semiconductor 1: $0.65 A tariff of 20% may be applied if shipping to the United States. 5,716In Stock NRND	Mfr. Part # BU46K292G-TL Mouser Part # 755-BU46K292G-TL NRND	ROHM Semiconductor	Supervisory Circuits IC Vtg detector	Datasheet	5,716In Stock	Cut Tape $0.65 $0.457 $0.423 $0.369 Reel $0.301 View $0.344 $0.328 $0.316 $0.293 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	2.9 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits IC Vtg detector BU46K262G-TL ROHM Semiconductor 1: $0.67 A tariff of 20% may be applied if shipping to the United States. 5,969In Stock NRND	Mfr. Part # BU46K262G-TL Mouser Part # 755-BU46K262G-TL NRND	ROHM Semiconductor	Supervisory Circuits IC Vtg detector	Datasheet	5,969In Stock	Cut Tape $0.67 $0.471 $0.423 $0.369 Reel $0.301 View $0.344 $0.328 $0.316 $0.293 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	2.6 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 3.0V, Fixed Delay (200msec) Voltage Detector BU45K302G-TL ROHM Semiconductor 1: $0.60 A tariff of 20% may be applied if shipping to the United States. 3,723In Stock NRND	Mfr. Part # BU45K302G-TL Mouser Part # 755-BU45K302G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.0V, Fixed Delay (200msec) Voltage Detector	Datasheet	3,723In Stock	Cut Tape $0.60 $0.426 $0.382 $0.334 Reel $0.28 View $0.31 $0.296 $0.292 $0.272 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 2.3V Open Drain BU45L234G-TL ROHM Semiconductor 1: $0.57 A tariff of 20% may be applied if shipping to the United States. 2,990In Stock NRND	Mfr. Part # BU45L234G-TL Mouser Part # 755-BU45L234G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.3V Open Drain	Datasheet	2,990In Stock	Cut Tape $0.57 $0.399 $0.357 $0.311 Reel View $0.289 $0.276 $0.265 $0.251 $0.244 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	2.3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 3.3V, CMOS Output Type, Fixed Delay (200msec) Voltage Detector BU46L332G-TL ROHM Semiconductor 1: $0.72 A tariff of 20% may be applied if shipping to the United States. 2,549In Stock NRND	Mfr. Part # BU46L332G-TL Mouser Part # 755-BU46L332G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.3V, CMOS Output Type, Fixed Delay (200msec) Voltage Detector	Datasheet	2,549In Stock	Cut Tape $0.72 $0.514 $0.462 $0.405 Reel View $0.377 $0.36 $0.347 $0.288 $0.287 A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	3.3 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape
Supervisory Circuits 3.3V, CMOS Output Type, Fixed Delay (400msec) Voltage Detector BU46L334G-TL ROHM Semiconductor 1: $0.70 A tariff of 20% may be applied if shipping to the United States. 2,948In Stock NRND	Mfr. Part # BU46L334G-TL Mouser Part # 755-BU46L334G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.3V, CMOS Output Type, Fixed Delay (400msec) Voltage Detector	Datasheet	2,948In Stock	Cut Tape $0.70 $0.499 $0.449 $0.393 Reel View $0.366 $0.35 $0.347 $0.332 $0.324 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	3.3 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits IC Vtg detector BU46K402G-TL ROHM Semiconductor 1: $0.67 A tariff of 20% may be applied if shipping to the United States. 5,950In Stock NRND	Mfr. Part # BU46K402G-TL Mouser Part # 755-BU46K402G-TL NRND	ROHM Semiconductor	Supervisory Circuits IC Vtg detector	Datasheet	5,950In Stock	Cut Tape $0.67 $0.471 $0.423 $0.369 Reel $0.321 View $0.344 $0.328 $0.321 $0.293 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	4 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 2.4V 200ms SSOP3 Nch Volt Detctr IC BU45K242G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 1,468In Stock NRND	Mfr. Part # BU45K242G-TL Mouser Part # 755-BU45K242G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.4V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	1,468In Stock	Cut Tape $0.55 $0.39 $0.35 $0.304 Reel View $0.283 $0.27 $0.259 $0.245 $0.238 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.4 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 2.5V Open Drain BU45K254G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 2,880In Stock NRND	Mfr. Part # BU45K254G-TL Mouser Part # 755-BU45K254G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.5V Open Drain	Datasheet	2,880In Stock	Cut Tape $0.55 $0.387 $0.347 $0.302 Reel View $0.281 $0.268 $0.262 $0.256 $0.252 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.5 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 2.6V Open Drain BU45K264G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 1,942In Stock NRND	Mfr. Part # BU45K264G-TL Mouser Part # 755-BU45K264G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.6V Open Drain	Datasheet	1,942In Stock	Cut Tape $0.55 $0.541 $0.47 $0.436 Reel View $0.416 $0.399 $0.254 $0.251 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.6 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 3.2V Open Drain BU45K322G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 2,767In Stock NRND	Mfr. Part # BU45K322G-TL Mouser Part # 755-BU45K322G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 3.2V Open Drain	Datasheet	2,767In Stock	Cut Tape $0.55 $0.387 $0.347 $0.302 Reel View $0.281 $0.268 $0.262 $0.256 $0.247 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	3.2 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 4.5V 200ms SSOP3 Nch Volt Detctr IC BU45K452G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 1,766In Stock NRND	Mfr. Part # BU45K452G-TL Mouser Part # 755-BU45K452G-TL NRND	ROHM Semiconductor	Supervisory Circuits 4.5V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	1,766In Stock	Cut Tape $0.55 $0.39 $0.35 $0.304 Reel View $0.283 $0.27 $0.259 $0.248 $0.245 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	4.5 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 4.7V Open Drain BU45L472G-TL ROHM Semiconductor 1: $0.58 A tariff of 20% may be applied if shipping to the United States. 1,744In Stock NRND	Mfr. Part # BU45L472G-TL Mouser Part # 755-BU45L472G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 4.7V Open Drain	Datasheet	1,744In Stock	Cut Tape $0.58 $0.561 $0.541 $0.47 Reel View $0.436 $0.416 $0.399 $0.254 $0.251 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	4.7 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits Volt Det IC 2.5V CMOS BU46K254G-TL ROHM Semiconductor 1: $0.58 A tariff of 20% may be applied if shipping to the United States. 2,940In Stock NRND	Mfr. Part # BU46K254G-TL Mouser Part # 755-BU46K254G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.5V CMOS	Datasheet	2,940In Stock	Cut Tape $0.58 $0.561 $0.541 $0.47 Reel View $0.436 $0.416 $0.399 $0.254 $0.25 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	2.5 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 2.3V 400ms SSOP3 Nch Volt Detctr IC BU45K234G-TL ROHM Semiconductor 1: $0.55 A tariff of 20% may be applied if shipping to the United States. 454In Stock NRND	Mfr. Part # BU45K234G-TL Mouser Part # 755-BU45K234G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.3V 400ms SSOP3 Nch Volt Detctr IC	Datasheet	454In Stock	Cut Tape $0.55 $0.39 $0.35 $0.304 Reel View $0.283 $0.27 $0.259 $0.245 $0.238 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 2.6V 200ms SSOP3 Nch Volt Detctr IC BU45K262G-TL ROHM Semiconductor 1: $0.56 A tariff of 20% may be applied if shipping to the United States. 838In Stock NRND	Mfr. Part # BU45K262G-TL Mouser Part # 755-BU45K262G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.6V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	838In Stock	Cut Tape $0.56 $0.393 $0.351 $0.305 Reel View $0.283 $0.27 $0.259 $0.245 $0.239 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.6 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 2.7V 200ms SSOP3 Nch Volt Detctr IC BU45K272G-TL ROHM Semiconductor 1: $0.54 A tariff of 20% may be applied if shipping to the United States. 428In Stock NRND	Mfr. Part # BU45K272G-TL Mouser Part # 755-BU45K272G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.7V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	428In Stock	Cut Tape $0.54 $0.379 $0.339 $0.295 Reel View $0.274 $0.271 $0.266 $0.25 $0.246 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SOT-23-3	2.7 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel
Supervisory Circuits 3.0V 400ms SSOP3 Nch Volt Detctr IC BU45K304G-TL ROHM Semiconductor 1: $0.54 A tariff of 20% may be applied if shipping to the United States. 206In Stock NRND	Mfr. Part # BU45K304G-TL Mouser Part # 755-BU45K304G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.0V 400ms SSOP3 Nch Volt Detctr IC	Datasheet	206In Stock	Cut Tape $0.54 $0.379 $0.339 $0.295 Reel View $0.274 $0.271 $0.266 $0.25 $0.246 MouseReel Available A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	Voltage Detector	SMD/SMT	SSOP-3	3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel, Cut Tape, MouseReel

BU45K/BU46K Series Voltage Detector ICs

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