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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 (CZK) 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	Comparator 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 quad voltage comparators LM139ADT STMicroelectronics 1: 29,69 Kč 3 938In Stock	Mfr. Part No. LM139ADT Mouser Part No 511-LM139ADT	STMicroelectronics	Analog Comparators Low power quad voltage comparators Learn More about STMicroelectronics stmlmx39	Datasheet	3 938In Stock	Cut Tape 29,69 Kč 21,50 Kč 19,37 Kč 17,12 Kč Reel 14,27 Kč View 16,03 Kč 15,41 Kč 14,70 Kč 13,93 Kč 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 Vltg COMPARATOR LM339APT STMicroelectronics 1: 7,67 Kč 42 850In Stock	Mfr. Part No. LM339APT Mouser Part No 511-LM339APT	STMicroelectronics	Analog Comparators Lo Pwr QUAD Vltg COMPARATOR Learn More about STMicroelectronics stm standard products	Datasheet	42 850In Stock	Cut Tape 7,67 Kč 5,24 Kč 4,68 Kč 4,03 Kč Reel 2,85 Kč View 3,74 Kč 3,56 Kč 3,41 Kč 2,82 Kč 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 LP Quad 2mV 1.1mA 25nA 4 Precision LM239QT STMicroelectronics 1: 12,35 Kč 6 803In Stock 72 000On Order	Mfr. Part No. LM239QT Mouser Part No 511-LM239QT	STMicroelectronics	Analog Comparators LP Quad 2mV 1.1mA 25nA 4 Precision Learn More about STMicroelectronics stm standard products	Datasheet	6 803In Stock 72 000On Order On Order Ship Dates Mfr. No: LM239QT Stock: 6 803 Can Dispatch Immediately On Order: 30 000 Expected 11/7/2026 42 000 Expected 5/12/2027 Factory Lead Time: 30 Weeks	Cut Tape 12,35 Kč 8,86 Kč 7,97 Kč 7,00 Kč Reel 5,91 Kč View 6,51 Kč 6,21 Kč 5,96 Kč 5,74 Kč 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 Lo-Pwr Quad Voltage LM339DT STMicroelectronics 1: 6,16 Kč 21 161In Stock 47 500Expected 1/18/2027	Mfr. Part No. LM339DT Mouser Part No 511-LM339DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	21 161In Stock 47 500Expected 1/18/2027	Cut Tape 6,16 Kč 4,33 Kč 3,81 Kč 3,24 Kč Reel 2,50 Kč View 2,97 Kč 2,82 Kč 2,67 Kč 2,42 Kč 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: 7,87 Kč 31 963In Stock	Mfr. Part No. LM339PT Mouser Part No 511-LM339P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	31 963In Stock	Cut Tape 7,87 Kč 5,39 Kč 4,80 Kč 4,16 Kč View Reel 3,29 Kč 3,83 Kč 3,64 Kč 3,49 Kč 3,29 Kč 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: 35,63 Kč 1 045In Stock 5 000Expected 11/4/2026	Mfr. Part No. LM139DT Mouser Part No 511-LM139DT	STMicroelectronics	Analog Comparators Low PWR Quad Volt 1.1 mA 25nA 250mV Learn More about STMicroelectronics stmlmx39	Datasheet	1 045In Stock 5 000Expected 11/4/2026	Cut Tape 35,63 Kč 26,22 Kč 23,82 Kč 21,05 Kč View Reel 11,78 Kč 19,82 Kč 19,05 Kč 18,93 Kč 11,78 Kč 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: 9,35 Kč 210In Stock 17 500On Order	Mfr. Part No. LM239ADT Mouser Part No 511-LM239ADT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	210In Stock 17 500On Order On Order Ship Dates Mfr. No: LM239ADT Stock: 210 Can Dispatch Immediately On Order: 5 000 Expected 10/12/2026 5 000 Expected 11/30/2026 7 500 Expected 3/15/2027 Factory Lead Time: 30 Weeks	Cut Tape 9,35 Kč 6,48 Kč 5,79 Kč 5,07 Kč View Reel 3,74 Kč 4,68 Kč 4,48 Kč 4,23 Kč 3,74 Kč 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: 10,22 Kč 4 190In Stock 5 000Expected 11/25/2026	Mfr. Part No. LM239APT Mouser Part No 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 10,22 Kč 7,22 Kč 6,46 Kč 5,59 Kč Reel 4,53 Kč View 5,20 Kč 5,05 Kč 4,80 Kč 4,23 Kč 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: 12,99 Kč 3 656In Stock 2 000Expected 11/9/2026	Mfr. Part No. LM239D Mouser Part No 511-LM239D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	3 656In Stock 2 000Expected 11/9/2026	12,99 Kč 9,23 Kč 9,20 Kč 7,99 Kč View 7,42 Kč 7,08 Kč 6,78 Kč 6,43 Kč 5,07 Kč	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: 12,99 Kč 4 430In Stock	Mfr. Part No. LM239DT Mouser Part No 511-LM239DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	4 430In Stock	Cut Tape 12,99 Kč 9,20 Kč 8,26 Kč 7,20 Kč View Reel 5,10 Kč 6,68 Kč 6,38 Kč 5,12 Kč 5,10 Kč 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 Lo-Pwr Quad Voltage LM239PT STMicroelectronics 1: 9,80 Kč 2 952In Stock 5 000Expected 12/14/2026	Mfr. Part No. LM239PT Mouser Part No 511-LM239P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	2 952In Stock 5 000Expected 12/14/2026	Cut Tape 9,80 Kč 6,78 Kč 6,04 Kč 5,22 Kč Reel 4,13 Kč View 4,82 Kč 4,58 Kč 4,38 Kč 4,01 Kč 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 LM339D STMicroelectronics 1: 10,22 Kč 4 645In Stock 4 000Expected 10/21/2026	Mfr. Part No. LM339D Mouser Part No 511-LM339D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	4 645In Stock 4 000Expected 10/21/2026	10,22 Kč 7,40 Kč 6,93 Kč 6,19 Kč View 5,81 Kč 5,62 Kč 5,12 Kč	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 Low Power QUAD 1.1 mA 25nA 250mV LM339QT STMicroelectronics 1: 10,22 Kč 132 000On Order	Mfr. Part No. LM339QT Mouser Part No 511-LM339QT	STMicroelectronics	Analog Comparators Low Power QUAD 1.1 mA 25nA 250mV Learn More about STMicroelectronics stm standard products	Datasheet	132 000On Order On Order Ship Dates Mfr. No: LM339QT Stock: 0 On Order: 30 000 Expected 10/19/2026 102 000 Expected 11/9/2026 Factory Lead Time: 30 Weeks	Cut Tape 10,22 Kč 7,10 Kč 6,33 Kč 5,69 Kč View Reel 4,65 Kč 5,39 Kč 5,20 Kč 5,05 Kč 4,65 Kč 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 LM339ADT STMicroelectronics 1: 7,67 Kč 17 500On Order	Mfr. Part No. LM339ADT Mouser Part No 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. No: LM339ADT Stock: 0 On Order: 10 000 Expected 12/7/2026 7 500 Expected 3/22/2027 Factory Lead Time: 30 Weeks	Cut Tape 7,67 Kč 5,32 Kč 4,75 Kč 4,08 Kč View Reel 3,27 Kč 3,76 Kč 3,59 Kč 3,41 Kč 3,27 Kč 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: 12,12 Kč 4 972On Order	Mfr. Part No. LM339AD Mouser Part No 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. No: LM339AD Stock: 0 On Order: 972 Expected 11/2/2026 4 000 Expected 3/3/2027 Factory Lead Time: 30 Weeks	12,12 Kč 8,36 Kč 7,47 Kč 6,48 Kč View 6,01 Kč 5,74 Kč 5,27 Kč 5,05 Kč 4,95 Kč	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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