Audio Transformers / Signal Transformers

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Telecom Transformers

Bourns Telecom Transformers include LAN transformers, surface-mount chip inductors, power chokes, chip beads, chip bead arrays, and radial-leaded and axial-leaded inductors. This Bourns product line also includes AEC-Q200-compliant transformers for automotive uses.

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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	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package / Case	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers LAN Transformer/CMC,12PIN,100Base,SGL,4.0kVAC, -40 to 105C SM91078L-E Bourns 1: $11.00 A tariff of 21% may be applied if shipping to the United States. 1,145In Stock	Mfr. Part # SM91078L-E Mouser Part # 652-SM91078L-E	Bourns	Audio Transformers / Signal Transformers LAN Transformer/CMC,12PIN,100Base,SGL,4.0kVAC, -40 to 105C Learn More about Bourns sm91078l transformer	Datasheet	1,145In Stock	Cut Tape $11.00 $10.99 $9.10 $8.75 Reel $6.92 View $8.38 $8.16 $5.49 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT		350 uH	4 kV	- 40 C	+ 105 C	1 Channel		30.6 mm	18.6 mm	9.6 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN 10/100 Tin Potted PT61017PEL Bourns 1: $1.57 A tariff of 21% may be applied if shipping to the United States. 24,073In Stock	Mfr. Part # PT61017PEL Mouser Part # 652-PT61017PEL	Bourns	Audio Transformers / Signal Transformers LAN 10/100 Tin Potted Learn More about Bourns power supply solutions	Datasheet	24,073In Stock	Cut Tape $1.57 $1.43 $1.33 $1.29 Reel $1.04 View $1.24 $1.03 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 600	LAN Transformers	Module	SMD/SMT	30 MHz to 100 MHz	350 uH	1.5 kVAC	0 C	+ 70 C	Dual	SMD-16	12.8 mm	6.9 mm	5.65 mm	PT61017PEL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers XFMER 1.2A POE SM51625EL Bourns 1: $2.65 A tariff of 21% may be applied if shipping to the United States. 9,998In Stock 4,550Expected 10/12/2026	Mfr. Part # SM51625EL Mouser Part # 652-SM51625EL	Bourns	Audio Transformers / Signal Transformers XFMER 1.2A POE Learn More about Bourns SM51625EL lan transformer	Datasheet	9,998In Stock 4,550Expected 10/12/2026	Cut Tape $2.65 $2.42 $2.21 $2.13 Reel $1.97 View $1.91 $1.83 $1.80 $1.68 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 350	PoE Transformers		SMD/SMT	300 kHz to 100 MHz	80 uH	1.5 kV	- 40 C	+ 85 C	Quad	SMD-24	17.55 mm	12.2 mm	6 mm	SM51625EL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 350uHmin 1CT:1CT OP -40C to +85C PT61018PEL Bourns 1: $1.34 A tariff of 21% may be applied if shipping to the United States. 4,448In Stock 6,600Expected 12/29/2026	Mfr. Part # PT61018PEL Mouser Part # 652-PT61018PEL	Bourns	Audio Transformers / Signal Transformers 350uHmin 1CT:1CT OP -40C to +85C Learn More about Bourns power supply solutions	Datasheet	4,448In Stock 6,600Expected 12/29/2026	Cut Tape $1.34 $1.22 $1.14 $1.10 Reel $1.02 View $1.06 $0.964 $0.928 $0.913 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 600	LAN Transformers		SMD/SMT	1 MHz to 100 MHz	350 uH	1.5 kV	- 40 C	+ 85 C	Dual	SMD-16	12.8 mm	6.9 mm	5.65 mm	PT61018PEL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C PT61020EL Bourns 1: $2.69 A tariff of 21% may be applied if shipping to the United States. 6,825In Stock 10,500Expected 9/25/2026	Mfr. Part # PT61020EL Mouser Part # 652-PT61020EL	Bourns	Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C Learn More about Bourns power supply solutions	Datasheet	6,825In Stock 10,500Expected 9/25/2026	Cut Tape $2.69 $2.44 $2.23 $2.14 Reel $1.94 View $2.04 $1.84 $1.82 $1.75 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 700	LAN Transformers		SMD/SMT	300 kHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 85 C	Quad		17.62 mm	12.2 mm	6 mm	PT61020EL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER PT61022XEL Bourns 1: $4.56 A tariff of 21% may be applied if shipping to the United States. 1,064In Stock	Mfr. Part # PT61022XEL Mouser Part # 652-PT61022XEL	Bourns	Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER Learn More about Bourns power supply solutions	Datasheet	1,064In Stock	Cut Tape $4.56 $3.76 $3.68 $3.56 Reel $3.05 View $3.22 $3.14 $2.94 A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 500	LAN Transformers	Module	SMD/SMT	300 kHz to 100 MHz	350 uH	1.5 kV	- 40 C	+ 85 C	Single	SMD-24	15.24 mm	13.56 mm	5.79 mm	PT61022XEL	Reel, Cut Tape
Audio Transformers / Signal Transformers LAN Transformer 10/100/1000 Base-T SM51589PEL Bourns 1: $2.87 A tariff of 21% may be applied if shipping to the United States. 1,635In Stock 17,150On Order	Mfr. Part # SM51589PEL Mouser Part # 652-SM51589PEL	Bourns	Audio Transformers / Signal Transformers LAN Transformer 10/100/1000 Base-T Learn More about Bourns SM51589PEL	Datasheet	1,635In Stock 17,150On Order On Order Ship Dates Mfr. #: SM51589PEL Stock: 1,635 Can Ship Immediately On Order: 4,900 Expected 11/4/2026 12,250 Expected 12/8/2026 Factory Lead-Time: 20 Weeks	Cut Tape $2.87 $2.60 $2.41 $2.31 Reel $2.16 View $2.09 $1.98 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 350	LAN Transformers		SMD/SMT	1 MHz to 100 MHz	350 uH	5 kVAC	- 40 C	+ 85 C	Quad	SMD-24	17.55 mm	12.2 mm	6 mm	SM51589PEL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers T1/E1 Potted SM75057PEL Bourns 3,600: $1.79 A tariff of 21% may be applied if shipping to the United States. Non-Stocked Lead-Time 20 Weeks	Mfr. Part # SM75057PEL Mouser Part # 652-SM75057PEL	Bourns	Audio Transformers / Signal Transformers T1/E1 Potted Learn More about Bourns SM7505xPEL T1E1 transformers	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $1.79 $1.62 A tariff of 21% may be applied if shipping to the United States.	Min.: 3,600 Mult.: 600 : 600	LAN Transformers		SMD/SMT	100 kHz	1.2 mH	2 kV	- 40 C	+ 85 C		SMD-16	12.8 mm	6.9 mm	5.65 mm	SM75057PEL	Reel

Telecom Transformers

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