The TPD3E001DRYR is a three-channel steering (rail-to-rail) TVS diode array from Texas Instruments, built to shunt ESD and short-duration overvoltage transients on signal or data lines. With a peak pulse power rating of 90 W and a breakdown voltage minimum of 11 V, it clamps fast enough to protect downstream ICs on general-purpose I/O, USB, or audio paths.
Package and footprint — 6-UFDFN, 1.45 x 1 mm body
Housed in a 6-UFDFN package (TI calls it 6-SON, 1.45 x 1 mm), this is a surface-mount device meant for tight layouts where board area is at a premium. The three unidirectional channels map to three I/O lines plus a common rail connection — no pinout detail appears in this listing, so pull the datasheet for the exact pin-to-channel assignment before layout. Mounting is surface mount only; the small body makes hand-soldering tricky without a hot-air station, but reflow with a standard profile works fine.
The general-purpose application tag means it's not qualified to AEC-Q100, so if you need automotive-grade ESD protection, look for a part with explicit AEC-Q101 or AEC-Q200 certification.