600 mF at 8.1 V — energy buffer sizing
The SCMR18J604SSBA0: Rated 600 mF at 8.1 V, this supercapacitor stores roughly 19.7 J of usable energy — enough to hold up a real-time clock or SRAM backup for minutes during a power interruption, or to supply a peak current burst for a GSM/GPRS transmit pulse. The 400 mOhm ESR at 1 kHz sets the maximum instantaneous current the cell can deliver without dropping the terminal voltage below the load's minimum operating threshold — a 1 A pulse sees a 400 mV IR drop before the capacitance voltage decays.
Through-hole radial can — board integration
Radial can, through-hole package with 0.453-inch (11.50 mm) lead spacing and PC pin termination — mounts directly into a standard 0.1-inch grid prototype board or a custom PCB footprint with two 1.0 mm diameter plated holes.
Temperature and lifetime envelope
Rated for 1000 hours at 65°C — the lifetime doubles for every 10°C drop in operating temperature, so at 45°C the expected life extends to roughly 4000 hours, and at 25°C to about 16,000 hours under continuous rated voltage.