8.1 V rated — wider voltage margin than typical supercaps
The SCMR22J105SRBA0 is a 1 F supercapacitor from the KYOCERA AVX SCM series, rated at 8.1 V.
ESR and lifetime — the practical limits
ESR is 350 mOhm at 1 kHz. That figure governs the peak discharge current — a 1 F cap at 8.1 V can deliver about 23 A into a short circuit, but the ESR limits useful pulse current to a few amps before the voltage drop becomes unacceptable. For a 100 mA hold-up load, the IR drop across the ESR is only 35 mV, negligible. Lifetime is specified at 1000 hours at 65°C. Derate for higher ambient or continuous ripple current — at 40°C the expected life roughly doubles per 10°C drop.
Through-hole radial — board integration
Packaged in a radial can with PC pin termination, the part measures 24.00 mm x 8.00 mm body with a seated height of 23.50 mm max. Lead spacing is 13.50 mm. The through-hole footprint suits manual assembly or wave-solder lines; the bulk packaging means no reel or tape handling.