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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 (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Power Rating	Primary Voltage Rating	Secondary Voltage Rating	Mounting Style
Audio Transformers / Signal Transformers MODEM TRANSFORMERS 75Ohm Prim. DCR 95Ohm sec TTC-142-2 Tamura 1: S/ 21.64 539In Stock	Mfr. Part # TTC-142-2 Mouser Part # 838-TTC-142-2	Tamura	Audio Transformers / Signal Transformers MODEM TRANSFORMERS 75Ohm Prim. DCR 95Ohm sec	Datasheet	539In Stock	S/ 21.64 S/ 20.09 S/ 19.58 S/ 18.76 View S/ 18.26 S/ 17.28 S/ 17.20	Min.: 1 Mult.: 1	No
Audio Transformers / Signal Transformers 350uH 10000VDC 1CT:1CT 100BaseTX HXE1001HLT Pulse Electronics 1: S/ 24.80 500In Stock 500Expected 11/26/2026 New Product	Mfr. Part # HXE1001HLT Mouser Part # 673-HXE1001HLT New Product	Pulse Electronics	Audio Transformers / Signal Transformers 350uH 10000VDC 1CT:1CT 100BaseTX Learn More about Pulse Electronics pulse high voltage isolation modules	Datasheet	500In Stock 500Expected 11/26/2026	Cut Tape S/ 24.80 S/ 21.18 S/ 20.32 S/ 19.70 Reel S/ 17.98 View S/ 18.76 S/ 17.28 S/ 16.08 MouseReel Available	Min.: 1 Mult.: 1 : 250
Power Transformers - Board Mount 140uH DCR=700mOhms 5000VRMS 3W PushPull PMT6397.011NLT Pulse Electronics 1: S/ 23.98 450In Stock New Product	Mfr. Part # PMT6397.011NLT Mouser Part # 673-PMT6397.011NLT New Product	Pulse Electronics	Power Transformers - Board Mount 140uH DCR=700mOhms 5000VRMS 3W PushPull Learn More about Pulse Electronics ats maxiflow power brick heat sinks	Datasheet	450In Stock	Cut Tape S/ 23.98 S/ 19.19 S/ 18.45 S/ 17.87 Reel S/ 16.58 View S/ 17.32 S/ 16.04 S/ 15.57 S/ 14.91 MouseReel Available	Min.: 1 Mult.: 1 : 150					PCB Mount
Pulse Transformers 5mH 10% 50kHz 1:1:10.1 SMD AEC-Q200 B78416A2433A003 TDK 1: S/ 13.39 2,065In Stock	Mfr. Part # B78416A2433A003 Mouser Part # 871-B78416A2433A003	TDK	Pulse Transformers 5mH 10% 50kHz 1:1:10.1 SMD AEC-Q200	Datasheet	2,065In Stock	Cut Tape S/ 13.39 S/ 10.82 S/ 9.50 S/ 9.19 View Reel S/ 8.33 S/ 8.91 S/ 8.84 S/ 8.72 S/ 8.33 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Power Transformers - Board Mount Pulse Electronics H5143FNL H5143FNL Pulse Electronics 1: S/ 28.26 745In Stock 2,970On Order	Mfr. Part # H5143FNL Mouser Part # 673-H5143FNL	Pulse Electronics	Power Transformers - Board Mount	Datasheet	745In Stock 2,970On Order On Order Ship Dates Mfr. #: H5143FNL Stock: 745 Can Ship Immediately On Order: 990 Expected 10/29/2026 690 Expected 2/10/2027 1,290 Expected 2/24/2027 Factory Lead-Time: 21 Weeks	S/ 28.26 S/ 22.23 S/ 21.25 S/ 20.63 View S/ 20.01 S/ 19.19 S/ 18.57 S/ 17.98 S/ 17.28	Min.: 1 Mult.: 1					PCB Mount
Audio Transformers / Signal Transformers 1:1 Core & Wire Transformer, 0.15 - 400 Mhz, 50ohm T1-1-KK81+ Mini-Circuits 1: S/ 20.59 86In Stock	Mfr. Part # T1-1-KK81+ Mouser Part # 139-T1-1-KK81	Mini-Circuits	Audio Transformers / Signal Transformers 1:1 Core & Wire Transformer, 0.15 - 400 Mhz, 50ohm	Datasheet	86In Stock	Cut Tape S/ 20.59 S/ 20.32 Reel S/ 20.32 MouseReel Available	Min.: 1 Mult.: 1 : 100
Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.015 - 300 MHz, 50? T1-6T+ Mini-Circuits 1: S/ 44.49 20In Stock 30Expected 3/1/2027	Mfr. Part # T1-6T+ Mouser Part # 139-T1-6T+	Mini-Circuits	Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.015 - 300 MHz, 50?	Datasheet	20In Stock 30Expected 3/1/2027	S/ 44.49	Min.: 1 Mult.: 1		250 mW
Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT/ HAT RoHS TC16-1TX+ Mini-Circuits 1: S/ 16.47 65In Stock	Mfr. Part # TC16-1TX+ Mouser Part # 139-TC16-1TX	Mini-Circuits	Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT/ HAT RoHS Learn More about Mini-Circuits mini circuits tc1 transformers	Datasheet	65In Stock	Cut Tape S/ 16.47 S/ 11.99 S/ 10.32 Reel S/ 10.32 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh TG04-1205NSRL HALO Electronics 1: S/ 18.49 90In Stock	Mfr. Part # TG04-1205NSRL Mouser Part # 493-TG04-1205NSRL	HALO Electronics	Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh Learn More about HALO Electronics halo telecom transformers	Datasheet	90In Stock	S/ 18.49 S/ 11.91 S/ 9.73 S/ 7.86 View S/ 6.62 S/ 5.68 S/ 5.45 S/ 5.29	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 10/100BASE-TX SMD POE DUAL PORT 350mA 1CT:1CT -40 / 85C 350uH 1500Vrms TG110-RPE12NJLF HALO Electronics 1: S/ 83.49 9In Stock New At Mouser	Mfr. Part # TG110-RPE12NJLF Mouser Part # 493-TG110-RPE12NJLF New At Mouser	HALO Electronics	Audio Transformers / Signal Transformers 10/100BASE-TX SMD POE DUAL PORT 350mA 1CT:1CT -40 / 85C 350uH 1500Vrms		9In Stock	S/ 83.49 S/ 59.63 S/ 50.10 S/ 41.73 View S/ 31.30 S/ 25.03 S/ 22.77 S/ 21.95 Quote	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P Lw Prfl 1 Port TG111-S001J24RL HALO Electronics 1: S/ 60.14 72In Stock	Mfr. Part # TG111-S001J24RL Mouser Part # 493-TG111-S001J24RL	HALO Electronics	Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P Lw Prfl 1 Port Learn More about HALO Electronics halo gigabit ethernet transformers	Datasheet	72In Stock	S/ 60.14 S/ 38.85 S/ 31.68 S/ 25.61 View S/ 21.49 S/ 18.53 S/ 17.71 S/ 17.20	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 16P Dual Ch TG74-1505N1RLTR HALO Electronics 1: S/ 23.16 214In Stock 1,000Expected 1/1/2027	Mfr. Part # TG74-1505N1RLTR Mouser Part # 493-TG74-1505N1RLTR	HALO Electronics	Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 16P Dual Ch Learn More about HALO Electronics halo telecom transformers	Datasheet	214In Stock 1,000Expected 1/1/2027	Cut Tape S/ 23.16 S/ 15.03 S/ 12.26 S/ 9.89 Reel S/ 6.93 View S/ 8.33 S/ 7.24 S/ 6.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Audio Transformers / Signal Transformers T1/E1 Duet ISO MOD SMD 24P Dual Port TG74-1505NZRL HALO Electronics 1: S/ 45.54 320In Stock	Mfr. Part # TG74-1505NZRL Mouser Part # 493-TG74-1505NZRL	HALO Electronics	Audio Transformers / Signal Transformers T1/E1 Duet ISO MOD SMD 24P Dual Port Learn More about HALO Electronics halo telecom transformers	Datasheet	320In Stock	S/ 45.54 S/ 29.35 S/ 23.94 S/ 19.38 View S/ 16.27 S/ 15.18 S/ 14.25 Quote	Min.: 1 Mult.: 1
Power Transformers - Board Mount POE Flyback Xfmr 3W 3.3Vout TGP3-S005EP7LF HALO Electronics 1: S/ 20.24 300In Stock	Mfr. Part # TGP3-S005EP7LF Mouser Part # 493-TGP3-S005EP7LF	HALO Electronics	Power Transformers - Board Mount POE Flyback Xfmr 3W 3.3Vout Learn More about HALO Electronics halo dc dc transformers	Datasheet	300In Stock	S/ 20.24 S/ 13.12 S/ 10.70 S/ 8.64 View S/ 7.28 S/ 6.27 S/ 5.99 S/ 5.80	Min.: 1 Mult.: 1				3.3 V	SMD/SMT
Power Transformers - Industrial TRAN TWO-FOR-ONE DP 4 W/LEADS DP-241-4-36 Bel Signal Transformer 1: S/ 76.92 83In Stock	Mfr. Part # DP-241-4-36 Mouser Part # 530-DP-241-4-36	Bel Signal Transformer	Power Transformers - Industrial TRAN TWO-FOR-ONE DP 4 W/LEADS Learn More about Bel Signal Transformer signal transformer two 4 one power transformers	Datasheet	83In Stock	S/ 76.92 S/ 76.88 S/ 55.58 S/ 55.27 View S/ 53.95 S/ 53.64 Quote	Min.: 1 Mult.: 1		6 VA	115 VAC, 230 VAC	36 V CT	Chassis
Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 5 DP-241-5-36L Bel Signal Transformer 1: S/ 101.09 10In Stock	Mfr. Part # DP-241-5-36L Mouser Part # 530-DP-241-5-36L	Bel Signal Transformer	Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 5 Learn More about Bel Signal Transformer signal transformer two 4 one power transformers	Datasheet	10In Stock	S/ 101.09 S/ 66.41 S/ 65.71 S/ 65.32 View Quote	Min.: 1 Mult.: 1		12 VA	115 VAC, 230 VAC	36 V CT	Chassis
Power Transformers - Board Mount TRANSFORMER POWER DPC-2 DPC-16-640 Bel Signal Transformer 1: S/ 86.84 39In Stock	Mfr. Part # DPC-16-640 Mouser Part # 530-DPC-16-640	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER DPC-2 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	39In Stock	S/ 86.84 S/ 78.24 S/ 75.51 S/ 64.15 View S/ 63.95 S/ 62.55 S/ 61.81 Quote	Min.: 1 Mult.: 1		10 VA	115 VAC, 230 VAC	16 V CT/8 V	Through Hole
Power Transformers - Board Mount TRANSFORMER POWER PC-5 PC-16-1500 Bel Signal Transformer 1: S/ 106.30 21In Stock	Mfr. Part # PC-16-1500 Mouser Part # 530-PC-16-1500	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER PC-5 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	21In Stock	S/ 106.30 S/ 95.79 S/ 88.32 S/ 80.26 S/ 80.22	Min.: 1 Mult.: 1		24 VA	115 VAC	16 V CT/8 V	Through Hole
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-20 Bel Signal Transformer 1: S/ 46.24 58In Stock	Mfr. Part # ST-3-20 Mouser Part # 530-ST-3-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	58In Stock	S/ 46.24 S/ 39.31 S/ 37.72 S/ 36.55 View S/ 30.83 S/ 30.75 S/ 30.48	Min.: 1 Mult.: 1		2.4 VA	115 VAC	20 V CT/10 V	Through Hole
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 ST-5-12 Bel Signal Transformer 1: S/ 72.36 37In Stock	Mfr. Part # ST-5-12 Mouser Part # 530-ST-5-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	37In Stock	S/ 72.36 S/ 64.07 S/ 54.46 S/ 51.93 View S/ 51.26 S/ 50.76 Quote	Min.: 1 Mult.: 1		12 VA	115 VAC	12.6 V CT/6.3 V	Through Hole
Pulse Transformers FG, TRANSFORMER, GATE DRIVE 5MM, 250 KH MTBAUGDT250251-LF Vishay / Dale 1: S/ 37.56 92In Stock	Mfr. Part # MTBAUGDT250251-LF Mouser Part # 70-MTBAUGDT250251-LF	Vishay / Dale	Pulse Transformers FG, TRANSFORMER, GATE DRIVE 5MM, 250 KH Learn More about Vishay / Dale vishay dale ugdt transformers	Datasheet	92In Stock	Cut Tape S/ 37.56 S/ 30.48 S/ 30.32 Reel S/ 30.28	Min.: 1 Mult.: 1 : 500					SMD/SMT
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 6.6uH 1.6A 749196248 Wurth Elektronik 1: S/ 38.03 246In Stock	Mfr. Part # 749196248 Mouser Part # 710-749196248	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 6.6uH 1.6A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	246In Stock	Cut Tape S/ 38.03 S/ 34.25 S/ 30.44 S/ 27.91 Reel S/ 27.87 MouseReel Available	Min.: 1 Mult.: 1 : 400					SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 15 uH 45 W 750311593 Wurth Elektronik 1: S/ 55.90 133In Stock	Mfr. Part # 750311593 Mouser Part # 710-750311593	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 15 uH 45 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	133In Stock	Cut Tape S/ 55.90 S/ 52.35 Reel S/ 52.35 S/ 40.99 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 100		45 W	30 V to 75 V	5 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 15 uH 30 W 750311605 Wurth Elektronik 1: S/ 45.62 125In Stock	Mfr. Part # 750311605 Mouser Part # 710-750311605	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 15 uH 30 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	125In Stock	Cut Tape S/ 45.62 S/ 42.74 Reel S/ 37.17 S/ 33.44 MouseReel Available	Min.: 1 Mult.: 1 : 125		30 W	30 V to 75 V	5 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 3.8 uH 9 W 750311856 Wurth Elektronik 1: S/ 19.62 67In Stock 200Expected 12/3/2026	Mfr. Part # 750311856 Mouser Part # 710-750311856	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 3.8 uH 9 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	67In Stock 200Expected 12/3/2026	Cut Tape S/ 19.62 S/ 18.22 S/ 16.82 S/ 15.41 Reel S/ 14.01 S/ 11.56 MouseReel Available	Min.: 1 Mult.: 1 : 200		9 W	16 V to 24 V	15 V, 15 V, 15 V, 15 V	SMD/SMT