Product Releases

TVS Diode Arrays from Littelfuse Provide 40 Percent Greater Protection

Mon, 07/22/2013 - 3:27pm
WDD Staff


Littelfuse (Chicago, IL) has introduced the SRDA3.3 Series TVS Diode Array – SPA Diodes. The SRDA3.3 Series integrates low-capacitance steering diodes with an additional zener diode to protect data lines against electrostatic discharge (ESD) and high surge events. The SRDA3.3 Series devices provide 40 percent greater protection without performance degradation than other available solutions. With up to 600W of power dissipation, these devices outperform similar market solutions by 20 percent in power handling capability. In addition, the low loading capacitance of 10pF (max) of the SRDA3.3 Series is 50 percent lower than other solutions, which makes it ideal for protecting telecommunications interfaces without sacrificing signal integrity. Applications include tertiary (IC side) protection of high-speed T1/E1/T3/E3 telecommunications data lines, xDSL interfaces, RS-232/RS-485 interfaces, 10/100 Ethernet interfaces and video lines. Features include:

  • Robust surge protection: Lightning, IEC61000-4-5, 35A (8/20µs), peak pulse power, 600W (8/20µs).
  • Low dynamic resistance (RDYN) of 0.5Ω.
  • Low capacitance of 8pF (typ) /10pF (max) from I/O to GND.
  • Enhanced ESD capability: ESD, IEC61000-4-2, ±30kV contact, ±30kV air.

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