PLCC Sockets

Plastic leaded chip carriers (PLCCs) are used in surface-mount technology where electronic circuits are produced, and components need to be mounted or placed directly onto a printed circuit board (PCB). The chip carrier is placed in a PLCC socket, which is either surface-mounted or features through-hole technology. A specialised tool called a PLCC extractor is needed to remove the chip carrier from the PLCC socket.

What are PLCC sockets used for?

PLCC sockets are used in surface-mount device (SMD) and surface-mount technology (SMT) applications. PLCC sockets made of heavy gauge copper alloy are compatible in high shock / high vibration applications. PLCC sockets made of rolled-leaf copper are useful in low-cost computer applications.

Types of PLCC sockets

The two primary categories of PLCC sockets are:

  • Surface-mount PLCC sockets, which are used in devices sensitive to heat from the reflow process. These allow for component replacement without redesigning or reworking the entire PCB.
  • Through-hole technology PLCC sockets are necessary when a device requires stand-alone programming with flash drives or memory devices. These are also beneficial for prototyping activities where wire wrapping is required.

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