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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
Power Transformers - Board Mount 1CT:2CT Iso4000V Push Pull AEC-Q200 PM2155.012NLT Pulse Electronics 1: $3.55 1,950In Stock	Mfr. Part # PM2155.012NLT Mouser Part # 673-PM2155.012NLT	Pulse Electronics	Power Transformers - Board Mount 1CT:2CT Iso4000V Push Pull AEC-Q200 Learn More about Pulse Electronics pulse pm21x aec q200 transformers	Datasheet	1,950In Stock	Cut Tape $3.55 $3.22 $2.84 $2.75 Reel $2.54 View $2.67 $2.15 $2.11	Min.: 1 Mult.: 1 : 300		SMD/SMT
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 303In Stock	Mfr. Part # B78334B1033A003 Mouser Part # 871-B78334B1033A3	TDK	Power Transformers - Board Mount Transformers for DC-DC Converters, DC/DC Converter, ER11, 100 H, TR=1:1:1:1	Datasheet	303In Stock	Cut Tape $7.49 $6.45 $6.19 $6.00 Reel $5.46 View $5.81 $5.55 $5.26 $4.72	Min.: 1 Mult.: 1 : 600
Current Transformers - Board Mount CS1xxx Curr Sensor 10A 20-50kHz CS1050L Coilcraft 1: $5.20 2,011In Stock	Mfr. Part # CS1050L Mouser Part # 994-CS1050L	Coilcraft	Current Transformers - Board Mount CS1xxx Curr Sensor 10A 20-50kHz Learn More about Coilcraft power magnetics	Datasheet	2,011In Stock	$5.20 $4.25 $3.50 $3.39 View $3.28 $3.26 $3.24 $3.13 $3.00	Min.: 1 Mult.: 1
Current Transformers - Industrial CT 100:1 WITH FLUX COND 31MM ELCT5-31 Littelfuse 1: $408.83 4In Stock	Mfr. Part # ELCT5-31 Mouser Part # 576-ELCT5-31	Littelfuse	Current Transformers - Industrial CT 100:1 WITH FLUX COND 31MM Learn More about Littelfuse industrial portfolio	Datasheet	4In Stock	$408.83	Min.: 1 Mult.: 1		Panel
Current Transformers - Industrial 1000:5 4.25MM ID XFMR CURRENT SE-CS10-4 Littelfuse 1: $497.63 5In Stock	Mfr. Part # SE-CS10-4 Mouser Part # 576-SE-CS10-4	Littelfuse	Current Transformers - Industrial 1000:5 4.25MM ID XFMR CURRENT Learn More about Littelfuse industrial portfolio	Datasheet	5In Stock	$497.63	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers DIGITAL AUDIO TRANSFORMER DA102JC-R Murata Power Solutions 1: $2.14 4,475In Stock 5,000Expected 12/14/2026	Mfr. Part # DA102JC-R Mouser Part # 580-DA102JC-R	Murata Power Solutions	Audio Transformers / Signal Transformers DIGITAL AUDIO TRANSFORMER Learn More about Murata Power Solutions MurataDA100J	Datasheet	4,475In Stock 5,000Expected 12/14/2026	Cut Tape $2.14 $1.94 $1.81 $1.75 Reel $1.50 View $1.68 $1.40 MouseReel Available	Min.: 1 Mult.: 1 : 500
Power Transformers - Board Mount BMS transformer/CMC,12PIN,DUAL, 4.3KVDC SM91509AL-E Bourns 1: $4.90 1,928In 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	1,928In Stock	Cut Tape $4.90 $4.39 $4.14 $4.01 View Reel $3.35 $3.89 $3.73 $3.61 $3.36 $3.35 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		PCB Mount
Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 5K FUNCTUNIONAL SMD H5187NL Pulse Electronics 1: $8.88 280In Stock	Mfr. Part # H5187NL Mouser Part # 673-H5187NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 5K FUNCTUNIONAL SMD Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	280In Stock	$8.88 $8.01 $7.67 $7.43 View $6.59 $6.34 $6.29 $6.21 Quote	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port HX5004ENL Pulse Electronics 1: $7.33 1,366In Stock	Mfr. Part # HX5004ENL Mouser Part # 673-HX5004ENL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,366In Stock	$7.33 $6.28 $6.02 $5.83 View $5.41 $4.76 $4.65 $4.46	Min.: 1 Mult.: 1
Current Transformers - Board Mount SMD Current Sense AEC-Q200 1:40 Xfmr PA1005.040QNLT Pulse Electronics 1: $1.95 2,331In Stock	Mfr. Part # PA1005.040QNLT Mouser Part # 673-PA1005.040QNLT	Pulse Electronics	Current Transformers - Board Mount SMD Current Sense AEC-Q200 1:40 Xfmr Learn More about Pulse Electronics pulse aec q200 current sense transformers	Datasheet	2,331In Stock	Cut Tape $1.95 $1.77 $1.63 $1.58 Reel $1.39 View $1.54 $1.51 $1.45 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 900
Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port PE-65968NL Pulse Electronics 1: $5.48 549In Stock	Mfr. Part # PE-65968NL Mouser Part # 673-PE-65968NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port	Datasheet	549In Stock	$5.48 $4.99 $4.82 $4.68 View $4.55 $4.27	Min.: 1 Mult.: 1
Pulse Transformers 3.2mH 4kV Iso 4:5 109Vus PH9385.045NLT Pulse Electronics 1: $3.38 1,126In Stock	Mfr. Part # PH9385.045NLT Mouser Part # 673-PH9385045NLT	Pulse Electronics	Pulse Transformers 3.2mH 4kV Iso 4:5 109Vus	Datasheet	1,126In Stock	Cut Tape $3.38 $3.06 $2.86 $2.78 Reel $2.27 View $2.69 $2.20 $2.06 $2.03 MouseReel Available	Min.: 1 Mult.: 1 : 300		SMD/SMT
Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 100uH 1-Port T3001NL Pulse Electronics 1: $7.58 461In Stock	Mfr. Part # T3001NL Mouser Part # 673-T3001NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 100uH 1-Port	Datasheet	461In Stock	$7.58 $6.85 $6.57 $6.27 View $6.26 $5.80 $4.78 $4.75	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers - ATB3225-50011CT-T000 TDK 1: $2.23 1,805In Stock	Mfr. Part # ATB3225-50011CT-T000 Mouser Part # 810-ATB3250011CTT000	TDK	Audio Transformers / Signal Transformers - Learn More about TDK ATB3225trans	Datasheet	1,805In Stock	Cut Tape $2.23 $1.55 $1.17 $1.02 Reel $0.90 View $0.918 $0.75	Min.: 1 Mult.: 1 : 1,000
Audio Transformers / Signal Transformers 12uH 3KV 1:2CT:1 2% AEC-Q200 BX6150NL Pulse Electronics 1: $5.09 793In Stock	Mfr. Part # BX6150NL Mouser Part # 673-BX6150NL	Pulse Electronics	Audio Transformers / Signal Transformers 12uH 3KV 1:2CT:1 2% AEC-Q200 Learn More about Pulse Electronics bm bmu bx transformers	Datasheet	793In Stock	$5.09 $4.03 $3.88 $3.61 View $3.20 $2.81 Quote	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port HD8004FNL Pulse Electronics 1: $7.64 265In Stock	Mfr. Part # HD8004FNL Mouser Part # 673-HD8004FNL	Pulse Electronics	Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port Learn More about Pulse Electronics pulse hdbaset transformers	Datasheet	265In Stock	$7.64 $7.02 $6.70 $6.54 View $6.40 $6.20 $6.12 Quote	Min.: 1 Mult.: 1	60 W
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port HX1148NLT Pulse Electronics 1: $8.71 1,094In Stock	Mfr. Part # HX1148NLT Mouser Part # 673-HX1148NLT	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,094In Stock	Cut Tape $8.71 $7.86 $7.55 $7.31 Reel $6.73 View $7.08 $5.94 $5.71 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,200 : 300
Power Transformers - Board Mount SMD HiFreq WireWound 20.4uH .15Ohms PA1277NLT Pulse Electronics 1: $3.70 681In Stock	Mfr. Part # PA1277NLT Mouser Part # 673-PA1277NLT	Pulse Electronics	Power Transformers - Board Mount SMD HiFreq WireWound 20.4uH .15Ohms	Datasheet	681In Stock	Cut Tape $3.70 $3.35 $3.11 $3.01 Reel $2.67 View $2.76 $2.32 MouseReel Available	Min.: 1 Mult.: 1 : 200
Power Transformers - Board Mount SMD HiFreq WireWound 28.9uH .058Ohms PA1528NLT Pulse Electronics 1: $3.82 923In Stock	Mfr. Part # PA1528NLT Mouser Part # 673-PA1528NLT	Pulse Electronics	Power Transformers - Board Mount SMD HiFreq WireWound 28.9uH .058Ohms	Datasheet	923In Stock	Cut Tape $3.82 $3.46 $3.11 $3.01 Reel $2.77 View $2.92 $2.63 $2.36	Min.: 1 Mult.: 1 : 150
Audio Transformers / Signal Transformers SMD Digital Audio 3000uH .5Ohms 1-Port PE-65848NLT Pulse Electronics 1: $7.68 975In Stock	Mfr. Part # PE-65848NLT Mouser Part # 673-PE-65848NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD Digital Audio 3000uH .5Ohms 1-Port	Datasheet	975In Stock	Cut Tape $7.68 $6.82 $6.54 $6.34 Reel $6.13 View $6.14 $5.07 $4.83 $4.66 MouseReel Available	Min.: 1 Mult.: 1 : 250
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por TX1287NL Pulse Electronics 1: $4.69 560In Stock	Mfr. Part # TX1287NL Mouser Part # 673-TX1287NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por	Datasheet	560In Stock	$4.69 $4.23 $3.89 $3.82 View $3.68 $3.59 $3.56	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms 749020022A Wurth Elektronik 1: $17.10 355In Stock	Mfr. Part # 749020022A Mouser Part # 710-749020022A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	355In Stock	Cut Tape $17.10 $14.13 $12.18 Reel $11.55 MouseReel Available	Min.: 1 Mult.: 1 : 330
Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C,S ALANS10001-3J41DT ABRACON 1: $3.19 1,337In Stock	Mfr. Part # ALANS10001-3J41DT Mouser Part # 815-ALANS100013J41DT	ABRACON	Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C,S Learn More about ABRACON alans10001 lan transformer modules	Datasheet	1,337In Stock	Cut Tape $3.19 $2.45 $2.33 Reel $2.04 $1.75 View $1.68 $1.65 MouseReel Available	Min.: 1 Mult.: 1 : 400
Audio Transformers / Signal Transformers 275uH 10% 1:1 DCR=1.2Ohms AEC-Q200 WA8478-BEC Coilcraft 1: $6.80 1,094In Stock	Mfr. Part # WA8478-BEC Mouser Part # 994-WA8478-BEC	Coilcraft	Audio Transformers / Signal Transformers 275uH 10% 1:1 DCR=1.2Ohms AEC-Q200 Learn More about Coilcraft wa8478 flyback transformers	Datasheet	1,094In Stock	Cut Tape $6.80 $5.80 $5.57 $5.40 Reel $4.74 View $5.01 $4.57 $4.43 MouseReel Available	Min.: 1 Mult.: 1 : 175
Pulse Transformers ISO MOD SMD GullWing For MAX13256 HBridg TGMR-501V6LF HALO Electronics 1: $4.48 561In Stock	Mfr. Part # TGMR-501V6LF Mouser Part # 493-TGMR-501V6LF	HALO Electronics	Pulse Transformers ISO MOD SMD GullWing For MAX13256 HBridg Learn More about HALO Electronics halo dc dc transformers	Datasheet	561In Stock	$4.48 $4.30 $4.15 $4.02 View $3.71 $3.68 $3.62 $3.40 Quote	Min.: 1 Mult.: 1		SMD/SMT