Parametric fit for the BOM line
The TPSD335M050R0800 is a 3.3 µF molded tantalum capacitor in the TPS series from KYOCERA AVX, rated at 50 V with ±20% tolerance. The 800 mOhm ESR at 100 kHz is the figure that governs ripple current handling and self-heating in a power rail or decoupling application — a lower ESR means less temperature rise for the same ripple, which directly affects derating in high-frequency switching converters.
Temperature grade and environment
For a tantalum capacitor, the voltage derating factor recommended by the manufacturer typically doubles at the upper end — at 125°C the applied voltage should not exceed 2/3 of the rated 50 V to stay within the safe operating area and avoid field-failure risk from dielectric breakdown.
No special pad geometry beyond the standard 2917 land pattern is required, though a thermal relief on the anode pad helps during hand-solder rework.