What the 1 µF X7R rating means across temperature
The EMK107B7105KA-T: The X7R temperature coefficient specifies ±15% capacitance change across the full -55 to 125 °C operating window — not a drift floor but a drift ceiling, and that distinction matters for any node where you need the capacitor to hold its value against a known reference. For SMPS filtering, a 1 µF MLCC at 16 V sits well below its rated ceiling — the derating margin gives you headroom against DC-bias aging, which reduces capacitance further over the part's life, particularly above 85 °C.
0603 footprint and the 0.90 mm seated-height constraint
The 0.90 mm maximum thickness is tight — the part clears most standard stencil heights, but the land pattern must respect the 1.60 mm × 0.80 mm body and the pad-crown height during reflow to avoid tombstoning on the narrow 0603 land pads. Tape & Reel delivery suits high-volume pick-and-place; Cut Tape is the right call for first-article or low-volume builds where reel waste is disproportionate to the BOM quantity.
Single-source risk is real for any long-life program — the ±10% tolerance and X7R grade are common across competing 0603 1 µF 16 V parts, but substitution should be validated thermally and for DC-bias aging before the BOM line ships.