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LM139, LM239 & LM339 Quad Voltage Comparators

STMicroelectronics LM139, LM239, and LM339 Low-Power Quad Voltage Comparators consist of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV. These Low-Power Quad Voltage Comparators have been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. STMicroelectronics' Low-Power Quad Voltage Comparators also have a unique characteristic in that the input common mode voltage range includes ground even though operated from a single power supply voltage.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (ARS) 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 Lo Pwr QUAD Vltg COMPARATOR LM339APT STMicroelectronics 1: $ 626,40 37.345In Stock	Mfr. Part # LM339APT Mouser Part # 511-LM339APT	STMicroelectronics	Analog Comparators Lo Pwr QUAD Vltg COMPARATOR Learn More about STMicroelectronics stm standard products	Datasheet	37.345In Stock	Cut Tape $ 626,40 $ 429,78 $ 382,80 $ 330,60 Reel $ 233,16 View $ 306,24 $ 290,58 $ 278,40 $ 231,42 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Low power quad voltage comparators LM139ADT STMicroelectronics 1: $ 2.418,59 3.876In Stock	Mfr. Part # LM139ADT Mouser Part # 511-LM139ADT	STMicroelectronics	Analog Comparators Low power quad voltage comparators Learn More about STMicroelectronics stmlmx39	Datasheet	3.876In Stock	Cut Tape $ 2.418,59 $ 1.757,39 $ 1.583,39 $ 1.400,69 Reel $ 1.167,53 View $ 1.311,95 $ 1.259,75 $ 1.202,33 $ 1.139,69 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 55 C	+ 125 C	LM139	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339DT STMicroelectronics 1: $ 504,60 21.001In Stock 47.500Expected 1/18/2027	Mfr. Part # LM339DT Mouser Part # 511-LM339DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	21.001In Stock 47.500Expected 1/18/2027	Cut Tape $ 504,60 $ 353,22 $ 311,46 $ 264,48 Reel $ 205,32 View $ 243,60 $ 229,68 $ 219,24 $ 198,36 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339PT STMicroelectronics 1: $ 643,80 28.961In Stock	Mfr. Part # LM339PT Mouser Part # 511-LM339P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	28.961In Stock	Cut Tape $ 643,80 $ 440,22 $ 391,50 $ 339,30 View Reel $ 269,70 $ 313,20 $ 297,54 $ 285,36 $ 269,70 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Low PWR Quad Volt 1.1 mA 25nA 250mV LM139DT STMicroelectronics 1: $ 2.905,79 2.037In Stock 4.800Expected 11/5/2026	Mfr. Part # LM139DT Mouser Part # 511-LM139DT	STMicroelectronics	Analog Comparators Low PWR Quad Volt 1.1 mA 25nA 250mV Learn More about STMicroelectronics stmlmx39	Datasheet	2.037In Stock 4.800Expected 11/5/2026	Cut Tape $ 2.905,79 $ 2.140,19 $ 1.948,79 $ 1.722,59 View Reel $ 962,22 $ 1.619,93 $ 1.557,29 $ 1.548,59 $ 962,22 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 55 C	+ 125 C	LM139	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239ADT STMicroelectronics 1: $ 765,60 5.420In Stock 12.500On Order	Mfr. Part # LM239ADT Mouser Part # 511-LM239ADT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	5.420In Stock 12.500On Order On Order Ship Dates Mfr. #: LM239ADT Stock: 5.420 Can Ship Immediately On Order: 5.000 Expected 11/26/2026 7.500 Expected 1/27/2027 Factory Lead-Time: 30 Weeks	Cut Tape $ 765,60 $ 530,70 $ 473,28 $ 414,12 View Reel $ 306,24 $ 382,80 $ 365,40 $ 346,26 $ 306,24 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239APT STMicroelectronics 1: $ 835,20 4.190In Stock 5.000Expected 11/25/2026	Mfr. Part # LM239APT Mouser Part # 511-LM239AP	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	4.190In Stock 5.000Expected 11/25/2026	Cut Tape $ 835,20 $ 591,60 $ 528,96 $ 457,62 Reel $ 370,62 View $ 424,56 $ 412,38 $ 393,24 $ 346,26 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239D STMicroelectronics 1: $ 1.061,39 3.146In Stock 2.000Expected 11/5/2026	Mfr. Part # LM239D Mouser Part # 511-LM239D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	3.146In Stock 2.000Expected 11/5/2026	$ 1.061,39 $ 755,16 $ 753,42 $ 654,24 View $ 607,26 $ 579,42 $ 555,06 $ 525,48 $ 473,28	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 25 C	+ 85 C	LM239	Tube
Analog Comparators Lo-Pwr Quad Voltage LM239DT STMicroelectronics 1: $ 1.061,39 8.509In Stock	Mfr. Part # LM239DT Mouser Part # 511-LM239DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	8.509In Stock	Cut Tape $ 1.061,39 $ 753,42 $ 675,12 $ 588,12 View Reel $ 478,50 $ 546,36 $ 522,00 $ 501,12 $ 478,50 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators LP Quad 2mV 1.1mA 25nA 4 Precision LM239QT STMicroelectronics 1: $ 1.009,20 1.301In Stock 69.000On Order	Mfr. Part # LM239QT Mouser Part # 511-LM239QT	STMicroelectronics	Analog Comparators LP Quad 2mV 1.1mA 25nA 4 Precision Learn More about STMicroelectronics stm standard products	Datasheet	1.301In Stock 69.000On Order On Order Ship Dates Mfr. #: LM239QT Stock: 1.301 Can Ship Immediately On Order: 27.000 Expected 11/24/2026 42.000 Expected 5/12/2027 Factory Lead-Time: 30 Weeks	Cut Tape $ 1.009,20 $ 723,84 $ 650,76 $ 572,46 View Reel $ 483,72 $ 532,44 $ 508,08 $ 487,20 $ 483,72 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	QFN-16	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Low Power QUAD 1.1 mA 25nA 250mV LM339QT STMicroelectronics 1: $ 835,20 250In Stock 131.500On Order	Mfr. Part # LM339QT Mouser Part # 511-LM339QT	STMicroelectronics	Analog Comparators Low Power QUAD 1.1 mA 25nA 250mV Learn More about STMicroelectronics stm standard products	Datasheet	250In Stock 131.500On Order On Order Ship Dates Mfr. #: LM339QT Stock: 250 Can Ship Immediately On Order: 23.500 Expected 11/2/2026 108.000 Expected 11/5/2026 Factory Lead-Time: 30 Weeks	Cut Tape $ 835,20 $ 581,16 $ 518,52 $ 466,32 View Reel $ 381,06 $ 440,22 $ 424,56 $ 412,38 $ 381,06 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	QFN-16	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339D STMicroelectronics 1: $ 835,20 5In Stock 13.000On Order	Mfr. Part # LM339D Mouser Part # 511-LM339D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	5In Stock 13.000On Order On Order Ship Dates Mfr. #: LM339D Stock: 5 Can Ship Immediately On Order: 4.000 Expected 11/27/2026 9.000 Expected 11/30/2026 Factory Lead-Time: 30 Weeks	$ 835,20 $ 605,52 $ 565,50 $ 506,34 View $ 475,02 $ 459,36 $ 419,34	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Tube
Analog Comparators Lo-Pwr Quad Voltage LM239PT STMicroelectronics 1: $ 800,40 9.850On Order	Mfr. Part # LM239PT Mouser Part # 511-LM239P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	9.850On Order On Order Ship Dates Mfr. #: LM239PT Stock: 0 On Order: 4.850 Expected 12/14/2026 5.000 Expected 4/26/2027 Factory Lead-Time: 30 Weeks	Cut Tape $ 800,40 $ 555,06 $ 494,16 $ 426,30 View Reel $ 337,56 $ 394,98 $ 374,10 $ 358,44 $ 337,56 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339ADT STMicroelectronics 1: $ 626,40 17.500On Order	Mfr. Part # LM339ADT Mouser Part # 511-LM339ADT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	17.500On Order On Order Ship Dates Mfr. #: LM339ADT Stock: 0 On Order: 10.000 Expected 11/2/2026 7.500 Expected 3/22/2027 Factory Lead-Time: 30 Weeks	Cut Tape $ 626,40 $ 435,00 $ 388,02 $ 334,08 View Reel $ 267,96 $ 307,98 $ 294,06 $ 280,14 $ 267,96 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339AD STMicroelectronics 1: $ 991,80 4.972On Order	Mfr. Part # LM339AD Mouser Part # 511-LM339AD	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	4.972On Order On Order Ship Dates Mfr. #: LM339AD Stock: 0 On Order: 972 Expected 11/17/2026 4.000 Expected 2/10/2027 Factory Lead-Time: 30 Weeks	$ 991,80 $ 683,82 $ 610,74 $ 530,70 View $ 492,42 $ 469,80 $ 431,52 $ 412,38 $ 405,42	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Tube

LM139, LM239 & LM339 Quad Voltage Comparators

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