- Buyers Guide
Military Microwaves Supplement
At IMS 2014, Vishay will be highlighting its VJ HIFREQ series and VJ QUAD HIFREQ series of surface-mount multilayer ceramic chip capacitors (MLCCs). Offering high self resonance and a low dissipation factor of = 0.05 % in the 0402, 0603, and 0805 case sizes, devices in the VJ HIFREQ series are optimized for filter and matching networks, and amplifier and DC blocking circuits in high-frequency commercial applications. The MLCCs reduce signal loss and energy consumption in power amplifier modules, VoIP networks, cellular base stations, GPS systems, and satellite, WiFi (802.11), and WiMAX (802.16) wireless communication. The VJ HIFREQ series features broad working voltages from 25 VDC to 250 VDC and wide capacitance ranges from 1 pF to 1.5 nF.
Designed for high-frequency RF applications in telecommunications, medical, military, and industrial equipment and instrumentation, the QUAD HIFREQ series is offered in quad 0505, 1111, and 2525 case sizes and features ultra-low ESR down to 0.01 ?. Offering high serial resonant frequency (SRF) and parallel resonant frequency (PRF), the MLCCs are designed to provide reliable performance in critical applications such as UHF and microwave RF power amplifiers, filter and impedance matching networks, timing circuits, mixers, and oscillators. The QUAD HIFREQ series offers broad working voltages from 200 V to 3600 V, and wide capacitance ranges from 1.0 pF to 2700 pF.
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