This is a 4.7 µF molded tantalum capacitor rated at 10 V DC, in the B case (1411 / 3528 Metric). The ±20% tolerance is the standard tantalum grade; a tighter tolerance (e.g., ±10%) requires a different suffix. The 2000-hour endurance at 125°C means the capacitor is rated for continuous operation at that temperature, but derating the applied voltage to 50% or less of rated voltage (5 V or lower) is standard practice to improve reliability and reduce failure rate in high-temperature or high-vibration environments.
Surface-mount B case (1411 / 3528 Metric) — 3.50 mm x 2.80 mm footprint, seated height 2.10 mm max. No moisture sensitivity level (MSL) is listed, but tantalum molded caps are typically MSL 1 or 2a — confirm with the manufacturer for bake requirements before reflow if the floor life is exceeded.