Supervisory Circuits – Mouser Canada

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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 (CAD) 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: $0.936 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 $0.936 $0.658 $0.609 $0.531 View Reel $0.419 $0.495 $0.472 $0.455 $0.419 MouseReel Available	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: $0.965 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 $0.965 $0.678 $0.609 $0.531 View Reel $0.419 $0.495 $0.472 $0.455 $0.419 MouseReel Available	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 3.3V, CMOS Output Type, Fixed Delay (200msec) Voltage Detector BU46L332G-TL ROHM Semiconductor 1: $1.04 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 $1.04 $0.74 $0.665 $0.583 Reel View $0.543 $0.518 $0.50 $0.415 $0.413	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 Volt Det IC 2.3V Open Drain BU45L234G-TL ROHM Semiconductor 1: $0.821 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 $0.821 $0.575 $0.514 $0.448 Reel View $0.416 $0.397 $0.382 $0.361 $0.351 MouseReel Available	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 3.0V, Fixed Delay (200msec) Voltage Detector BU45K302G-TL ROHM Semiconductor 1: $0.893 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 $0.893 $0.632 $0.567 $0.495 Reel $0.389 View $0.461 $0.439 $0.422 $0.384 MouseReel Available	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 3.3V, CMOS Output Type, Fixed Delay (400msec) Voltage Detector BU46L334G-TL ROHM Semiconductor 1: $1.04 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 $1.04 $0.74 $0.665 $0.583 Reel View $0.543 $0.518 $0.50 $0.491 $0.482 MouseReel Available	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: $0.965 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 $0.965 $0.678 $0.609 $0.531 Reel $0.462 View $0.495 $0.472 $0.462 $0.422 MouseReel Available	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: $0.792 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 $0.792 $0.562 $0.504 $0.438 Reel View $0.408 $0.389 $0.373 $0.353 $0.343 MouseReel Available	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: $0.821 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 $0.821 $0.575 $0.514 $0.448 Reel View $0.416 $0.397 $0.382 $0.369 $0.363 MouseReel Available	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: $0.821 1,792In Stock NRND	Mfr. Part # BU45K264G-TL Mouser Part # 755-BU45K264G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.6V Open Drain	Datasheet	1,792In Stock	Cut Tape $0.821 $0.779 $0.677 $0.628 Reel View $0.599 $0.575 $0.366 $0.361 MouseReel Available	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: $0.821 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 $0.821 $0.575 $0.514 $0.448 Reel View $0.416 $0.397 $0.382 $0.369 $0.356 MouseReel Available	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: $0.792 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 $0.792 $0.562 $0.504 $0.438 Reel View $0.408 $0.389 $0.373 $0.357 $0.353 MouseReel Available	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: $0.835 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 $0.835 $0.808 $0.779 $0.677 Reel View $0.628 $0.599 $0.575 $0.366 $0.361 MouseReel Available	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: $0.835 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 $0.835 $0.808 $0.779 $0.677 Reel View $0.628 $0.599 $0.575 $0.366 $0.36 MouseReel Available	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: $0.835 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 $0.835 $0.58 $0.518 $0.452 Reel View $0.419 $0.40 $0.383 $0.353 $0.343 MouseReel Available	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: $0.792 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 $0.792 $0.562 $0.504 $0.438 Reel View $0.408 $0.389 $0.373 $0.36 $0.353 MouseReel Available	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: $0.792 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 $0.792 $0.562 $0.504 $0.438 Reel View $0.408 $0.397 $0.389 $0.357 $0.353 MouseReel Available	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: $0.792 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 $0.792 $0.562 $0.504 $0.438 Reel View $0.408 $0.397 $0.389 $0.36 $0.354 MouseReel Available	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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