Hybrid module protects Ethernet PHY chips
To protect sensitive PHY chips from damage due to electrostatic discharge (ESD) and lightning-induced surge events, Littelfuse has introduced the first of a series of TVS diode arrays (SPA Diodes). The SP4031 series hybrid protection modules are designed to protect two lines of 10/100/1000BaseT Ethernet ports from damage due to sustained over-current and over-voltage. Through-package routing permits the module’s circuitry to protect an Ethernet PHY chip from damage.
During a prolonged overvoltage event such as a power fault, the module will present a high impedance. The high impedance state will reset once the power fault event has ended. During a fast transient event, the component will clamp, protecting any downstream chipset from surge or ESD damage.
The SP4031 series’ low loading capacitance of just 2.5pF per I/O, and high surge handling capability of up to 35A, make it suitable for protecting Ethernet and other high-speed data interfaces, confirms Littelfuse. Typical applications for the SP4031 series hybrid protection module include 10/100/1000BaseT Ethernet, (ITU K.21 Basic level compliance), as well as integrated magnetics, or ADSL/VDSL/G.fast modem, industrial Ethernet and smart TVs.
The SP4031 series hybrid protection module is available in an SOIC-8 package in tape and reel format in quantities of 2,500. Sample requests may be placed through authorised Littelfuse distributors worldwide.
This story is brought to you by softei.com, the specialist site dedicated to delivering information about what’s new in the electronics industry, with daily news updates, new products and industry news.
To stay up-to-date, register to receive our weekly newsletters and keep informed of the latest technology news and new products from around the globe. Simply click this link to register here: softei.com
Readers can also register to receive the monthly newsletter from our sister site, weartechdesign.com. This is the only website dedicated to developers of wearable electronic products. Simply click this link to register: weartechdesign.com
We have a Fitbit to give away on both Softei.com and Weartechdesign.com! Register today to enter the competition to win a Fitbit at softei.com or weartechdesign.com.
