... Frequency Range,switching power supply, PCB, STB and other communication and medical equipments;EE,EI Type Transformer: Possessing ... quality.Application: Wave carrier filter, power-transfer transformer and aux-power transformer.ER Type TransformerFeature: Compact, low ... one, the jar-shape cores easily coiling, high inductance and microminiaturize.Application: Wave-carrier frequency filter, all kinds ...