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Transformers

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

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RoHS Compliant

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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	Primary Voltage Rating	Secondary Voltage Rating	Mounting Style
Audio Transformers / Signal Transformers RF XFMR / SURF MOUNT / RoHS ADTT1.5-1+ Mini-Circuits 1: $6.54 197In Stock	Mfr. Part No. ADTT1.5-1+ Mouser Part No 139-ADTT1.5-1	Mini-Circuits	Audio Transformers / Signal Transformers RF XFMR / SURF MOUNT / RoHS	Datasheet	197In Stock	Cut Tape $6.54 Reel $6.54 MouseReel Available	Min.: 1 Mult.: 1 : 100
Audio Transformers / Signal Transformers 1:2.5 CORE & WIRE Transformer, 0.01 - 100 MHz, 50? T2.5-6-KK81+ Mini-Circuits 1: $7.26 55In Stock 100Expected 2027/02/03	Mfr. Part No. T2.5-6-KK81+ Mouser Part No 139-T2.5-6-KK81+	Mini-Circuits	Audio Transformers / Signal Transformers 1:2.5 CORE & WIRE Transformer, 0.01 - 100 MHz, 50?	Datasheet	55In Stock 100Expected 2027/02/03	Cut Tape $7.26 $6.84 $6.61 $6.44 Reel $6.44 MouseReel Available	Min.: 1 Mult.: 1 : 100	250 mW
Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS TC4-14G2+ Mini-Circuits 1: $4.33 361In Stock	Mfr. Part No. TC4-14G2+ Mouser Part No 139-TC4-14G2	Mini-Circuits	Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS	Datasheet	361In Stock	Cut Tape $4.33 $3.16 $2.69 $2.58 Reel $2.58 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS TC4-25G2+ Mini-Circuits 1: $3.99 474In Stock 500Expected 2026/10/28	Mfr. Part No. TC4-25G2+ Mouser Part No 139-TC4-25G2	Mini-Circuits	Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS	Datasheet	474In Stock 500Expected 2026/10/28	Cut Tape $3.99 $2.85 $2.23 Reel $2.23 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS TC8-1G2+ Mini-Circuits 1: $3.90 219In Stock	Mfr. Part No. TC8-1G2+ Mouser Part No 139-TC8-1G2	Mini-Circuits	Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS	Datasheet	219In Stock	Cut Tape $3.90 $2.74 $2.26 $2.06 Reel $2.06 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS TCML1-19+ Mini-Circuits 1: $3.40 161In Stock	Mfr. Part No. TCML1-19+ Mouser Part No 139-TCML1-19	Mini-Circuits	Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS	Datasheet	161In Stock	Cut Tape $3.40 $2.26 $1.78 $1.67 Reel $1.67 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh TG04-1505NSRL HALO Electronics 1: $6.65 396In Stock	Mfr. Part No. TG04-1505NSRL Mouser Part No 493-TG04-1505NSRL	HALO Electronics	Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh Learn More about HALO Electronics halo telecom transformers	Datasheet	396In Stock	$6.65 $4.33 $3.52 $2.85 View $2.21 $2.09	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 10/100BASE-TX TG111-E12NYNRLTR HALO Electronics 1: $14.39 13In Stock 330Expected 2027/06/18	Mfr. Part No. TG111-E12NYNRLTR Mouser Part No 493-TG111-E12NYNRLTR	HALO Electronics	Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 10/100BASE-TX Learn More about HALO Electronics halo gigabit ethernet transformers	Datasheet	13In Stock 330Expected 2027/06/18	Cut Tape $14.39 $9.28 $7.57 $6.12 Reel $5.14 View $4.43 $4.23 $4.12 MouseReel Available	Min.: 1 Mult.: 1 : 330
Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P 1-Port w/Choke TG1G-S001NZRL HALO Electronics 1: $14.13 348In Stock	Mfr. Part No. TG1G-S001NZRL Mouser Part No 493-TG1G-S001NZRL	HALO Electronics	Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P 1-Port w/Choke Learn More about HALO Electronics halo gigabit ethernet transformers	Datasheet	348In Stock	$14.13 $9.12 $7.43 $6.01 View $5.05 $4.71 $4.36 Quote	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 2.5GBaseT PoE+ 1Port 60W 600mA Nano TG2G-HPE3NYNLF HALO Electronics 1: $20.78 111In Stock	Mfr. Part No. TG2G-HPE3NYNLF Mouser Part No 493-TG2G-HPE3NYNLF	HALO Electronics	Audio Transformers / Signal Transformers 2.5GBaseT PoE+ 1Port 60W 600mA Nano	Datasheet	111In Stock	$20.78 $13.41 $9.77 $7.44 View $6.87 $6.50 $6.49 $6.45 Quote	Min.: 1 Mult.: 1	60 W
Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:2.5 TG92-2006N1LF HALO Electronics 1: $5.84 212In Stock	Mfr. Part No. TG92-2006N1LF Mouser Part No 493-TG92-2006N1LF	HALO Electronics	Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:2.5 Learn More about HALO Electronics halo 10base t ethernet transformers	Datasheet	212In Stock	$5.84 $3.77 $3.08 $2.49 View $2.08 $1.81 $1.72 $1.67	Min.: 1 Mult.: 1
Pulse Transformers ISO MOD SMD GullWing 3kVrms 0.9Ohm 6pin TGMR-350V6LF HALO Electronics 1: $11.43 113In Stock	Mfr. Part No. TGMR-350V6LF Mouser Part No 493-TGMR-350V6LF	HALO Electronics	Pulse Transformers ISO MOD SMD GullWing 3kVrms 0.9Ohm 6pin Learn More about HALO Electronics halo dc dc transformers	Datasheet	113In Stock	$11.43 $7.39 $6.02 $4.87 View $4.09 $3.52 $3.38 $3.19 Quote	Min.: 1 Mult.: 1				SMD/SMT
Autotransformers TRANSFORMER STEP DOWN AUTO OF 115-0F Bel Signal Transformer 1: $57.46 3In Stock	Mfr. Part No. 115-0F Mouser Part No 530-115-0F	Bel Signal Transformer	Autotransformers TRANSFORMER STEP DOWN AUTO OF Learn More about Bel Signal Transformer signal transformer auto transformers	Datasheet	3In Stock	$57.46 $46.35 $45.22 $43.88 View $42.88 $42.79 Quote	Min.: 1 Mult.: 1	150 VA	115 VAC to 230 VAC, 115 V to 230 V		Chassis
Power Transformers - Industrial TRANSFORMER STEP DOWN AUTO OF 16-1 Bel Signal Transformer 1: $71.28 14In Stock	Mfr. Part No. 16-1 Mouser Part No 530-16-1	Bel Signal Transformer	Power Transformers - Industrial TRANSFORMER STEP DOWN AUTO OF	Datasheet	14In Stock	$71.28 $64.06 $62.13 $61.52 View $60.95 Quote	Min.: 1 Mult.: 1	16 VA	115 VAC	16 V CT/8 V CT	Chassis
Power Transformers - Industrial LOW PROF INTL TRANS 9-LPI 16-6 Bel Signal Transformer 1: $82.50 4In Stock	Mfr. Part No. 16-6 Mouser Part No 530-16-6	Bel Signal Transformer	Power Transformers - Industrial LOW PROF INTL TRANS 9-LPI	Datasheet	4In Stock	$82.50 $68.80 $68.22 View Quote	Min.: 1 Mult.: 1	96 VA	115 VAC	16 V CT/8 V CT	Chassis
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-56 Bel Signal Transformer 1: $13.64 34In Stock	Mfr. Part No. DST-2-56 Mouser Part No 530-DST-2-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	34In Stock	$13.64 $11.61 $11.13 $10.76 $9.14	Min.: 1 Mult.: 1	1.1 VA	115 VAC, 230 VAC	56 V CT/28 V	Through Hole
Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP 78250JVC-R Murata Power Solutions 1: $5.08 241In Stock 500Expected 2026/11/06	Mfr. Part No. 78250JVC-R Mouser Part No 580-78250JVC-R	Murata Power Solutions	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP Learn More about Murata Power Solutions Murata78250J	Datasheet	241In Stock 500Expected 2026/11/06	Cut Tape $5.08 $4.07 $3.91 $3.79 View Reel $3.30 $3.68 $3.52 $3.30 MouseReel Available	Min.: 1 Mult.: 1 : 500				SMD/SMT
Power Transformers - Industrial 0.150KVA 208/240/415-120/24 E150TC SolaHD 1: $314.64 1In Stock	Mfr. Part No. E150TC Mouser Part No 663-E150TC	SolaHD	Power Transformers - Industrial 0.150KVA 208/240/415-120/24	Datasheet	1In Stock	$314.64 $313.75	Min.: 1 Mult.: 1	150 VA	208 V, 240 V, 415 V	24 V, 120 V	Bracket Mount
Power Transformers - Board Mount WE-UNIT Offline 245uH .21A 1.2Ohm 7491181024 Wurth Elektronik 1: $7.35 110In Stock	Mfr. Part No. 7491181024 Mouser Part No 710-7491181024	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 245uH .21A 1.2Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	110In Stock	$7.35 $6.47 $6.12 $5.78 View $5.44 $5.29	Min.: 1 Mult.: 1	3 W	85 VAC to 265 VAC	24 V	Through Hole
Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W 750310563 Wurth Elektronik 1: $7.33 800Expected 2027/02/04	Mfr. Part No. 750310563 Mouser Part No 710-750310563	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	800Expected 2027/02/04	Cut Tape $7.33 $6.78 $6.50 $6.30 Reel $5.91 View $5.97 $5.62 $5.40 $5.37	Min.: 1 Mult.: 1 : 200	9.6 W	18 V to 30 V	12 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 12 uH 30 W 750311600 Wurth Elektronik 1: $11.72 114In Stock	Mfr. Part No. 750311600 Mouser Part No 710-750311600	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 12 uH 30 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	114In Stock	Cut Tape $11.72 $10.98 Reel $10.98 $8.59 MouseReel Available	Min.: 1 Mult.: 1 : 125	30 W	30 V to 75 V	15 V	SMD/SMT
Power Transformers - Board Mount WE-AGDT 1ED3491MU12M 400 mH 750317493 Wurth Elektronik 1: $6.84 612In Stock	Mfr. Part No. 750317493 Mouser Part No 710-750317493	Wurth Elektronik	Power Transformers - Board Mount WE-AGDT 1ED3491MU12M 400 mH Learn More about Wurth Elektronik wurth auxiliary gate drive transformers	Datasheet	612In Stock	Cut Tape $6.84 $6.36 $5.87 $5.38 Reel $4.90 $4.04 MouseReel Available	Min.: 1 Mult.: 1 : 250		12 V to 20 V	15 V	SMD/SMT
Current Transformers - Industrial Current Transformers CT-100/5 ATC Diversified Electronics 1: $32.69 3In Stock	Mfr. Part No. CT-100/5 Mouser Part No 830-CT-100/5	ATC Diversified Electronics	Current Transformers - Industrial Current Transformers Learn More about ATC Diversified Electronics atc diversified ct current transformers	Datasheet	3In Stock	$32.69 $27.91 $27.23 $26.71 View $26.21 $25.60 $25.59 Quote	Min.: 1 Mult.: 1	3 VA			Free Hanging
Current Transformers - Industrial Current Transformer 1000/5 amp CT1000/5 ATC Diversified Electronics 1: $49.89 1In Stock	Mfr. Part No. CT1000/5 Mouser Part No 830-T1000/5	ATC Diversified Electronics	Current Transformers - Industrial Current Transformer 1000/5 amp Learn More about ATC Diversified Electronics atc diversified ct current transformers	Datasheet	1In Stock	$49.89 $43.61 $42.04 $40.27 View $39.09 $37.94 Quote	Min.: 1 Mult.: 1	15 VA			Free Hanging
Power Transformers - Board Mount THROUGH HOLE 2.4VA 3FS-356 Tamura 1: $6.06 44In Stock	Mfr. Part No. 3FS-356 Mouser Part No 838-3FS-356	Tamura	Power Transformers - Board Mount THROUGH HOLE 2.4VA	Datasheet	44In Stock	$6.06 $5.15 $4.95 $4.59 View $4.22 $3.77 $3.69 $3.62 $3.57	Min.: 1 Mult.: 1	2.4 VA	115 VAC	28 V/56 V	Through Hole