100 µF, 16 V, 100 mOhm ESR — the bulk-decoupling number
The TPSE107K016R0100V: The 100 mOhm ESR at 100 kHz is the figure that governs ripple current handling and transient response in a power rail — lower ESR means less self-heating and tighter regulation under load steps.
ESR and lifetime — what they mean for the rail
The 100 mOhm ESR at 100 kHz is the impedance the capacitor presents to switching ripple. For a buck converter switching at 500 kHz, this ESR determines the output ripple voltage: 100 mOhm times the inductor ripple current gives the ripple contribution. A lower ESR means less voltage ripple and lower internal dissipation, which directly extends the 2000-hour lifetime at 125°C. The TPS series is marked as General Purpose, meaning it is not optimized for low-ESR or high-reliability applications but suits standard decoupling and bulk storage roles where the 100 µF at 16 V fits the rail budget.
Sourcing and compliance for the BOM
The molded case is compatible with standard reflow profiles; no special handling beyond normal MSL precautions is required.
