Power Transformers - Board Mount

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WE-FLEX Flexible Transformers

Würth Elektronik WE-FLEX Flexible Transformers for DC/DC Converters provide six identical windings and are available in four sizes with five different lengths of air gap each. These transformers offer an isolation voltage of 500V_DC for the standard version and up to 1.5kV_AC for the high voltage (HV) version. By using different circuits, more than 375 transformer solutions and about 125 choke solutions possible. Other features include low leakage inductance and -40°C to +125°C operating temperature range. Würth Elektronik WE-FLEX Flexible Transformers are ideal for use in all types of switching regulators.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Power Rating	Secondary Current Rating	Mounting Style	Primary Winding	Secondary Winding	Length	Width	Height	Series
Power Transformers - Board Mount WE-FLEX DCR=344mOhms 27.4uH 500VDC SMD 749196111 Wurth Elektronik 1: $5.50 536In Stock	Mfr. Part # 749196111 Mouser Part # 710-749196111	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX DCR=344mOhms 27.4uH 500VDC SMD Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	536In Stock	Cut Tape $5.50 $5.02 $4.95 $4.54 Reel $3.55 View $4.04 $3.54 MouseReel Available	Min.: 1 Mult.: 1 : 500										WE-FLEX
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196201 Wurth Elektronik 1: $7.37 497In Stock	Mfr. Part # 749196201 Mouser Part # 710-749196201	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	497In Stock	Cut Tape $7.37 $6.63 $5.89 $5.15 Reel $4.43 MouseReel Available	Min.: 1 Mult.: 1 : 400										WE-FLEX
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 27.4uH .29A 749196118 Wurth Elektronik 1: $9.32 446In Stock	Mfr. Part # 749196118 Mouser Part # 710-749196118	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 27.4uH .29A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	446In Stock	Cut Tape $9.32 $9.30 $9.29 $8.36 Reel $5.87 View $7.43 $6.82 $5.30 MouseReel Available	Min.: 1 Mult.: 1 : 500	Signal Transformers			SMD/SMT	Triple Primary Winding	Triple Secondary Winding	12.9 mm	13 mm	6.2 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 6.6uH 1.6A 749196248 Wurth Elektronik 1: $9.77 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 $9.77 $8.80 $7.82 $7.17 Reel $7.16 MouseReel Available	Min.: 1 Mult.: 1 : 400	Signal Transformers			SMD/SMT	Triple Primary Winding	Triple Secondary Winding	16.3 mm	12 mm	7.4 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 87.1uH .08A 749196507 Wurth Elektronik 1: $12.03 42In Stock	Mfr. Part # 749196507 Mouser Part # 710-749196507	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 87.1uH .08A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	42In Stock	Cut Tape $12.03 $10.37 Reel $9.88 MouseReel Available	Min.: 1 Mult.: 1 : 120	Signal Transformers		2.3 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	29.5 mm	21.5 mm	12 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX W/Air Gap 9.9uH 1.17A 749196510 Wurth Elektronik 1: $10.32 159In Stock	Mfr. Part # 749196510 Mouser Part # 710-749196510	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 9.9uH 1.17A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	159In Stock	Cut Tape $10.32 $10.24 $9.71 Reel $8.73 $7.98	Min.: 1 Mult.: 1 : 120	Flexible Transformers	500 VA	1.91 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	21 mm	29.5 mm	10.8 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 22.3uH .93A 749196518 Wurth Elektronik 1: $12.36 179In Stock	Mfr. Part # 749196518 Mouser Part # 710-749196518	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 22.3uH .93A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	179In Stock	Cut Tape $12.36 $12.35 $12.34 $11.12 Reel $9.39 View $8.60 $7.82 $7.04 Quote MouseReel Available	Min.: 1 Mult.: 1 : 120	Signal Transformers		1.35 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	29.5 mm	21.5 mm	12 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196121 Wurth Elektronik 1: $6.21 980In Stock	Mfr. Part # 749196121 Mouser Part # 710-749196121	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter	Datasheet	980In Stock	Cut Tape $6.21 $5.58 $4.96 $4.34 Reel $3.73	Min.: 1 Mult.: 1 : 500										WE-FLEX
Power Transformers - Board Mount WE-FLEX W/Air Gap 9.3uH 1.09A 749196331 Wurth Elektronik 1: $7.47 280In Stock	Mfr. Part # 749196331 Mouser Part # 710-749196331	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 9.3uH 1.09A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	280In Stock	Cut Tape $7.47 $6.96 Reel $6.60 MouseReel Available	Min.: 1 Mult.: 1 : 300	Flexible Transformers	500 VA	970 mA	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	17.5 mm	22.1 mm	8.3 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX W/Air Gap 3.4uH 4.18A 749196540 Wurth Elektronik 1: $9.50 323In Stock	Mfr. Part # 749196540 Mouser Part # 710-749196540	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 3.4uH 4.18A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	323In Stock	Cut Tape $9.50 $7.21 $6.45 Reel $5.25	Min.: 1 Mult.: 1 : 120	Flexible Transformers	500 VA	1.7 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	21 mm	29.5 mm	10.8 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 224.6uH .02A 749196108 Wurth Elektronik 1: $9.30 146In Stock	Mfr. Part # 749196108 Mouser Part # 710-749196108	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 224.6uH .02A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	146In Stock	Cut Tape $9.30 $8.36 $7.43 $6.82 Reel $5.89 $5.30 MouseReel Available	Min.: 1 Mult.: 1 : 500	Signal Transformers			SMD/SMT	Triple Primary Winding	Triple Secondary Winding	12.9 mm	13 mm	6.2 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196131 Wurth Elektronik 1: $6.21 79In Stock 500Expected 10/2/2026	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	79In Stock 500Expected 10/2/2026	Cut Tape $6.21 $5.58 $4.96 $4.34 Reel $3.73	Min.: 1 Mult.: 1 : 500										WE-FLEX
Power Transformers - Board Mount WR-FLEX Flexible 8.5uH 0.55A 344mOhms 749196141 Wurth Elektronik 1: $6.75 320In Stock 500Expected 10/2/2026	Mfr. Part # 749196141 Mouser Part # 710-749196141	Wurth Elektronik	Power Transformers - Board Mount WR-FLEX Flexible 8.5uH 0.55A 344mOhms Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	320In Stock 500Expected 10/2/2026	Cut Tape $6.75 $6.09 $5.85 $5.67 Reel $5.10 View $5.49 $5.26 $4.85	Min.: 1 Mult.: 1 : 500	Flexible Transformers			SMD/SMT	Triple Primary Winding	Triple Secondary Winding	12.9 mm	13 mm	6.2 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX DCR=159mOhms 21.6uH 500VDC SMD 749196211 Wurth Elektronik 1: $6.25 288In Stock	Mfr. Part # 749196211 Mouser Part # 710-749196211	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX DCR=159mOhms 21.6uH 500VDC SMD Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	288In Stock	Cut Tape $6.25 $5.78 $5.33 $4.78 Reel $3.98 MouseReel Available	Min.: 1 Mult.: 1 : 400										WE-FLEX
Power Transformers - Board Mount WE-FLEX DCR=159mOhms 11.6uH 500VDC SMD 749196221 Wurth Elektronik 1: $6.25 100In Stock	Mfr. Part # 749196221 Mouser Part # 710-749196221	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX DCR=159mOhms 11.6uH 500VDC SMD Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	100In Stock	Cut Tape $6.25 $5.78 $5.33 $4.78 Reel $4.13 MouseReel Available	Min.: 1 Mult.: 1 : 400										WE-FLEX
Power Transformers - Board Mount WE-FLEX W/O Air Gap 153.8uH 0.02A 749196301 Wurth Elektronik 1: $7.82 214In Stock 300Expected 1/29/2027	Mfr. Part # 749196301 Mouser Part # 710-749196301	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/O Air Gap 153.8uH 0.02A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	214In Stock 300Expected 1/29/2027	Cut Tape $7.82 $6.33 $5.12 $4.79 $4.58 Reel $3.84 MouseReel Available	Min.: 1 Mult.: 1 : 300	Flexible Transformers	500 VA	970 mA	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	17.5 mm	22.1 mm	8.3 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX W/Air Gap 23.3uH 0.33A 749196311 Wurth Elektronik 1: $7.81 256In Stock	Mfr. Part # 749196311 Mouser Part # 710-749196311	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 23.3uH 0.33A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	256In Stock	Cut Tape $7.81 $6.32 $5.12 $4.79 Reel $4.35 View $4.58 $3.72 MouseReel Available	Min.: 1 Mult.: 1 : 300	Flexible Transformers	500 VA	970 mA	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	17.5 mm	22.1 mm	8.3 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX SMD 500VDC 196uH RDC=71.1mOhms 749196501 Wurth Elektronik 1: $11.16 119In Stock	Mfr. Part # 749196501 Mouser Part # 710-749196501	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX SMD 500VDC 196uH RDC=71.1mOhms Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	119In Stock	Cut Tape $11.16 $10.66 $8.82 Reel $5.83 $5.58 MouseReel Available	Min.: 1 Mult.: 1 : 120										WE-FLEX
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196511 Wurth Elektronik 1: $10.67 120In Stock	Mfr. Part # 749196511 Mouser Part # 710-749196511	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	120In Stock	Cut Tape $10.67 $10.20 $9.02 Reel $8.55	Min.: 1 Mult.: 1 : 120										WE-FLEX
Power Transformers - Board Mount WE-FLEX W/Air Gap 9.7uH 2.20A 749196531 Wurth Elektronik 1: $9.50 69In Stock	Mfr. Part # 749196531 Mouser Part # 710-749196531	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 9.7uH 2.20A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	69In Stock	Cut Tape $9.50 $9.02 Reel $8.55	Min.: 1 Mult.: 1 : 120	Flexible Transformers	500 VA	1.7 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	21 mm	29.5 mm	10.8 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX DCR=344mOhms 198.6uH 500VDC SMD 749196101 Wurth Elektronik 1: $5.64 990On Order	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	990On Order On Order Ship Dates Mfr. #: 749196101 Stock: 0 On Order: 490 Expected 10/2/2026 500 Expected 10/9/2026 Factory Lead-Time: 19 Weeks	Cut Tape $5.64 $5.03 $4.55 $4.05 Reel $3.74 MouseReel Available	Min.: 1 Mult.: 1 : 500										WE-FLEX
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 196uH .05A 749196508 Wurth Elektronik 1: $12.53 120Expected 10/9/2026	Mfr. Part # 749196508 Mouser Part # 710-749196508	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 196uH .05A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	120Expected 10/9/2026	Cut Tape $12.53 $12.52 $12.36 $11.30 Reel $9.89 View $9.07 $8.35 Quote MouseReel Available	Min.: 1 Mult.: 1 : 120	Signal Transformers		1.35 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	29.5 mm	21.5 mm	12 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX W/Air Gap 12.0uH 1.73A 749196521 Wurth Elektronik 1: $10.32 239Expected 10/2/2026	Mfr. Part # 749196521 Mouser Part # 710-749196521	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX W/Air Gap 12.0uH 1.73A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	239Expected 10/2/2026	Cut Tape $10.32 $10.25 $9.72 Reel $9.20 $8.41	Min.: 1 Mult.: 1 : 120	Flexible Transformers	500 VA	1.7 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	21 mm	29.5 mm	10.8 mm	WE-FLEX
Power Transformers - Board Mount WE-FLEX Trnsfmr HV 5.3uH 2.81A 749196527 Wurth Elektronik 1: $12.36 165Expected 10/13/2026	Mfr. Part # 749196527 Mouser Part # 710-749196527	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Trnsfmr HV 5.3uH 2.81A Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	165Expected 10/13/2026	Cut Tape $12.36 $11.13 Reel $9.89 $9.07 $8.24 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 120	Signal Transformers		2.3 A	SMD/SMT	Triple Primary Winding	Triple Secondary Winding	29.5 mm	21.5 mm	12 mm	WE-FLEX HV
Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter 749196241 Wurth Elektronik 1: $6.97 Non-Stocked Lead-Time 19 Weeks	Mfr. Part # 749196241 Mouser Part # 710-749196241	Wurth Elektronik	Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter Learn More about Wurth Elektronik wurthWEFLEXTransformer	Datasheet	Non-Stocked Lead-Time 19 Weeks	Cut Tape $6.97 $6.49 $6.33 $5.73 Reel $4.43 View $5.14 $5.13 $4.42	Min.: 1 Mult.: 1 : 400										WE-FLEX

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