Active tantalum — 33 µF, 35 V, 300 mΩ ESR
The TPSD336M035R0300: The 300 mΩ ESR (equivalent series resistance) is the figure that governs ripple-current handling and self-heating in the circuit — a lower ESR means less internal temperature rise under AC load, which directly affects reliability in power-supply decoupling or hold-up capacitor roles.
2917 footprint, D case — board-fit checklist
The surface-mount footprint is standard for this case code — the pad layout and solder-paste stencil aperture follow the KYOCERA AVX recommended land pattern for the D case. Available on tape and reel or cut tape, the package suits automated pick-and-place assembly.