Energy storage and discharge — 5 F at 5.4 V with 100 mOhm ESR
The SCMT22D505PRBB0: Rated 5 F capacitance at 5.4 V, this supercapacitor stores roughly 73 J of usable energy (E = ½CV²) — enough to hold up a real-time clock, buffer a power-fail write cycle, or supply a peak current burst in a metering or actuator circuit. 100 mOhm ESR at 1 kHz sets the charge/discharge efficiency and the ripple current capability. A lower ESR means less self-heating during high-current pulses; at 5 F, this ESR is typical for a cell sized to deliver several amps for a few seconds without excessive voltage droop.
Thermal limits and lifetime — 85 °C ceiling, 1000 h at 65 °C
At 85 °C the lifetime derates significantly — expect roughly 250 h at the upper limit per the Arrhenius model typical for supercapacitor electrolytes. For applications that cycle near the temperature ceiling (outdoor enclosures, engine compartments), plan for accelerated aging. A 10 °C drop in ambient roughly doubles the usable life.
Through-hole radial can — board footprint and mechanical fit
Packaged in a radial through-hole can measuring 25.00 mm x 12.50 mm, seated height 23.50 mm max. Lead spacing is 18.00 mm (0.709") — a standard pitch that fits common 2-pin supercapacitor footprints on power supply or backup board sections. Termination is PC Pins, suitable for wave-solder assembly. The bulk packaging means parts are tube- or tray-packed, not tape-and-reel — confirm handling for pick-and-place if you plan automated insertion.
Capacitance tolerance — design for the low end
Tolerance is 0%, +100% — the actual capacitance of any given unit can be anywhere from 5 F to 10 F. For hold-up time calculations, use the minimum 5 F as the worst-case energy storage; the upper spread only improves margin.