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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
	Power Transformers - Board Mount BMS transformer/CMC,12PIN,DUAL, 4.3KVDC SM91509AL-E Bourns 1: $6.05 1,938In Stock	Mfr. Part # SM91509AL-E Mouser Part # 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 $6.05 $5.72 $5.38 $5.21 View Reel $4.29 $5.06 $4.85 $4.69 $4.30 $4.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
	Audio Transformers / Signal Transformers LAN 10/100 Tin Potted PT61017PEL Bourns 1: $2.04 23,887In 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	23,887In Stock	Cut Tape $2.04 $1.86 $1.73 $1.68 Reel $1.34 View $1.61 $1.30 $1.28 MouseReel Available	Min.: 1 Mult.: 1 : 600
	Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C PT61020EL Bourns 1: $3.50 15,813In Stock	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	15,813In Stock	Cut Tape $3.50 $3.17 $2.95 $2.85 Reel $2.55 View $2.70 $2.43 $2.37 $2.31 MouseReel Available	Min.: 1 Mult.: 1 : 700
	Audio Transformers / Signal Transformers XFMER 1.2A POE SM51625EL Bourns 1: $3.39 10,568In Stock	Mfr. Part # SM51625EL Mouser Part # 652-SM51625EL	Bourns	Audio Transformers / Signal Transformers XFMER 1.2A POE Learn More about Bourns SM51625EL lan transformer	Datasheet	10,568In Stock	Cut Tape $3.39 $3.09 $2.93 $2.82 Reel $2.51 View $2.47 $2.41 $2.35 $2.30 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: $14.26 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	145In Stock	Cut Tape $14.26 $11.78 $11.32 $10.84 Reel $7.40 View $8.44 $7.31 Quote MouseReel Available	Min.: 1 Mult.: 1 : 400
	Audio Transformers / Signal Transformers 350uHmin 1CT:1CT OP -40C to +85C PT61018PEL Bourns 1: $1.74 4,156In 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	4,156In Stock 6,600Expected 12/29/2026	Cut Tape $1.74 $1.59 $1.48 $1.40 Reel $1.33 View $1.38 $1.25 $1.21 $1.19 MouseReel Available	Min.: 1 Mult.: 1 : 600
	Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER PT61022XEL Bourns 1: $5.93 1,050In Stock	Mfr. Part # PT61022XEL Mouser Part # 652-PT61022XEL	Bourns	Audio Transformers / Signal Transformers MAGNETICS LAN TRANSFORMER Learn More about Bourns power supply solutions	Datasheet	1,050In Stock	Cut Tape $5.93 $4.89 $4.63 $4.34 Reel $4.10 View $4.21 $3.89 $3.85	Min.: 1 Mult.: 1 : 500
	Audio Transformers / Signal Transformers LAN Transformer 10/100/1000 Base-T SM51589PEL Bourns 1: $3.73 3,086In Stock 15,050On 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	3,086In Stock 15,050On Order On Order Ship Dates Mfr. #: SM51589PEL Stock: 3,086 Can Ship Immediately On Order: 2,800 Pending 12,250 Expected 12/8/2026 Factory Lead-Time: 20 Weeks	Cut Tape $3.73 $3.38 $3.15 $3.06 Reel $3.03 View $2.94 $2.73 $2.67 $2.63 MouseReel Available	Min.: 1 Mult.: 1 : 350
	Audio Transformers / Signal Transformers T1/E1 Potted SM75057PEL Bourns 3,600: $2.33 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 $2.33 $2.15	Min.: 3,600 Mult.: 600 : 600