Vishay Extends 900 to 2700V Heavy Duty Capacitors for Power Electronics With New Capacitance Values
Vishay Intertechnology, Inc. is extending its heavy-duty Vishay ESTA HDMKP capacitors for power electronics with new capacitance and packaging options. HDMKP capacitors are available in six standard voltages from 900 to 2700Vdc. Previously offering capacitance values from 40 to 1100µF, the series has now been extended to offer capacitance values up to 2235µF, with a capacitance tolerance of 5%.
The HDMKP capacitors are aimed at dc and ac filtering and dc linking applications in power converters for uninterruptible power supplies, wind turbines, and in power converters for traction and industrial drives. They will also serve as impulse discharge capacitors for magnetizing and welding. The metallized-film HDMKP capacitors feature current ratings as high as 150A, high impulse current of up to 25kA, and low self-inductance of less than 70nH.
According to Vishay, in addition to their exceptionally low inductance and high current ratings, the HDMKP capacitors are said to offer extremely low losses at high frequencies, low ESR, and high resistance to the effects of shock and vibration for high reliability and life expectancy in rugged environments.
In addition to new capacitance ratings, the series is gaining a new case option for a total of four. Capacitor height options range from 105 to 260mm, with diameters of 84.4 and 116mm. The devices feature a non-polar dielectric and are easily mounted using an integrated M 12 stud on their base.
Devices in the HDMKP series are specified for an operating temperature of -40 to +70°C at full rated voltage, or up to +100°C at half of the rated voltage, and meet IEC 61071-1, EN 61071, IEC 68-2, and IEC 61881 standards. Terminal-to-terminal test voltage is 1.5 times the rated dc voltage for 10 seconds.
Samples and production quantities of the HDMKP series capacitors are available now, with lead times of 8 to 10 weeks.
