The 22µF 0805 at 16V — SMPS filter selection axis
The EMK212BBJ226MG-T is a 22 µF multilayer ceramic capacitor in the 0805 (2012 metric) footprint, rated 16V with an X5R temperature coefficient. X5R means the capacitance drifts within ±15% across the -55°C to 85°C operating window — acceptable for bulk decoupling on switching supplies where absolute precision matters less than ESR and volume. The 22 µF at 16V is the sweet spot for input and output filter caps on 5V and 12V rail point-of-load converters, sitting above the 10µF most designs budget for first-stage LC filtering. At 1.25mm maximum thickness, the part sits below the typical 1.6mm ceiling for this foot print — important when the cap is stacked under a BGA or seated near a chassis wall where clearance is tight. The 0.079 by 0.039 inch (2.00 by 1.00 mm) land pattern matches standard 0805 pad geometry, so it drops into any layout that already accommodates this case size without footprint rework.
Packaging and tolerance — the reel vs cut-tape decision
The ±20% tolerance is the BVE on the tolerance band — for SMPS filtering, the ripple current and switching frequency matter more than hitting the nominal capacitance exactly, so the tolerance is not a constraint. If you are running high-volume pick-and-place, reel is the default. Cut tape is the call when you are building a small panel, doing a proto spin, or the reel qty (typically 4,000 per) exceeds what your build will consume before the date code ages.
Active status and sourcing posture
No NRND notice or EOL date appears in the current ledger — the part remains in standard production and is supported for new designs.