The SLVU2.8-4BTG-S was designed to protect low voltage, CMOS devices from ESD and lightning induced transients.
There is a compensating diode in series with each low voltage TVS to present a low loading capacitance to the line being protected. These robust structures can safely absorb repetitive ESD strikes at ±30kV (contact discharge) per IEC61000-4-2 standard and each structure can safely dissipate up to 40A (IEC61000-4-5 2nd edition, tP=8/20μs) with very low clamping voltages.