Q.What is IPC-620 CLASS-3?

IPC/WHMA-A-620 is an international standard that regulates manufacturing requirements and acceptance criteria for wire and harness assemblies. This standard was jointly developed by the IPC (International Electronics Industry Federation) and the WHMA (Wire Harness Manufacturers Association) to ensure the high quality and reliability of wire harness assemblies.

Class 3 is a classification within the IPC/WHMA-A-620 standard for products used in high-performance and harsh environments. These products require reliable operation in critical moments and cannot tolerate equipment downtime. Typical applications include life support systems and other critical systems. This standard describes in detail the materials, methods, testing, and acceptance criteria that ensure the quality of crimped, mechanically fixed, and welded connections. It also includes related assembly activities such as lashing and securing of cables and harnesses.