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Power Transformers - Board Mount

Board Mount Power Transformers are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many board mount power transformer manufacturers including Bel, Bourns, Pulse, Tamura, Triad Magnetics, Wurth Elektronik & more. Please view our selection of power transformers below.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 WE-PoE+ Size EFD20 42uH 0.061ohm 7491194912 Wurth Elektronik 1: ¥998.3 456In Stock	Mfr. Part # 7491194912 Mouser Part # 710-7491194912	Wurth Elektronik	Power Transformers - Board Mount WE-PoE+ Size EFD20 42uH 0.061ohm Learn More about Wurth Elektronik we PoE transformers	Datasheet	456In Stock	Cut Tape ¥998.3 ¥963.4 ¥910.2 Reel ¥855.4 ¥802.3 MouseReel Available	Min.: 1 Mult.: 1 : 125	POE - Power Over Ethernet Transformers	36 V to 72 V	12 V	30 W	2.5 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	23.11 mm	29.08 mm	11.43 mm	WE-PoE+
Power Transformers - Board Mount WE-PoE Size ER13 127uH 220mOhm 7491199112 Wurth Elektronik 1: ¥1,021.5 1,400In Stock	Mfr. Part # 7491199112 Mouser Part # 710-7491199112	Wurth Elektronik	Power Transformers - Board Mount WE-PoE Size ER13 127uH 220mOhm Learn More about Wurth Elektronik we PoE transformers	Datasheet	1,400In Stock	Cut Tape ¥1,021.5 ¥983.3 ¥930.2 ¥875.3 Reel ¥779 ¥762.4 MouseReel Available	Min.: 1 Mult.: 1 : 200	POE - Power Over Ethernet Transformers	36 V to 57 V	12 V	13 W	550 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	13.46 mm	17.75 mm	12.7 mm	WE-PoE
Power Transformers - Board Mount WE-PoE Size ER13 127uH 40mohm 749119950 Wurth Elektronik 1: ¥999.9 433In Stock 600Expected 11/6/2026	Mfr. Part # 749119950 Mouser Part # 710-749119950	Wurth Elektronik	Power Transformers - Board Mount WE-PoE Size ER13 127uH 40mohm Learn More about Wurth Elektronik we PoE transformers	Datasheet	433In Stock 600Expected 11/6/2026	Cut Tape ¥999.9 ¥963.4 ¥910.2 ¥855.4 Reel ¥762.4 MouseReel Available	Min.: 1 Mult.: 1 : 200	POE - Power Over Ethernet Transformers	36 V to 57 V	5 V	13 W	1.3 A	SMD/SMT	Single Primary Winding	Dual Secondary Winding	13.46 mm	17.75 mm	12.7 mm	WE-PoE
Power Transformers - Board Mount WE-FLEX DCR=344mOhms 198.6uH 500VDC SMD 749196101 Wurth Elektronik 1: ¥936.8 920In Stock	Mfr. Part # 749196101 Mouser Part # 710-749196101	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX DCR=344mOhms 198.6uH 500VDC SMD Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	920In Stock	Cut Tape ¥936.8 ¥852.1 ¥770.7 ¥686 Reel ¥621.2 ¥589.7 MouseReel Available	Min.: 1 Mult.: 1 : 500												WE-FLEX
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196121 Wurth Elektronik 1: ¥1,031.5 939In Stock	Mfr. Part # 749196121 Mouser Part # 710-749196121	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter	Datasheet	939In Stock	Cut Tape ¥1,031.5 ¥926.8 ¥823.9 ¥720.9 Reel ¥632.8 ¥619.6	Min.: 1 Mult.: 1 : 500												WE-FLEX
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196131 Wurth Elektronik 1: ¥1,031.5 579In Stock	Mfr. Part # 749196131 Mouser Part # 710-749196131	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	579In Stock	Cut Tape ¥1,031.5 ¥926.8 ¥823.9 ¥720.9 Reel ¥619.6	Min.: 1 Mult.: 1 : 500												WE-FLEX
Power Transformers - Board Mount WE-FB LT3750 10 uH 36 W 750032050 Wurth Elektronik 1: ¥1,956.7 301In Stock	Mfr. Part # 750032050 Mouser Part # 710-750032050	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3750 10 uH 36 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	301In Stock	Cut Tape ¥1,956.7 ¥1,805.5 ¥1,656 ¥1,504.9 Reel ¥1,504.9 View ¥1,240.8 ¥1,091.3 MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	3 V to 24 V	300 V	36 W	120 mA	SMD/SMT	Single Primary Winding	Single Secondary Winding	18.01 mm	23.11 mm	9.4 mm	WE-FB
Power Transformers - Board Mount WE-FB LT3751 10 uH 750032052 Wurth Elektronik 1: ¥1,800.5 2,013In Stock	Mfr. Part # 750032052 Mouser Part # 710-750032052	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3751 10 uH Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	2,013In Stock	Cut Tape ¥1,800.5 ¥1,687.6 ¥1,612.8 Reel ¥1,466.7 ¥1,320.5 MouseReel Available	Min.: 1 Mult.: 1 : 125	Flyback Transformers					SMD/SMT	Single Primary Winding	Single Secondary Winding	28.7 mm	21.97 mm	11.43 mm	WE-FB
Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W 750310562 Wurth Elektronik 1: ¥1,009.9 477In Stock	Mfr. Part # 750310562 Mouser Part # 710-750310562	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	477In Stock	Cut Tape ¥1,009.9 ¥936.8 Reel ¥720.9 MouseReel Available	Min.: 1 Mult.: 1 : 250	Flyback Transformers	18 V to 30 V	12 V	9.6 W	800 mA	SMD/SMT	Single Primary Winding	Single Secondary Winding	13.34 mm	15.24 mm	11.43 mm	WE-FB
Power Transformers - Board Mount WE-POE LT4276 38 uH 25.2 W 750310742 Wurth Elektronik 1: ¥792.3 1,011In Stock	Mfr. Part # 750310742 Mouser Part # 710-750310742	Wurth Elektronik	Power Transformers - Board Mount WE-POE LT4276 38 uH 25.2 W Learn More about Wurth Elektronik we PoE transformers	Datasheet	1,011In Stock	Cut Tape ¥792.3 ¥735.8 ¥679.3 ¥622.9 Reel ¥566.4 ¥466.7 MouseReel Available	Min.: 1 Mult.: 1 : 200	POE - Power Over Ethernet Transformers	37 V to 57 V	12 V	25.2 W	2.1 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	13.46 mm	17.75 mm	12.7 mm	WE-POE
Power Transformers - Board Mount MID-FLYLT LT8300 400 uH 2 W 750311019 Wurth Elektronik 1: ¥875.3 683In Stock	Mfr. Part # 750311019 Mouser Part # 710-750311019	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8300 400 uH 2 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	683In Stock	Cut Tape ¥875.3 ¥812.2 Reel ¥624.5 MouseReel Available	Min.: 1 Mult.: 1 : 300	Flyback Transformers	35 V to 75 V	3.3 V	2 W	600 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	9.78 mm	9.14 mm	10.54 mm	MID-FLYLT
Power Transformers - Board Mount WE-FB LT3574 3 uH 12 W 750311308 Wurth Elektronik 1: ¥1,204.2 428In Stock	Mfr. Part # 750311308 Mouser Part # 710-750311308	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3574 3 uH 12 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	428In Stock	Cut Tape ¥1,204.2 ¥1,088 ¥1,043.1 ¥1,011.5 Reel ¥936.8 View ¥980 ¥890.3 ¥882 MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	36 V	24 V	12 W	500 mA	SMD/SMT	Single Primary Winding	Single Secondary Winding	15.24 mm	13.34 mm	11.43 mm	WE-FB
Power Transformers - Board Mount MID-POETI TPS23754 100 uH 30 W 750311320 Wurth Elektronik 1: ¥700.9 898In Stock	Mfr. Part # 750311320 Mouser Part # 710-750311320	Wurth Elektronik	Power Transformers - Board Mount MID-POETI TPS23754 100 uH 30 W Learn More about Wurth Elektronik we PoE transformers	Datasheet	898In Stock	Cut Tape ¥700.9 ¥657.8 Reel ¥551.5 ¥524.9 MouseReel Available	Min.: 1 Mult.: 1 : 200	POE - Power Over Ethernet Transformers	33 V to 57 V	12 V	30 W	2.5 A	SMD/SMT	Single Primary Winding	Dual Secondary Winding	13.46 mm	17.75 mm	12.7 mm	MID-POETI
Power Transformers - Board Mount WE-FB LT3748 50 uH 20 W 750311423 Wurth Elektronik 1: ¥1,202.6 570In Stock	Mfr. Part # 750311423 Mouser Part # 710-750311423	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 50 uH 20 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	570In Stock	Cut Tape ¥1,202.6 ¥1,126.2 ¥1,018.2 Reel ¥988.3 ¥923.5 MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	36 V	5 V	20 W	4 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	13.46 mm	17.75 mm	12.7 mm	WE-FB
Power Transformers - Board Mount WE-FB LT3575 25 uH 10 W 750311675 Wurth Elektronik 1: ¥1,445.1 408In Stock	Mfr. Part # 750311675 Mouser Part # 710-750311675	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3575 25 uH 10 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	408In Stock	Cut Tape ¥1,445.1 ¥1,333.8 ¥1,222.5 ¥1,111.2 Reel ¥991.6 View ¥921.9 ¥887 MouseReel Available	Min.: 1 Mult.: 1 : 250	Flyback Transformers	9 V to 30 V	5 V	10 W	2 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	13.34 mm	15.24 mm	11.43 mm	WE-FB
Power Transformers - Board Mount WE-FB LT3748 400 uH 45 W 750311771 Wurth Elektronik 1: ¥2,385.2 602In Stock 1,000Expected 12/10/2026	Mfr. Part # 750311771 Mouser Part # 710-750311771	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 400 uH 45 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	602In Stock 1,000Expected 12/10/2026	Cut Tape ¥2,385.2 ¥2,234 ¥2,137.7 Reel ¥1,943.4 ¥1,749 MouseReel Available	Min.: 1 Mult.: 1 : 100	Flyback Transformers	157 V to 629 VAC	15 V	45 W	3 A	SMD/SMT	Dual Primary Winding	Triple Secondary Winding	27.03 mm	32.31 mm	13.69 mm	WE-FB
Power Transformers - Board Mount WE-FB LT3748 20 uH 60 W 750311783 Wurth Elektronik 1: ¥2,385.2 915In Stock	Mfr. Part # 750311783 Mouser Part # 710-750311783	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 20 uH 60 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	915In Stock	Cut Tape ¥2,385.2 ¥2,234 ¥2,137.7 Reel ¥1,943.4 ¥1,749 MouseReel Available	Min.: 1 Mult.: 1 : 100	Flyback Transformers	19 V to 70 V	24 V	60 W	2.5 A	SMD/SMT	Dual Primary Winding	Triple Secondary Winding	27.03 mm	32.31 mm	13.69 mm	WE-FB
Power Transformers - Board Mount MID-FLYLT LT8300 350 uH 2.1 W 750311838 Wurth Elektronik 1: ¥647.8 1,130In Stock	Mfr. Part # 750311838 Mouser Part # 710-750311838	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8300 350 uH 2.1 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	1,130In Stock	Cut Tape ¥647.8 ¥586.3 ¥546.5 ¥529.9 Reel ¥504.9 View ¥465.1 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	Flyback Transformers	36 V to 72 V	15 V, 15 V	2.1 W	70 mA, 70 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	9.78 mm	9.14 mm	10.54 mm	MID-FLYLT
Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 3.6 W 750312365 Wurth Elektronik 1: ¥589.7 677In Stock	Mfr. Part # 750312365 Mouser Part # 710-750312365	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 3.6 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	677In Stock	Cut Tape ¥589.7 ¥395.3 Reel ¥395.3 MouseReel Available	Min.: 1 Mult.: 1 : 400	POE - Power Over Ethernet Transformers	30 V to 72 V	12 V	3.6 W	300 mA	SMD/SMT	Dual Primary Winding	Single Secondary Winding	10.16 mm	13.36 mm	8.64 mm	MID-FLYLT
Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 1.7 W 750312367 Wurth Elektronik 1: ¥604.6 714In Stock	Mfr. Part # 750312367 Mouser Part # 710-750312367	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 1.7 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	714In Stock	Cut Tape ¥604.6 ¥568.1 ¥511.6 Reel ¥458.4 ¥395.3 MouseReel Available	Min.: 1 Mult.: 1 : 400	Flyback Transformers	22 V to 72 V	3.3 V	1.7 W	500 mA	SMD/SMT	Dual Primary Winding	Single Secondary Winding	10.16 mm	13.36 mm	8.64 mm	MID-FLYLT
Power Transformers - Board Mount WE-FB LTC3300 3.46 uH 5 W 750312504 Wurth Elektronik 1: ¥509.9 1,864In Stock	Mfr. Part # 750312504 Mouser Part # 710-750312504	Wurth Elektronik	Power Transformers - Board Mount WE-FB LTC3300 3.46 uH 5 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	1,864In Stock	Cut Tape ¥509.9 ¥473.4 ¥436.8 ¥400.3 Reel ¥400.3 View ¥363.8 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	2 V to 5.5 V	20 V	5 W	250 mA	SMD/SMT	Dual Primary Winding	Dual Secondary Winding	13.46 mm	17.75 mm	12.7 mm	WE-FB
Power Transformers - Board Mount MID-POELT LT4295 44 uH 11.5 W 750313109 Wurth Elektronik 1: ¥931.8 1,781In Stock 1,200Expected 2/25/2027	Mfr. Part # 750313109 Mouser Part # 710-750313109	Wurth Elektronik	Power Transformers - Board Mount MID-POELT LT4295 44 uH 11.5 W Learn More about Wurth Elektronik we PoE transformers	Datasheet	1,781In Stock 1,200Expected 2/25/2027	Cut Tape ¥931.8 ¥885.3 ¥822.2 ¥745.8 Reel ¥682.7 MouseReel Available	Min.: 1 Mult.: 1 : 300	POE - Power Over Ethernet Transformers	36 V to 57 V	5 V	11.5 W	2.3 A	SMD/SMT	Single Primary Winding	Dual Secondary Winding	9.78 mm	9.14 mm	10.54 mm	MID-POELT
Power Transformers - Board Mount MID-POETI TPS2379 100 uH 60 W 750313355 Wurth Elektronik 1: ¥1,011.5 483In Stock	Mfr. Part # 750313355 Mouser Part # 710-750313355	Wurth Elektronik	Power Transformers - Board Mount MID-POETI TPS2379 100 uH 60 W Learn More about Wurth Elektronik we PoE transformers	Datasheet	483In Stock	Cut Tape ¥1,011.5 ¥951.8 ¥812.2 Reel ¥812.2 ¥759.1 MouseReel Available	Min.: 1 Mult.: 1 : 110	POE - Power Over Ethernet Transformers	36 V to 72 V	12 V	60 W	5 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	23.11 mm	29.08 mm	11.43 mm	MID-POETI
Power Transformers - Board Mount WE-PPTI SN6501 TOR4.3/2.8/2.3 0.5W SMT 750313710 Wurth Elektronik 1: ¥347.1 2,941In Stock	Mfr. Part # 750313710 Mouser Part # 710-750313710	Wurth Elektronik	Power Transformers - Board Mount WE-PPTI SN6501 TOR4.3/2.8/2.3 0.5W SMT	Datasheet	2,941In Stock	Cut Tape ¥347.1 ¥302.3 ¥292.3 ¥284 View Reel ¥235.9 ¥272.4 ¥264.1 ¥235.9 MouseReel Available	Min.: 1 Mult.: 1 : 1,200												WE-PPTI
Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 3.6 W 750313974 Wurth Elektronik 1: ¥872 939In Stock	Mfr. Part # 750313974 Mouser Part # 710-750313974	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 3.6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	939In Stock	Cut Tape ¥872 ¥807.2 ¥734.2 ¥667.7 Reel ¥606.3 ¥551.5 MouseReel Available	Min.: 1 Mult.: 1 : 250	Flyback Transformers	8 V to 32 V	5 V, 5 V	3.6 W	360 mA, 360 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	15.24 mm	13.34 mm	11.43 mm	MID-FLYLT