470 µF at 2.5 V — the ESR drives the ripple budget
The TAJF477K002RNJ: This KYOCERA AVX TAJ series molded tantalum capacitor delivers 470 µF ±10% at 2.5 V rated voltage, with a 300 mOhm ESR at 100 kHz. That ESR figure is the first number to check when sizing the ripple current on a low-voltage rail — a 470 µF cap with 300 mOhm ESR dissipates about 0.5 W at 1.3 A ripple, which is within the molded case's thermal limits if the board has any airflow. The 2312 (6032 Metric) surface-mount package uses the standard F case code, so the footprint is shared across the TAJ F-size range. The 2.00 mm seated height keeps it usable on tight mezzanine stacks.
125°C endurance — where this cap fits
Rated for 2000 hours at 125°C, the TAJF477K002RNJ operates across -55°C to +125°C. The molded case construction is general-purpose — no low-ESR or high-reliability screening is specified, so for mission-critical applications you will want to review the manufacturer's surge-current test data and derate the applied voltage per MIL-PRF-55365 guidelines.
Active production — no LTB on the horizon
Listed as Active product status by KYOCERA AVX.