Power Transformers - Board Mount

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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 (EUR) 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-UNIT NXP Offline 2.38mH 1Ohm 750871030 Wurth Elektronik 1: 5,50 € 1.539In Stock	Mfr. Part No. 750871030 Mouser Part No 710-750871030	Wurth Elektronik	Power Transformers - Board Mount MID-UNIT NXP Offline 2.38mH 1Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	1.539In Stock	5,50 € 5,10 € 3,93 €	Min.: 1 Mult.: 1	Power	85 VAC to 272 VAC	12 V	7.2 W	600 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	20 mm	24.38 mm	16 mm	MID-OLSTM
Power Transformers - Board Mount MID-SLIM Offline 250uH 50kHz 34mOhm 760871333 Wurth Elektronik 1: 10,11 € 1.303In Stock	Mfr. Part No. 760871333 Mouser Part No 710-760871333	Wurth Elektronik	Power Transformers - Board Mount MID-SLIM Offline 250uH 50kHz 34mOhm Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	1.303In Stock	10,11 € 8,43 € 8,41 € 7,96 € View 7,49 € 7,02 € Quote	Min.: 1 Mult.: 1	Offline Transformers	85 VAC to 265 VAC	12 V, 12 V, 12 V	67.5 W	1.875 A, 1.875 A, 1.875 A	Through Hole	Dual Primary Winding	Triple Secondary Winding	29.4 mm	47.5 mm	12 mm	WE-SLIM
Power Transformers - Board Mount WE-UNIT Offline 180uH .2A .05Ohm 749118115 Wurth Elektronik 1: 6,32 € 358In Stock	Mfr. Part No. 749118115 Mouser Part No 710-749118115	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 180uH .2A .05Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	358In Stock	6,32 € 5,56 € 5,27 € 4,98 € View 4,68 € 4,55 € 4,54 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	5 V	3 W	600 mA	Through Hole	Single Primary Winding	Single Secondary Winding	21.5 mm	15 mm	12 mm	WE-UNIT
Power Transformers - Board Mount MID-OLTI UCC28722 1.35 mH 6 W 750342104 Wurth Elektronik 1: 6,99 € 1.120In Stock	Mfr. Part No. 750342104 Mouser Part No 710-750342104	Wurth Elektronik	Power Transformers - Board Mount MID-OLTI UCC28722 1.35 mH 6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	1.120In Stock	6,99 € 6,05 € 5,53 € 5,19 € 4,56 €	Min.: 1 Mult.: 1	Flyback Transformers	85 VAC to 265 VAC	12 V	6 W	500 mA	Through Hole	Dual Primary Winding	Single Secondary Winding	16.9 mm	18.8 mm	13.31 mm	MID-OLTI
Power Transformers - Board Mount WE-UOST Univ Offline 1250uH 0.8A 190mOhm 760871534 Wurth Elektronik 1: 8,08 € 1.456In Stock	Mfr. Part No. 760871534 Mouser Part No 710-760871534	Wurth Elektronik	Power Transformers - Board Mount WE-UOST Univ Offline 1250uH 0.8A 190mOhm Learn More about Wurth Elektronik wurth uost transformers	Datasheet	1.456In Stock	Cut Tape 8,08 € 7,76 € 7,60 € 7,26 € Reel 6,67 € View 7,18 € 6,22 € 5,65 € MouseReel Available	Min.: 1 Mult.: 1 : 150	Power	85 VAC to 265 VAC	12 V	6.6 W	550 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	25.81 mm	16.6 mm	13.5 mm	WE-UOST
Power Transformers - Board Mount WE-LLCR Size ETD34 600uH 150W 48V 760895451 Wurth Elektronik 1: 14,34 € 9In Stock	Mfr. Part No. 760895451 Mouser Part No 710-760895451	Wurth Elektronik	Power Transformers - Board Mount WE-LLCR Size ETD34 600uH 150W 48V Learn More about Wurth Elektronik wurth llcr transformers	Datasheet	9In Stock	14,34 € 13,73 € 12,87 € 11,58 € 10,29 €	Min.: 1 Mult.: 1	Power	255 VAC to 283 VAC	48 V	150 W	3.1 A	Through Hole	Single Primary Winding	Dual Secondary Winding	36 mm	36 mm	26 mm	WE-LLCR
Power Transformers - Board Mount WE-LLCR Size ETD39 500uH 200W 24V 760895641 Wurth Elektronik 1: 15,39 € 30In Stock	Mfr. Part No. 760895641 Mouser Part No 710-760895641	Wurth Elektronik	Power Transformers - Board Mount WE-LLCR Size ETD39 500uH 200W 24V Learn More about Wurth Elektronik wurth llcr transformers	Datasheet	30In Stock	15,39 € 14,34 € 13,83 € 12,44 € View 12,32 € 11,06 €	Min.: 1 Mult.: 1	Power	255 VAC to 283 VAC	24 V	200 W	8.3 A	Through Hole	Single Primary Winding	Dual Secondary Winding	44 mm	43 mm	30 mm	WE-LLCR
Power Transformers - Board Mount WE-UNIT Offline 245uH .21A 1.2Ohm 7491181024 Wurth Elektronik 1: 6,45 € 108In 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	108In Stock	6,45 € 5,68 € 5,38 € 5,08 € View 4,68 € 4,55 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	24 V	3 W	125 mA	Through Hole	Single Primary Winding	Single Secondary Winding	15 mm	11 mm	16.8 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 175uH .85A 26Ohm 749118205 Wurth Elektronik 1: 7,10 € 61In Stock	Mfr. Part No. 749118205 Mouser Part No 710-749118205	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 175uH .85A 26Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	61In Stock	7,10 € 6,24 € 5,92 € 5,25 € View 5,14 € 5,12 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	5 V	9 W	600 mA	Through Hole	Single Primary Winding	Single Secondary Winding	18 mm	16.5 mm	18 mm	WE-UNIT
Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 12V 7508116313 Wurth Elektronik 1: 7,16 € 17In Stock	Mfr. Part No. 7508116313 Mouser Part No 710-7508116313	Wurth Elektronik	Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 12V Learn More about Wurth Elektronik midcom wurth MID OLEFD EFD20 transformers	Datasheet	17In Stock	7,16 € 6,67 € 6,37 € 6,05 € View 5,38 € 4,51 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	12 V, 12 V	20.4 W	850 mA, 850 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	21.5 mm	29 mm	12 mm	WE-OLEFD
Power Transformers - Board Mount MID-OLTI UCC28740 230 uH 60 W 750343068 Wurth Elektronik 1: 11,30 € 515In Stock	Mfr. Part No. 750343068 Mouser Part No 710-750343068	Wurth Elektronik	Power Transformers - Board Mount MID-OLTI UCC28740 230 uH 60 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	515In Stock	11,30 € 10,73 € 9,98 € 9,04 €	Min.: 1 Mult.: 1	Flyback Transformers	94 VAC to 445 VAC	24 V	60 W	2.5 A	Through Hole	Dual Primary Winding	Single Secondary Winding	29.2 mm	30.35 mm	29.3 mm	MID-OLTI
Power Transformers - Board Mount MID-OLON Flyback Transformer 750341793 Wurth Elektronik 1: 9,01 € Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. 750341793 Mouser Part No 710-750341793	Wurth Elektronik	Power Transformers - Board Mount MID-OLON Flyback Transformer Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	Non-Stocked Lead-Time 24 Weeks	9,01 € 9,00 € 8,34 € 8,10 € View 7,80 € 7,09 €	Min.: 1.050 Mult.: 70	Flyback Transformers	85 VAC to 600 VAC	5 V, 12 V	9.8 W	400 mA, 1 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	23 mm	22 mm	17.53 mm	MID-OLON
Power Transformers - Board Mount WE-UOST Univ Offline 1500uH 0.8A 4200mOhm 760875112 Wurth Elektronik 1: 8,08 € 91In Stock	Mfr. Part No. 760875112 Mouser Part No 710-760875112	Wurth Elektronik	Power Transformers - Board Mount WE-UOST Univ Offline 1500uH 0.8A 4200mOhm Learn More about Wurth Elektronik wurth uost transformers	Datasheet	91In Stock	Cut Tape 8,08 € 7,75 € 7,59 € 7,25 € Reel 6,57 € View 6,75 € 6,22 € 5,65 € MouseReel Available	Min.: 1 Mult.: 1 : 150	Power	195 VAC to 265 VAC	5 V	7.5 W	1.5 A	SMD/SMT	Single Primary Winding	Dual Secondary Winding	25.81 mm	16.6 mm	13.5 mm	WE-UOST
Power Transformers - Board Mount WE-UOST Univ Offline 1310uH 0.8A 3000mOhm 760871113 Wurth Elektronik 1: 8,08 € 89In Stock	Mfr. Part No. 760871113 Mouser Part No 710-760871113	Wurth Elektronik	Power Transformers - Board Mount WE-UOST Univ Offline 1310uH 0.8A 3000mOhm Learn More about Wurth Elektronik wurth uost transformers	Datasheet	89In Stock	Cut Tape 8,08 € 7,75 € 7,59 € 7,25 € Reel 6,67 € View 7,18 € 6,22 € 5,65 € MouseReel Available	Min.: 1 Mult.: 1 : 150	Power	85 VAC to 265 VAC	5 V	6.25 W	1.25 A	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: 8,40 € 170In Stock	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	170In Stock	8,40 € 8,30 € 7,77 € 7,00 € 6,22 €	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 MID-OLLT LT3798 180 uH 108 W 750811351 Wurth Elektronik 1: 12,77 € 141In Stock 1.000Expected 12/17/2026	Mfr. Part No. 750811351 Mouser Part No 710-750811351	Wurth Elektronik	Power Transformers - Board Mount MID-OLLT LT3798 180 uH 108 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	141In Stock 1.000Expected 12/17/2026	12,77 € 12,61 € 11,82 € 10,64 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	36 V	108 W	3 A	Through Hole	Dual Primary Winding	Triple Secondary Winding	39.6 mm	43.18 mm	30.48 mm	MID-OLLT
Power Transformers - Board Mount MID-OLSTM L6599A 1.396 mH 12 W 760871131 Wurth Elektronik 1: 6,52 € Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 760871131 Mouser Part No 710-760871131	Wurth Elektronik	Power Transformers - Board Mount MID-OLSTM L6599A 1.396 mH 12 W Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	Non-Stocked Lead-Time 19 Weeks	6,52 € 6,05 € 5,59 € 5,12 € View 4,65 € 3,84 €	Min.: 1.050 Mult.: 70	Power	85 VAC to 265 VAC	12 V, 12 V	12 W	500 mA, 500 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	22.2 mm	25 mm	16 mm	MID-OLSTM
Power Transformers - Board Mount MID-OLLT LT3798 300 uH 48 W 750811248 Wurth Elektronik 1: 8,45 € 4.256In Stock	Mfr. Part No. 750811248 Mouser Part No 710-750811248	Wurth Elektronik	Power Transformers - Board Mount MID-OLLT LT3798 300 uH 48 W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	4.256In Stock	8,45 € 8,35 € 7,04 € 6,26 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	24 V	48 W	2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	31 mm	31 mm	25 mm	MID-OLLT
Power Transformers - Board Mount MID-OLTI TPS23758 150uH 5V 2.4A Flyback 250kHz 12W 750318525 Wurth Elektronik 1: 3,56 € 2.349In Stock	Mfr. Part No. 750318525 Mouser Part No 710-750318525	Wurth Elektronik	Power Transformers - Board Mount MID-OLTI TPS23758 150uH 5V 2.4A Flyback 250kHz 12W Learn More about Wurth Elektronik wurth electronics ac dc converter transformers	Datasheet	2.349In Stock	Cut Tape 3,56 € 3,30 € 2,93 € 2,55 € Reel 2,36 € MouseReel Available	Min.: 1 Mult.: 1 : 125	Flyback Transformers	36 VDC to 57 VDC	5 V		2 A	Board Mount	Single Primary Winding	Dual Secondary Winding	13.97 mm	18.25 mm	14.5 mm	MID-OLTI
Power Transformers - Board Mount MID-UNIT STM Offline 1.60mH 6.20Ohm 750370024 Wurth Elektronik 1: 5,01 € 1.430In Stock	Mfr. Part No. 750370024 Mouser Part No 710-750370024	Wurth Elektronik	Power Transformers - Board Mount MID-UNIT STM Offline 1.60mH 6.20Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	1.430In Stock	5,01 € 4,65 € 3,94 € 3,58 € 2,95 €	Min.: 1 Mult.: 1	Power	85 VAC to 424 VAC	12 V	6 W	500 mA	Through Hole	Single Primary Winding	Single Secondary Winding	13.72 mm	20.45 mm	10.8 mm	MID-OLSTM
Power Transformers - Board Mount MID-OLTI UCC28720 1.5 mH 5 W 7508110151 Wurth Elektronik 1: 3,67 € 842In Stock	Mfr. Part No. 7508110151 Mouser Part No 710-7508110151	Wurth Elektronik	Power Transformers - Board Mount MID-OLTI UCC28720 1.5 mH 5 W Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	842In Stock	3,67 € 3,41 € 2,88 € 2,62 € 2,16 €	Min.: 1 Mult.: 1	Flyback Transformers	85 VAC to 265 VAC	5 V	5 W	1 A	Through Hole	Dual Primary Winding	Single Secondary Winding	13.97 mm	13.97 mm	12.7 mm	MID-OLTI
Power Transformers - Board Mount WE-UNIT 4W SMD Offline Trnsfmr 7508170312 Wurth Elektronik 1: 4,27 € 723In Stock	Mfr. Part No. 7508170312 Mouser Part No 710-7508170312	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT 4W SMD Offline Trnsfmr Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	723In Stock	Cut Tape 4,27 € 3,96 € 3,59 € Reel 2,97 € MouseReel Available	Min.: 1 Mult.: 1 : 175	Power	55 VAC to 265 VAC	15 V	3.2 W	210 mA	SMD/SMT	Dual Primary Winding	Single Secondary Winding	13.8 mm	23.9 mm	11 mm	MID-OLEE
Power Transformers - Board Mount WE-UNIT Offline 220uH .21A .29Ohm 7491181012 Wurth Elektronik 1: 6,32 € 273In Stock 132Expected 2/12/2027	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	273In Stock 132Expected 2/12/2027	6,32 € 5,56 € 5,27 € 4,98 € View 4,68 € 4,55 €	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 WE-UNIT Offline 280uH .2A .05Ohm 749118105 Wurth Elektronik 1: 6,31 € 83In Stock	Mfr. Part No. 749118105 Mouser Part No 710-749118105	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 280uH .2A .05Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	83In Stock	6,31 € 5,56 € 5,26 € 4,97 € View 4,68 € 4,55 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	5 V	3 W	600 mA	Through Hole	Single Primary Winding	Single Secondary Winding	15 mm	11 mm	16.8 mm	WE-UNIT
Power Transformers - Board Mount WE-UNIT Offline 175uH .21A .29Ohm 7491181112 Wurth Elektronik 1: 6,32 € 102In Stock	Mfr. Part No. 7491181112 Mouser Part No 710-7491181112	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 175uH .21A .29Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	102In Stock	6,32 € 5,56 € 5,26 € 4,97 € View 4,68 € 4,55 €	Min.: 1 Mult.: 1	Power	85 VAC to 265 VAC	12 V	3 W	250 mA	Through Hole	Single Primary Winding	Single Secondary Winding	21.5 mm	15 mm	12 mm	WE-UNIT