Power Transformers - Board Mount – Mouser United Kingdom

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AC/DC Converter Transformers

Würth Elektronik AC/DC Converter Transformers are designed for offline power applications and meet relevant safety standards and dielectric requirements. AC/DC transformers feature universal offline input with many options for output voltages and offer THT, SMT, and single or multiple output options. Würth Elektronik AC/DC Converter Transformers are ideal for offline switch-mode power supplies (SMPS) used in industrial controls, metering, smart adapters, and auxiliary power supply applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Primary Voltage Rating	Secondary Voltage Rating	Power Rating	Secondary Current Rating	Mounting Style	Primary Winding	Secondary Winding	Length	Width	Height	Series
Power Transformers - Board Mount MID-OLEE 78-265V 50000kHz 7508110330 Wurth Elektronik 1: £4.26 89In Stock	Mfr. Part No. 7508110330 Mouser Part No 710-7508110330	Wurth Elektronik	Power Transformers - Board Mount MID-OLEE 78-265V 50000kHz Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	89In Stock	£4.26 £3.95 £3.65 £3.35 View £3.04 £2.51	Min.: 1 Mult.: 1	Power	55 VAC to 265 VAC	12 V	5.4 W	450 mA	Through Hole	Dual Primary Winding	Single Secondary Winding	14.2 mm	20.45 mm	14.6 mm	MID-OLEE
Power Transformers - Board Mount MID-OLEE 78-375V 50000kHz 7508110333 Wurth Elektronik 1: £5.47 78In Stock	Mfr. Part No. 7508110333 Mouser Part No 710-7508110333	Wurth Elektronik	Power Transformers - Board Mount MID-OLEE 78-375V 50000kHz Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	78In Stock	£5.47 £5.18 £4.88 £4.58 View £4.35 £4.13	Min.: 1 Mult.: 1	Power	55 VAC to 265 VAC	15 V	4.8 W	320 mA	Through Hole	Dual Primary Winding	Single Secondary Winding	14.2 mm	20.45 mm	14.6 mm	MID-OLEE
Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 40V 7508112511 Wurth Elektronik 1: £6.01 63In Stock	Mfr. Part No. 7508112511 Mouser Part No 710-7508112511	Wurth Elektronik	Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 40V Learn More about Wurth Elektronik midcom wurth MID OLEFD EFD20 transformers	Datasheet	63In Stock	Cut Tape £6.01 £5.19 £4.23 Reel £3.68 MouseReel Available	Min.: 1 Mult.: 1 : 120	Power	85 VAC to 265 VAC	40 V	24 W	600 mA	SMD/SMT	Dual Primary Winding	Single Secondary Winding	21.5 mm	33.8 mm	12 mm	WE-OLEFD
Power Transformers - Board Mount MID-OLLT LT3798 461 uH 45 W 750811290 Wurth Elektronik 1: £13.55 43In Stock	Mfr. Part No. 750811290 Mouser Part No 710-750811290	Wurth Elektronik	Power Transformers - Board Mount MID-OLLT LT3798 461 uH 45 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	43In Stock	£13.55 £11.29 £10.66 £10.04	Min.: 1 Mult.: 1	Flyback Transformers	85 VAC to 265 VAC	125 V	45 W	360 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	31 mm	31 mm	25 mm	MID-OLLT
Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 5V 750811913 Wurth Elektronik 1: £6.01 89In Stock	Mfr. Part No. 750811913 Mouser Part No 710-750811913	Wurth Elektronik	Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 5V Learn More about Wurth Elektronik midcom wurth MID OLEFD EFD20 transformers	Datasheet	89In Stock	Cut Tape £6.01 £5.19 £4.23 Reel £3.68 MouseReel Available	Min.: 1 Mult.: 1 : 120	Power	85 VAC to 265 VAC	5 V, 5 V, 7 V	20.2 W	1.1 A, 1.25 A, 1.25 A	SMD/SMT	Dual Primary Winding	Triple Secondary Winding	21.5 mm	33.8 mm	12 mm	WE-OLEFD
Power Transformers - Board Mount WE-UNIT 4.6W SMD Offline Trnsfmr 750817014 Wurth Elektronik 1: £3.73 164In Stock	Mfr. Part No. 750817014 Mouser Part No 710-750817014	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT 4.6W SMD Offline Trnsfmr Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	164In Stock	Cut Tape £3.73 £3.46 £3.13 £2.85 Reel £2.85 MouseReel Available	Min.: 1 Mult.: 1 : 175	Power	55 VAC to 265 VAC	5 V	3.5 W	700 mA	SMD/SMT	Dual Primary Winding	Dual Secondary Winding	13.8 mm	23.9 mm	11 mm	MID-OLEE
Power Transformers - Board Mount MID-ALIT Lightg Apps 2.60mH 1.6Ohm 750845240 Wurth Elektronik 1: £22.60 1In Stock	Mfr. Part No. 750845240 Mouser Part No 710-750845240	Wurth Elektronik	Power Transformers - Board Mount MID-ALIT Lightg Apps 2.60mH 1.6Ohm Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	1In Stock	£22.60 £20.86 £19.12 £17.38 View £14.34 Quote	Min.: 1 Mult.: 1	Power	195 VAC to 265 VAC	24 V	48 W	2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	31.5 mm	35.2 mm	24 mm	MID-OLIFX
Power Transformers - Board Mount WE-UNIT Offline 220uH .21A .29Ohm 7491181012 Wurth Elektronik 1: £5.52 555On Order	Mfr. Part No. 7491181012 Mouser Part No 710-7491181012	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 220uH .21A .29Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	555On Order On Order Ship Dates Mfr. No: 7491181012 Stock: 0 On Order: 291 Expected 26/10/2026 264 Expected 12/02/2027 Factory Lead Time: 21 Weeks	£5.52 £4.85 £4.60 £4.35 View £4.09 £3.97	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	12 V	3 W	250 mA	Through Hole	Single Primary Winding	Single Secondary Winding	15 mm	11 mm	16.8 mm	WE-UNIT
Power Transformers - Board Mount MID-OLPI UCC28700 1.67 mH 6 W 750811016 Wurth Elektronik 1: £5.42 2,252On Order	Mfr. Part No. 750811016 Mouser Part No 710-750811016	Wurth Elektronik	Power Transformers - Board Mount MID-OLPI UCC28700 1.67 mH 6 W Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	2,252On Order On Order Ship Dates Mfr. No: 750811016 Stock: 0 On Order: 902 Expected 10/12/2026 1,350 Expected 15/02/2027 Factory Lead Time: 17 Weeks	£5.42 £4.64 £3.87 £3.31	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	5 V	6 W	1.2 A	Through Hole	Single Primary Winding	Single Secondary Winding	16.9 mm	18.8 mm	13 mm	MID-OLPI
Power Transformers - Board Mount WE-UOST Univ Offline 1250uH 0.8A 3000mOhm 760871142 Wurth Elektronik 1: £7.32 777On Order	Mfr. Part No. 760871142 Mouser Part No 710-760871142	Wurth Elektronik	Power Transformers - Board Mount WE-UOST Univ Offline 1250uH 0.8A 3000mOhm Learn More about Wurth Elektronik wurth uost transformers	Datasheet	777On Order On Order Ship Dates Mfr. No: 760871142 Stock: 0 On Order: 27 Pending 750 Expected 12/03/2027 Factory Lead Time: 15 Weeks	Cut Tape £7.32 £7.16 £7.05 £6.60 Reel £5.93 View £6.49 £5.43 £4.93 MouseReel Available	Min.: 1 Mult.: 1 : 150	Power	85 VAC to 265 VAC	24 V	6.7 W	280 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	25.81 mm	16.6 mm	13.5 mm	WE-UOST
Power Transformers - Board Mount MID-OLRM 85-265V 44-77kHz 7508112349 Wurth Elektronik 1: £7.33 180Expected 02/11/2026	Mfr. Part No. 7508112349 Mouser Part No 710-7508112349	Wurth Elektronik	Power Transformers - Board Mount MID-OLRM 85-265V 44-77kHz Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	180Expected 02/11/2026	£7.33 £7.25 £6.78 £6.11 £5.43	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	12 V	26.4 W	2.2 A	Through Hole	Dual Primary Winding	Single Secondary Winding	24.64 mm	24.64 mm	17.32 mm	MID-OLRM
Power Transformers - Board Mount WE-LLCR FAN7688Size ETD44 4 75uH 250W 12V 760895731 Wurth Elektronik 1: £16.22 15On Order	Mfr. Part No. 760895731 Mouser Part No 710-760895731	Wurth Elektronik	Power Transformers - Board Mount WE-LLCR FAN7688Size ETD44 4 75uH 250W 12V Learn More about Wurth Elektronik wurth llcr transformers	Datasheet	15On Order	£16.22 £15.55 £14.56 £13.11 £11.17	Min.: 1 Mult.: 1	Power	255 VAC to 283 VAC	12 V	250 W	20.8 A	Through Hole	Single Primary Winding	Dual Secondary Winding	48 mm	46 mm	27.5 mm	WE-LLCR
Power Transformers - Board Mount WE-UNIT Offline 172uH .21A 1.2Ohm 7491181124 Wurth Elektronik 1: £5.52 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. 7491181124 Mouser Part No 710-7491181124	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 172uH .21A 1.2Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 21 Weeks	£5.52 £4.85 £4.60 £4.35 View £4.09 £3.97	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	24 V	3 W	125 mA	Through Hole	Single Primary Winding	Single Secondary Winding	21.5 mm	15 mm	12 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 145uH .85A 26Ohm 7491182012 Wurth Elektronik 154: £4.50 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. 7491182012 Mouser Part No 710-7491182012	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 145uH .85A 26Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 21 Weeks	£4.50 £4.49 £4.46 Quote Quote	Min.: 154 Mult.: 154	Power	85 VAC to 265 VAC	12 V	8.4 W	250 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	18 mm	16.5 mm	18 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 145uH 4.5A 210Ohm 7491182024 Wurth Elektronik 154: £4.50 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. 7491182024 Mouser Part No 710-7491182024	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 145uH 4.5A 210Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 21 Weeks	£4.50 £4.49 £4.46 Quote Quote	Min.: 154 Mult.: 154	Power	85 VAC to 265 VAC	24 V	9.6 W	125 mA	Through Hole	Single Primary Winding	Single Secondary Winding	18 mm	16.5 mm	18 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 100uH .8A 94Ohm 7491182124 Wurth Elektronik 1: £6.08 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. 7491182124 Mouser Part No 710-7491182124	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 100uH .8A 94Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 21 Weeks	£6.08 £5.34 £4.78 £4.49 View £4.47 £4.46 Quote	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	24 V	9.6 W	125 mA	Through Hole	Single Primary Winding	Single Secondary Winding	24.5 mm	20.2 mm	16.5 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 120uH .8A 155Ohm 749118215 Wurth Elektronik 1: £6.08 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. 749118215 Mouser Part No 710-749118215	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 120uH .8A 155Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 21 Weeks	£6.08 £5.34 £4.78 £4.49 View £4.47 £4.46 Quote	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	5 V	10 W	600 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	24.5 mm	20.2 mm	16.5 mm	WE-UNIT
Power Transformers - Board Mount MID-UNIT STM Offline 1.2mH 2Ohm 750310660 Wurth Elektronik 1,000: £2.67 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750310660 Mouser Part No 710-750310660	Wurth Elektronik	Power Transformers - Board Mount MID-UNIT STM Offline 1.2mH 2Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 19 Weeks	£2.67	Min.: 1,000 Mult.: 50	Power	85 VAC to 265 VAC	12 V	6 W	500 mA	Through Hole	Single Primary Winding	Single Secondary Winding	20.83 mm	22.35 mm	17.53 mm	MID-OLSTM
Power Transformers - Board Mount MID-OLPI 120-375V 12V 12W 750310849 Wurth Elektronik 1,050: £4.37 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750310849 Mouser Part No 710-750310849	Wurth Elektronik	Power Transformers - Board Mount MID-OLPI 120-375V 12V 12W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	£4.37	Min.: 1,050 Mult.: 70	Power	85 VAC to 265 VAC	12 V	12 W	1 A	Through Hole	Triple Primary Winding	Single Secondary Winding	21 mm	25 mm	16 mm	MID-OLPI
Power Transformers - Board Mount MID-OLON NCL30000 870 uH 6.3 W 750311215 Wurth Elektronik 1,000: £11.61 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750311215 Mouser Part No 710-750311215	Wurth Elektronik	Power Transformers - Board Mount MID-OLON NCL30000 870 uH 6.3 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	£11.61	Min.: 1,000 Mult.: 50	Power	90 VAC to 135 VAC	18 V	6.3 W	350 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	21.59 mm	21.08 mm	11.68 mm	MID-OLON
Power Transformers - Board Mount MID-OLON NCL30001 625 uH 75 W 750311267 Wurth Elektronik 1,000: £26.71 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. 750311267 Mouser Part No 710-750311267	Wurth Elektronik	Power Transformers - Board Mount MID-OLON NCL30001 625 uH 75 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 26 Weeks	£26.71	Min.: 1,000 Mult.: 20	Flyback Transformers	85 VAC to 265 VAC	50 V	75 W	1.5 A	Through Hole	Dual Primary Winding	Single Secondary Winding	35.56 mm	37.34 mm	34.29 mm	MID-OLON
Power Transformers - Board Mount MID-OLON NCL30001 600 uH 89.6 W 750311269 Wurth Elektronik 1,000: £10.00 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750311269 Mouser Part No 710-750311269	Wurth Elektronik	Power Transformers - Board Mount MID-OLON NCL30001 600 uH 89.6 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	£10.00	Min.: 1,000 Mult.: 25	Flyback Transformers	85 VAC to 265 VAC	28 V	89.6 W	3.2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	35.56 mm	37.34 mm	34.29 mm	MID-OLON
Power Transformers - Board Mount MID-OLON NCL30000 1.72 mH 35 W 750311475 Wurth Elektronik 1,029: £11.35 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. 750311475 Mouser Part No 710-750311475	Wurth Elektronik	Power Transformers - Board Mount MID-OLON NCL30000 1.72 mH 35 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 17 Weeks	£11.35	Min.: 1,029 Mult.: 49	Power	90 VAC to 305 VAC	25 V, 50 V	35 W	350 mA, 700 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	26.92 mm	26.67 mm	14.61 mm	MID-OLON
Power Transformers - Board Mount MID-OLNXP 85-265V 100kHz 750311525 Wurth Elektronik 1,000: £5.26 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750311525 Mouser Part No 710-750311525	Wurth Elektronik	Power Transformers - Board Mount MID-OLNXP 85-265V 100kHz Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	£5.26	Min.: 1,000 Mult.: 100	Power	85 VAC to 265 VAC	40 V	20 W	500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	14.73 mm	14.73 mm	15.24 mm	MID-OLNXP
Power Transformers - Board Mount MID-OLTI LM3445 803.5 uH 10 W 750311553 Wurth Elektronik 1,000: £5.26 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 750311553 Mouser Part No 710-750311553	Wurth Elektronik	Power Transformers - Board Mount MID-OLTI LM3445 803.5 uH 10 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	£5.26	Min.: 1,000 Mult.: 50	Flyback Transformers	90 VAC to 140 VAC	25 V	10 W	400 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	20.32 mm	24.38 mm	16 mm	MID-OLTI