33 µF, 25 V, 200 mOhm ESR — the parametric profile for this D-case tantalum
The TPSD336M025S0200: 200 mOhm ESR at 25 °C is the figure that governs ripple current capability and self-heating. In a switching regulator output filter, the ESR sets the output ripple voltage: a 1 A ripple current produces 200 mV of ripple across the capacitor. The same ESR limits the capacitor's own temperature rise under AC load — exceeding the ripple current rating accelerates dry-out and shifts the capacitance. The -55°C to 125°C operating range covers the full industrial temperature envelope and the lower end of automotive under-hood ambient. At the cold end, the ESR rises by roughly 2× to 3× from the 25 °C value — a factor to budget in a cold-start circuit where the capacitor sees high ripple at low temperature.
D-case 2917 footprint — board-fit and sourcing notes
This is the standard D-size tantalum footprint shared across multiple manufacturers — the land pattern is defined in the JCET / EIA standard and requires no pad geometry adjustment when swapping between AVX, Kemet, or Vishay D-case parts. Molded construction means the capacitor body is encapsulated in a solid epoxy case with a conformal coat over the anode and cathode terminations. The molded package provides mechanical protection during pick-and-place and reflow, but the moisture sensitivity level (MSL) is typically 3 — a bake step is needed before reflow if the shelf life in the moisture-barrier bag has been exceeded. Tape & Reel packaging is standard for automated assembly.
Active lifecycle — no imminent EOL risk
The product status is Active, meaning KYOCERA AVX continues to manufacture this part without a published end-of-life notice. Sourced to order through independent distribution channels. No stock-holding claim is made — the supply posture is quoted per RFQ.