Surface mount MLCCs minimise lead content to minimise tin whiskers
Surface mount multi-layer ceramic chip capacitors (MLCCs) from Vishay Intertechnology have minimum lead content. The MLCCs have a lead (Pb)-bearing termination finish suitable for low Earth orbit (LEO) satellites and other space, military, and avionics applications which require tin whisker mitigation. Operating temperatures can be as high as +150 degrees C.
The Vishay Vitramon VJ. . . .32 Lead-Bearing Finish series offers a termination finish with a minimum lead (Pb) content of four per cent. Previously, the option for lead (Pb)-bearing termination finishes was reserved for more expensive Hi-Rel devices, revealed Vishay. The VJ . . .32 MLCCs provide designers with a cost-effective alternative for aerospace systems in which tin whiskers must be avoided but space-level reliability is not required, continued the company.
The MLCCs are manufactured in noble metal electrode (NME) technology with a wet build process. The VJ….32 Lead-Bearing Finish series is available with C0G (NP0) and X7R dielectrics in five body sizes from 0402 to 1210. Devices with a C0G (NP0) dielectric feature low capacitance down to 1.0pF, a temperature co-efficient of capacitance (TCC) of 0ppm/°C ± 30ppm/ degrees C from -55 to +125 degrees C, and an aging rate of 0 per cent maximum per decade. X7R devices provide higher capacitance to 1.0µF, TCC of ± 15 per cent from -55 to +125 degrees C and an aging rate of one per cent maximum per decade.
The MLCCs are qualified according to AEC Q200 to provide designers with Automotive Grade reliability.
Samples and production quantities of the VJ….32 Lead-Bearing Finish MLCCs are available now, with lead times of 12 weeks.
Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components for designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets.