A range of RoHS compliant Multilayer Ceramic Chip Capacitors (MLCC) with ultra-low equivalent series resistance (ESR) has been designed and developed by Syfer Technology.
The devices use an existing, very stable, High Q material system that provides low loss performance in systems to beyond 3GHz. ESR at 1GHz for a typical 10pF capacitor is below 0.1Ohms, which has the potential to offer a significant improvement over standard High Q devices.
Demand for low ESR capacitors is increasing as these passive components can be used in higher power applications and can help reduce power consumption in battery-powered devices and RF power amplifiers. In addition, the better power handling of the capacitors can allow for downsising or reduction in cooling considerations for a range of existing technologies.
Applications include telecommunications systems and other RF and microwave installations, particularly high power RF circuits, amplifier matching networks, filtering, diplexers and antenna matching.
The high frequency MLCC’s are also suitable for many general purpose applications where economical, high performance is required, including High Q, DC blocking, VCO frequency stabilisation and bypass & coupling circuitry.
The company’s range of devices includes case sizes of 0603, 0805 and 1111; over a capacitance range from 0.5pF to 240pF; rated voltages of 200, 250 and 500V and high self-resonant frequencies up to 10GHz.
They are available with various termination options including copper barrier for non-magnetic applications.
Syfer Technology
