Which class of ESDS devices is considered extremely sensitive?

Class 1 devices within the Electrostatic Discharge Sensitive Devices (ESDS) classification are deemed extremely sensitive to electrostatic discharge. These devices have a threshold of failure at a very low voltage, typically less than 100 volts. This extreme sensitivity means that even minimal electrostatic discharges can cause irreversible damage or degradation to their functionality.

Class 1 devices are often utilized in critical applications where reliability is paramount, such as in avionics systems and telecommunications, where the cost of failure can be extremely high. As a result, stringent handling and protection measures must be applied to prevent damage from static electricity, including the use of grounding straps, antistatic mats, and controlled environments.

In contrast, other classes like Class 2, Class 3, and Class 4 represent devices with progressively higher thresholds for static discharge tolerance, meaning they can handle greater voltages before experiencing failure, thus making them less sensitive than Class 1 devices. This distinction is crucial for technicians and engineers when storing, handling, and installing sensitive electronic components to ensure their reliability and performance in operational settings.