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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Primary Voltage Rating
Secondary Voltage Rating
Power Rating
Secondary Current Rating
Mounting Style
Primary Winding
Secondary Winding
Length
Width
Height
Series
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
333In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
294In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
184In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
162In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
114In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
118In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
165In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
34In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
36In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
138In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
37In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
108In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
99In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
123In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
105In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
186In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
1,066In Stock
400Expected 21/04/2026
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
364In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
149In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
144In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
73In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
17In Stock
100Expected 14/05/2026
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
100In Stock
200Expected 21/08/2026
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
46In Stock
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
Bel Signal Transformer Power Transformers - Board Mount 50\60 Hz, Laminated Transformer
Datasheet
56In Stock
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