The TPA2039D1YFFT: ROHS3 compliant per the listing — no exemption-based restrictions on the bill of materials for EU or similar markets.
Output power and supply rail fit
Rated 3.24 W into a 4 Ω load from a single channel — this is the maximum output power at the specified load impedance, so the amplifier suits small portable speakers, earbuds, or line-level driver stages where the load is known.
Housed in a 9-bump DSBGA (9-UFBGA) package — the 0.5 mm pitch and 0.9 mm x 0.9 mm footprint demand careful solder-paste stencil design and a clean thermal profile for reflow.
Protection features and temperature grade
Integrated short-circuit and thermal protection — the amplifier shuts down on over-temperature or output short, which reduces the risk of field failures in portable or enclosed designs.