Audio Toroidal Transformer Dimensions Chart：Size vs. Power Rating Comparison

Mar 22,2025 | nretec

Audio Toroidal Transformer Dimensions Chart
Item	Power (VA)	Length (L) mm	Width (W) mm	Height (H) mm	Frequency Range
AT-5	5VA	43	40	35	20Hz-20KHz
AT-10	10VA	50	40	43
AT-15	15VA	50	46	43
AT-20	20VA	50	52	43
AT-25	25VA	59	47	51
AT-30	30VA	59	55	51
AT-40	40VA	68	60	58
AT-60	60VA	68	68	58
OT-18	18VA	55	58	66
OT-33	33VA	64	70	76
OT-50	50VA	72	80	86
OT-80	80VA	80	90	96
OT-100	100VA	88	105	105
OT-150	150VA	95	115	114

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