Ceramic screw-mounting disc capacitors can replace screw terminal ceramic models
Extending the Vishay Cera-Mite 715CxxKT series of ceramic screw-mounting disc capacitors, Vishay Intertechnology has announced models with higher voltages to 50kV DC (34kV RMS).
With low AC and DC coefficients and a negligible piezoelectric / electrostrictive effect, 715CxxKT series capacitors are specifically designed to function in circuits with high peak current and high repetition rates, explains Vishay. They are optimised for high frequency coupling and decoupling, laser excitation, and fast-repetition pulse circuitry in high voltage power supplies, CO2 lasers, and x-ray and welding equipment, in which low losses and high permittivity are required.
The 715CxxKT series can be used as a replacement for the DHS high voltage screw terminal type ceramic capacitors for which Murata Manufacturing announced a last order date of March 31, 2020. It can also be used as a replacement for the AVX HP and HD series for which AVX announced a last order date of March 31, 2019.
Diameters range from 21 to 60mm. The 715CxxKT series devices feature a N4700 (T3M) Class 1, strontium-based ceramic dielectric in a moulded epoxy case. The RoHS-compliant capacitors offer a low dissipation factor of 0.2 per cent at 1.0kHz and a range of capacitance values from 100pF to 8nF over a voltage range of 10 to 50kV DC (7.0 to 34kV RMS).
Samples of the extended 715CxxKT series capacitors are available now. Production quantities are available with lead times of 12 weeks for large orders.
