Molded tantalum, 0.68 µF at 25 V — what the ESR means for your rail
The TPSA684M025R6000: This is a Molded tantalum capacitor from the TPS series, rated 0.68 µF with ±20% tolerance at 25 V. The 6 Ohm ESR (Equivalent Series Resistance) sets the self-heating under ripple current — for a 25 V rail, the ripple current capability is modest, so this part suits decoupling and filtering where the AC component is low, not high-frequency bulk bypass.
The product status is Active. KYOCERA AVX continues to manufacture this order code, so it remains available for new designs and production replenishment.
Temperature range and deployment fit
It is a fit for avionics, downhole instrumentation, satellite power buses, and engine-bay electronics where the ambient can exceed 105°C. The 1206 (3216 Metric) case is a common footprint — board layout matches standard tantalum land patterns.