100 µF, 20 V, 100 mOhm ESR — bulk decoupling for 5–12 V rails
The TPSE107K020R0100: The 100 mOhm ESR (equivalent series resistance) is the figure that matters for power rail filtering — it sets the ripple current rating and the self-heating under load. For a 5 V rail drawing 1 A of ripple, that ESR keeps the dissipation under 100 mW, well within the part's thermal budget. The molded epoxy case resists moisture ingress better than dipped tantalums, making it a fit for boards that see condensation or conformal coating. The 2917 (7343 Metric) footprint with size code E matches the standard tantalum chip layout — no pad redesign needed if you're replacing a similar part.
Thermal range and board fit
The 4.30 mm seated height keeps it under low-profile components on a densely populated board. Surface-mount package (2917) with tape-and-reel packaging — standard for pick-and-place assembly. The ±10% tolerance is tight enough for most decoupling and bulk storage roles; for timing or filter circuits that need tighter, you'd step to a ±5% or ±1% part.
Active lifecycle — no obsolescence watch needed
No minimum order constraints beyond standard packaging multiples.