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TL331/TL331B/TL391B/TL331B-Q1 Single Comparators

Texas Instruments TL331/TL331B/TL391B/TL331B-Q1 Single Comparators provide outstanding value for cost-sensitive applications. These device's features include lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current. The TL331/TL331B/TL391B/TL331B-Q1 also includes lower propagation delay, wider temperature range, and improved 2kV ESD performance with drop-in replacement convenience. The Texas Instruments TL331B is a drop-in improved replacement for the TL331I and TL331K versions. The TL391B provides an alternate pinout of the TL331B to replace competitive devices.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Number of Channels	Output Type	Response Time	Type	Supply Voltage - Min	Supply Voltage - Max	Operating Supply Current	Output Current per Channel	Vos - Input Offset Voltage	Ib - Input Bias Current	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Analog Comparators Sgl Diff COMPARATOR A 595-TL331KDBVR A 5 A 595-TL331KDBVR TL331KDBVT Texas Instruments 1: S/6.15 47,806In Stock	Mfr. Part # TL331KDBVT Mouser Part # 595-TL331KDBVT	Texas Instruments	Analog Comparators Sgl Diff COMPARATOR A 595-TL331KDBVR A 5 A 595-TL331KDBVR Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	47,806In Stock	Cut Tape S/6.15 S/4.52 S/4.09 S/3.63 Reel S/3.15 View S/3.04 S/2.99 S/2.91 S/2.83 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1.3 us	Differential	2 V	36 V	700 uA		5 mV	250 nA	- 40 C	+ 105 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators Automotive single di fferential comparat TL331EDBVRQ1 Texas Instruments 1: S/3.85 3,282In Stock New Product	Mfr. Part # TL331EDBVRQ1 Mouser Part # 595-TL331EDBVRQ1 New Product	Texas Instruments	Analog Comparators Automotive single di fferential comparat Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	3,282In Stock	Cut Tape S/3.85 S/2.78 S/2.51 S/2.21 View Reel S/1.93 S/2.07 S/1.98 S/1.93 S/1.93	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1.3 us	General Purpose	2 V	36 V	700 uA		9 mV	250 nA	- 40 C	+ 150 C	TL331	Reel, Cut Tape
Analog Comparators AC Sgl Diff Comp- ar ator TL331QDBVRQ1 Texas Instruments 1: S/2.26 8,577In Stock 27,000Expected 10/22/2026	Mfr. Part # TL331QDBVRQ1 Mouser Part # 595-TL331QDBVRQ1	Texas Instruments	Analog Comparators AC Sgl Diff Comp- ar ator Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	8,577In Stock 27,000Expected 10/22/2026	Cut Tape S/2.26 S/1.59 S/1.43 S/1.25 Reel S/1.00 View S/1.16 S/1.11 S/1.06 S/0.977 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	CMOS, TTL		Differential	2 V	36 V	700 uA		2.5 mV	25 nA	- 40 C	+ 125 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators Sgl Diff COMPARATOR A 595-TL331KDBVT A 5 A 595-TL331KDBVT TL331KDBVR Texas Instruments 1: S/1.95 20,352In Stock 24,000Expected 5/3/2027	Mfr. Part # TL331KDBVR Mouser Part # 595-TL331KDBVR	Texas Instruments	Analog Comparators Sgl Diff COMPARATOR A 595-TL331KDBVT A 5 A 595-TL331KDBVT Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	20,352In Stock 24,000Expected 5/3/2027	Cut Tape S/1.95 S/1.36 S/1.21 S/1.04 Reel S/0.825 View S/0.961 S/0.915 S/0.876 S/0.802 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1.3 us	Differential	2 V	36 V	700 uA		5 mV	250 nA	- 40 C	+ 105 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators Automotive grade 36 -V single comparato TL391BQDBVRQ1 Texas Instruments 1: S/2.65 5,170In Stock	Mfr. Part # TL391BQDBVRQ1 Mouser Part # 595-TL391BQDBVRQ1	Texas Instruments	Analog Comparators Automotive grade 36 -V single comparato Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	5,170In Stock	Cut Tape S/2.65 S/1.88 S/1.68 S/1.47 Reel S/1.20 View S/1.37 S/1.31 S/1.26 S/1.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	CMOS, TTL	1 us	General Purpose	2 V	36 V	210 uA		2.5 mV	25 nA	- 40 C	+ 125 C	TL391B	Reel, Cut Tape, MouseReel
Analog Comparators Single Differential Comparator A 595-TL3 A 595-TL331IDBVR TL331IDBVT Texas Instruments 1: S/6.15 565In Stock	Mfr. Part # TL331IDBVT Mouser Part # 595-TL331IDBVT	Texas Instruments	Analog Comparators Single Differential Comparator A 595-TL3 A 595-TL331IDBVR Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	565In Stock	Cut Tape S/6.15 S/4.52 S/4.09 S/3.63 Reel S/3.38 View S/3.22 S/3.10 S/3.04 S/3.03 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1.3 us	Differential	2 V	36 V	700 uA		5 mV	250 nA	- 40 C	+ 85 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators Automotive grade 36 -V single comparato TL331BQDBVRQ1 Texas Instruments 1: S/2.72 399In Stock 15,000Expected 2/25/2027	Mfr. Part # TL331BQDBVRQ1 Mouser Part # 595-TL331BQDBVRQ1	Texas Instruments	Analog Comparators Automotive grade 36 -V single comparato Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	399In Stock 15,000Expected 2/25/2027	Cut Tape S/2.72 S/1.95 S/1.75 S/1.53 Reel S/1.24 View S/1.42 S/1.36 S/1.31 S/1.21 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	CMOS, TTL	1 us	General Purpose	2 V	36 V	275 uA	18 mA	2.5 mV	25 nA	- 40 C	+ 125 C	TL331B	Reel, Cut Tape, MouseReel
Analog Comparators Single/Dual Diff A 5 95-TL331IDBVT A 595 A 595-TL331IDBVT TL331IDBVR Texas Instruments 1: S/1.75 575In Stock 147,000On Order	Mfr. Part # TL331IDBVR Mouser Part # 595-TL331IDBVR	Texas Instruments	Analog Comparators Single/Dual Diff A 5 95-TL331IDBVT A 595 A 595-TL331IDBVT Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	575In Stock 147,000On Order On Order Ship Dates Mfr. #: TL331IDBVR Stock: 575 Can Ship Immediately On Order: 87,000 Expected 11/12/2026 60,000 Expected 11/16/2026 Factory Lead-Time: 20 Weeks	Cut Tape S/1.75 S/1.21 S/1.08 S/0.934 Reel S/0.747 View S/0.868 S/0.825 S/0.79 S/0.724 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1.3 us	Differential	2 V	36 V	700 uA		5 mV	250 nA	- 40 C	+ 85 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators Auto Cat Sgl Diff Co mparator TL331IDBVRQ1 Texas Instruments 1: S/2.26 2,707In Stock 3,000Expected 3/1/2027	Mfr. Part # TL331IDBVRQ1 Mouser Part # 595-TL331IDBVRQ1	Texas Instruments	Analog Comparators Auto Cat Sgl Diff Co mparator Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	2,707In Stock 3,000Expected 3/1/2027	Cut Tape S/2.26 S/1.59 S/1.43 S/1.25 Reel S/1.00 View S/1.16 S/1.11 S/1.06 S/0.977 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	CMOS, TTL	1.3 us	Differential	2 V	36 V	700 uA	18 mA	2.5 mV	25 nA	- 40 C	+ 125 C	TL331	Reel, Cut Tape, MouseReel
Analog Comparators 36-V standard sing l e-channel comparato TL391BIDBVR Texas Instruments 1: S/2.30 4,020In Stock 9,000Expected 10/15/2026	Mfr. Part # TL391BIDBVR Mouser Part # 595-TL391BIDBVR	Texas Instruments	Analog Comparators 36-V standard sing l e-channel comparato Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	4,020In Stock 9,000Expected 10/15/2026	Cut Tape S/2.30 S/1.62 S/1.45 S/1.27 Reel S/1.06 View S/1.18 S/1.12 S/1.08 S/0.993 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1 us	Differential	2 V	36 V	700 uA		2.5 mV	25 nA	- 40 C	+ 125 C	TL391B	Reel, Cut Tape, MouseReel
Analog Comparators High voltage cost o ptimized single cha TL331BIDBVR Texas Instruments 1: S/2.18 116,034On Order	Mfr. Part # TL331BIDBVR Mouser Part # 595-TL331BIDBVR	Texas Instruments	Analog Comparators High voltage cost o ptimized single cha Learn More about Texas Instruments ti tl331 tl331b tl391b comparators	Datasheet	116,034On Order On Order Ship Dates Mfr. #: TL331BIDBVR Stock: 0 On Order: 74,034 Expected 12/10/2026 42,000 Expected 1/15/2027 Factory Lead-Time: 20 Weeks	Cut Tape S/2.18 S/1.54 S/1.38 S/1.20 Reel S/0.965 View S/1.11 S/1.06 S/1.02 S/0.938 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 Channel	Open Collector, Open Drain	1 us	General Purpose	2 V	36 V	700 uA		2.5 mV	25 nA	- 40 C	+ 125 C	TL331B	Reel, Cut Tape, MouseReel

TL331/TL331B/TL391B/TL331B-Q1 Single Comparators

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