330 mF at 7.5 V — high-voltage supercapacitor for backup and peak-power
The KYOCERA AVX SCMR14G334SRBB0 is a 330 mF supercapacitor rated at 7.5 V, placing it above the common 2.7 V or 5.5 V cell voltages. The 450 mOhm ESR at 1 kHz sets the peak current the capacitor can deliver without excessive self-heating. For a 5 V rail dropping to 4.5 V during a brief mains dip, the available discharge current is roughly (7.5 V - 4.5 V) / 0.45 Ω ≈ 6.7 A peak — enough to keep a small microcontroller or real-time clock alive through a 100 ms brownout.
Through-hole radial can with 13.50 mm lead spacing
Packaged in a radial can with PC pins on 13.50 mm lead spacing, the SCMR14G334SRBB0 fits a standard through-hole PCB footprint. The 24.00 mm x 8.00 mm body and 15.50 mm seated height leave clearance under low-profile enclosures. The -10%, +30% tolerance on the 330 mF nominal means the actual capacitance can range from 297 mF to 429 mF. For hold-up time calculations, use the minimum value to guarantee the backup duration.
Active production — no end-of-life notice
The 1000-hour lifetime at 65°C is the rated endurance — derating the applied voltage or reducing ripple current extends service life significantly.