Hybrid protection module guards Ethernet ports from sustained overcurrent and overvoltage

Littelfuse has introduced the first of a series of TVS Diode Arrays (SPA Diodes) designed to protect two lines of 10/100/1000BaseT Ethernet ports from damage due to sustained overcurrent and overvoltage. Through-package routing permits the SP4031 Series Hybrid Protection Module’s circuitry to protect an Ethernet PHY chip from damage due to events such as ESD and lightning-induced surge. The series’ low loading capacitance (just 2.5pF per I/O) and high surge handling capability (up to 35A) make it perfect for protecting Ethernet and other high-speed data interfaces. Typical applications for the series include 10/100/1000BaseT Ethernet, (ITU K.21 Basic level compliance), as well as integrated magnetics, or ADSL/VDSL/G.fast modem, and Industrial Ethernet and smart TVs. “The SP4031 Series Hybrid Protection Module combines some of the best products from our Electronics Business Unit with some of the best products from our Semiconductor Business Unit to create a hybrid, known-good solution for the Ethernet protection designer,” said Tim Micun, business development manager, TVS Diode Arrays (SPA Diodes) at Littelfuse. “Its’ fast response protects Ethernet and other high-speed interfaces faster, which means protecting better because long-term exposure to overvoltage or overcurrent shortens chip life.”