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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 TRANSFORMER SPLIT-TRAN DST-2 DST-2-56 Bel Signal Transformer 1: ¥2,265.6 34In Stock	Mfr. Part # DST-2-56 Mouser Part # 530-DST-2-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	34In Stock	¥2,265.6 ¥1,926.8 ¥1,848.7 ¥1,787.2 ¥1,518.2	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	56 V CT/28 V	1.1 VA	20 mA/40 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP 78250JVC-R Murata Power Solutions 1: ¥843.8 241In Stock 500Expected 11/6/2026	Mfr. Part # 78250JVC-R Mouser Part # 580-78250JVC-R	Murata Power Solutions	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP Learn More about Murata Power Solutions Murata78250J	Datasheet	241In Stock 500Expected 11/6/2026	Cut Tape ¥843.8 ¥676 ¥649.5 ¥629.5 Reel ¥544.8 View ¥609.6 ¥584.7 ¥536.5 ¥529.9 MouseReel Available	Min.: 1 Mult.: 1 : 500					300 mA	SMD/SMT			12.7 mm	9 mm	6.35 mm	78250
Power Transformers - Board Mount WE-UNIT Offline 245uH .21A 1.2Ohm 7491181024 Wurth Elektronik 1: ¥1,220.8 110In Stock	Mfr. Part # 7491181024 Mouser Part # 710-7491181024	Wurth Elektronik	Power Transformers - Board Mount WE-UNIT Offline 245uH .21A 1.2Ohm Learn More about Wurth Elektronik wurthWEUNITTransformer	Datasheet	110In Stock	¥1,220.8 ¥1,073 ¥1,016.5 ¥960.1 View ¥903.6 ¥878.7	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-FB LT3573 25 uH 9.6 W 750310563 Wurth Elektronik 1: ¥1,215.9 200In Stock 1,200On Order	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	200In Stock 1,200On Order On Order Ship Dates Mfr. #: 750310563 Stock: 200 Can Ship Immediately On Order: 1,000 Expected 10/15/2026 200 Expected 10/19/2026 Factory Lead-Time: 19 Weeks	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	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-FB LT3748 12 uH 30 W 750311600 Wurth Elektronik 1: ¥1,946.7 114In Stock	Mfr. Part # 750311600 Mouser Part # 710-750311600	Wurth Elektronik	Power Transformers - Board Mount WE-FB LT3748 12 uH 30 W Learn More about Wurth Elektronik wurth elec WE FB flyback transformers	Datasheet	114In Stock	Cut Tape ¥1,946.7 ¥1,823.8 Reel ¥1,823.8 ¥1,426.8 MouseReel Available	Min.: 1 Mult.: 1 : 125	Flyback Transformers	30 V to 75 V	15 V	30 W	2 A	SMD/SMT	Single Primary Winding	Single Secondary Winding	23.11 mm	29.08 mm	11.43 mm	WE-FB
Power Transformers - Board Mount WE-AGDT 1ED3491MU12M 400 mH 750317493 Wurth Elektronik 1: ¥1,136.1 498In Stock 250Expected 10/19/2026	Mfr. Part # 750317493 Mouser Part # 710-750317493	Wurth Elektronik	Power Transformers - Board Mount WE-AGDT 1ED3491MU12M 400 mH Learn More about Wurth Elektronik wurth auxiliary gate drive transformers	Datasheet	498In Stock 250Expected 10/19/2026	Cut Tape ¥1,136.1 ¥1,056.4 ¥975 ¥893.6 Reel ¥812.2 ¥669.4 MouseReel Available	Min.: 1 Mult.: 1 : 250	Transformers	12 V to 20 V	15 V		100 mA	SMD/SMT	Single Primary Winding	Dual Secondary Winding	20.48 mm	15.32 mm	4 mm	WE-AGDT
Power Transformers - Board Mount THROUGH HOLE 2.4VA 3FS-356 Tamura 1: ¥1,006.6 44In Stock	Mfr. Part # 3FS-356 Mouser Part # 838-3FS-356	Tamura	Power Transformers - Board Mount THROUGH HOLE 2.4VA	Datasheet	44In Stock	¥1,006.6 ¥855.4 ¥822.2 ¥762.4 View ¥700.9 ¥626.2 ¥612.9 ¥601.3 ¥593	Min.: 1 Mult.: 1		115 VAC	28 V/56 V	2.4 VA		Through Hole	Single Primary Winding	Dual Secondary Winding				3FS
Power Transformers - Board Mount TGSP-P111EP13LF HALO Electronics 1: ¥2,059.6 400In Stock	Mfr. Part # TGSP-P111EP13LF Mouser Part # 493-TGSP-P111EP13LF	HALO Electronics	Power Transformers - Board Mount		400In Stock	¥2,059.6 ¥1,470 ¥1,235.8 ¥1,029.8 View ¥772.4 ¥616.2 ¥561.4 Quote	Min.: 1 Mult.: 1												TGSP
Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC 14A-56-515 Bel Signal Transformer 1: ¥6,049.4 28In Stock	Mfr. Part # 14A-56-515 Mouser Part # 530-14A-56-515	Bel Signal Transformer	Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	28In Stock	¥6,049.4 ¥5,280.3 ¥5,047.8 ¥4,802 View ¥4,675.7 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	5 V/15 V	56 VA	250 mA/3 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER CLASS 2 10VA REV CL2-10R-24 Bel Signal Transformer 1: ¥2,875.2 61In Stock	Mfr. Part # CL2-10R-24 Mouser Part # 530-CL2-10R-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER CLASS 2 10VA REV	Datasheet	61In Stock	¥2,875.2 ¥2,478.2 ¥2,328.7 ¥2,245.7 View ¥2,174.2 ¥2,082.9 ¥2,077.9 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V	10 VA	420 mA	Through Hole	Dual Primary Winding	Single Secondary Winding	47.6 mm	39.7 mm	34.9 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-10 IF-10-34 Bel Signal Transformer 1: ¥6,127.4 34In Stock	Mfr. Part # IF-10-34 Mouser Part # 530-IF-10-34	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-10 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	34In Stock	¥6,127.4 ¥5,399.9 ¥5,069.4 ¥5,066.1 View ¥5,021.2 ¥4,745.5 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	34 V CT/17 V	10 VA	300 mA/600 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	67.6 mm	57 mm	22.6 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-4 IF-4-16 Bel Signal Transformer 1: ¥5,710.5 47In Stock	Mfr. Part # IF-4-16 Mouser Part # 530-IF-4-16	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-4 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	47In Stock	¥5,710.5 ¥4,956.4 ¥4,649.1 ¥4,625.9 View ¥4,579.4 ¥4,527.9 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	16 V CT/8 V	4 VA	250 mA/500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	53 mm	44 mm	19.6 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-4 IF-4-56 Bel Signal Transformer 1: ¥5,341.8 46In Stock	Mfr. Part # IF-4-56 Mouser Part # 530-IF-4-56	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-4 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	46In Stock	¥5,341.8 ¥4,571.1 ¥4,275.4 ¥4,238.9 View ¥4,212.3 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	56 V CT/28 V	4 VA	70 mA/140 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	53 mm	44 mm	19.6 mm
Power Transformers - Board Mount TRANS FLAT HEAD LP-02 LP-230-25 Bel Signal Transformer 1: ¥3,587.8 64In Stock	Mfr. Part # LP-230-25 Mouser Part # 530-LP-230-25	Bel Signal Transformer	Power Transformers - Board Mount TRANS FLAT HEAD LP-02 Learn More about Bel Signal Transformer signal transformer lp transformers	Datasheet	64In Stock	¥3,587.8 ¥3,232.3 ¥3,099.4 ¥2,856.9 ¥2,599.5	Min.: 1 Mult.: 1		115 VAC, 230 VAC	230 V CT/115 V	6 VA	25 mA/50 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	47.5 mm	39.6 mm	21.6 mm	LP
Power Transformers - Board Mount PoE EP10 Core SPOE7-0508 Bel Signal Transformer 1: ¥744.1 1,546In Stock	Mfr. Part # SPOE7-0508 Mouser Part # 530-SPOE7-0508	Bel Signal Transformer	Power Transformers - Board Mount PoE EP10 Core Learn More about Bel Signal Transformer s spoe smt transformers	Datasheet	1,546In Stock	Cut Tape ¥744.1 ¥636.2 ¥548.1 ¥531.5 Reel ¥463.4 View ¥476.7 ¥451.8 ¥436.8 ¥433.5	Min.: 1 Mult.: 1 : 250	POE - Power Over Ethernet Transformers											SPOE
Power Transformers - Board Mount WE-PoE Size ER13 127uH 450mOhm 7491199212 Wurth Elektronik 1: ¥999.9 317In Stock	Mfr. Part # 7491199212 Mouser Part # 710-7491199212	Wurth Elektronik	Power Transformers - Board Mount WE-PoE Size ER13 127uH 450mOhm Learn More about Wurth Elektronik we PoE transformers	Datasheet	317In Stock	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	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 THROUGH HOLE 6VA 3FL16-350 Tamura 1: ¥2,685.8 450In Stock	Mfr. Part # 3FL16-350 Mouser Part # 838-3FL16-350	Tamura	Power Transformers - Board Mount THROUGH HOLE 6VA	Datasheet	450In Stock	¥2,685.8 ¥2,283.9 ¥2,190.9 ¥2,122.8 View ¥2,054.7 ¥1,754 ¥1,750.7 ¥1,740.7 Quote	Min.: 1 Mult.: 1												3FL
Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED 14A-5.0R-28 Bel Signal Transformer 1: ¥1,979.9 98In Stock 100On Order	Mfr. Part # 14A-5.0R-28 Mouser Part # 530-14A-5.0R-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	98In Stock 100On Order	¥1,979.9 ¥1,815.5 ¥1,705.8 ¥1,642.7 View ¥1,543.1 ¥1,519.8 ¥1,473.3 ¥1,436.8	Min.: 1 Mult.: 1		115 VAC, 230 VAC	28 V CT/14 V	5 VA	180 mA/360 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	36.5 mm	34.9 mm	14A
Power Transformers - Board Mount LOW PROF INTL TRANS 2-LPI 230-25-LPI Bel Signal Transformer 1: ¥4,780.4 39In Stock	Mfr. Part # 230-25-LPI Mouser Part # 530-230-25-LPI	Bel Signal Transformer	Power Transformers - Board Mount LOW PROF INTL TRANS 2-LPI	Datasheet	39In Stock	¥4,780.4 ¥4,302 ¥4,029.6 ¥3,813.7 View ¥3,715.7 ¥3,617.7 ¥3,612.7 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	230 V CT/115 V	6 VA	25 mA/50 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	55.6 mm	38.1 mm	22.7 mm
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 DST-3-48 Bel Signal Transformer 1: ¥2,717.4 113In Stock	Mfr. Part # DST-3-48 Mouser Part # 530-DST-3-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	113In Stock	¥2,717.4 ¥2,285.5 ¥2,190.9 ¥2,165.9 ¥1,873.6	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	48 V CT/24 V	2.4 VA	50 mA/100 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	DST
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-18 IF-18-16 Bel Signal Transformer 1: ¥7,153.9 33In Stock	Mfr. Part # IF-18-16 Mouser Part # 530-IF-18-16	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-18 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	33In Stock	¥7,153.9 ¥6,247 ¥5,871.6 ¥5,868.3 View ¥5,821.8 ¥5,757 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	16 V CT/8 V	18 VA	1.15 A/2.3 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	67.6 mm	57 mm	27.6 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-30 IF-30-30 Bel Signal Transformer 1: ¥8,524.3 38In Stock	Mfr. Part # IF-30-30 Mouser Part # 530-IF-30-30	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-30 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	38In Stock	¥8,524.3 ¥7,670.5 ¥6,723.7 ¥6,693.8 View ¥6,614.1 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	30 V CT/15 V	30 VA	1 A/2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	68 mm	57.5 mm	35.3 mm
Power Transformers - Board Mount TRANSFORMER POWER PC-2 PC-12-800 Bel Signal Transformer 1: ¥3,257.2 84In Stock	Mfr. Part # PC-12-800 Mouser Part # 530-PC-12-800	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER PC-2 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	84In Stock	¥3,257.2 ¥2,842 ¥2,725.7 ¥2,561.3 View ¥2,380.2 ¥2,337 Quote	Min.: 1 Mult.: 1		115 VAC	12.6 V CT/6.3 V	10 VA	800 mA/1.6 A	Through Hole	Single Primary Winding	Dual Secondary Winding	47.6 mm	36.5 mm	41.27 mm	PC
Power Transformers - Board Mount TRANSFORMER POWER PC-5 PC-40-30 Bel Signal Transformer 1: ¥2,692.5 75In Stock	Mfr. Part # PC-40-30 Mouser Part # 530-PC-40-30	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER PC-5 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	75In Stock	¥2,692.5 ¥2,302.1 ¥2,207.5 ¥2,001.5 View ¥1,999.8 ¥1,950 ¥1,920.1 ¥1,913.5 Quote	Min.: 1 Mult.: 1		115 VAC	40 V CT/20 V	1.2 VA	30 mA/60 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.15 mm	PC
Power Transformers - Board Mount PoE EP7 Core SPOE3-0508 Bel Signal Transformer 1: ¥697.6 1,913In Stock	Mfr. Part # SPOE3-0508 Mouser Part # 530-SPOE3-0508	Bel Signal Transformer	Power Transformers - Board Mount PoE EP7 Core Learn More about Bel Signal Transformer s spoe smt transformers	Datasheet	1,913In Stock	Cut Tape ¥697.6 ¥598 ¥513.2 ¥496.6 Reel ¥418.6 View ¥438.5 ¥415.3 ¥408.6 ¥406.9	Min.: 1 Mult.: 1 : 350	POE - Power Over Ethernet Transformers											SPOE