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Miniature Snap-in Power Aluminum Electrolytic Capacitors for High Power Density in 20% Smaller Case Size

Miniature Snap-in Power Aluminum Electrolytic Capacitors
Miniature Snap-in Power Aluminum Electrolytic Capacitors

Vishay Intertechnology, Inc. has introduced a new series of miniature snap-in power aluminum electrolytic capacitors for high power density designs. The BCcomponents 257 PRM-SI series offers ripple current of up to 5.05A, this is 20% higher ripple current than the previous generation solutions in a 20% smaller case sizes at a longer life to 5000 hours at 85 °C. With the new devices, designers can utilize fewer components to save board space and lower costs.


The 257 PRM-SI series is designed in a cylindrical aluminum case, insulated with a blue sleeve with the rated voltage of 500V in 25 compact case sizes ranging from 22 mm by 25 mm to 35 mm by 60mm. As polarized aluminum electrolytic capacitors with a non-solid electrolyte, the devices are ideally suited for smoothing, buffering, and DC-Link filtering in switch-mode power supplies used in medical, consumer welding, and test and measurement equipment, in addition to general industrial control and audio/video system applications.


Features of 257 PRM-SI series

  • Capacitance range: 56µF to 3300 µF
  • Rated voltage: 200 V to 450 V and 500V with temperature range -40 °C to +85 °C and -25 °C to +85 °C respectively.
  • Maximum ESR at 100Hz: 70 mΩ to 3740 mΩ
  • The maximum impedance at 10 kHz: 60 mΩ to 3240 mΩ
  • Useful life: 5000h at + 85 °C


Note: More technical Information can be found in the datasheet linked at the bottom of this page and in the 257 PRM-SI series product page.

Component Datasheet

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