10 µF, 35 V, 125 mΩ — bulk decoupling for a 35 V rail
The TPSD106M035S0125: This is a 10 µF molded tantalum capacitor rated at 35 V with a 125 mΩ ESR, built for bulk decoupling and filtering on a 35 V supply rail. The 2917 (7343 Metric) case size (7.30 mm x 4.30 mm footprint, 3.10 mm seated height) fits standard bulk decoupling pads on a 4-layer or 6-layer board.
Sizing the ESR for ripple current and thermal budget
The 125 mΩ ESR is the key thermal parameter for this capacitor. At 35 V, the ripple current rating is set by the I²R loss in the ESR. The ±20% tolerance on the 10 µF capacitance means the actual value can range from 8 µF to 12 µF. For a filter cutoff frequency calculation, use the worst-case 8 µF to guarantee the corner frequency stays above the target. For bulk decoupling, the ESR dominates the impedance at resonance, not the capacitance spread.
