Transformers – Mouser Japan

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WE-FB Flyback Transformers

Würth Elektronik WE-FB Flyback Transformers provide a straightforward design solution, requiring fewer external components and occupying minimal board space. These cost-effective transformers are compatible with multiple Linear Technologies (LT) chipsets, ensuring reliable voltage control over the long term. With an isolation voltage of up to 2.5kV, Würth Elektronik WE-FB Flyback Transformers deliver sustained performance and safety.

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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.	Power Rating	Primary Voltage Rating	Secondary Voltage Rating	Mounting Style
Power Transformers - Board Mount MID-FLYLT LT8302 9 uH 8.6 W 750313457 Wurth Elektronik 1: ¥687.7 8In Stock 2,750Expected 4/8/2027	Mfr. Part # 750313457 Mouser Part # 710-750313457	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8302 9 uH 8.6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	8In Stock 2,750Expected 4/8/2027	Cut Tape ¥687.7 ¥636.2 ¥578 ¥524.9 Reel ¥478.4 ¥433.5 MouseReel Available	Min.: 1 Mult.: 1 : 250	8.6 W	8 V to 32 V	48 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 3.3 W 750313973 Wurth Elektronik 1: ¥872 171In Stock 2,250On Order	Mfr. Part # 750313973 Mouser Part # 710-750313973	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 3.3 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	171In Stock 2,250On Order On Order Ship Dates Mfr. #: 750313973 Stock: 171 Can Ship Immediately On Order: 1,000 Expected 11/19/2026 1,250 Expected 2/18/2027 Factory Lead-Time: 17 Weeks	Cut Tape ¥872 ¥807.2 ¥734.2 ¥667.7 Reel ¥606.3 ¥551.5 MouseReel Available	Min.: 1 Mult.: 1 : 250	3.3 W	8 V to 32 V	3.3 V, 3.3 V	SMD/SMT
Power Transformers - Board Mount MID-IBTI LM5017MR 50 uH 1.5 W 750313995 Wurth Elektronik 1: ¥994.9 28In Stock	Mfr. Part # 750313995 Mouser Part # 710-750313995	Wurth Elektronik	Power Transformers - Board Mount MID-IBTI LM5017MR 50 uH 1.5 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	28In Stock	Cut Tape ¥994.9 ¥981.7 Reel ¥981.7 ¥735.8 MouseReel Available	Min.: 1 Mult.: 1 : 200	1.5 W	15 V to 40 V	5 V, 5 V, 15 V, 15 V	SMD/SMT
Power Transformers - Board Mount WE-FB Flyback 33.8uH 1.0A 10% TOL 750314226 Wurth Elektronik 1: ¥1,006.6 52In Stock 250Expected 11/26/2026	Mfr. Part # 750314226 Mouser Part # 710-750314226	Wurth Elektronik	Power Transformers - Board Mount WE-FB Flyback 33.8uH 1.0A 10% TOL Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	52In Stock 250Expected 11/26/2026	Cut Tape ¥1,006.6 ¥933.5 ¥862.1 ¥790.6 Reel ¥790.6 View ¥719.2 ¥593 MouseReel Available	Min.: 1 Mult.: 1 : 250	4.5 W	15 V to 40 V	15 V, 15 V	SMD/SMT
Power Transformers - Board Mount MID-IBTI LM5160 60 uH 3.9 W 750314597 Wurth Elektronik 1: ¥631.2 392In Stock 400Expected 11/2/2026	Mfr. Part # 750314597 Mouser Part # 710-750314597	Wurth Elektronik	Power Transformers - Board Mount MID-IBTI LM5160 60 uH 3.9 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	392In Stock 400Expected 11/2/2026	Cut Tape ¥631.2 ¥584.7 ¥483.4 Reel ¥438.5 ¥398.6 MouseReel Available	Min.: 1 Mult.: 1 : 400	3.9 W	10 V to 40 V	15.5 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.3 W 750315825 Wurth Elektronik 1: ¥460.1 20In Stock 400Expected 1/7/2027	Mfr. Part # 750315825 Mouser Part # 710-750315825	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.3 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	20In Stock 400Expected 1/7/2027	Cut Tape ¥460.1 ¥436.8 Reel ¥337.2 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 400	3.3 W	36 V to 72 V	3.3 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 2.9 W 750315827 Wurth Elektronik 1: ¥408.6 381In Stock	Mfr. Part # 750315827 Mouser Part # 710-750315827	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 2.9 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	381In Stock	Cut Tape ¥408.6 ¥387 Reel ¥299 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 400	2.9 W	36 V to 72 V	5 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.1 W 750315829 Wurth Elektronik 1: ¥408.6 730In Stock 2,800On Order	Mfr. Part # 750315829 Mouser Part # 710-750315829	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.1 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	730In Stock 2,800On Order On Order Ship Dates Mfr. #: 750315829 Stock: 730 Can Ship Immediately On Order: 1,200 Expected 11/19/2026 1,600 Expected 3/4/2027 Factory Lead-Time: 19 Weeks	Cut Tape ¥408.6 ¥387 ¥327.2 Reel ¥299 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 400	3.1 W	36 V to 72 V	24 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.5 W 750315834 Wurth Elektronik 1: ¥408.6 35In Stock	Mfr. Part # 750315834 Mouser Part # 710-750315834	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.5 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	35In Stock	Cut Tape ¥408.6 ¥387 Reel ¥299 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 400	3.5 W	36 V to 72 V	5 V, 5 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8304 40 uH 14.4 W 750315836 Wurth Elektronik 1: ¥498.3 489In Stock 1,000Expected 11/12/2026	Mfr. Part # 750315836 Mouser Part # 710-750315836	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8304 40 uH 14.4 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	489In Stock 1,000Expected 11/12/2026	Cut Tape ¥498.3 ¥475 ¥453.5 ¥430.2 Reel ¥430.2 ¥385.4 MouseReel Available	Min.: 1 Mult.: 1 : 200	14.4 W	36 V to 75 V	24 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8304 40 uH 14.4 W 750315837 Wurth Elektronik 1: ¥538.2 164In Stock 200Expected 12/24/2026	Mfr. Part # 750315837 Mouser Part # 710-750315837	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8304 40 uH 14.4 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	164In Stock 200Expected 12/24/2026	Cut Tape ¥538.2 ¥511.6 ¥488.3 ¥463.4 Reel ¥463.4 ¥415.3	Min.: 1 Mult.: 1 : 200	14.4 W	36 V to 75 V	48 V	SMD/SMT
Power Transformers - Board Mount MID-FLYADI ADP1031 150 uH 1.1 W 750316566 Wurth Elektronik 1: ¥1,727.4 200In Stock	Mfr. Part # 750316566 Mouser Part # 710-750316566	Wurth Elektronik	Power Transformers - Board Mount MID-FLYADI ADP1031 150 uH 1.1 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	200In Stock	Cut Tape ¥1,727.4 ¥1,594.6 ¥1,461.7 ¥1,328.8 Reel ¥1,096.3 ¥963.4 MouseReel Available	Min.: 1 Mult.: 1 : 675	1.1 W	18 V to 32 V	24 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3573 25 uH 6 W 750370058 Wurth Elektronik 1: ¥551.5 2In Stock 400Expected 11/19/2026	Mfr. Part # 750370058 Mouser Part # 710-750370058	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3573 25 uH 6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	2In Stock 400Expected 11/19/2026	Cut Tape ¥551.5 Reel ¥392 ¥323.9 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 400	6 W	10 V to 30 V	15 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 1.5 mH 9 W 750811048 Wurth Elektronik 1: ¥853.8 50In Stock	Mfr. Part # 750811048 Mouser Part # 710-750811048	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 1.5 mH 9 W Learn More about Wurth Elektronik wurth electronics dc dc converter transformers	Datasheet	50In Stock	¥853.8 ¥797.3 ¥740.8 ¥684.3 View ¥627.9 ¥529.9	Min.: 1 Mult.: 1	9 W	85 V to 265 V	30 V	Through Hole
Power Transformers - Board Mount WE-FB Flyback 5uH 500VAC 750311268 Wurth Elektronik 1: ¥1,199.2 17In Stock	Mfr. Part # 750311268 Mouser Part # 710-750311268	Wurth Elektronik	Power Transformers - Board Mount WE-FB Flyback 5uH 500VAC Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	17In Stock	Cut Tape ¥1,199.2 ¥1,106.2 Reel ¥1,106.2 ¥760.7 MouseReel Available	Min.: 1 Mult.: 1 : 300	5 W	9 V to 16 V	100 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT3512 175 uH 2 W 750311559 Wurth Elektronik 1: ¥760.7 229In Stock	Mfr. Part # 750311559 Mouser Part # 710-750311559	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT3512 175 uH 2 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	229In Stock	Cut Tape ¥760.7 ¥705.9 Reel ¥543.1 MouseReel Available	Min.: 1 Mult.: 1 : 300	2 W	35 V to 75 V	5 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3512 151 uH 6.24 W 750311662 Wurth Elektronik 1: ¥1,372 237In Stock	Mfr. Part # 750311662 Mouser Part # 710-750311662	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3512 151 uH 6.24 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	237In Stock	Cut Tape ¥1,372 ¥1,265.7 ¥1,161 ¥1,054.7 Reel ¥1,054.7 View ¥870.4 ¥764.1 MouseReel Available	Min.: 1 Mult.: 1 : 300	6.24 W	36 V to 72 V	48 V	SMD/SMT
Power Transformers - Board Mount MID-IBTI LM5017MRX 45 uH 1.5 W 750314462 Wurth Elektronik 1: ¥792.3 8In Stock	Mfr. Part # 750314462 Mouser Part # 710-750314462	Wurth Elektronik	Power Transformers - Board Mount MID-IBTI LM5017MRX 45 uH 1.5 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	8In Stock	Cut Tape ¥792.3 ¥732.5 Reel ¥551.5 MouseReel Available	Min.: 1 Mult.: 1 : 500	1.5 W	16 V to 36 V	- 12 V, 5 V, 12 V	SMD/SMT
Power Transformers - Board Mount WE-FB SMD Flyback On REFDsgn LM3481 TI 750316152 Wurth Elektronik 1: ¥2,649.3 46In Stock	Mfr. Part # 750316152 Mouser Part # 710-750316152	Wurth Elektronik	Power Transformers - Board Mount WE-FB SMD Flyback On REFDsgn LM3481 TI Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	46In Stock	Cut Tape ¥2,649.3 ¥2,445 Reel ¥2,445 ¥1,680.9 MouseReel Available	Min.: 1 Mult.: 1 : 100	36 W	5 V to 32 V	12 V	SMD/SMT
Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 2.8 W 750313972 Wurth Elektronik 1: ¥973.3 7,750On Order	Mfr. Part # 750313972 Mouser Part # 710-750313972	Wurth Elektronik	Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 2.8 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	7,750On Order On Order Ship Dates Mfr. #: 750313972 Stock: 0 On Order: 1,000 Expected 10/30/2026 4,000 Expected 12/24/2026 2,750 Expected 4/8/2027 Factory Lead-Time: 17 Weeks	Cut Tape ¥973.3 ¥900.3 ¥818.9 ¥744.1 Reel ¥676 View ¥614.6 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	2.8 W	18 V to 42 V	5 V, 5 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3751 2.5 uH 127.5 W 750310355 Wurth Elektronik 1: ¥2,142.7 375Expected 3/11/2027	Mfr. Part # 750310355 Mouser Part # 710-750310355	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3751 2.5 uH 127.5 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	375Expected 3/11/2027	¥2,142.7 ¥2,006.5 ¥1,744.1 ¥1,569.6 ¥1,245.8	Min.: 1 Mult.: 1	127.5 W	24 V	75 V	Through Hole
Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W 750310562 Wurth Elektronik 1: ¥1,009.9 477Expected 11/2/2026	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	477Expected 11/2/2026	Cut Tape ¥1,009.9 ¥936.8 Reel ¥720.9 MouseReel Available	Min.: 1 Mult.: 1 : 250	9.6 W	18 V to 30 V	12 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W 750310563 Wurth Elektronik 1: ¥1,215.9 800Expected 2/4/2027	Mfr. Part # 750310563 Mouser Part # 710-750310563	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	800Expected 2/4/2027	Cut Tape ¥1,215.9 ¥1,126.2 ¥1,079.7 ¥1,046.4 Reel ¥981.7 View ¥991.6 ¥933.5 ¥896.9 Quote	Min.: 1 Mult.: 1 : 200	9.6 W	18 V to 30 V	12 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3573 25 uH 5.6 W 750310799 Wurth Elektronik 1: ¥568.1 2,398Expected 11/26/2026	Mfr. Part # 750310799 Mouser Part # 710-750310799	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3573 25 uH 5.6 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	2,398Expected 11/26/2026	Cut Tape ¥568.1 Reel ¥568.1 ¥546.5 MouseReel Available	Min.: 1 Mult.: 1 : 300	5.6 W	18 V to 30 V	15 V	SMD/SMT
Power Transformers - Board Mount WE-FB LT3748 37 uH 25.2 W 750311439 Wurth Elektronik 1: ¥765.7 798Expected 10/30/2026	Mfr. Part # 750311439 Mouser Part # 710-750311439	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 37 uH 25.2 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	798Expected 10/30/2026	Cut Tape ¥765.7 ¥722.5 ¥679.3 ¥637.8 Reel ¥594.6 ¥523.2 MouseReel Available	Min.: 1 Mult.: 1 : 200	25.2 W	37 V to 57 V	12 V	SMD/SMT