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Transformers

Transformers are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many transformer manufacturers including Bel, Boums, Tamura, Pulse Electronics, TDK, Triad Magnetics, Vacuumschmelze, Wurth Elektronik & more. Please view our selection of transformers below.

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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.	Power Rating	Mounting Style
Current Transformers - Board Mount CST1 1:70 20A 980uH AEC-Q200 CST1-070LC Coilcraft 1: $3.45 159In Stock	Mfr. Part No. CST1-070LC Mouser Part No 994-CST1-070LC	Coilcraft	Current Transformers - Board Mount CST1 1:70 20A 980uH AEC-Q200 Learn More about Coilcraft aec q200 current sense transformers	Datasheet	159In Stock	Cut Tape $3.45 $2.83 $2.44 $2.37 Reel $2.27 View $2.29 $2.24 $2.15 $2.12 MouseReel Available	Min.: 1 Mult.: 1 : 250
Current Transformers - Board Mount 40A 19.2mH 3.8 Ohms AEC-Q200 CST2010-150LD Coilcraft 1: $3.97 40In Stock 300Expected 2026/11/26	Mfr. Part No. CST2010-150LD Mouser Part No 994-CST2010-150LD	Coilcraft	Current Transformers - Board Mount 40A 19.2mH 3.8 Ohms AEC-Q200 Learn More about Coilcraft aec q200 current sense transformers	Datasheet	40In Stock 300Expected 2026/11/26	Cut Tape $3.97 $3.26 $2.81 $2.73 Reel $2.61 View $2.64 $2.58 $2.48 $2.44 MouseReel Available	Min.: 1 Mult.: 1 : 300		SMD/SMT
Audio Transformers / Signal Transformers FA2672 SMT Flyback For Si3401, Si3402 FA2672-ALD Coilcraft 1: $5.08 300In Stock 5,000On Order	Mfr. Part No. FA2672-ALD Mouser Part No 994-FA2672-ALD	Coilcraft	Audio Transformers / Signal Transformers FA2672 SMT Flyback For Si3401, Si3402 Learn More about Coilcraft power magnetics	Datasheet	300In Stock 5,000On Order On Order Ship Dates Mfr. No: FA2672-ALD Stock: 300 Can Dispatch Immediately On Order: 3,600 Expected 2026/11/23 1,400 Expected 2026/12/11 Factory Lead Time: 10 Weeks	Cut Tape $5.08 $4.02 $3.87 $3.61 Reel $3.42 View $3.28 $3.23 $3.12 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200	10 W
Audio Transformers / Signal Transformers HA3802 Flyback For TI TPS23753 HA3802-BLD Coilcraft 1: $6.55 2In Stock 200Expected 2026/12/18	Mfr. Part No. HA3802-BLD Mouser Part No 994-HA3802-BLD	Coilcraft	Audio Transformers / Signal Transformers HA3802 Flyback For TI TPS23753 Learn More about Coilcraft power magnetics	Datasheet	2In Stock 200Expected 2026/12/18	Cut Tape $6.55 $5.59 $5.36 $5.20 Reel $4.58 View $4.83 $4.41 $4.28 MouseReel Available	Min.: 1 Mult.: 1 : 200	10 W
Audio Transformers / Signal Transformers POE13F Flyback PoE 13uH 5.0 V 2.6 A POE13F-50LD Coilcraft 1: $5.33 167In Stock	Mfr. Part No. POE13F-50LD Mouser Part No 994-POE13F-50LD	Coilcraft	Audio Transformers / Signal Transformers POE13F Flyback PoE 13uH 5.0 V 2.6 A Learn More about Coilcraft poexf flyback transformers	Datasheet	167In Stock	Cut Tape $5.33 $4.22 $4.06 $3.79 Reel $3.59 View $3.44 $3.38 $3.27 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200
Audio Transformers / Signal Transformers POE13P Flyback PoE 127uH 24 V 0.54 A POE13P-24LD Coilcraft 1: $3.64 328In Stock 700On Order	Mfr. Part No. POE13P-24LD Mouser Part No 994-POE13P-24LD	Coilcraft	Audio Transformers / Signal Transformers POE13P Flyback PoE 127uH 24 V 0.54 A Learn More about Coilcraft poexp flyback transformers	Datasheet	328In Stock 700On Order	Cut Tape $3.64 $2.95 $2.84 $2.66 Reel $2.55 View $2.49 $2.37 $2.30 $2.22 MouseReel Available	Min.: 1 Mult.: 1 : 175
Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.15-400 MHz PWB3040LC Coilcraft 1: $3.22 239In Stock	Mfr. Part No. PWB3040LC Mouser Part No 994-PWB3040LC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.15-400 MHz	Datasheet	239In Stock	Cut Tape $3.22 $2.66 Reel $2.26 $2.20 $2.11 View $2.04 $1.97 MouseReel Available	Min.: 1 Mult.: 1 : 250
Power Transformers - Board Mount Q4435 Flybck Regltor 8uH 5.0 V 1.6 A Q4435-BL Coilcraft 1: $8.19 25In Stock	Mfr. Part No. Q4435-BL Mouser Part No 994-Q4435-BL	Coilcraft	Power Transformers - Board Mount Q4435 Flybck Regltor 8uH 5.0 V 1.6 A Learn More about Coilcraft power magnetics	Datasheet	25In Stock	$8.19 $6.63 $6.37 $6.18 View $5.98 $5.71 $5.54 $5.36 $5.20	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB1010-1-SMLD Coilcraft 1: $3.72 161In Stock 500Expected 2027/01/08	Mfr. Part No. SWB1010-1-SMLD Mouser Part No 994-SWB1010-1-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	161In Stock 500Expected 2027/01/08	Cut Tape $3.72 $3.02 $2.99 Reel $2.54 $2.42 View $2.35 $2.28 MouseReel Available	Min.: 1 Mult.: 1 : 500	250 mW (1/4 W)
Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W WB1-1L Coilcraft 1: $5.47 26In Stock 70Expected 2026/12/21	Mfr. Part No. WB1-1L Mouser Part No 994-WB1-1L	Coilcraft	Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W	Datasheet	26In Stock 70Expected 2026/12/21	$5.47 $4.33 $4.18 $3.90 View $3.69 $3.54 $3.47 $3.36 Quote	Min.: 1 Mult.: 1	250 mW (1/4 W)
Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:8 0.150-600 MHz WBC8-1LC Coilcraft 1: $5.92 18In Stock 750Expected 2026/12/11	Mfr. Part No. WBC8-1LC Mouser Part No 994-WBC8-1LC	Coilcraft	Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:8 0.150-600 MHz	Datasheet	18In Stock 750Expected 2026/12/11	Cut Tape $5.92 $4.61 $4.41 $4.28 Reel $3.65 View $4.13 $3.91 $3.78 $3.63 MouseReel Available	Min.: 1 Mult.: 1 : 750
Audio Transformers / Signal Transformers Y8844 For NCP1201 3.5uH 6.5 V 0.54 A Y8844-AL Coilcraft 1: $10.82 16In Stock	Mfr. Part No. Y8844-AL Mouser Part No 994-Y8844-AL	Coilcraft	Audio Transformers / Signal Transformers Y8844 For NCP1201 3.5uH 6.5 V 0.54 A Learn More about Coilcraft power magnetics	Datasheet	16In Stock	$10.82 $9.56 $9.11 $8.93 View $8.65 $8.30 $8.04 $7.79	Min.: 1 Mult.: 1	3.5 W
Audio Transformers / Signal Transformers FIBRE CH ISO MOD SMD Dual Core 531.25MHz TG01-FC07N1RL HALO Electronics 1: $11.62 399In Stock	Mfr. Part No. TG01-FC07N1RL Mouser Part No 493-TG01-FC07N1RL	HALO Electronics	Audio Transformers / Signal Transformers FIBRE CH ISO MOD SMD Dual Core 531.25MHz Learn More about HALO Electronics halo ethernet transformers	Datasheet	399In Stock	$11.62 $7.50 $6.12 $4.95 View $4.15 $3.58 $3.42 $3.33	Min.: 1 Mult.: 1
Pulse Transformers MDL,SIN,1GD,1:1,SMT,TU, NPB H5143NL Pulse Electronics 1: $8.99 227In Stock	Mfr. Part No. H5143NL Mouser Part No 673-H5143NL	Pulse Electronics	Pulse Transformers MDL,SIN,1GD,1:1,SMT,TU, NPB	Datasheet	227In Stock	$8.99 $7.70 $7.33 $7.11 View $6.88 $5.62 $5.52 $5.41 $5.40	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers T-1250SCTNL iNRCORE 1: $79.34 21In Stock	Mfr. Part No. T-1250SCTNL Mouser Part No 673-T-1250SCTNL	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	21In Stock	$79.34 $70.95 $65.13 $64.19 View $63.29 Quote	Min.: 1 Mult.: 1
Current Transformers - Industrial Split-Core Current Transformer; 20 A Input; 0-50 mA/0.333 V Output; 1 m 2-wire Twisted Pair Cable BWA-CURRENT-TRANSFORMER-20A Banner Engineering 1: $35.01 1In Stock 7Expected 2026/11/17	Mfr. Part No. BWA-CURRENT-TRANSFORMER-20A Mouser Part No 778-BWACURTRNSFRM20A	Banner Engineering	Current Transformers - Industrial Split-Core Current Transformer; 20 A Input; 0-50 mA/0.333 V Output; 1 m 2-wire Twisted Pair Cable	Datasheet	1In Stock 7Expected 2026/11/17	$35.01	Min.: 1 Mult.: 1		Free Hanging
Current Transformers - Board Mount 40A 7.07Mh 2.5ohms AEC-Q200 CST2020-100L Coilcraft 1: $3.40 356In Stock	Mfr. Part No. CST2020-100L Mouser Part No 994-CST2020-100L	Coilcraft	Current Transformers - Board Mount 40A 7.07Mh 2.5ohms AEC-Q200 Learn More about Coilcraft aec q200 current sense transformers	Datasheet	356In Stock	$3.40 $2.78 $2.41 $2.40 $2.02	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers NA5730 SMT Flyback For TI TPS23751/2 NA5730-ALD Coilcraft 1: $6.97 46In Stock	Mfr. Part No. NA5730-ALD Mouser Part No 994-NA5730-ALD	Coilcraft	Audio Transformers / Signal Transformers NA5730 SMT Flyback For TI TPS23751/2 Learn More about Coilcraft power magnetics	Datasheet	46In Stock	Cut Tape $6.97 $5.97 $5.72 $5.54 Reel $4.88 View $5.14 $4.70 $4.56 MouseReel Available	Min.: 1 Mult.: 1 : 175
Audio Transformers / Signal Transformers Flyback PoE 21W 21uH 3.3V 6.2A POE21PR-33ED Coilcraft 1: $6.40 55In Stock	Mfr. Part No. POE21PR-33ED Mouser Part No 994-POE21PR-33ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 21W 21uH 3.3V 6.2A Learn More about Coilcraft flyback forward poe transformers	Datasheet	55In Stock	Cut Tape $6.40 $4.97 $4.76 $4.62 Reel $4.21 View $4.47 $4.07 $3.93 $3.91 MouseReel Available	Min.: 1 Mult.: 1 : 150	21 W
Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 3.3 V 0.91 A POE30P-33LD Coilcraft 1: $3.72 127In Stock 700On Order	Mfr. Part No. POE30P-33LD Mouser Part No 994-POE30P-33LD	Coilcraft	Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 3.3 V 0.91 A Learn More about Coilcraft poexp flyback transformers	Datasheet	127In Stock 700On Order	Cut Tape $3.72 $3.02 $2.90 $2.72 Reel $2.61 View $2.54 $2.42 $2.35 $2.28 MouseReel Available	Min.: 1 Mult.: 1 : 350
Audio Transformers / Signal Transformers PWB Wideband RF 1:2 0.130-285 MHz PWB-2-CLC Coilcraft 1: $5.44 301In Stock 500Expected 2027/01/08	Mfr. Part No. PWB-2-CLC Mouser Part No 994-PWB-2-CLC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:2 0.130-285 MHz	Datasheet	301In Stock 500Expected 2027/01/08	Cut Tape $5.44 $4.31 Reel $3.68 $3.51 $3.47 View $3.34 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB3010-SMLD Coilcraft 1: $4.11 1In Stock 500Expected 2026/12/18	Mfr. Part No. SWB3010-SMLD Mouser Part No 994-SWB3010-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	1In Stock 500Expected 2026/12/18	Cut Tape $4.11 $3.34 $3.30 Reel $2.81 $2.67 View $2.59 $2.51 MouseReel Available	Min.: 1 Mult.: 1 : 500	250 mW (1/4 W)
Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W WB4-1HL Coilcraft 1: $5.04 43In Stock	Mfr. Part No. WB4-1HL Mouser Part No 994-WB4-1HL	Coilcraft	Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W	Datasheet	43In Stock	$5.04 $3.97 $3.83 $3.57 View $3.40 $3.26 $3.19 $3.08 Quote	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port H5020NLT Pulse Electronics 1: $18.24 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 $18.24 $16.35 $15.76 $15.26 Reel $14.15 View $14.78 $12.84 $12.80 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250
Power Transformers - Board Mount Transformers for DC-DC Converters, DC/DC Converter, ER11, 100 H, TR=1:1:1:1 B78334B1033A003 TDK 1: $7.49 283In Stock	Mfr. Part No. B78334B1033A003 Mouser Part No 871-B78334B1033A3	TDK	Power Transformers - Board Mount Transformers for DC-DC Converters, DC/DC Converter, ER11, 100 H, TR=1:1:1:1	Datasheet	283In Stock	Cut Tape $7.49 $6.45 $6.19 $6.00 Reel $5.38 View $5.82 $5.55 $5.20 $4.83	Min.: 1 Mult.: 1 : 600