40 mOhm ESR — low-impedance bulk decoupling
The TPME227K016H0040: The 40 mOhm ESR on this 220 µF, 16 V molded tantalum capacitor means it handles ripple current with lower self-heating than standard tantalum parts that typically run 100–300 mOhm in this case size. For a 12 V rail feeding a switching regulator, the 40 mOhm ESR keeps the output ripple voltage under 10 mV at 1 A load transient — the capacitor absorbs the AC component without excessive temperature rise.
The TPM series is a standard molded tantalum line with broad distribution coverage.
2917 (7343 Metric) — standard footprint, reflow-ready
The 2917 (7343 Metric) case size with dimensions 7.30 mm x 4.30 mm and seated height 4.30 mm is a common tantalum footprint.