Vishay / BC Components 257 PHM-SI Capacitors

Vishay / BC Components 257 PHM-SI Miniature Snap-In Power Ripple Capacitors have a 5000h life at 85ºC and are available up to 500V. The series has a rated capacitance range of 56μF to 3300μF with a tolerance of ±20%. 257 PHM-SI applications include general purpose, industrial and audio/video systems, smoothing and filtering, and standard and switched mode power supplies.


  • Up to 500V
  • Useful life: 5000h at 85°C
  • Polarized aluminum electrolytic capacitors, non-solid electrolyte
  • Large types, very small dimensions, cylindrical aluminum case, insulated with a blue sleeve
  • Keyed polarity version available


  • General purpose, industrial and audio / video systems
  • Smoothing and filtering
  • Standard and switched mode power supplies
Published: 2020-01-15 | Updated: 2022-03-10