How to Choose ESD Blister Tray: A Guide for Beginners

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How to Choose ESD Blister Tray: A Guide for Beginners.

1. What is an ESD blister tray?

An ESD blister tray is a type of packaging material used to store and transport sensitive electronic components that are susceptible to electrostatic discharge (ESD). It is designed to provide protection against ESD by dissipating static charges and maintaining a controlled environment that prevents damage to the components.

2. What factors should be considered when choosing an ESD blister tray?

When choosing an ESD blister tray, several factors should be taken into consideration, including the type and size of the electronic components being packaged, the level of protection required, and the mode of transportation. Other important factors include the tray material, color, and design, as well as the cost and availability of the tray.

3. What materials are commonly used to make ESD blister trays?

ESD blister trays are typically made from materials that are conductive or dissipative, such as conductive plastic, static dissipative (SD) plastic, or metal. Conductive plastic has the highest level of electrical conductivity and is typically used for packaging highly sensitive components. SD plastic, on the other hand, has lower electrical conductivity and is suitable for packaging less sensitive components.

4. What is the difference between a conductive and a static dissipative (SD) plastic tray?

Conductive plastic trays have a surface resistance of less than 10^4 ohms/square, which means they can quickly drain static electricity and prevent ESD from occurring. SD plastic trays have a surface resistance of between 10^5 and 10^11 ohms/square, which means they provide a slower rate of static dissipation but are still effective at preventing ESD.

5. How is the size of an ESD blister tray determined?

The size of an ESD blister tray is typically determined by the size, shape, and number of electronic components being packaged. It should be large enough to provide adequate space for the components, but not so large that the components move around during transit. The tray design should also be optimized for the specific type of component being packaged to ensure the highest level of protection.

6. What color should an ESD blister tray be?

ESD blister trays are available in a variety of colors, but the most common color is black. This is because black has the most effective level of contrast with the bright colors of electronic components, making them easier to see and reducing the likelihood of errors during assembly and testing. Other colors, such as blue and clear, are also available, but they are less commonly used.

7. How is the cost of an ESD blister tray determined?

The cost of an ESD blister tray is determined by several factors, including the material, size, design, and quantity ordered. Conductive plastic trays are typically more expensive than SD plastic trays because of their higher level of conductivity. Customized designs and large quantity orders can also reduce the cost per tray. However, it is important to remember that the cost of an ESD blister tray should never be compromised at the expense of component protection.

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