Vishay – High-frequency RF and microwave multilayer ceramic chi capacitors (VJ HIFREQ)

A new series of surface-mount multilayer ceramic chip capacitors (MLCCs) has been introduced by Vishay, offering high self-resonance, a high Q factor of ≥2000, and a low dissipation factor of ≤0.05% for operation in high-frequency commercial applications.

With their low dissipation factor, devices in the VJ HIFREQ series are optimized for filter and matching networks, and amplifier and DC blocking circuits. 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. Allowing designers to meet the size requirements of their specific applications, the VJ HIFREQ series is offered in 0402, 0603, and 0805 case sizes, with broad working voltages from 25VDC to 250VDC, and wide capacitance ranges from 1pF to 1.5nF. The devices offer tight tolerances to ± 0.1pF, an excellent aging rate of 0% per decade, and an operating temperature range of -55C to +125C.

Manufactured in noble metal electrode technology (NME) with a wet build process, the capacitors are available with various RoHS-compliant termination finishes to meet the needs of specific applications. Available options are nickel barrier with 100% matte tin plate for reflow assembly (code X); silver-palladium for conductive epoxy assembly (code E); and non-magnetic for applications sensitive to magnetic interference (code N). Also, for those applications that demand it, the product is offered with a lead-bearing (minimum 4%) termination finish (code L).