47 µF molded tantalum — bulk decoupling for harsh environments
The 200 mOhm ESR at 100 kHz keeps ripple heating manageable in power-supply filtering and hold-up capacitor roles.
ESR and thermal budget at the bench
At 200 mOhm ESR, the self-heating from ripple current at 100 kHz is 0.2 × I² — for a 1 A ripple, that is 0.2 W dissipated inside the case. In the 2312 (6032 Metric) body, that heat conducts through the solder pads into the board copper; a solid ground-plane connection under the capacitor keeps the internal temperature rise below the 125°C ceiling. The molded case is more rework-friendly than conformal-coated tantalums — the epoxy body withstands hot-air dwell at 260°C peak without cracking, as long as preheat stays below 150°C to avoid thermal shock to the sintered anode.