330 µF, 6.3 V, 45 mOhm — TPS series molded tantalum
The TPSD337M006Y0045: The 45 mOhm ESR (equivalent series resistance) is the key parameter for power-supply decoupling — it governs the ripple current handling and the self-heating under load. A lower ESR means less voltage ripple at the switching frequency and a cooler capacitor in a dense PCB layout. The molded case provides mechanical stability for automated pick-and-place and reflow soldering.
Temperature range and board-fit considerations
Rated for -55°C to 125°C operating temperature, this capacitor suits industrial and automotive environments where the ambient temperature near the power rail can exceed 85°C. The full temperature range is specified, not derated — the capacitance and ESR shift with temperature per the TPS series characteristic curves. The molded body is non-polarized, but the anode (+) is marked on the top surface — orientation matters for the PCB silkscreen.