47 µF bulk decoupling — the ESR tells the story
The TPSW476M010R0125 is a 47 µF molded tantalum capacitor from the TPS series, rated at 10 V with a 125 mOhm ESR. The 10 V rating calls for derating: for tantalum capacitors, staying at or below 50% of rated voltage is the standard reliability practice. That puts the practical operating ceiling at 5 V — a 3.3 V rail has comfortable margin; a 5 V rail is at the limit and should be reviewed against the application's surge and transient profile.
Temperature grade and case — board-fit reality
The -55°C to 125°C operating range covers the full military temperature envelope — this capacitor holds its spec across automotive under-hood, aerospace, and outdoor telecom ambient conditions. In a filter or regulator compensation network, the wide capacitance spread means the designer should simulate the worst-case corner — the actual capacitance at 20% low shifts the pole frequency, which can affect loop stability or ripple attenuation.