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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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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Mounting Style
	Power Transformers - Board Mount BMS transformer/CMC,12PIN,DUAL, 4.3KVDC SM91509AL-E Bourns 1: $4.65 1,938In Stock	Mfr. Part No. SM91509AL-E Mouser Part No 652-SM91509AL-E	Bourns	Power Transformers - Board Mount BMS transformer/CMC,12PIN,DUAL, 4.3KVDC Learn More about Bourns bms transformers	Datasheet	1,938In Stock	Cut Tape $4.65 $4.40 $4.14 $4.01 View Reel $3.30 $3.90 $3.73 $3.61 $3.31 $3.30 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		PCB Mount
	Audio Transformers / Signal Transformers LAN 10/100 Tin Potted PT61017PEL Bourns 1: $1.57 23,887In Stock	Mfr. Part No. PT61017PEL Mouser Part No 652-PT61017PEL	Bourns	Audio Transformers / Signal Transformers LAN 10/100 Tin Potted Learn More about Bourns power supply solutions	Datasheet	23,887In Stock	Cut Tape $1.57 $1.43 $1.33 $1.29 Reel $1.03 View $1.24 $1.00 $0.983 MouseReel Available	Min.: 1 Mult.: 1 : 600
	Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C PT61020EL Bourns 1: $2.69 15,813In Stock	Mfr. Part No. PT61020EL Mouser Part No 652-PT61020EL	Bourns	Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C Learn More about Bourns power supply solutions	Datasheet	15,813In Stock	Cut Tape $2.69 $2.44 $2.27 $2.19 Reel $1.97 View $2.08 $1.87 $1.83 $1.78 MouseReel Available	Min.: 1 Mult.: 1 : 700
	Audio Transformers / Signal Transformers XFMER 1.2A POE SM51625EL Bourns 1: $2.61 10,568In Stock	Mfr. Part No. SM51625EL Mouser Part No 652-SM51625EL	Bourns	Audio Transformers / Signal Transformers XFMER 1.2A POE Learn More about Bourns SM51625EL lan transformer	Datasheet	10,568In Stock	Cut Tape $2.61 $2.38 $2.26 $2.17 Reel $1.93 View $1.90 $1.85 $1.81 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 350
	Audio Transformers / Signal Transformers LAN Transformer/CMC,12PIN,100Base,SGL,4.0kVAC, -40 to 105C SM91078L-E Bourns 1: $10.97 145In Stock	Mfr. Part No. SM91078L-E Mouser Part No 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	145In Stock	Cut Tape $10.97 $9.06 $8.71 $8.34 Reel $5.69 View $6.49 $5.62 $5.55 MouseReel Available	Min.: 1 Mult.: 1 : 400
	Audio Transformers / Signal Transformers 350uHmin 1CT:1CT OP -40C to +85C PT61018PEL Bourns 1: $1.34 4,156In Stock 6,600Expected 2026/12/29	Mfr. Part No. PT61018PEL Mouser Part No 652-PT61018PEL	Bourns	Audio Transformers / Signal Transformers 350uHmin 1CT:1CT OP -40C to +85C Learn More about Bourns power supply solutions	Datasheet	4,156In Stock 6,600Expected 2026/12/29	Cut Tape $1.34 $1.22 $1.14 $1.08 Reel $1.02 View $1.06 $0.964 $0.928 $0.913 MouseReel Available	Min.: 1 Mult.: 1 : 600
	Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER PT61022XEL Bourns 1: $4.56 1,050In Stock	Mfr. Part No. PT61022XEL Mouser Part No 652-PT61022XEL	Bourns	Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER Learn More about Bourns power supply solutions	Datasheet	1,050In Stock	Cut Tape $4.56 $3.76 $3.56 $3.34 Reel $3.15 View $3.24 $2.99 $2.97	Min.: 1 Mult.: 1 : 500
	Audio Transformers / Signal Transformers LAN Transformer 10/100/1000 Base-T SM51589PEL Bourns 1: $2.87 3,086In Stock 15,050On Order	Mfr. Part No. SM51589PEL Mouser Part No 652-SM51589PEL	Bourns	Audio Transformers / Signal Transformers LAN Transformer 10/100/1000 Base-T Learn More about Bourns SM51589PEL	Datasheet	3,086In Stock 15,050On Order On Order Ship Dates Mfr. No: SM51589PEL Stock: 3,086 Can Dispatch Immediately On Order: 2,800 Pending 12,250 Expected 2026/12/08 Factory Lead Time: 20 Weeks	Cut Tape $2.87 $2.61 $2.42 $2.35 Reel $2.33 View $2.26 $2.17 MouseReel Available	Min.: 1 Mult.: 1 : 350
	Audio Transformers / Signal Transformers T1/E1 Potted SM75057PEL Bourns 3,600: $1.79 Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. SM75057PEL Mouser Part No 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 $1.65	Min.: 3,600 Mult.: 600 : 600