Why the AEC-Q200 grade matters for your BOM
This one does.
33 µF, 10 V, 1.8 Ohm ESR — what the numbers mean on the board
33 µF at 10 V with ±10% tolerance gives you 30 µF minimum over temperature and voltage derating — enough bulk capacitance to stabilize a 3.3 V or 5 V rail feeding a handful of ICs. For a 100 mA ripple, expect 180 mV of ripple across the cap alone.
Temperature range and package — fit for harsh environments
That means it works in an engine bay ECU that sees 125°C under the hood and still holds capacitance down to -55°C during a cold start in Fairbanks. The B case code (1411 / 3528 Metric) is a common footprint — 3.50 mm x 2.80 mm, 2.10 mm seated height — and it's surface-mount, so it runs through a standard reflow profile. No through-hole hand-soldering on this line.
No official second-source or cross-reference is listed from KYOCERA AVX, but the TAJ series is widely used and functionally equivalent parts from other manufacturers exist in the same B case footprint.