New 3.3V / 15A TVS diode arrays protect smartphones, tablets and other portables

Littelfuse has introduced the SP3312T Series 3.3V, 15A TVS diode array (silicon protection array (SPA) diodes), which integrates four channels (two differential pairs) of low capacitance diodes to protect sensitive I/O pins from damage due to lightning-induced surge events and electrostatic discharge (ESD) protecting products such as smartphones, tablets and other portables. When compared to similar market solutions, the SP3312T Series provides circuit designers with 71 percent lower capacitance solution than other devices, which helps preserve signal integrity and minimize data loss. It also provides up to 150 percent higher power handling capacity than competing solutions. This robust device can safely absorb up to 15A per IEC 61000-4-5 (tp=8/20µs) without performance degradation and a minimum ±30kV ESD per IEC 61000-4-2. Targeted applications include 10/100/1000 Ethernet, LAN/WAN equipment, home automation and security, which benefits from the SP3312T superior clamping performance in a space-saving 2.0 x 1.0mm µDFN-08 package with a typical height of 0.4mm ultra fast-acting silicon-based ESD protection, designed to shunt transient voltage events at a level just above standard operating voltages provides a superior choice when compared to existing solutions, says the company. “The SP3312T Series offers a compelling alternative to other market solutions for ESD and surge protection on gigabyte Ethernet ports,” said Tim Micun, product manager, TVS Diode Arrays line. “Their extremely low capacitance allows greater flexibility in printed circuit board design and simplifies compliance with the industry’s go/no-go eye diagram testing, which helps take the worry out of protecting gigabyte interfaces.”