Lightning surge protection for Ethernet and WAN/LAN equipment, switching systems, and computers

Littelfuse has introduced the SLVU2.8-8 Series 2.8V, 30A TVS Diode Array (SPA Diodes), designed to protect low voltage CMOS devices from damage caused by ESD and lightning-induced transients. When compared to similar market solutions, SLVU2.8-8 Series provides circuit designers with 25 percent higher power handling capability, which offers more overhead to electrical threats. It also provides 57% lower capacitance than other solutions, which helps preserve signal integrity and minimise data loss.

Typical applications for the SLVU2.8-8 Series include protection of 10/100/1000 Ethernet equipment; WAN/LAN equipment; switching systems; desktops, servers, and notebooks; analog inputs and base stations.

“A compensating diode is located in series with each low voltage TVS diode to present a low loading capacitance to the line being protected,” said Tim Micun, product manager for the TVS Diode Arrays line. “These AEC-Q101 qualified device can safely absorb repetitive ESD strikes at ±30kV and dissipate up to 30A with very low clamping voltages.”

All SLVU2.8-8 Series TVS Diode Arrays offer these key benefits:

  • With 25 percent more power handling capability than similar market solutions, they provide more overhead to electrical threats.
  • With capacitance of just 2.6pF per line, which is 57%lower than other solutions, they help preserve signal integrity and minimise data loss while offering a more robust device against electrical threats.
  • Enhanced ESD capability (±30kV contact, ±30kV air) exceeds the highest level of the IEC 61000-4-2 standard (±8kV), providing maximum reliability for equipment during installation and servicing.
  • Low dynamic resistance (RDYN) of 0.3? provides the optimal clamping voltage for sensitive chipsets, protecting them from catastrophic failure and maximising system up time and reliability. 

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