Packaging Forms For Electronic Components

Four Main Packaging Forms For Surface Mount Components

Surface mount components are packaged in four primary forms: tape, tube, tray, and bulk. Each form is selected based on production volume, feeder type, component size and shape, and assembly line efficiency. Tape packaging is standard for high-volume production and covers most ICs except QFP, PLCC and LCCC. Tube packaging suits small batches and mixed component types. Tray packaging is used for larger or more fragile devices. Bulk packaging is rarely used due to the need for manual pick-up or re-packaging.

Anti Static Shipping Tubes

When To Use Anti Static IC Tube Packaging

Anti-static IC tube packaging is recommended for low-volume or prototype production, especially when multiple component types are handled in small quantities. It is suitable for rectangular chip resistors, capacitors, small special-shaped devices, and components that do not fit well in standard carrier tape. The tube maintains component orientation and protects against electrostatic discharge during handling and transport.

How Tube Packaging Works In SMT Assembly

Components are arranged in a single direction inside a plastic tube. Plastic pins, nails, rubber end plugs, or other stoppers are inserted at both ends to secure the tube in the SMT feeder. When the tube is pressed, one component is released at a time. The tube is removed from the SMT machine after the component is placed, and the process repeats. This method ensures consistent feed and alignment for small batch runs.

Material And Design Considerations For IC Tubes

IC tubes are made from plastic materials such as PVC, PS/HIPS, PC, PETG, or ABS. The tube profile is extruded to match the device dimensions. Critical dimensions are controlled within 5 mils on PVC tubes. The anti-static property is achieved through surface treatment or built-in additives. The tube must be compatible with the feeder’s pressure and the component’s size to prevent jamming.

Limitations Of Tube Packaging

Tube packaging has a lower component capacity compared to tape and reel. The cost per unit is higher, and the mounting speed is slower than tape-based systems. If the feeding pressure is uneven, components may stick in the narrow tube. The tube must be handled carefully to avoid deformation, which can cause feed issues or damage to the device.

Why Tube Packaging Is Preferred Over Trays For Small Batches

For surface mount integrated circuits, tube packaging is less expensive than tray packaging. Trays require more material and space, and are harder to reconfigure for different component types. Tubes allow quick changeover between devices, making them ideal for mixed or low-volume production where tooling flexibility is essential.

Packaging Materials And Their Use Cases

Plastic tubes are used for chip resistors, capacitors, diodes, transistors, crystal oscillators, small ICs, and other surface mount components. The tube is sealed at both ends with plastic pins, rubber end plugs, or nails. The choice of closure depends on the tube profile and feeder design. The packaging must be compatible with the SMT machine’s feeding mechanism.