What is TAJT336M004RNJ?
It comes in a 1411 (3528 Metric) surface-mount package, also listed as 1210, with dimensions 3.50mm x 2.80mm and a seated height of 1.20mm.
Key Ratings and Fit
The 1.7 Ohm ESR (Equivalent Series Resistance) sets the self-heating and ripple-current ceiling — in a 4 V rail, the capacitor dissipates I²R losses, so keep ripple current below ~1.2 A to stay within the 125°C limit.
TAJT336M004RNJ carries an Active product status from KYOCERA AVX — it is in production and suitable for new designs.