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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 POWER DPC-3 DPC-28-800 Bel Signal Transformer 1: ¥5,026.2 50In Stock	Mfr. Part # DPC-28-800 Mouser Part # 530-DPC-28-800	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER DPC-3 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	50In Stock	¥5,026.2 ¥4,524.6 ¥4,336.9 ¥4,197.3 View ¥4,064.5 ¥3,644.2 ¥3,634.3 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	28 V CT/14 V	24 VA	800 mA/1.6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	57.2 mm	34.93 mm	PC
Power Transformers - Board Mount TRANSFORMER POWER DPC-6 DPC-34-125 Bel Signal Transformer 1: ¥2,900.1 8In Stock 100Expected 1/1/2027	Mfr. Part # DPC-34-125 Mouser Part # 530-DPC-34-125	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER DPC-6 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	8In Stock 100Expected 1/1/2027	¥2,900.1 ¥2,704.1 ¥2,440 ¥2,295.5 View ¥2,182.6 ¥2,131.1 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	34 V CT/17 V	4.4 VA	125 mA/250 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	31.8 mm	34.92 mm	PC
Power Transformers - Board Mount TRANSFORMER POWER DPC-5 DPC-34-35 Bel Signal Transformer 1: ¥2,139.4 88In Stock	Mfr. Part # DPC-34-35 Mouser Part # 530-DPC-34-35	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER POWER DPC-5 Learn More about Bel Signal Transformer signal transformer pc mount transformers	Datasheet	88In Stock	¥2,139.4 ¥1,911.8 ¥1,833.7 ¥1,775.6 View ¥1,719.1 ¥1,499.9 ¥1,473.3 ¥1,445.1 Quote	Min.: 1 Mult.: 1		115 VAC, 230 VAC	34 V CT/17 V	1.2 VA	35 mA/70 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.15 mm	PC
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-12 Bel Signal Transformer 1: ¥2,240.7 72In Stock	Mfr. Part # DST-2-12 Mouser Part # 530-DST-2-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	72In Stock	¥2,240.7 ¥2,021.4 ¥1,938.4 ¥1,732.4 View ¥1,682.6 ¥1,574.6 ¥1,548.1 ¥1,518.2 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	1.1 VA	90 mA/180 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-120 Bel Signal Transformer 1: ¥2,240.7 77In Stock	Mfr. Part # DST-2-120 Mouser Part # 530-DST-2-120	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	77In Stock	¥2,240.7 ¥2,021.4 ¥1,938.4 ¥1,732.4 View ¥1,646.1 ¥1,574.6 ¥1,548.1 ¥1,518.2 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	120 V CT/60 V	1.1 VA	10 mA/20 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-16 Bel Signal Transformer 1: ¥2,366.9 28In Stock 100On Order	Mfr. Part # DST-2-16 Mouser Part # 530-DST-2-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	28In Stock 100On Order	¥2,366.9 ¥2,141 ¥2,054.7 ¥1,953.3 View ¥1,888.6 ¥1,798.9 ¥1,574.6 ¥1,546.4 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	16 V CT/8 V	1.1 VA	70 mA/140 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-24 Bel Signal Transformer 1: ¥2,164.3 50In Stock 200Expected 10/30/2026	Mfr. Part # DST-2-24 Mouser Part # 530-DST-2-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	50In Stock 200Expected 10/30/2026	¥2,164.3 ¥1,984.9 ¥1,865.3 ¥1,798.9 View ¥1,742.4 ¥1,657.7 ¥1,612.8 ¥1,587.9	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	1.1 VA	45 mA/90 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-2-28 Bel Signal Transformer 1: ¥2,408.5 35In Stock	Mfr. Part # DST-2-28 Mouser Part # 530-DST-2-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	35In Stock	¥2,408.5 ¥2,215.8 ¥2,147.7 ¥1,941.7 ¥1,649.4	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	1.1 VA	40 mA/80 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 DST-3-10 Bel Signal Transformer 1: ¥2,156 50In Stock	Mfr. Part # DST-3-10 Mouser Part # 530-DST-3-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	50In Stock	¥2,156 ¥1,926.8 ¥1,847 ¥1,790.6 View ¥1,569.6 ¥1,501.5 ¥1,476.6 ¥1,448.4 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	10 V CT/5 V	2.4 VA	250 mA/500 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-3 DST-3-12 Bel Signal Transformer 1: ¥2,383.5 5In Stock	Mfr. Part # DST-3-12 Mouser Part # 530-DST-3-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	5In Stock	¥2,383.5 ¥2,157.6 ¥2,069.6 ¥1,812.2 View ¥1,810.5 ¥1,619.5 ¥1,596.2 ¥1,586.3 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	2.4 VA	20 mA/40 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-3 DST-3-16 Bel Signal Transformer 1: ¥2,735.7 38In Stock 200Expected 11/20/2026	Mfr. Part # DST-3-16 Mouser Part # 530-DST-3-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	38In Stock 200Expected 11/20/2026	¥2,735.7 ¥2,396.8 ¥2,298.8 ¥2,227.4 View ¥2,154.3 ¥2,056.3 ¥1,999.8 ¥1,938.4 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	16 V CT/8 V	2.4 VA	150 mA/300 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-3 DST-3-20 Bel Signal Transformer 1: ¥2,152.7 97In Stock	Mfr. Part # DST-3-20 Mouser Part # 530-DST-3-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	97In Stock	¥2,152.7 ¥1,973.3 ¥1,853.7 ¥1,788.9 View ¥1,732.4 ¥1,568 ¥1,523.1 ¥1,489.9 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	20 V CT/10 V	2.4 VA	120 mA/240 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-3 DST-3-28 Bel Signal Transformer 1: ¥2,335.4 22In Stock 100Expected 10/30/2026	Mfr. Part # DST-3-28 Mouser Part # 530-DST-3-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	22In Stock 100Expected 10/30/2026	¥2,335.4 ¥2,044.7 ¥2,004.8 ¥1,832.1 ¥1,554.7	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	2.4 VA	85 mA/170 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-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 105In 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	105In 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