Advanced dataline TVS provide ‘exceptional’ protection

New to Diodes Incorporated’s line-up is the advanced dataline transient voltage suppressor (TVS).  The DESD3V3Z1BCSF-7 is designed to provide exceptional TVS/ESD protection to the high-speed input/output ports of advanced systems-on-chips (SoCs) featuring differential signal line running at 5 GHz and beyond. The DESD3V3Z1BCSF-7 suits high-speed interfaces such as USB 3.1/3.2, Thunderbolt(TM) 3, PCI Express3.0/4.0, HDMI 2.0a, and DisplayPort(TM) 1.4.

Modern SoCs are typically manufactured on advanced CMOS process nodes, which can make them more susceptible to transient voltages and electro-static discharges appearing at the input/output ports. Because of the higher than desired input channel capacitance, traditional TVS devices can degrade high-speed signals as they travel between connectors at the boundary of the adopting system and the input/output ports of SoCs.

The DESD3V3Z1BCSF-7 has been developed using Diodes’ advanced in-house processes to achieve ultra-low input channel capacitance (0.175pF typical), low dynamic resistance, low trigger/holding/clamping voltages, and is assembled in a state-of-the-art package with ultra-low capacitance.

Dr Timothy Chen, division director, Diodes Incorporate, states that the exceptionally low insertion loss means the device can meet the signal integrity requirement of high-speed interface standards such as USB 3.1/3.2 and Thunderbolt 3.

“As advanced interfaces such as USB Type-C become widely adopted, protecting the ports of advanced SoCs with multi-gigahertz bandwidth will become more imperative,” he said.  “To ensure reliable operation of these SoCs and the USB Type-C ports, the need for an incredibly low profile TVS able to provide a high level of protection without impacting the integrity of the high-speed signals is paramount.”

In addition to its ultra-low input capacitance, the DESD3V3Z1BCSF-7 is said to provide exceptional ESD protection that meets IEC61000-4-2 requirements of up to 8kV air and contact. It offers a combination of clamping voltage (VCL = 4.5V typical for IPP = 3A), breakdown voltage (VBR = 9V maximum), and reverse standoff voltage (VRWM = 3.3V maximum), while peak-pulse power dissipation (PPP) is 25W over the short-circuit waveform of 8/20 microseconds.

The DESD3V3Z1BCSF-7 is supplied in the compact chip-scale X2-DSN0603-2 package, measuring 0.6mm x 0.3mm x 0.3mm.

Latest News from Softei

This news story is brought to you by, 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 yourself informed on the latest technology news and new products from around the globe. Simply click this link to register here: Softei Registration