The Bourns Model CD143A-SR05LC device offers robust ESD, EFT, and surge protection specifically designed for the external ports of portable electronic devices like cellphones, handheld electronics, and personal computers. This component provides a minimum ±8 KV Contact / ±15 KV Air Discharge per IEC 61000-4-2 standards. The device's compact size (2.80 mm x 1.20 mm) and SOT-143 package facilitate direct mounting onto FR4 printed circuit boards. It meets IEC 61000-4-2 (ESD), IEC 61000-4-4(EFT) and IEC 61000-4-5 (Surge) requirements, ensuring reliable protection against voltage transients.