Vishay / BC Components 193 PUR-SI Snap-In Aluminum Electrolytic Capacitors (AECs) offer high ripple current and 5000 hours at +105°C useful life. Vishay / BC Components 193 PUR-SI Capacitors offer up to 500V rated voltage in a compact 22mm x 25mm to 35mm x 60mm case. The series is designed for use in solar photovoltaic (PV) inverters, smoothing and filtering, and motor controls / small drives.