6.8 µF, 20 V, 2.6 Ohm ESR — bulk decoupling for a 20 V rail
The TAJT685K020RNJ is a molded tantalum capacitor from the TAJ series, rated at 6.8 µF with ±10% tolerance and a 20 V DC voltage rating. The 2.6 Ohm ESR is the key parameter for ripple current handling — at a given ripple current, the ESR determines the internal power dissipation and temperature rise. For a 20 V rail, this part provides bulk decoupling where the ripple current stays within the capacitor's thermal limits.
The part is RoHS compliant per the General Purpose feature designation.
Surface-mount 1411 (3528 Metric) — T case code
The capacitor is supplied in a surface-mount 1411 (3528 Metric) case, manufacturer size code T. Dimensions are 3.50 mm x 2.80 mm with a seated height of 1.20 mm max.