Audio Transformers / Signal Transformers

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LAN Discrete Transformer Modules

Pulse Electronics LAN Discrete Transformer Modules are optimized for all major LAN transceivers. These modules provide electrical circuit isolation that meets IEEE 802.3 standards while maintaining the signal integrity needed for the most demanding applications. Pulse Electronics LAN Discrete Transformer Modules feature a peak reflow temperature rating of +245°C. Other features include 1kHz to 100MHz frequency range, 1Ω impedance, 350µH inductance, and 1.5kV isolation voltage.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Termination Style	Frequency Range	Inductance	Primary Impedance	Secondary Impedance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port HX5004ENL Pulse Electronics 1: $7.54 1,366In Stock	Mfr. Part No. HX5004ENL Mouser Part No 673-HX5004ENL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,366In Stock	$7.54 $5.68 $5.43 $4.61 View $4.58 $4.54	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	17.5 mm	12.2 mm	5.72 mm	1000Base-T	Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port H1112NL Pulse Electronics 1: $5.36 441In Stock	Mfr. Part No. H1112NL Mouser Part No 673-H1112NL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	441In Stock	$5.36 $4.73 $4.37 $4.30 View $4.28 $4.09 $4.04 $3.78 $3.77	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	14.81 mm	14.73 mm	4.88 mm	H1112	Tube
Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port HX1178NL Pulse Electronics 1: $8.11 417In Stock	Mfr. Part No. HX1178NL Mouser Part No 673-HX1178NL	Pulse Electronics	Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	417In Stock	$8.11 $6.91 $6.40 $5.93 View $5.57 $5.33 $5.26 $5.25	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	25.4 mm	12.83 mm	6.22 mm		Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por H1260NL Pulse Electronics 1: $4.61 384In Stock	Mfr. Part No. H1260NL Mouser Part No 673-H1260NL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	384In Stock	$4.61 $3.97 $3.94 $3.61 View $3.50 $3.11 $2.81 $2.76	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	12.7 mm	9.65 mm	6 mm		Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 1-Port H5019NL Pulse Electronics 1: $10.94 184In Stock	Mfr. Part No. H5019NL Mouser Part No 673-H5019NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	184In Stock	$10.94 $9.72 $9.32 $9.11 View $8.90 $8.42 $7.84 $7.63 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	19.81 mm	19.56 mm	2.54 mm		Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port H5020NLT Pulse Electronics 1: $18.21 87In Stock	Mfr. Part No. H5020NLT Mouser Part No 673-H5020NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port Learn More about Pulse Electronics pulselantrans	Datasheet	87In Stock	Cut Tape $18.21 $15.46 $14.69 $14.24 Reel $13.97 View $12.54 $12.50 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Dual	27.94 mm	10.92 mm	7.54 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port H2009NL Pulse Electronics 1: $9.54 233In Stock	Mfr. Part No. H2009NL Mouser Part No 673-H2009NL	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port Learn More about Pulse Electronics pulselantrans	Datasheet	233In Stock	$9.54 $8.13 $7.80 $7.55 View $6.11 $6.08	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Dual	15.11 mm	13.16 mm	6.12 mm	H2009	Tube
Audio Transformers / Signal Transformers 10/100Base-TX SMD Non-PoE 1-Port H1081NL Pulse Electronics 1: $7.49 189In Stock	Mfr. Part No. H1081NL Mouser Part No 673-H1081NL	Pulse Electronics	Audio Transformers / Signal Transformers 10/100Base-TX SMD Non-PoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	189In Stock	$7.49 $6.42 $6.15 $5.97 View $5.77 $5.54 $4.79 $4.70 $4.68	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.78 mm	13.72 mm	5.84 mm		Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por H1102NL Pulse Electronics 1: $5.11 6,203In Stock 4,640Expected 2026/09/29	Mfr. Part No. H1102NL Mouser Part No 673-H1102NL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	6,203In Stock 4,640Expected 2026/09/29	$5.11 $4.37 $3.71 $3.63 $3.58	Min.: 1 Mult.: 1 Max.: 160	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	12.7 mm	9.53 mm	6.09 mm		Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por H5007NLT Pulse Electronics 1: $8.30 10,705In Stock	Mfr. Part No. H5007NLT Mouser Part No 673-H5007NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	10,705In Stock	Cut Tape $8.30 $7.27 $6.97 $6.66 Reel $5.95 View $6.47 $5.78 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,200 : 300	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.53 mm	16 mm	5.51 mm	H5007	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port HX0068ANL Pulse Electronics 1: $7.28 3,279In Stock	Mfr. Part No. HX0068ANL Mouser Part No 673-HX0068ANL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	3,279In Stock	$7.28 $6.28 $5.23 $5.08 $4.97	Min.: 1 Mult.: 1 Max.: 160	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	12.7 mm	9.652 mm	2.083 mm	100Base-TX	Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port HX1188NLT Pulse Electronics 1: $3.73 10,174In Stock 13,200Expected 2027/03/01	Mfr. Part No. HX1188NLT Mouser Part No 673-HX1188NLT	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	10,174In Stock 13,200Expected 2027/03/01	Cut Tape $3.73 $3.38 $3.11 $3.00 Reel $2.87 View $2.87 $2.72 $2.66 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,400 : 600	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	12.7 mm	9.53 mm	5.97 mm	HX	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por HX5004NLT Pulse Electronics 1: $9.90 5,414In Stock	Mfr. Part No. HX5004NLT Mouser Part No 673-HX5004NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	5,414In Stock	Cut Tape $9.90 $8.64 $8.29 $8.04 Reel $7.32 View $7.78 $7.07 $6.99 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,200 : 300	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	17.53 mm	16 mm	5.51 mm	HX5004	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BaseT SMD PoE 325uH 1-Port HX5008NL Pulse Electronics 1: $12.01 6,239In Stock	Mfr. Part No. HX5008NL Mouser Part No 673-HX5008NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD PoE 325uH 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	6,239In Stock	$12.01 $10.54 $9.20 $8.98 $8.84	Min.: 1 Mult.: 1 Max.: 140	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	13.64 mm	13.64 mm	5.72 mm	HX	Tube
Audio Transformers / Signal Transformers 1000Base-T NonPoE 350uH .65Ohms 1-Port HX5120NL Pulse Electronics 1: $18.40 1,803In Stock 2,730Expected 2026/12/09	Mfr. Part No. HX5120NL Mouser Part No 673-HX5120NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000Base-T NonPoE 350uH .65Ohms 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,803In Stock 2,730Expected 2026/12/09	$18.40 $16.72 $15.87 $15.44 $15.04	Min.: 1 Mult.: 1 Max.: 120	LAN Transformers	Module	SMD/SMT	100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single	16.51 mm	9.14 mm	2.08 mm	1000Base-T	Tube
Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port H1012NL Pulse Electronics 1: $5.78 849In Stock	Mfr. Part No. H1012NL Mouser Part No 673-H1012NL	Pulse Electronics	Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	849In Stock	$5.78 $4.54 $4.37 $4.34	Min.: 1 Mult.: 1 Max.: 80	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.78 mm	12.95 mm	9.4 mm		Tube
Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port H1012NLT Pulse Electronics 1: $5.70 1,247In Stock	Mfr. Part No. H1012NLT Mouser Part No 673-H1012NLT	Pulse Electronics	Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	1,247In Stock	Cut Tape $5.70 $5.02 $4.83 $4.68 Reel $3.77 View $4.11 $3.74 $3.54 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.78 mm	12.95 mm	9.4 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por H1100NL Pulse Electronics 1: $4.85 600In Stock	Mfr. Part No. H1100NL Mouser Part No 673-H1100NL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	600In Stock	$4.85 $4.26 $4.04 $3.91 View $3.81 $3.73 $3.15 $3.11	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	12.7 mm	7.11 mm	5.97 mm	H1100	Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 4-Por H1164NLT Pulse Electronics 1: $12.98 797In Stock	Mfr. Part No. H1164NLT Mouser Part No 673-H1164NLT	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 4-Por Learn More about Pulse Electronics pulselantrans	Datasheet	797In Stock	Cut Tape $12.98 $11.22 $10.83 $10.48 Reel $9.32 View $10.19 $9.13 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	LAN Transformers	Module	SMD/SMT	1 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Quad	28.58 mm	16 mm	5.84 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port H2019NL Pulse Electronics 1: $8.04 464In Stock 1,000Expected 2026/12/21	Mfr. Part No. H2019NL Mouser Part No 673-H2019NL	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	464In Stock 1,000Expected 2026/12/21	$8.04 $6.56 $5.93 $5.75 $5.54	Min.: 1 Mult.: 1 Max.: 160	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	12.7 mm	9.4 mm	5.97 mm		Tube
Audio Transformers / Signal Transformers 1000Base-T SMD 1-Port H5004NL Pulse Electronics 1: $10.96 204In Stock	Mfr. Part No. H5004NL Mouser Part No 673-H5004NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000Base-T SMD 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	204In Stock	$10.96 $9.54 $9.13 $8.76 View $8.51 $8.16 $7.87	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.53 mm	12.2 mm	5.51 mm	H5004	Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por H5007NL Pulse Electronics 1: $8.26 1,305In Stock 2,975Expected 2026/10/22	Mfr. Part No. H5007NL Mouser Part No 673-H5007NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	1,305In Stock 2,975Expected 2026/10/22	$8.26 $7.07 $5.97 $5.83 $5.69	Min.: 1 Mult.: 1 Max.: 100	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	17.53 mm	12.2 mm	5.51 mm	H5007	Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Port H5008NL Pulse Electronics 1: $11.00 358In Stock	Mfr. Part No. H5008NL Mouser Part No 673-H5008NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	358In Stock	$11.00 $9.89 $8.84 $8.61 View $8.55 $7.91 $7.80 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	13.64 mm	18.8 mm	5.72 mm	5008	Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por H5008NLT Pulse Electronics 1: $7.47 378In Stock	Mfr. Part No. H5008NLT Mouser Part No 673-H5008NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por Learn More about Pulse Electronics pulselantrans	Datasheet	378In Stock	Cut Tape $7.47 $6.55 $6.28 $6.26 Reel $5.73 View $6.07 $5.66 $4.91 $4.76 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single	13.64 mm	13.64 mm	5.72 mm	5008	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port H5084NLT Pulse Electronics 1: $5.71 676In Stock	Mfr. Part No. H5084NLT Mouser Part No 673-H5084NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	676In Stock	Cut Tape $5.71 $4.76 $4.56 $4.42 Reel $3.72 View $3.95 $3.81 $3.71 $3.68 MouseReel Available	Min.: 1 Mult.: 1 : 700	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH	1 Ohms	1 Ohms	1.5 kV	0 C	+ 70 C	Single	15.11 mm	10.77 mm	4.01 mm		Reel, Cut Tape, MouseReel