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Yint Electronics' TSS (Semiconductor Discharge Tube) series provides professional surge protection solutions for communication ports. The product adopts a solid-state semiconductor structure, with precise breakdown voltage (VDRM range covering 20V to 500V) and nanosecond level fast response characteristics. Its unique low dynamic resistance (R_ON) can effectively clamp surge voltage to extremely low levels after conduction, capable of withstanding single or repeated surge impacts up to 100A (8/20 μ s waveform), while maintaining low line capacitance at the pF level to ensure data transmission integrity. This series of devices is particularly suitable for lightning and overvoltage protection of communication lines such as xDSL, RS-485/422, and security, providing high reliability secondary protection.