Power Transformers - Board Mount

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14A One-4-All™ International Transformers

Signal Transformer / Bel 14A (One-4-All) PC and Chassis Mount Transformers are specifically designed to satisfy North American (UL, CSA, CE) and international (VDE, IEC, CSA, CE) transformer regulatory requirements for power isolation in Medical and Dental applications. Signal Transformer / Bel 14A ensures double isolation and low leakage current, surpassing the construction requirements for patient-connected equipment per UL 544 Standard for Medical and Dental Equipment, as well as, the IEC 601-1 Standard for Medical Electrical Equipment. The transformers are dielectric strength tested to 4000V_RMS, provide a UL class F insulation system, and meet the creepage and clearance requirements for both the UL and IEC standards. The 14A series is available in nine PC mount models with 2.5VA-56VA power.

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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.	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 14A 05VA REVISED 14A-5.0R-12 Bel Signal Transformer 1: Rp246.203,32 55In Stock 200Expected 18/02/2027	Mfr. Part No. 14A-5.0R-12 Mouser Part No 530-14A-5.0R-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	55In Stock 200Expected 18/02/2027	Rp246.203,32 Rp221.986,60 Rp212.997,06 Rp203.090,22 View Rp196.669,12 Rp188.413,42 Rp168.966,66 Rp165.480,92 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	12.6 V CT/6.3 V	5 VA	400 mA/800 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	36.5 mm	34.9 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED 14A-56-10 Bel Signal Transformer 1: Rp638.440,80 14In Stock	Mfr. Part No. 14A-56-10 Mouser Part No 530-14A-56-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	14In Stock	Rp638.440,80 Rp518.091,04 Rp484.150,94 Rp479.014,06 View Rp474.244,10 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	10 V CT/5 V	56 VA	5.6 A/11.2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-24 Bel Signal Transformer 1: Rp593.676,56 22In Stock	Mfr. Part No. 14A-56-24 Mouser Part No 530-14A-56-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	22In Stock	Rp593.676,56 Rp570.744,06 Rp515.155,68 Rp496.993,14 View Rp494.424,70 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	24 V CT/12 V	56 VA	2.33 A/4.66 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC 14A-56-515 Bel Signal Transformer 1: Rp678.618,54 24In Stock	Mfr. Part No. 14A-56-515 Mouser Part No 530-14A-56-515	Bel Signal Transformer	Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	24In Stock	Rp678.618,54 Rp600.464,58 Rp578.816,30 Rp564.322,96 View Rp514.605,30 Rp496.075,84 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	5 V/15 V	56 VA	250 mA/3 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED 14A-2.5R-16 Bel Signal Transformer 1: Rp228.040,78 42In Stock	Mfr. Part No. 14A-2.5R-16 Mouser Part No 530-14A-2.5R-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	42In Stock	Rp228.040,78 Rp208.410,56 Rp199.971,40 Rp193.550,30 View Rp187.496,12 Rp160.527,50 Rp149.152,98 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	16 V CT/8 V	2.5 VA	150 mA/300 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	36.5 mm	28.6 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 20VA 14A-20-512 Bel Signal Transformer 1: Rp364.718,48 15In Stock	Mfr. Part No. 14A-20-512 Mouser Part No 530-14A-20-512	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 20VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	15In Stock	Rp364.718,48 Rp328.576,86 Rp314.817,36 Rp304.910,52 View Rp254.275,56 Rp252.991,34	Min.: 1 Mult.: 1	115 VAC, 230 VAC	5 V/12 V	20 VA	200 mA/750 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.6 mm	41.3 mm	14A
Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC 14A-30-515 Bel Signal Transformer 1: Rp431.314,46 83In Stock	Mfr. Part No. 14A-30-515 Mouser Part No 530-14A-30-515	Bel Signal Transformer	Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	83In Stock	Rp431.314,46 Rp376.276,46 Rp364.351,56 Rp357.563,54 View Rp341.969,44 Rp312.799,30 Rp304.543,60 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	5 V/15 V	30 VA	200 mA/1.25 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	39.7 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 10VA REVISED 14A-10R-36 Bel Signal Transformer 1: Rp248.221,38 550On Order	Mfr. Part No. 14A-10R-36 Mouser Part No 530-14A-10R-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 10VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	550On Order On Order Ship Dates Mfr. No: 14A-10R-36 Stock: 0 On Order: 200 Pending 350 Expected 20/11/2026 Factory Lead Time: 18 Weeks	Rp248.221,38 Rp237.397,24 Rp227.673,86 Rp220.518,92 View Rp213.547,44 Rp204.741,36 Rp198.136,80 Rp177.405,82 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	36 V CT/18 V	10 VA	280 mA/560 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	47.6 mm	39.7 mm	34.9 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 20VA 14A-20-24 Bel Signal Transformer 1: Rp315.184,28 223On Order	Mfr. Part No. 14A-20-24 Mouser Part No 530-14A-20-24	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 20VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	223On Order	Rp315.184,28 Rp283.996,08 Rp272.071,18 Rp263.632,02 View Rp226.756,56 Rp220.518,92 Rp215.748,96	Min.: 1 Mult.: 1	115 VAC, 230 VAC	24 V CT/12 V	20 VA	830 mA/1.66 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.6 mm	41.3 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA 14A-30-28 Bel Signal Transformer 1: Rp397.374,36 100On Order	Mfr. Part No. 14A-30-28 Mouser Part No 530-14A-30-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	100On Order	Rp397.374,36 Rp346.739,40 Rp335.731,80 Rp329.494,16 View Rp321.788,84 Rp292.985,62 Rp283.629,16 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	28 V CT/14 V	30 VA	1.06 A/2.12 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	39.7 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED 14A-5.0R-20 Bel Signal Transformer 1: Rp244.001,80 399On Order	Mfr. Part No. 14A-5.0R-20 Mouser Part No 530-14A-5.0R-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 05VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	399On Order	Rp244.001,80 Rp211.345,92 Rp202.723,30 Rp196.302,20 View Rp190.064,56 Rp182.175,78 Rp176.488,52 Rp170.801,26 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	20 V CT/10 V	5 VA	250 mA/500 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	36.5 mm	34.9 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-12 Bel Signal Transformer 1: Rp599.180,36 39Expected 26/01/2027	Mfr. Part No. 14A-56-12 Mouser Part No 530-14A-56-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	39Expected 26/01/2027	Rp599.180,36 Rp512.587,24 Rp479.197,52 Rp474.977,94 View Rp467.272,62 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	12.6 V CT/6.3 V	56 VA	4.4 A/8.8 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER STEP DOWN AUTO OF 14A-10R-10 Bel Signal Transformer 1: Rp278.675,74 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-10R-10 Mouser Part No 530-14A-10R-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER STEP DOWN AUTO OF Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp278.675,74 Rp242.167,20 Rp232.260,36 Rp207.860,18 View Rp195.017,98 Rp189.514,18 Rp185.478,06 Rp183.643,46 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	10 V CT/5 V	10 VA	1 A/2 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	47.6 mm	39.7 mm	34.9 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED 14A-2.5R-28 Bel Signal Transformer 500: Rp146.768,00 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-2.5R-28 Mouser Part No 530-14A-2.5R-28	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp146.768,00 Rp143.465,72 Quote Quote	Min.: 500 Mult.: 50	115 VAC, 230 VAC	28 V CT/14 V	2.5 VA	90 mA/180 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	41.3 mm	36.5 mm	28.6 mm	14A
Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED 14A-20-10 Bel Signal Transformer 75: Rp353.160,50 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-20-10 Mouser Part No 530-14A-20-10	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER 14A 2.5VA REVISED Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp353.160,50 Rp345.822,10 Rp336.465,64 Rp329.677,62 Quote Quote	Min.: 75 Mult.: 25	115 VAC, 230 VAC	10 V CT/5 V	20 VA	2 A/4 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.6 mm	41.3 mm	14A
Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC 14A-20-515 Bel Signal Transformer 1: Rp348.757,46 Lead-Time 18 Weeks	Mfr. Part No. 14A-20-515 Mouser Part No 530-14A-20-515	Bel Signal Transformer	Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Lead-Time 18 Weeks	Rp348.757,46 Rp319.036,94 Rp299.406,72 Rp289.499,88 View Rp266.750,84 Rp255.376,32 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	5 V/15 V	20 VA	175 mA/750 mA	Through Hole	Dual Primary Winding	Dual Secondary Winding	57.2 mm	47.6 mm	41.3 mm	14A
Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC 14A-30-10 Bel Signal Transformer 500: Rp268.035,06 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-30-10 Mouser Part No 530-14A-30-10	Bel Signal Transformer	Power Transformers - Board Mount TRANS CUST ONE-4-ALL MICROPROC Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp268.035,06 View Quote	Min.: 500 Mult.: 20	115 VAC, 230 VAC	10 V CT/5 V	30 VA	3 A/6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	39.7 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA 14A-30-12 Bel Signal Transformer 60: Rp363.617,72 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-30-12 Mouser Part No 530-14A-30-12	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp363.617,72 Rp358.113,92 Rp351.142,44 Rp343.437,12 View Quote	Min.: 60 Mult.: 20	115 VAC, 230 VAC	12.6 V CT/6.3 V	30 VA	2.4 A/4.8 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	39.7 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA 14A-30-16 Bel Signal Transformer 1: Rp421.224,16 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-30-16 Mouser Part No 530-14A-30-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 30VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp421.224,16 Rp367.470,38 Rp355.728,94 Rp349.124,38 View Rp323.439,98 Rp309.497,02 Rp278.308,82 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	16 V CT/8 V	30 VA	1.9 A/3.8 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	66.7 mm	55.5 mm	39.7 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-16 Bel Signal Transformer 1: Rp624.314,38 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-56-16 Mouser Part No 530-14A-56-16	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp624.314,38 Rp518.091,04 Rp484.150,94 Rp476.996,00 View Rp469.841,06 Rp455.531,18 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	16 V CT/8 V	56 VA	3.5 A/7 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-20 Bel Signal Transformer 1: Rp645.779,20 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-56-20 Mouser Part No 530-14A-56-20	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp645.779,20 Rp536.070,12 Rp507.083,44 Rp476.996,00 View Rp475.528,32 Rp463.419,96 Quote	Min.: 1 Mult.: 1	115 VAC, 230 VAC	20 V CT/10 V	56 VA	2.8 A/5.6 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-36 Bel Signal Transformer 500: Rp360.865,82 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-56-36 Mouser Part No 530-14A-56-36	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp360.865,82 View Quote	Min.: 500 Mult.: 20	115 VAC, 230 VAC	36 V CT/18 V	56 VA	1.56 A/3.12 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A
Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA 14A-56-512 Bel Signal Transformer 40: Rp534.602,44 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 14A-56-512 Mouser Part No 530-14A-56-512	Bel Signal Transformer	Power Transformers - Board Mount TRANSFORMER ONE-4-ALL 56VA Learn More about Bel Signal Transformer signal transformer 14a transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Rp534.602,44 Rp526.346,74 Rp524.145,22	Min.: 40 Mult.: 20	115 VAC, 230 VAC	5 V/12 V	56 VA	300 mA/3 A	Through Hole	Dual Primary Winding	Dual Secondary Winding	76.2 mm	63.5 mm	46.5 mm	14A