BOM-fit for a bulk-capacitor position
The TPSD685M035R0500: The 500 mOhm ESR is the figure that governs ripple-current handling and transient response in a power rail — a lower ESR means less self-heating and better decoupling at the switching frequency. For a 35 V rail, the 6.8 µF value provides enough charge storage to hold up the bus during a load step without the bulk capacitance of an aluminum electrolytic.
Case size, temperature grade, and shelf life
Tape & Reel packaging means it feeds into a pick-and-place line without a reel change; store the reels in a dry cabinet below 60% RH to avoid moisture absorption into the molded epoxy body.
Active lifecycle and supply posture
The TPS series is a long-running molded tantalum line, so the D-case 6.8 µF / 35 V variant should remain orderable for the foreseeable future.
