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TS391 Low-Power Single Voltage Comparators

STMicroelectronics TS391 Low-Power Single Voltage Comparators operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. The TS391 has a wide single supply voltage range or dual supplies of 2V to 36V or ±1V to ±18V. An input common-mode voltage range includes ground, even though operated from a single power supply voltage. The differential input voltage range is equal to the supply voltage.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PHP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	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 Low power, single voltage comparator TS391RIYLT STMicroelectronics 1: ₱48.47 6,457In Stock	Mfr. Part # TS391RIYLT Mouser Part # 511-TS391RIYLT	STMicroelectronics	Analog Comparators Low power, single voltage comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	6,457In Stock	Cut Tape ₱48.47 ₱38.16 ₱35.28 ₱32.33 Reel ₱28.90 View ₱30.86 ₱30.06 ₱29.57 ₱28.59 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	200 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators Low power, single voltage comparator TS391AILT STMicroelectronics 1: ₱65.64 4,499In Stock 6,000Expected 11/10/2027	Mfr. Part # TS391AILT Mouser Part # 511-TS391AILT	STMicroelectronics	Analog Comparators Low power, single voltage comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	4,499In Stock 6,000Expected 11/10/2027	Cut Tape ₱65.64 ₱47.48 ₱42.88 ₱37.85 Reel ₱30.49 View ₱35.40 ₱34.17 ₱33.07 ₱29.88 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391A	Reel, Cut Tape, MouseReel
	Analog Comparators Lo-Pwr Sngl Voltage TS391ILT STMicroelectronics 1: ₱40.49 20,815In Stock 18,000Expected 04/01/2027	Mfr. Part # TS391ILT Mouser Part # 511-TS391IL	STMicroelectronics	Analog Comparators Lo-Pwr Sngl Voltage Learn More about STMicroelectronics stm ts391 comparators	Datasheet	20,815In Stock 18,000Expected 04/01/2027	Cut Tape ₱40.49 ₱28.65 ₱25.77 ₱22.45 Reel ₱17.67 View ₱20.92 ₱20.00 ₱19.20 ₱17.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators Low Power 0.2mA 18 or 36V VCC Comp TS391RILT STMicroelectronics 1: ₱44.79 18,040In Stock 15,000Expected 29/10/2026	Mfr. Part # TS391RILT Mouser Part # 511-TS391RILT	STMicroelectronics	Analog Comparators Low Power 0.2mA 18 or 36V VCC Comp Learn More about STMicroelectronics stm ts391 comparators	Datasheet	18,040In Stock 15,000Expected 29/10/2026	Cut Tape ₱44.79 ₱31.72 ₱28.53 ₱24.97 Reel ₱19.75 View ₱23.25 ₱22.27 ₱21.41 ₱19.26 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators LP Single Volt Comp 18 or 36 VCC 150c TS391IQ2T STMicroelectronics 1: ₱91.41 169In Stock 3,000Expected 11/12/2026	Mfr. Part # TS391IQ2T Mouser Part # 511-TS391IQ2T	STMicroelectronics	Analog Comparators LP Single Volt Comp 18 or 36 VCC 150c Learn More about STMicroelectronics stm ts391 comparators	Datasheet	169In Stock 3,000Expected 11/12/2026	Cut Tape ₱91.41 ₱66.26 ₱60.00 ₱53.01 View Reel ₱43.74 ₱49.69 ₱47.73 ₱45.58 ₱43.74 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	DFN-8	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators LP Single Volt 2V to 36V Comparator TS391IYLT STMicroelectronics 1: ₱90.80 450In Stock 18,000On Order	Mfr. Part # TS391IYLT Mouser Part # 511-TS391IYLT	STMicroelectronics	Analog Comparators LP Single Volt 2V to 36V Comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	450In Stock 18,000On Order On Order Ship Dates Mfr. #: TS391IYLT Stock: 450 Can Ship Immediately On Order: 9,000 Expected 04/11/2026 9,000 Expected 05/11/2026 Factory Lead-Time: 30 Weeks	Cut Tape ₱90.80 ₱66.26 ₱59.69 ₱52.88 View Reel ₱35.40 ₱49.69 ₱38.77 ₱37.48 ₱35.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel