KHF Miniature Aluminum Electrolytic Capacitors Chemi-Con KHF Miniature Aluminum Electrolytic Capacitors (AECs) are radial-leaded and offer 3000 hours at +105°C endurance with ripple current. Chemi-Con KHF AECs feature a rated voltage range from 400VDC to 450VDC and a 33μF to 150μF capacitance range. The series is designed for use in low-profile power supplies.