SP814x series TVS diode arrays (SPA® diodes) from Littelfuse integrate four or six channels of ultra-low-capacitance, rail-to-rail diodes, and an additional Zener diode, so they can safely absorb repetitive ESD strikes above the maximum level specified in the IEC61000-4-2 international standard (±8 kV contact discharge) without performance degradation. Their extremely low loading capacitance (1.0 pF (typ.) per I/O), lower series resistance than semiconductor-based devices, and fast response also make them ideal for protecting electronics with high-speed signal pins such as HDMI2.0, USB3.0, USB2.0, and IEEE1394.

Applications for the SP814x series include LCD/PDP TVs, external storage, DVD/Blu-ray players, desktops/servers, notebooks/tablets, set-top boxes, mobile phones, Flash memory cards, and digital cameras.

Features

• Low capacitance of 1.0 pF (typ.) per I/O
• Low leakage current of 25 nA (typ.) at 5 V
• Promotes high ESD immunity and superior protection [ESD, IEC 61000-4-2, ±22 kV contact, ±22 kV air discharge; EFT, IEC 61000-4-4, 40 A (t_P=5/50 ns); lightning, IEC 61000-4-5 2nd edition, 2.5 A (t_P=8/20 μs)]
• Small form factor μDFN packages (JEDEC MO-229)

Benefits

• Minimizes signal degradation or attenuation for high-speed data, giving engineers more signal margin in their designs
• Low leakage extends battery life and preserves signal integrity because excessive leakage can be seen as additive capacitance for a high-speed differential pair
• Permits manufacturers to achieve ESD protection beyond the maximum level stated in the IEC standard and protects against a multitude of other threats to ensure product reliability in the field
• Saves precious board space, simplifies the PCB layout, and enables protection in space-constrained applications like smartphones