Vishay Introduces Industry's First MLCC for High-Frequency RF and Microwave Applications

Recently, Vishay Intertechnology, Inc. announced the launch of VitramonVJ HIFREQ HT series, the industry's first surface mount multilayer ceramic chip capacitor (MLCC) for high frequency RF and microwave applications, with an operating temperature range of up to +200 C. For communication base stations and defense communication systems, Vishay's VitramonVJ HIFREQ HT series offers four compact sizes, all with ultra-high Q and low ESR.

For high-power communications transmitters and high-frequency inverters exposed to +175°C or higher, designers had previously had to rely on MLCCs limited to +150°C. The devices released today have an operating temperature range of -55°C to +200°C, providing long-term reliability in such applications. To increase design flexibility, MLCC's small 0402, 0603, 0805 and 1111 housing sizes allow placement close to highly dissipative components such as SiC and GaN switches.

The VJ HIFREQ HT series devices are based on an ultra-stable ceramic dielectric that provides high series resonant frequency (SRF) and parallel resonant frequency (PRF). The MLCC has a larger operating voltage range from 16V to 500V and a larger capacitance range from 0.1pF to 3.3nF with a tolerance of only ±0.05 pF. The device offers excellent 0% aging rate per decade and high ESD tolerance to prevent high voltage transients.

These capacitors are manufactured using the noble metal electrode (NME) technology in a wet manufacturing process and employ a variety of RoHS compliant termination finishes including: 100% tin plated for reflow soldering Nickel barrier (coded "X"), a non-magnetic copper barrier (code "C") for magnetic interference sensitive applications, and silver palladium (coded "E") for conductive epoxy components. The VJ HIFREQ HT series can also have a lead (at least 4%) terminal coating (code "L"). These device devices are halogen-free and Vishay Green compliant (except for the "L" terminal).

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Author：Brittany Antonia （The author of article owns the copyright.）