Vishay Intertechnology has developed a multilayer ceramic capacitor that mimics the behaviour of film capacitors but which can survive the rigours of surface-mount production lines.
The Cer-F design uses a construction that tunes a Y5E ceramic temperature profile to one that resembles a typical polyester or polycarbonate film capacitor.
The capacitor was developed as a replacement for film capacitors that could survive the rigours of the wavesoldering process on a surface-mount production line. The temperatures that are needed for wavesoldering can unpredictably affect film capacitors.
Shortages of some types of film capacitor also mean that designers are having to look at ceramic replacements because there are no film equivalents in production.
Although multilayer ceramic capacitors have been used to replace film capacitors, particularly as C0G-profile parts are almost completely insensitive to temperature, they often demand circuit changes.
Patrick Gormally, director of worldwide multilayer ceramic capacitor marketing for Vishay Intertechnology, said: "The Cer-F eliminates the need for this kind of workaround, since it's specifically built to replace film capacitors."