Analog Comparators – Mouser Hong Kong

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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 (HKD) 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: HK$2.96 42,845In 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	42,845In Stock	Cut Tape HK$2.96 HK$2.03 HK$1.81 HK$1.56 Reel HK$1.10 View HK$1.45 HK$1.37 HK$1.32 HK$1.09 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: HK$11.43 3,871In Stock	Mfr. Part No. LM139ADT Mouser Part No 511-LM139ADT	STMicroelectronics	Analog Comparators Low power quad voltage comparators Learn More about STMicroelectronics stmlmx39	Datasheet	3,871In Stock	Cut Tape HK$11.43 HK$8.30 HK$7.48 HK$6.62 Reel HK$5.52 View HK$6.20 HK$5.95 HK$5.68 HK$5.38 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: HK$2.38 21,006In Stock 47,500Expected 18/1/2027	Mfr. Part No. LM339DT Mouser Part No 511-LM339DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	21,006In Stock 47,500Expected 18/1/2027	Cut Tape HK$2.38 HK$1.67 HK$1.47 HK$1.25 Reel HK$0.97 View HK$1.15 HK$1.09 HK$1.04 HK$0.937 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: HK$3.04 31,961In 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	31,961In Stock	Cut Tape HK$3.04 HK$2.08 HK$1.85 HK$1.60 View Reel HK$1.27 HK$1.48 HK$1.41 HK$1.35 HK$1.27 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: HK$13.73 2,037In Stock 4,800Expected 29/10/2026	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	2,037In Stock 4,800Expected 29/10/2026	Cut Tape HK$13.73 HK$10.11 HK$9.21 HK$8.14 View Reel HK$4.55 HK$7.65 HK$7.36 HK$7.32 HK$4.55 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: HK$3.62 5,420In Stock 12,500On 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	5,420In Stock 12,500On Order On Order Ship Dates Mfr. No: LM239ADT Stock: 5,420 Can Dispatch Immediately On Order: 5,000 Expected 5/11/2026 7,500 Expected 27/1/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$3.62 HK$2.51 HK$2.24 HK$1.96 View Reel HK$1.45 HK$1.81 HK$1.73 HK$1.64 HK$1.45 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: HK$3.95 4,190In Stock 5,000Expected 25/11/2026	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 25/11/2026	Cut Tape HK$3.95 HK$2.79 HK$2.50 HK$2.16 Reel HK$1.75 View HK$2.01 HK$1.95 HK$1.86 HK$1.64 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: HK$5.01 3,646In Stock 2,000Expected 9/11/2026	Mfr. Part No. LM239D Mouser Part No 511-LM239D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	3,646In Stock 2,000Expected 9/11/2026	HK$5.01 HK$3.57 HK$3.56 HK$3.09 View HK$2.87 HK$2.74 HK$2.62 HK$2.48 HK$2.24	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: HK$5.01 6,509In Stock	Mfr. Part No. LM239DT Mouser Part No 511-LM239DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	6,509In Stock	Cut Tape HK$5.01 HK$3.56 HK$3.19 HK$2.78 View Reel HK$2.26 HK$2.58 HK$2.47 HK$2.37 HK$2.26 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: HK$4.77 1,301In Stock 69,000On 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	1,301In Stock 69,000On Order On Order Ship Dates Mfr. No: LM239QT Stock: 1,301 Can Dispatch Immediately On Order: 27,000 Expected 24/11/2026 42,000 Expected 12/5/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$4.77 HK$3.42 HK$3.07 HK$2.70 View Reel HK$2.29 HK$2.52 HK$2.40 HK$2.30 HK$2.29 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 LM339D STMicroelectronics 1: HK$3.95 119In Stock 4,000Expected 17/11/2026	Mfr. Part No. LM339D Mouser Part No 511-LM339D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	119In Stock 4,000Expected 17/11/2026	HK$3.95 HK$2.86 HK$2.67 HK$2.39 View HK$2.24 HK$2.17 HK$1.98	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: HK$3.95 250In Stock 131,500On 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	250In Stock 131,500On Order On Order Ship Dates Mfr. No: LM339QT Stock: 250 Can Dispatch Immediately On Order: 102,000 Expected 29/10/2026 29,500 Expected 2/11/2026 Factory Lead Time: 30 Weeks	Cut Tape HK$3.95 HK$2.75 HK$2.45 HK$2.20 View Reel HK$1.80 HK$2.08 HK$2.01 HK$1.95 HK$1.80 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: HK$2.96 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 2/11/2026 7,500 Expected 22/3/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$2.96 HK$2.06 HK$1.83 HK$1.58 View Reel HK$1.27 HK$1.45 HK$1.39 HK$1.32 HK$1.27 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 LM239PT STMicroelectronics 1: HK$3.78 9,850On Order	Mfr. Part No. LM239PT Mouser Part No 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. No: LM239PT Stock: 0 On Order: 4,850 Expected 14/12/2026 5,000 Expected 14/5/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$3.78 HK$2.62 HK$2.33 HK$2.01 Reel HK$1.59 View HK$1.87 HK$1.77 HK$1.69 HK$1.55 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 LM339AD STMicroelectronics 1: HK$4.69 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 17/11/2026 4,000 Expected 10/2/2027 Factory Lead Time: 30 Weeks	HK$4.69 HK$3.23 HK$2.89 HK$2.51 View HK$2.33 HK$2.22 HK$2.04 HK$1.95 HK$1.92	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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