Tangda EPC13 core Bobbin 5+5 pin 10p SMD EPC magnetic core+skeleton PC40 soft ferrite cores Transformers horizontal 4 groove A Tangda EPC13 core Bobbin 5+5 pin 10p SMD EPC magnetic core+skeleton PC40 soft ferrite cores Transformers horizontal 4 groove A. Sale price : $15.30 Category : Home Improvement