AEC-Q200 qualified for under-hood and chassis-mount electronics
The TAJD106K025TNJV: This TAJ-series molded tantalum carries AEC-Q200 qualification, meaning it has passed the stress tests for temperature cycling, humidity bias, and mechanical shock defined by the automotive passive-component standard.
10 µF, 25 V, D-case — decoupling and bulk storage in tight board spaces
The 10 µF capacitance at 25 V rated voltage provides enough charge storage for local decoupling of power rails up to 12 V or as a filter capacitor in automotive sensor modules. The D-case (2917 / 7343 metric) footprint — 7.30 mm x 4.30 mm with a seated height of 3.10 mm — fits the standard tantalum land pattern used across many automotive ECU designs, making it a drop-in replacement for existing D-case positions.
ESR and ripple current — what the 1.2 ohm figure means for your filter
The 1.2 ohm ESR at 100 kHz is a moderate value for a 10 µF/25 V D-case tantalum. At a typical ripple current of a few hundred milliamps, the self-heating will stay within the package's thermal limits, but if the capacitor is used as a bulk input filter for a switching regulator drawing 1 A ripple, the I²R losses will raise the internal temperature above ambient and shorten the 2000-hour life. Derate for ripple current per the manufacturer's application notes.