PC Mount Isolation Transformer

West Coast Magnetics' 804 series power transformer is designed for 50/60 Hz operation. This transformer uses a split bobbin construction with a shroud resulting in high isolation between windings. The transformer package is rated for a 3750 Vac Hypot with power levels ranging from 2.8 VA to 36 VA.

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Design Constants

Size Code	Ae core area (cm²)	le magnetic path length (cm)	Ve core volume (cm³)	Wa bobbin winding area (cm²)	Wa Ac core area x winding area (cm⁴)	Bobbin winding width (mm)	Bobbin winding height (mm)	Mean length per turn (cm)	Surface area (cm²)	VA Rating	Weight (kg)
804-1	1.21	8.26	9.83	.731	.885	6.60	5.54	7.6	57	2.8	0.12
804-2	1.61	8.26	13.10	.731	1.177	6.60	5.54	8.2	62	3.8	0.15
804-3	2.52	9.53	23.64	.886	2.23	7.92	5.59	9.5	83	7.7	0.25
804-4	3.63	11.43	41.01	1.51	5.49	10.41	7.26	11.2	120	17.5	0.43
804-5	3.52	13.34	46.26	2.27	8.00	12.83	8.86	11.7	147	24.0	0.53
804-6	4.84	15.24	71.89	2.68	12.96	12.83	10.44	13.5	195	36.0	0.75

*NOTE: VA rating based on 60 Hz operation

part views

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Part Number	H	L	W	X₁	X₂	Y	l	d(square)
804-1	1.09/2.77	1.63/4.14	1.32/3.35	.250/.64	.200/.51	1.000/2.54	.30/.76	.025/.064
804-2	1.35/3.43	1.63/4.14	1.32/3.35	.400/1.02	.200/.51	1.000/2.54	.30/.76	.025/.064
804-3	1.37/3.48	1.88/4.78	1.57/3.99	.400/1.02	.200/.51	1.128/2.87	.30/.76	.036/.091
804-4	1.59/4.04	2.30/5.84	1.88/4.78	.400/1.02	.200/.51	1.436/3.65	.30/.76	.036/.091
804-5	1.59/4.04	2.63/6.68	2.25/5.72	.275/.69	.275/.70	1.650/4.19	.30/.76	.045/.114
804-6	1.83/4.65	3.05/7.75	2.55/6.48	.300/.76	.300/.76	1.866/4.74	.30/.76	.045/.114

Note: All materials of construction minimum Class B 130 degrees C rated.

Dimensions: Inches/mm

pcb layouts

Part Number	X₁	X₂
804-1	.250/.64	.200/.51
804-2	.400/1.02	.200/.51
804-3	.400/1.02	.200/.51
804-4	.400/1.02	.200/.51
804-5	.275/.69	.275/.70
804-6	.300/.76	.300/.76

Note: All materials of construction minimum Class B 130 degrees C rated.

Dimensions: Inches/mm