5 F, 2.7 V — the energy buffer for short-duration hold-up
The KYOCERA AVX SCCS20B505PRB is a 5 F supercapacitor from the SCC series, rated at 2.7 V with a 70 mOhm ESR at 1 kHz. This combination of capacitance and low ESR makes it suited for peak-power buffering in applications like backup power for real-time clocks, microcontroller hold-up during battery swaps, or pulse current delivery in wireless transmitters. The 70 mOhm ESR at 1 kHz is the key spec for pulse discharge — it determines the voltage drop under a current step. For a 1 A pulse, the initial IR drop is 70 mV, which stays within the 2.7 V rail tolerance for most downstream logic.
Radial can, through-hole — board-fit and thermal envelope
Packaged in a radial can with PC pin termination, the SCCS20B505PRB has a 10.00 mm diameter and a seated height of 22.00 mm. The 5.50 mm lead spacing matches the standard 0.2-inch pitch on perfboard or PCB layouts — no custom footprint needed. Operating temperature is -40°C to 65°C, with a rated lifetime of 1000 hours at 60°C. This means the capacitor's capacitance and ESR remain within spec for 1000 hours at the upper temperature bound; derating the temperature extends useful life significantly.
Active production — sourcing for the BOM line
The 0%, +100% tolerance on capacitance means the actual value can be anywhere from 5 F to 10 F. For hold-up time calculations, use the minimum (5 F) as the design case; the extra capacitance is margin that only helps pulse duration.