Energy buffer for backup and peak-power hold-up
The KYOCERA AVX SCMR14C474PSBA0H is a 470 mF supercapacitor rated at 5 V with a 300 mOhm ESR at 1 kHz. It belongs to the SCM series, designed for applications requiring a compact energy reservoir — think real-time clock backup, power-fail hold-up, or peak-current assist in battery-powered systems. The through-hole radial can with PC pins at 11.50 mm lead spacing integrates into a standard drilled PCB layout.
What the 0%, +100% tolerance means for your circuit
The 0%, +100% tolerance on capacitance is wide — the actual part can deliver anywhere from 470 mF up to 940 mF. That matters for timing circuits or energy-budget calculations: the downstream regulator or load must handle the extra stored energy at the upper end without overvoltage or inrush issues. ESR is specified at 300 mOhm at 1 kHz, which sets the charge/discharge current capability and the self-heating under ripple. Rated lifetime is 1000 hours at 65 °C. Derate the lifetime at higher temperatures per the manufacturer's guidelines.