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ST Series Power Transformers - Board Mount

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) 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 ST-2 ST-2-120 Bel Signal Transformer 1: Rp215.015 196In Stock	Mfr. Part No. ST-2-120 Mouser Part No 530-ST-2-120	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	196In Stock	Rp215.015 Rp182.543 Rp175.204 Rp169.701 View Rp138.329 Rp137.778 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	120 V CT/60 V	1.1 VA	10 mA/20 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 ST-6-36 Bel Signal Transformer 1: Rp407.465 95In Stock	Mfr. Part No. ST-6-36 Mouser Part No 530-ST-6-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	95In Stock	Rp407.465 Rp367.287 Rp351.876 Rp310.598 View Rp304.177 Rp288.950 Rp279.960 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	36 V CT/18 V	20 VA	550 mA/1.1 A	Through Hole	Single Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-7 ST-7-24 Bel Signal Transformer 1: Rp467.089 78In Stock	Mfr. Part No. ST-7-24 Mouser Part No 530-ST-7-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-7 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	78In Stock	Rp467.089 Rp421.224 Rp399.943 Rp363.434 View Rp327.293 Rp321.605 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	24 V CT/12 V	36 VA	1.5 A/3 A	Through Hole	Single Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-20 Bel Signal Transformer 1: Rp217.950 58In Stock	Mfr. Part No. ST-3-20 Mouser Part No 530-ST-3-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	58In Stock	Rp217.950 Rp185.295 Rp177.773 Rp172.269 View Rp145.484 Rp144.566 Rp142.732 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	20 V CT/10 V	2.4 VA	120 mA/240 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 ST-5-12 Bel Signal Transformer 1: Rp341.052 37In Stock	Mfr. Part No. ST-5-12 Mouser Part No 530-ST-5-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	37In Stock	Rp341.052 Rp301.975 Rp256.661 Rp245.103 View Rp237.397 Rp234.462 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	12.6 V CT/6.3 V	12 VA	1 A/2 A	Through Hole	Single Primary Winding	Dual Secondary Winding	48.4 mm	40.4 mm	36.9 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-7 ST-7-28 Bel Signal Transformer 1: Rp490.756 38In Stock	Mfr. Part No. ST-7-28 Mouser Part No 530-ST-7-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-7 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	38In Stock	Rp490.756 Rp428.012 Rp414.436 Rp358.297 View Rp340.869 Rp332.613 Rp325.825 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	28 V CT/14 V	36 VA	1.3 A/2.6 A	Through Hole	Single Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	40.4 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 ST-5-56 Bel Signal Transformer 1: Rp439.020 75In Stock	Mfr. Part No. ST-5-56 Mouser Part No 530-ST-5-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	75In Stock	Rp439.020 Rp395.907 Rp337.933 Rp326.742 View Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	56 V CT/28 V	12 VA	220 mA/440 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	48.4 mm	40.4 mm	36.9 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 ST-5-36 Bel Signal Transformer 1: Rp288.766 97In Stock	Mfr. Part No. ST-5-36 Mouser Part No 530-ST-5-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-5 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	97In Stock	Rp288.766 Rp252.624 Rp224.739 Rp216.299 View Rp209.695 Rp197.770 Rp187.129 Rp183.643 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	36 V CT/18 V	12 VA	350 mA/700 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	48.4 mm	40.4 mm	36.9 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-48 Bel Signal Transformer 1: Rp323.990 98In Stock	Mfr. Part No. ST-3-48 Mouser Part No 530-ST-3-48	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	98In Stock	Rp323.990 Rp272.622 Rp261.614 Rp253.175 View Rp220.519 Rp220.335	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	48 V CT/24 V	2.4 VA	50 mA/100 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-12 Bel Signal Transformer 1: Rp240.149 250In Stock	Mfr. Part No. ST-3-12 Mouser Part No 530-ST-3-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	250In Stock	Rp240.149 Rp220.152 Rp206.943 Rp199.788 View Rp199.421 Rp177.406 Rp174.287 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	12.6 V CT/6.3 V	2.4 VA	200 mA/400 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 ST-6-16 Bel Signal Transformer 1: Rp413.335 88In Stock	Mfr. Part No. ST-6-16 Mouser Part No 530-ST-6-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	88In Stock	Rp413.335 Rp372.240 Rp356.830 Rp345.455 View Rp318.670 Rp290.968 Rp280.510 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	16 V CT/8 V	20 VA	1.25 A/2.5 A	Through Hole	Single Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 ST-6-20 Bel Signal Transformer 1: Rp391.137 153In Stock	Mfr. Part No. ST-6-20 Mouser Part No 530-ST-6-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-6 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	153In Stock	Rp391.137 Rp352.427 Rp337.566 Rp301.425 View Rp293.353 Rp282.895 Rp272.438 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	20 V CT/10 V	20 VA	1 A/2 A	Through Hole	Single Primary Winding	Dual Secondary Winding	57.2 mm	47.8 mm	36.9 mm	ST
Power Transformers - Board Mount HF POE SMT XFMR EP10 8PIN 7W ST-2-10 Bel Signal Transformer 1: Rp320.872 58In Stock	Mfr. Part No. ST-2-10 Mouser Part No 530-ST-2-10	Bel Signal Transformer	Power Transformers - Board Mount HF POE SMT XFMR EP10 8PIN 7W Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	58In Stock	Rp320.872 Rp293.536 Rp288.216 Rp254.276 Rp219.969	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	10 V CT/5 V	1.1 VA	110 mA/220 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 ST-2-12 Bel Signal Transformer 1: Rp246.754 42In Stock	Mfr. Part No. ST-2-12 Mouser Part No 530-ST-2-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	42In Stock	Rp246.754 Rp239.232 Rp229.508 Rp222.354 View Rp207.677 Rp198.320 Rp192.816 Rp168.600 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	12.6 V CT/6.3 V	1.1 VA	90 mA/180 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 ST-2-24 Bel Signal Transformer 1: Rp343.437 18In Stock	Mfr. Part No. ST-2-24 Mouser Part No 530-ST-2-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	18In Stock	Rp343.437 Rp339.584 Rp224.555 Rp221.987 View Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	24 V CT/12 V	1.1 VA	45 mA/90 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 ST-2-28 Bel Signal Transformer 1: Rp209.144 183In Stock	Mfr. Part No. ST-2-28 Mouser Part No 530-ST-2-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	183In Stock	Rp209.144 Rp188.780 Rp181.075 Rp172.452 View Rp166.949 Rp144.383 Rp140.530 Rp137.228 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	28 V CT/14 V	1.1 VA	40 mA/80 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	24.6 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 ST-3-10 Bel Signal Transformer 1: Rp235.379 92In Stock	Mfr. Part No. ST-3-10 Mouser Part No 530-ST-3-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-2 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	92In Stock	Rp235.379 Rp210.062 Rp201.623 Rp195.201 View Rp188.964 Rp180.341 Rp156.308 Rp153.006 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	10 V CT/5 V	2.4 VA	250 mA/500 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-16 Bel Signal Transformer 1: Rp188.964 173In Stock	Mfr. Part No. ST-3-16 Mouser Part No 530-ST-3-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	173In Stock	Rp188.964 Rp173.186 Rp162.912 Rp157.042 View Rp152.088 Rp147.318 Rp135.027 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	16 V CT/8 V	2.4 VA	150 mA/300 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-28 Bel Signal Transformer 1: Rp201.256 66In Stock	Mfr. Part No. ST-3-28 Mouser Part No 530-ST-3-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	66In Stock	Rp201.256 Rp173.003 Rp156.308 Rp153.006 View Rp147.318 Rp141.264 Rp140.530 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	28 V CT/14 V	2.4 VA	85 mA/170 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-36 Bel Signal Transformer 1: Rp212.080 28In Stock 200Expected 20/11/2026	Mfr. Part No. ST-3-36 Mouser Part No 530-ST-3-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	28In Stock 200Expected 20/11/2026	Rp212.080 Rp188.413 Rp180.708 Rp175.021 View Rp169.334 Rp148.970 Rp144.750 Rp141.264	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	36 V CT/18 V	2.4 VA	65 mA/130 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 ST-3-56 Bel Signal Transformer 1: Rp214.832 13In Stock	Mfr. Part No. ST-3-56 Mouser Part No 530-ST-3-56	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-3 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	13In Stock	Rp214.832 Rp199.604 Rp195.752 Rp176.672 Rp149.887	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	56 V CT/28 V	2.4 VA	45 mA/90 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	34.9 mm	28.6 mm	30.8 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 ST-4-16 Bel Signal Transformer 1: Rp248.405 44In Stock 200On Order	Mfr. Part No. ST-4-16 Mouser Part No 530-ST-4-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	44In Stock 200On Order	Rp248.405 Rp223.821 Rp214.648 Rp182.359 View Rp177.039 Rp167.316 Rp158.326 Rp154.106 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	16 V CT/8 V	6 VA	400 mA/800 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 ST-4-20 Bel Signal Transformer 1: Rp229.508 116In Stock	Mfr. Part No. ST-4-20 Mouser Part No 530-ST-4-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	116In Stock	Rp229.508 Rp210.429 Rp201.439 Rp201.256 View Rp171.902 Rp162.362 Rp158.143 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	20 V CT/10 V	6 VA	300 mA/600 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 ST-4-24 Bel Signal Transformer 1: Rp210.612 120In Stock 500Expected 20/11/2026	Mfr. Part No. ST-4-24 Mouser Part No 530-ST-4-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	120In Stock 500Expected 20/11/2026	Rp210.612 Rp193.183 Rp181.625 Rp174.837 View Rp169.517 Rp164.747 Rp164.013 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	24 V CT/12 V	6 VA	250 mA/500 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	ST
Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 ST-4-28 Bel Signal Transformer 1: Rp244.552 77In Stock	Mfr. Part No. ST-4-28 Mouser Part No 530-ST-4-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER SPLIT-TRAN ST-4 Learn More about Bel Signal Transformer signal transformer st transformers	Datasheet	77In Stock	Rp244.552 Rp220.519 Rp211.529 Rp204.741 View Rp198.320 Rp190.065 Rp184.194 Rp159.243 Quote	Min.: 1 Mult.: 1	Class 2 Transformers	115 VAC	28 V CT/14 V	6 VA	200 mA/400 mA	Through Hole	Single Primary Winding	Dual Secondary Winding	41.3 mm	33.3 mm	33.3 mm	ST