• Ceramic X7R experiences reduced capacitance due to applied bias voltage.

→Film capacitor does not experience a reduction of capacitance.

• In some cases, a noise is generated (piezoelectric effect) when Ceramic X7R is used in AC circuits.

→Use of a film capacitor prevents noise.

• Film capacitor has high noise absorbency due to low ESR.

• Set circuit movements are stable due to stable temperature characteristics.

• Mobile Phones • PHS • PDAs • W-LANs

• Ceramic X7R noise countermeasure
• Low ESR, stable capacity