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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-3 DST-3-36 Bel Signal Transformer 1: ¥2,182.6 80In Stock	Mfr. Part # DST-3-36 Mouser Part # 530-DST-3-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	80In Stock	¥2,182.6 ¥2,067.9 ¥1,730.8 ¥1,632.8 View ¥1,589.6 ¥1,568 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	2.4 VA	65 mA/130 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 DST-4-120 Bel Signal Transformer 1: ¥2,486.5 35In Stock	Mfr. Part # DST-4-120 Mouser Part # 530-DST-4-120	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	35In Stock	¥2,486.5 ¥2,237.4 ¥2,192.5 ¥1,921.8 View ¥1,825.4 ¥1,754 ¥1,720.8 ¥1,699.2	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	120 V CT/60 V	6 VA	50 mA/100 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 DST-4-20 Bel Signal Transformer 1: ¥2,871.9 36In Stock	Mfr. Part # DST-4-20 Mouser Part # 530-DST-4-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	36In Stock	¥2,871.9 ¥2,687.5 ¥2,582.9 ¥2,205.8 View ¥2,185.9 ¥1,943.4 ¥1,941.7 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	20 V CT/10 V	6 VA	300 mA/600 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 DST-4-28 Bel Signal Transformer 1: ¥2,235.7 122In Stock	Mfr. Part # DST-4-28 Mouser Part # 530-DST-4-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	122In Stock	¥2,235.7 ¥2,049.7 ¥1,951.7 ¥1,950 View ¥1,659.3 ¥1,614.5 ¥1,591.2 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	6 VA	200 mA/400 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 DST-4-36 Bel Signal Transformer 1: ¥2,003.2 106In Stock	Mfr. Part # DST-4-36 Mouser Part # 530-DST-4-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	106In Stock	¥2,003.2 ¥1,857 ¥1,773.9 ¥1,740.7 View ¥1,584.6 ¥1,501.5	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	6 VA	170 mA/340 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 DST-4-48 Bel Signal Transformer 1: ¥2,461.6 100In Stock 100Expected 10/30/2026	Mfr. Part # DST-4-48 Mouser Part # 530-DST-4-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	100In Stock 100Expected 10/30/2026	¥2,461.6 ¥2,257.3 ¥2,164.3 ¥2,094.5 View ¥2,029.7 ¥1,762.3 ¥1,714.2 ¥1,687.6 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	48 V CT/24 V	6 VA	125 mA/250 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 DST-5-36 Bel Signal Transformer 1: ¥2,548 77In Stock	Mfr. Part # DST-5-36 Mouser Part # 530-DST-5-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	77In Stock	¥2,548 ¥2,380.2 ¥2,224.1 ¥2,161 View ¥1,918.5 ¥1,867 ¥1,853.7 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	12 VA	350 mA/700 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	48.4 mm	40.4 mm	36.9 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 DST-5-48 Bel Signal Transformer 1: ¥3,395.1 33In Stock	Mfr. Part # DST-5-48 Mouser Part # 530-DST-5-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	33In Stock	¥3,395.1 ¥2,851.9 ¥2,421.7 ¥2,283.9 View ¥2,247.3 ¥2,234 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	48 V CT/24 V	12 VA	250 mA/500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	48.4 mm	40.4 mm	36.9 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 DST-6-24 Bel Signal Transformer 1: ¥4,032.9 53In Stock	Mfr. Part # DST-6-24 Mouser Part # 530-DST-6-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	53In Stock	¥4,032.9 ¥3,621 ¥3,468.2 ¥3,358.5 View ¥3,250.6 ¥3,114.4 ¥2,772.2 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	20 VA	800 mA/1.6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 DST-6-28 Bel Signal Transformer 1: ¥3,242.3 29In Stock	Mfr. Part # DST-6-28 Mouser Part # 530-DST-6-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	29In Stock	¥3,242.3 ¥3,004.7 ¥2,908.4 ¥2,812.1 View ¥2,687.5 ¥2,577.9 ¥2,526.4 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	20 VA	700 mA/1.4 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 DST-7-10 Bel Signal Transformer 1: ¥4,704 34In Stock	Mfr. Part # DST-7-10 Mouser Part # 530-DST-7-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	34In Stock	¥4,704 ¥4,542.8 ¥4,051.2 ¥3,639.3 View ¥3,498.1 ¥3,421.7 ¥3,406.7 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	10 V CT/5 V	36 VA	3.6 A/7.2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 DST-7-120 Bel Signal Transformer 1: ¥4,941.5 16In Stock	Mfr. Part # DST-7-120 Mouser Part # 530-DST-7-120	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	16In Stock	¥4,941.5 ¥4,808.6 ¥3,630.9 ¥3,547.9 View ¥3,529.6 ¥3,511.4 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	120 V CT/60 V	36 VA	300 mA/600 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 DST-7-24 Bel Signal Transformer 1: ¥3,974.8 49In Stock	Mfr. Part # DST-7-24 Mouser Part # 530-DST-7-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	49In Stock	¥3,974.8 ¥3,905 ¥3,903.4 ¥3,893.4 View ¥3,833.6 ¥3,190.8 ¥3,174.2 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	36 VA	1.5 A/3 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 DST-7-48 Bel Signal Transformer 1: ¥4,765.4 13In Stock	Mfr. Part # DST-7-48 Mouser Part # 530-DST-7-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	13In Stock	¥4,765.4 ¥4,604.3 ¥4,021.3 ¥3,704 View ¥3,511.4 ¥3,431.6 ¥3,415 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	48 V CT/24 V	36 VA	750 mA/1.5 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	DST
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-14 IF-14-230 Bel Signal Transformer 1: ¥8,004.4 7In Stock	Mfr. Part # IF-14-230 Mouser Part # 530-IF-14-230	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-14 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	7In Stock	¥8,004.4 ¥7,173.9 ¥5,875 ¥5,772 View ¥5,735.4 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	230 V CT/115 V	14 VA	60 mA/120 mA	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-18 IF-18-12 Bel Signal Transformer 1: ¥7,954.5 16In Stock	Mfr. Part # IF-18-12 Mouser Part # 530-IF-18-12	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	16In Stock	¥7,954.5 ¥7,129 ¥5,818.5 ¥5,718.8 View ¥5,692.2 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	12 V CT/6 V	18 VA	1.5 A/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-18 IF-18-230 Bel Signal Transformer 1: ¥7,577.5 11In Stock	Mfr. Part # IF-18-230 Mouser Part # 530-IF-18-230	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	11In Stock	¥7,577.5 ¥7,461.2 ¥5,943.1 ¥5,909.8 View ¥5,690.6 ¥5,562.7 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	230 V CT/115 V	18 VA	80 mA/160 mA	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-2 IF-2-16 Bel Signal Transformer 1: ¥5,210.6 20In Stock	Mfr. Part # IF-2-16 Mouser Part # 530-IF-2-16	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-2 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	20In Stock	¥5,210.6 ¥4,526.2 ¥4,111 ¥3,959.8 View ¥3,866.8 ¥3,800.4 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	16 V CT/8 V	2 VA	125 mA/250 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	53 mm	44 mm	17.6 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-2 IF-30-10 Bel Signal Transformer 1: ¥11,029 37In Stock	Mfr. Part # IF-30-10 Mouser Part # 530-IF-30-10	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-2 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	37In Stock	¥11,029 ¥7,899.7 ¥6,760.3 ¥6,722.1	Min.: 1 Mult.: 1		115 VAC, 230 VAC	10 V CT/5 V	30 VA	3 A/6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	68 mm	57.5 mm	35.3 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-4 IF-4-230 Bel Signal Transformer 1: ¥5,996.2 4In Stock	Mfr. Part # IF-4-230 Mouser Part # 530-IF-4-230	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	4In Stock	¥5,996.2 ¥4,866.7 ¥4,549.5 ¥4,479.7 ¥4,448.2	Min.: 1 Mult.: 1		115 VAC, 230 VAC	230 V CT/115 V	4 VA	18 mA/36 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-6 IF-6-24 Bel Signal Transformer 1: ¥4,474.7 37In Stock	Mfr. Part # IF-6-24 Mouser Part # 530-IF-6-24	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-6 Learn More about Bel Signal Transformer bel if international flathead transformers	Datasheet	37In Stock	¥4,474.7 ¥4,184.1 ¥4,086.1 ¥4,084.4 View ¥3,976.4 ¥3,916.6 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	24 V CT/12 V	6 VA	250 mA/500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	53 mm	44 mm	22.6 mm
Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-6 LP-10-1200 Bel Signal Transformer 1: ¥4,310.3 18In Stock 50Expected 1/29/2027	Mfr. Part # LP-10-1200 Mouser Part # 530-LP-10-1200	Bel Signal Transformer	Power Transformers - Board Mount TRANS INTL FLAT HEAD IF-6 Learn More about Bel Signal Transformer signal transformer lp transformers	Datasheet	18In Stock 50Expected 1/29/2027	¥4,310.3 ¥3,805.4 ¥3,556.2 ¥3,217.4 Quote Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	10 V CT/5 V	12 VA	1.2 A/2.4 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	63.5 mm	50.8 mm	27.1 mm	LP
Power Transformers - Board Mount TRANS FLAT HEAD LP-24 LP-10-250 Bel Signal Transformer 1: ¥3,574.5 8In Stock	Mfr. Part # LP-10-250 Mouser Part # 530-LP-10-250	Bel Signal Transformer	Power Transformers - Board Mount TRANS FLAT HEAD LP-24 Learn More about Bel Signal Transformer signal transformer lp transformers	Datasheet	8In Stock	¥3,574.5 ¥3,220.7 ¥3,087.8 ¥2,989.8 View ¥2,891.8 ¥2,518.1 ¥2,471.6 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	10 V CT/5 V	2 VA	250 mA/500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	47.5 mm	39.6 mm	16.5 mm	LP
Power Transformers - Board Mount TRANS FLAT HEAD LP-24 LP-12-200 Bel Signal Transformer 1: ¥3,552.9 34In Stock	Mfr. Part # LP-12-200 Mouser Part # 530-LP-12-200	Bel Signal Transformer	Power Transformers - Board Mount TRANS FLAT HEAD LP-24 Learn More about Bel Signal Transformer signal transformer lp transformers	Datasheet	34In Stock	¥3,552.9 ¥3,200.7 ¥3,067.9 ¥2,971.5 View ¥2,875.2 ¥2,737.3 ¥2,423.4	Min.: 1 Mult.: 1		115 VAC, 230 VAC	12.6 V CT/6.3 V	2 VA	200 mA/400 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	47.5 mm	39.6 mm	16.5 mm	LP
Power Transformers - Board Mount TRANS FLAT HEAD LP-02 LP-12-3800 Bel Signal Transformer 1: ¥7,379.8 14In Stock	Mfr. Part # LP-12-3800 Mouser Part # 530-LP-12-3800	Bel Signal Transformer	Power Transformers - Board Mount TRANS FLAT HEAD LP-02 Learn More about Bel Signal Transformer signal transformer lp transformers	Datasheet	14In Stock	¥7,379.8 ¥6,858.3 ¥4,659.1 ¥4,537.9 ¥4,527.9	Min.: 1 Mult.: 1		115 VAC, 230 VAC	12.6 V CT/6.3 V	48 VA	3.8 A/7.6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	79.2 mm	63.5 mm	34.9 mm	LP