An ESD Protected Area (EPA) provides a controlled environment where grounding, conductive materials, and environmental controls work together to prevent electrostatic discharge damage to sensitive electronic components. This guide explains how to design and maintain an ANSI/ESD S20.20-compliant EPA, covering workstation setup, flooring, signage, compliance testing, and the critical role of precise humidity control in preventing static generation

Electrostatic discharge can occur through several different pathways, each posing unique risks to sensitive electronic components and manufacturing equipment. This guide explains the three primary ESD discharge models—Human Body Model (HBM), Charged Device Model (CDM), and Machine Model (MM)—how they differ, where they occur in real-world facilities, and why maintaining proper humidity levels helps reduce the risk across all three.

Industrial static control can be achieved by neutralizing existing charges with ionizing equipment or preventing charge buildup through environmental humidity control. This guide compares how both approaches work, where each performs best, their maintenance and operating requirements, and why maintaining stable humidity often provides the most effective long-term solution for facility-wide ESD prevention.

Electrostatic discharge testing verifies whether electronic equipment can withstand real-world static electricity events without malfunction or performance loss. This guide explains the IEC 61000-4-2 testing procedure, required equipment, contact and air discharge methods, test severity levels, and how immunity testing supports effective ESD prevention through grounding, environmental controls, and precise humidity management.