110 mOhm ESR — the ripple-handling spec that matters
The TPSC476M016S0110: The 110 mOhm ESR is the key performance number for this 47 µF tantalum capacitor. In a switching-regulator output filter, that ESR sets the ripple voltage amplitude and the internal self-heating. A 110 mOhm part is a moderate-ESR choice — it will handle a few hundred mA of ripple current before the internal temperature rise becomes a derating concern, which is typical for a 16 V rated part in a C case.
KYOCERA AVX continues to manufacture the TPS series in this C case size.
Molded case, C size — footprint and board fit
Molded case in the manufacturer C code, which maps to the 2312 (6032 Metric) footprint. Board dimensions are 6.00 mm x 3.20 mm with a seated height of 2.80 mm max. The molded construction gives consistent dimensions for pick-and-place and a flat top for vacuum nozzle pickup.
The 16 V rating at 125 °C should be derated per MIL-PRF-55365 guidelines — typically 50 % derating for tantalum capacitors in high-reliability designs, meaning a 50 % voltage derating to 8 V maximum applied voltage at elevated temperature.