The TAJD226M016RNJ is a 22 µF molded tantalum capacitor rated for 16 V, with an ESR of 1.1 Ohm. That ESR sets the ripple current rating — at 100 kHz the capacitor can handle roughly 1.2 A ripple before self-heating becomes a concern. The 16 V rating gives 33% derating on a 12 V rail, which is standard practice for tantalum to avoid surge failures. No derating needed at 125°C — the voltage rating is already conservative.
Footprint and layout — 2917 D-case
The 2917 (7343 Metric) D-case measures 7.30 mm x 4.30 mm with a seated height of 3.10 mm. That footprint is industry-standard for 22 µF tantalums in this voltage class — it lands on the same pads as any other D-case 7343 part, so swapping in a different brand or series doesn't require a board spin. The molded case is general-purpose and RoHS-compliant.
KYOCERA AVX lists the TAJD226M016RNJ as Active.