bisco industries Blog

What is a PLCC Socket?

PLCC Socket Description

Plastic leaded chip carriers (PLCC) sockets are a type of chip carrier used to form connections between integrated circuits (ICs) and printed circuit boards (PCBs).

PLCC sockets typically have a rectangular plastic housing with connections along all four edges of the rectangle. To form secure connections PLCC sockets utilize J-leads which derive their name from fact that the leads are bent under and around the plastic housing. During installation PLCC sockets are soldered to the PCB and then the chip is inserted into the PLCC socket. Chips can be exchanged or removed using a specialized tool called a PLCC extractor.

PLCC Socket Configurations

All PLCC sockets meet JEDEC industry standards MO-047 or MO-052 which define lead spacing and sizing. Nonetheless, there are several configuration options for PLCC sockets. Perhaps most significant is the mounting style. PLCC sockets are available in both surface mount (SMT) and through hole (THT) configurations. As the name implies SMT PLCC sockets are mounted directly on the surface of the PCB. In contrast, THT PLCC sockets are mounted by inserting leads in pre-drilled holes on the PCB and soldering them to the opposite side.  

Top PLCC Socket Manufacturers

  • 3M
  • Adam Tech
  • Amphenol FCI
  • Mill-Max
  • Samtec
  • TE Connectivity

Learn More About PLCC Sockets

Manufacturers such as Mill-Max and Adam Tech offer catalogs that provide an array of technical information to help users configure PLCC sockets for their applications. In addition to general manufacturer documentation, bisco industries offers a team of product specialists to answer any questions about PLCC sockets you may have. Click here to contact a bisco product specialist.

What is Heat Shrink Tubing?

Heat Shrink Tubing Description

Heat shrink tubing (heatshrink) is plastic tubing used to protect cables and wires from harsh environments. When heat is applied to the tubing, it shrinks in diameter and length causing the tubing to tightly wrap around the inserted wire(s).

Heat Shrink Tubing Animation

Heat Shrink Uses

While the primary function of heat shrink tubing is to protect wires from harmful elements like oil and dust there are several other functions and benefits. Heat shrink tubing is also utilizied to insulate wires, bundle wires together, color-code wires for organization, relieve strain and stress on cables and neatly terminate the ends of braided sleeving.

Heat Shrink Sizing

Heat shrink tubing is available in many sizing options. Depending on the manufacturer, the shrink rate may be stated as a ratio or percentage. For example heat shrink tubing with a shrink ratio of 3 to 1 will shrink to one third of the original diameter. The expanded (original) diameter of the heat shrink should be 20-30% larger than thickest portion of of the application.

Heat Shrink Tubing Manufacturers

Heat shrink tubing was first invented in the late 1950’s by Raychem Corporation founder, Paul Cook. Today there are countless options available from many different manufacturers. Leading manufacturers include:

  • 3M
  • HellermannTyton
  • Alpha Wire
  • Panduit
  • Dunbar
  • Essentra (formerly Richco)
  • Thomas & Betts
  • Molex
  • TE Connectivity (Raychem)
  • Qualtek

Learn More About Heat Shrink

Selecting heat shrink tubing can be an overwhelming process but there are many resources available help guide users to the right solution. These resourses include Alpha Wire’s heat shrink tubing brochure and Panduit’s heat shrink selection guide . bisco industries’ team of product specialist are also standing by to assist you with any quesitons you may have. Email us here or call 1-800-323-1232.

bisco and Fast-Cor attend the 2015 National Industrial Fastener & Mill Supply Expo in Las Vegas

Last week, 10 team members from bisco industries and their sister-company Fast-Cor participated in the 35th National Industrial Fastener & Mill Supply Expo in Las Vegas, NV.  The show aims to connect manufacturers and master distributors of industrial fasteners, precision formed parts, fastener machinery & tooling and other related products. The show officially opened on Thursday, October 22nd and ran two full days of demos and networking.  This year’s show was held at the Sands Expo Center and proved to be a successful trip for all members the bisco and Fast-Cor team.

Supply Partner Meetings

Our meetings with our supply partners gave our team a great chance to touch base on the year’s progress and any upcoming product launches and events.  One exciting update from manufacturer, RAF Electronic Hardware was the announcement of a new line of standoffs certified to NAS specifications. Many of bisco’s supply partners also exhibited at the show including 3M, HOLO-KROME, Micro Plastics, Lyn-Tron, A. Raymond Tinnerman, and Unbrako.

Leveraging Manufacturer Relationships for Our Customers

bisco leverages our strong relationships with these and many other manufacturers to provide our clients with the best pricing, availability, and access to custom manufacturing services.  Are you looking for specialized fasteners and hardware? Visit biscoind.com to get pricing and availability on specialty fasteners and hardware at the click of a button.

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