470 mF, 5.4 V — energy buffer for hold-up and peak-power
The KYOCERA AVX SCMR14D474PRBB0 is a 470 mF supercapacitor rated at 5.4 V, part of the SCM series. With an ESR of 300 mOhm at 1 kHz, it delivers the low internal resistance needed for pulse discharge and fast recharge cycles — think ride-through backup in a 5 V rail or peak-current assist for a motor-drive DC link. The through-hole radial can (16.00 mm x 8.00 mm footprint, 15.50 mm seated height) with 11.50 mm lead spacing fits standard PCB layouts for bulk energy storage.
ESR and capacitance tolerance — what they mean for the BOM
The 300 mOhm ESR at 1 kHz sets the I²R heating during charge/discharge. For a 1 A pulse, the internal temperature rise is roughly 0.3 W — well within the can's thermal budget if the duty cycle is low. The 0%, +100% tolerance on capacitance means the minimum guaranteed value is 470 mF; actual parts can measure up to 940 mF, which shifts the RC time constant but never undershoots the minimum energy storage.