The ESD8x2 devices are ESD diodes which provide a path to ground for dissipating transient voltage spikes, such as ESD or surge on signal lines and power lines. Connect the devices in parallel to the down stream circuitry they are protecting. As the current from the transient passes through the ESD device, only a small voltage drop is present across the diode. This is the voltage presented to the protected IC. The low R_DYN of the triggered ESD device holds this voltage (V_CLAMP) to a safe level for the protected IC. For more information on how to properly use this device, refer to the ESD Packaging and Layout Guide.