15 µF, 35 V, 250 mOhm — the parametric corner that decides the fit
The TPSY156K035R0250: That ESR figure is the one that matters for bulk decoupling on a power rail — a 250 mOhm part drops 250 mV at 1 A ripple, so if your rail budget is tight, you want this number, not a generic 500 mOhm cap.
Temperature range and deployment context
Rated for -55°C to 125°C operating temperature, this cap sits in the military-temperature band. That means it works in an engine-bay ECU that sees 105°C ambient, or in a satellite power bus that cycles between cold-soak and internal dissipation — the tantalum dielectric holds its capacitance across that span better than an electrolytic. The molded case is the standard for surface-mount tantalums — it gives consistent board standoff and the epoxy body handles reflow without cracking. No conformal-coat compatibility issues; the case is already sealed.
Sourced to order through independent distribution; availability and current pricing confirmed at RFQ. No stock-holding claim — the quote tells you the real lead time.