100 µF at 20 V — bulk decoupling for 12 V rails
The TPSE107M020R0100: Rated 100 µF at 20 V, this molded tantalum gives 60 % voltage derating on a 12 V rail — a standard practice for tantalum capacitors to avoid field-failure from inrush or ripple spikes. The 20 V rating also covers 5 V rails with ample margin, making it a single BOM line for mixed-voltage designs. The 100 mOhm ESR (Equivalent Series Resistance) directly governs ripple current handling and self-heating. At 100 mOhm, the capacitor can absorb a ripple current of roughly 1.4 A RMS before hitting the 125 °C upper limit, which suits it for output filtering in DC-DC converters or input bulk storage in POL regulators. Capacitance shift over this range is typical for tantalum — expect about -10 % at -55 °C and +15 % at 125 °C relative to the 25 °C value.
The TPSE107M020R0100 is sourced through independent distribution channels with full lot traceability.