Power Transformers - Board Mount

.hide-partial { max-height: none; } .show-more { display: none; }

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).

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 60

Applied Filters:

Secondary Voltage Rating

Power Rating

Secondary Current Rating

Length

Width

Height

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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-4-20 Bel Signal Transformer 1: 14,84 € 36In Stock	Mfr. Part No. DST-4-20 Mouser Part No 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	14,84 € 13,63 € 13,28 € 11,39 € View 11,20 € 10,55 € 10,54 €	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: 11,58 € 122In Stock	Mfr. Part No. DST-4-28 Mouser Part No 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	11,58 € 10,61 € 10,11 € 10,10 € View 8,59 € 8,36 € 8,24 € 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: 10,84 € 116In Stock	Mfr. Part No. DST-4-36 Mouser Part No 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	116In Stock	10,84 € 9,85 € 9,42 € 9,20 € View 8,17 € Quote	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-4-56 Bel Signal Transformer 1: 16,25 € 42In Stock	Mfr. Part No. DST-4-56 Mouser Part No 530-DST-4-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-4 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	42In Stock	16,25 € 15,94 € 14,90 € 12,19 € View 11,50 € 11,49 €	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	56 V CT/28 V	6 VA	110 mA/220 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: 13,41 € 77In Stock	Mfr. Part No. DST-5-36 Mouser Part No 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	13,41 € 12,26 € 11,51 € 11,15 € View 10,26 € 9,95 € 9,91 € 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: 17,34 € 44In Stock	Mfr. Part No. DST-5-48 Mouser Part No 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	44In Stock	17,34 € 14,77 € 12,55 € 12,07 € View 12,04 € 11,88 € 11,76 €	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-5 DST-5-56 Bel Signal Transformer 1: 16,67 € 4In Stock	Mfr. Part No. DST-5-56 Mouser Part No 530-DST-5-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	4In Stock	16,67 € 16,12 € 13,77 € 12,07 € View 12,04 € 11,88 € 11,76 €	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	56 V CT/28 V	12 VA	220 mA/440 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: 20,44 € 53In Stock	Mfr. Part No. DST-6-24 Mouser Part No 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	20,44 € 18,21 € 17,45 € 16,89 € View 16,35 € 15,65 € 14,64 € 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: 17,17 € 29In Stock	Mfr. Part No. DST-6-28 Mouser Part No 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	17,17 € 15,83 € 15,30 € 14,78 € View 14,29 € 13,77 € 13,48 € 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: 24,36 € 34In Stock	Mfr. Part No. DST-7-10 Mouser Part No 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	24,36 € 21,23 € 20,55 € 19,07 € View 18,59 € 18,14 € 17,97 €	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: 25,21 € 16In Stock	Mfr. Part No. DST-7-120 Mouser Part No 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	25,21 € 24,07 € 19,34 € 18,90 € View 18,70 € 18,52 € 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: 21,11 € 49In Stock	Mfr. Part No. DST-7-24 Mouser Part No 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	21,11 € 19,95 € 19,94 € 19,76 € View 17,17 € 16,99 €	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: 24,67 € 14In Stock	Mfr. Part No. DST-7-48 Mouser Part No 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	14In Stock	24,67 € 21,51 € 20,83 € 20,32 € View 19,00 € 18,47 € 18,29 € 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 TRANSFORMER SPLIT-TRAN DST-2 DST-2-16 Bel Signal Transformer 1: 12,21 € 28In Stock 100Expected 09/10/2026	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 100Expected 09/10/2026	12,21 € 10,92 € 10,64 € 9,95 € View 9,62 € 9,18 € 8,46 € 8,29 € 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-3 DST-3-12 Bel Signal Transformer 1: 12,64 € 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	12,64 € 11,40 € 10,72 € 9,19 € View 9,08 € 8,75 € 8,58 € 8,48 € 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-6 DST-6-120 Bel Signal Transformer 1: 20,61 € 1In Stock	Mfr. Part No. DST-6-120 Mouser Part No 530-DST-6-120	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-6 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	1In Stock	20,61 € 19,27 € 16,07 € 15,44 € View 15,24 € 14,94 € Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	120 V CT/60 V	20 VA	160 mA/320 mA	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-3 DST-3-16 Bel Signal Transformer 1: 14,16 € 154Expected 20/11/2026	Mfr. Part No. DST-3-16 Mouser Part No 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	154Expected 20/11/2026	14,16 € 12,41 € 11,90 € 11,53 € View 11,15 € 10,65 € 10,35 € 10,04 € 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-3-24 Bel Signal Transformer 1: 10,64 € 700Expected 27/10/2026	Mfr. Part No. DST-3-24 Mouser Part No 530-DST-3-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-3 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	700Expected 27/10/2026	10,64 € 9,84 € 9,15 € 8,81 € View 8,53 € 8,08 € 7,88 € 7,70 € Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	24 V CT/12 V	2.4 VA	100 mA/200 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-4-48 Bel Signal Transformer 1: 12,51 € 200On Order	Mfr. Part No. DST-4-48 Mouser Part No 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	200On Order On Order Ship Dates Mfr. No: DST-4-48 Stock: 0 On Order: 100 Expected 27/10/2026 100 Expected 11/11/2026 Factory Lead Time: 18 Weeks	12,51 € 11,38 € 10,90 € 10,56 € View 10,23 € 8,98 € 8,73 € 8,59 €	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-5-28 Bel Signal Transformer 1: 13,09 € 889On Order	Mfr. Part No. DST-5-28 Mouser Part No 530-DST-5-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	889On Order On Order Ship Dates Mfr. No: DST-5-28 Stock: 0 On Order: 414 Expected 23/10/2026 475 Expected 20/11/2026 Factory Lead Time: 18 Weeks	13,09 € 11,87 € 11,23 € 10,83 € View 10,44 € 9,92 € 9,71 € 9,67 € Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	28 V CT/14 V	12 VA	420 mA/840 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-5-12 Bel Signal Transformer 1: 17,44 € 92Expected 18/12/2026	Mfr. Part No. DST-5-12 Mouser Part No 530-DST-5-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-5 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	92Expected 18/12/2026	17,44 € 15,71 € 15,06 € 14,59 € View 14,12 € 12,44 € 12,19 € Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	12.6 V CT/6.3 V	12 VA	1 A/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-7 DST-7-36 Bel Signal Transformer 1: 24,67 € 60Expected 15/01/2027	Mfr. Part No. DST-7-36 Mouser Part No 530-DST-7-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-7 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	60Expected 15/01/2027	24,67 € 21,51 € 19,67 € 19,20 € View 18,86 € 18,48 € 18,31 € Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	36 VA	1 A/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-2 DST-2-20 Bel Signal Transformer 200: 8,11 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DST-2-20 Mouser Part No 530-DST-2-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	8,11 € 8,02 € 7,94 €	Min.: 200 Mult.: 100	Class 2 Transformers	115 VAC, 230 VAC	20 V CT/10 V	1.1 VA	55 mA/110 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-2-36 Bel Signal Transformer 100: 8,09 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DST-2-36 Mouser Part No 530-DST-2-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	8,09 € 7,99 € 7,85 € 7,70 € Quote Quote	Min.: 100 Mult.: 100	Class 2 Transformers	115 VAC, 230 VAC	36 V CT/18 V	1.1 VA	30 mA/60 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-2-48 Bel Signal Transformer 100: 10,74 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DST-2-48 Mouser Part No 530-DST-2-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN DST-2 Learn More about Bel Signal Transformer signal transformers dst transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	10,74 €	Min.: 100 Mult.: 100	Class 2 Transformers	115 VAC, 230 VAC	48 V CT/24 V	1.1 VA	23 mA/46 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	DST