Why 680 µF at 18 mOhm ESR in a 2917 case matters for your rail
The TPME687M004R0018: This is a 680 µF molded tantalum capacitor rated at 4 V with an ESR of just 18 mOhm — the low ESR keeps ripple voltage in check on a 3.3 V or 1.8 V supply rail where bulk decoupling needs to absorb transient current without excessive heating.
Active production — no end-of-life clock ticking
No last-time-buy window to track. The TPM series is a general-purpose molded tantalum line, so there is no single-source risk from a niche qualification; multiple distributors carry it.
Package and footprint — 2917 (7343 Metric) on Tape & Reel
The 7.30 mm x 4.30 mm body with 4.30 mm seated height fits standard 2917 pads; the molded case provides mechanical stability during reflow.