The 3-1478978-1 is an SMA right-angle PCB socket receptacle designed for RF connectivity applications. This RF connector features an SMA jack configuration without snap-lock mechanism, optimized for printed circuit board mounting in a right-angle orientation. The connector is EU RoHS/ELV compliant, ensuring environmental and regulatory compliance for modern electronic systems. It is commonly used in RF and coaxial applications where space-constrained right-angle connections are required, such as wireless communications, test equipment, and industrial RF systems.