68 µF, 16 V — bulk decoupling for 12 V and 5 V rails
The TPSX686K016R0150: This capacitance and voltage combination suits it for bulk decoupling on 12 V input rails, 5 V output rails, or hold-up storage in DC-DC converter stages where the ripple current stays within the 150 mOhm ESR budget.
ESR and ripple — what 150 mOhm means for the circuit
The 150 mOhm equivalent series resistance (ESR) sets the self-heating under ripple current. For a 68 µF capacitor on a 500 kHz buck converter output, the ripple current through the ESR generates I²R losses that raise the internal temperature above ambient. The 125°C rated ceiling gives headroom, but the actual ripple current must be derated per the manufacturer's curve to stay below the maximum core temperature. A solid thermal connection through the pad to an inner-layer ground pour drops the thermal resistance significantly compared to a standalone pad.
Tape & Reel — ready for high-volume reflow
Supplied on Tape & Reel, the capacitor feeds directly into a pick-and-place machine for reflow soldering. The surface-mount 2917 footprint is a standard JEDEC outline, so the PCB land pattern is well-documented and the part mates with common solder paste stencil apertures. Store the reels in a dry cabinet below 30°C / 60% RH to prevent moisture absorption in the molded epoxy body.