Power Transformers - Board Mount

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DST Class 2 Transformers

Signal Transformer / Bel DST Class 2 Transformers provide superior isolation and low capacitive coupling. The Split Bobbin-Low Power transformers feature a power rating of 1.1VA to 36VA and are available in 60 standard configurations. Signal Transformer / Bel DST Transformers are recognized to UL 506 and meet the specifications for UL 1446 (E66312).

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SEK) 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-4 DST-4-12 Bel Signal Transformer 1: 122,54 kr 363In Stock	Mfr. Part No. DST-4-12 Mouser Part No 530-DST-4-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	363In Stock	122,54 kr 114,96 kr 107,70 kr 103,64 kr View 96,71 kr 93,42 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	6 VA	500 mA/1 A	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-4-16 Bel Signal Transformer 1: 129,68 kr 309In Stock	Mfr. Part No. DST-4-16 Mouser Part No 530-DST-4-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	309In Stock	129,68 kr 118,25 kr 111,77 kr 107,70 kr View 104,30 kr 100,01 kr 98,69 kr 93,31 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	16 V CT/8 V	6 VA	400 mA/800 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-4-24 Bel Signal Transformer 1: 153,97 kr 171In Stock	Mfr. Part No. DST-4-24 Mouser Part No 530-DST-4-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	171In Stock	153,97 kr 144,19 kr 134,85 kr 130,01 kr View 119,90 kr 107,70 kr	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	6 VA	250 mA/500 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-5-16 Bel Signal Transformer 1: 138,69 kr 372In Stock	Mfr. Part No. DST-5-16 Mouser Part No 530-DST-5-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	372In Stock	138,69 kr 130,45 kr 121,88 kr 117,26 kr View 113,09 kr 104,95 kr 101,55 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	16 V CT/8 V	12 VA	800 mA/1.6 A	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-7 DST-7-28 Bel Signal Transformer 1: 265,52 kr 96In Stock	Mfr. Part No. DST-7-28 Mouser Part No 530-DST-7-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	96In Stock	265,52 kr 236,50 kr 212,99 kr 205,51 kr View 195,40 kr 191,12 kr 190,24 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	36 VA	1.3 A/2.6 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-5 DST-5-20 Bel Signal Transformer 1: 144,30 kr 143In Stock	Mfr. Part No. DST-5-20 Mouser Part No 530-DST-5-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	143In Stock	144,30 kr 129,57 kr 120,01 kr 119,13 kr View 114,85 kr 104,08 kr 102,32 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	20 V CT/10 V	12 VA	600 mA/1.2 A	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-6-36 Bel Signal Transformer 1: 204,63 kr 154In Stock	Mfr. Part No. DST-6-36 Mouser Part No 530-DST-6-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	154In Stock	204,63 kr 188,04 kr 181,99 kr 172,54 kr View 164,08 kr 155,95 kr 152,32 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	20 VA	550 mA/1.1 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-6-12 Bel Signal Transformer 1: 214,31 kr 47In Stock	Mfr. Part No. DST-6-12 Mouser Part No 530-DST-6-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	47In Stock	214,31 kr 193,09 kr 171,22 kr 168,92 kr View 163,31 kr 158,15 kr 155,07 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	20 VA	1.6 A/3.2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	DST
Power Transformers - Board Mount Radial Inductor with Leads,8200 H, 0.13A,Q>20 DST-2-10 Bel Signal Transformer 1: 127,37 kr 107In Stock	Mfr. Part No. DST-2-10 Mouser Part No 530-DST-2-10	Bel Signal Transformer	Power Transformers - Board Mount Radial Inductor with Leads,8200 H, 0.13A,Q>20 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	107In Stock	127,37 kr 113,31 kr 108,80 kr 96,71 kr View 86,16 kr 86,05 kr 84,84 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	10 V CT/5 V	1.1 VA	110 mA/220 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-3 DST-4-10 Bel Signal Transformer 1: 138,91 kr 99In Stock	Mfr. Part No. DST-4-10 Mouser Part No 530-DST-4-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	99In Stock	138,91 kr 124,63 kr 119,68 kr 108,47 kr View 96,82 kr 95,17 kr 94,51 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	10 V CT/5 V	6 VA	600 mA/1.2 A	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-3 DST-3-48 Bel Signal Transformer 1: 154,63 kr 111In Stock	Mfr. Part No. DST-3-48 Mouser Part No 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	111In Stock	154,63 kr 130,12 kr 124,74 kr 118,58 kr 100,78 kr	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 TRANSFORMER SPLIT-TRAN DST-2 DST-2-56 Bel Signal Transformer 1: 128,91 kr 34In Stock	Mfr. Part No. DST-2-56 Mouser Part No 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	128,91 kr 109,68 kr 105,17 kr 100,56 kr 85,39 kr	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 TRANSFORMER SPLIT-TRAN DST-7 DST-7-12 Bel Signal Transformer 1: 265,52 kr 37In Stock	Mfr. Part No. DST-7-12 Mouser Part No 530-DST-7-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	37In Stock	265,52 kr 239,25 kr 203,32 kr 198,92 kr View 198,81 kr 197,60 kr 196,83 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	36 VA	2.85 A/5.7 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-5 DST-5-24 Bel Signal Transformer 1: 141,33 kr 246In Stock	Mfr. Part No. DST-5-24 Mouser Part No 530-DST-5-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	246In Stock	141,33 kr 132,43 kr 123,86 kr 119,79 kr View 114,96 kr 114,19 kr 103,42 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	12 VA	500 mA/1 A	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-6-16 Bel Signal Transformer 1: 221,01 kr 142In Stock	Mfr. Part No. DST-6-16 Mouser Part No 530-DST-6-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	142In Stock	221,01 kr 198,92 kr 196,83 kr 190,57 kr View 184,63 kr 155,18 kr 151,66 kr Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	16 V CT/8 V	20 VA	1.25 A/2.5 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-2 DST-2-12 Bel Signal Transformer 1: 127,48 kr 72In Stock	Mfr. Part No. DST-2-12 Mouser Part No 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	127,48 kr 115,07 kr 110,34 kr 98,58 kr View 95,72 kr 89,57 kr 88,14 kr 86,38 kr 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: 127,48 kr 77In Stock	Mfr. Part No. DST-2-120 Mouser Part No 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	127,48 kr 115,07 kr 110,34 kr 98,58 kr View 93,63 kr 89,57 kr 88,14 kr 86,38 kr 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: 134,74 kr 28In Stock 100On Order	Mfr. Part No. DST-2-16 Mouser Part No 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	134,74 kr 121,88 kr 116,93 kr 111,11 kr View 107,48 kr 102,32 kr 89,57 kr 88,03 kr 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: 123,20 kr 50In Stock 200Expected 2026-10-30	Mfr. Part No. DST-2-24 Mouser Part No 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 2026-10-30	123,20 kr 112,98 kr 106,16 kr 102,32 kr View 99,13 kr 94,29 kr 91,77 kr 90,34 kr	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: 137,05 kr 35In Stock	Mfr. Part No. DST-2-28 Mouser Part No 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	137,05 kr 126,06 kr 122,21 kr 110,45 kr 93,85 kr	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: 122,65 kr 50In Stock	Mfr. Part No. DST-3-10 Mouser Part No 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	122,65 kr 109,68 kr 105,06 kr 101,88 kr View 89,35 kr 85,39 kr 84,07 kr 82,43 kr 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: 135,62 kr 15In Stock	Mfr. Part No. DST-3-12 Mouser Part No 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	15In Stock	135,62 kr 122,76 kr 117,81 kr 103,09 kr View 102,98 kr 92,21 kr 90,78 kr 90,23 kr 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-3-20 Bel Signal Transformer 1: 122,54 kr 97In Stock	Mfr. Part No. DST-3-20 Mouser Part No 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	122,54 kr 112,32 kr 105,50 kr 101,77 kr View 98,58 kr 89,24 kr 86,71 kr 84,73 kr	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: 132,87 kr 22In Stock 100Expected 2026-10-30	Mfr. Part No. DST-3-28 Mouser Part No 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 2026-10-30	132,87 kr 116,38 kr 114,08 kr 104,30 kr 88,47 kr	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: 124,19 kr 80In Stock	Mfr. Part No. DST-3-36 Mouser Part No 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	124,19 kr 117,70 kr 98,47 kr 92,87 kr View 90,45 kr 89,24 kr 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