Sizing the bulk cap for a 35 V rail
For a 28 V nominal aerospace bus that sees 32 V during a transient, the 35 V rating provides 10 % headroom — enough to stay within the derating guidelines typical of MIL-PRF-55365 screening. The 900 mOhm ESR limits the ripple current to roughly 0.5 A RMS at 100 kHz before self-heating becomes a concern; this part is suited for bulk storage and hold-up capacitance rather than high-frequency decoupling.
This means it can be used in avionics LRUs, satellite power buses, and downhole instrumentation without a temperature-grade exception. The molded case (size D, 7.30 mm x 4.30 mm x 3.10 mm) is a standard surface-mount footprint that reflows on a standard profile; no special handling beyond MSL 1 is expected.
