470 mF energy storage for backup and peak-power hold-up
The KYOCERA AVX SCMQ14F474PRBA0 is a 470 mF supercapacitor from the SCM series, rated at 5.5 V with a 500 mOhm ESR at 1 kHz. This capacitance and voltage combination stores roughly 7.1 J of energy — enough to hold up a real-time clock or SRAM through a brief mains dropout, or to supply a peak current pulse that a battery alone cannot deliver without voltage sag. The 500 mOhm ESR governs how fast the cell can charge and discharge: a lower ESR means less internal heating during high-current pulses, but the 500 mOhm figure is typical for a 470 mF cell in this form factor and is adequate for most backup and pulse applications.
Through-hole radial can with PC pin termination
The 0%, +100% tolerance means the actual capacitance can be anywhere from 470 mF to 940 mF — a wide spread that is normal for supercapacitors and must be accounted for in the timing or energy-budget calculation at the design stage.