The TPAZ1143-04F with DFN2510 ESD Protection Devices ROHS manufactured by TECH PUBLIC is a series of ESD (Electrostatic Discharge) protection devices that are designed to protect electronics from electrostatic discharge. The TPAZ1143-04F is an Opto-Coupled ESD Suppressor, which has two terminals connected in series, and is specified to handle up to 8.3 kV of ESD. The device is contained in a small header-style package, measuring 2.5mm x 1mm (DFN2510), and meets the ROHS standard for environmental safety. The device can be used to protect any electronics with exposed contacts from the damaging effects of ESD, including portable electronics, PCs, printers, and other electronic products.