MC-803CFS Soft Conductive Foam Cushion for 803-Series Boxes

Conductive ESD Foam MC-803CFS for 803-Series Boxes

Conductive ESD foam MC-803CFS provides soft, compressible cushioning within an 803-series electronic-component packaging configuration. The pad has a listed 2.56 × 3.50-inch footprint and a nominal thickness of 0.22 inch. Its material is soft, flexible conductive open-cell urethane foam.

This product supplies one flat foam cushion. The MC-803C conductive box, additional cushions and custom component cavities are separate selections. Choose the foam according to the device and its handling requirements as well as the box series.

MC-803CFS Specifications

The footprint identifies this cushion. Skived foam has thickness variation; 0.22 inch is the nominal value. Define any required thickness limits with Malaster and verify the usable enclosure space and closed-pack fit for the selected device.

Custom Foam Options for Your Component

Malaster can review a different cushion thickness, a revised outline or an insert with component-specific cavities when the flat pad does not meet the application. Support areas, relief around sensitive features and access for loading or removal can be evaluated together.

Send the component drawing, current box or cushion part number, permitted contact areas and quantity required. Include the initial order quantity and expected repeat use so the material, design and manufacturing method can be considered together.

Use the custom foam insert specification guide to prepare the available information, then request a custom foam insert. If the surrounding box or packaging method is also undecided, request a complete packaging consultation.

Select the Foam for Its Job

Choose this option when the package needs compliant cushioning and conductive material contact. Its softer response should be evaluated at the intended compression, especially when the cushion touches a fragile package surface or provides lid retention.

CFS provides a softer contact surface than the firm CFF option. Both standard cushions have a nominal thickness of 0.22 inch, but their response under compression differs. Review the assembled height and closure when changing materials.

Associated Box and Other 803-Series Foam Choices

Review the MC-803C conductive box for the surrounding enclosure. The following products provide other foam choices in the same series. Select each layer for its intended function and confirm the complete arrangement before substituting materials.

A shared box-series label identifies related products; it does not establish the same foam response, electrical properties or compressed height. For another enclosure size, browse ESD box foam cushions.

Component Contact, Compression and Final Fit

Identify which device surfaces may touch the foam and which leads, terminals, connectors or other features require clearance. If lead penetration or electrical contact with conductive foam is intentional, specify that requirement separately so it can be reviewed against the device and handling process.

Consider the full closed-box arrangement: the lower support, the component, any device insert, and any upper cushion. Uncompressed foam thickness alone does not establish the space available for the component or the force applied when the lid closes.

Check that the chosen configuration restrains the part as intended, closes without forcing the lid, and permits controlled loading and removal. A flat pad does not create an individual retaining cavity. If defined component locations or protected features require a shaped support, request an insert review.

The ESD boxes and device protection guide explains the role of the enclosure and its internal packaging.

Material Properties and ESD Considerations

The following material data is recorded in Malaster MDS-CFS-001, Revision A.

These values describe the CFS material. They are not a lot certificate or a rating for the finished box assembly.

The foam’s material properties do not establish discharge shielding, grounding or the performance of the complete shipping package. Review the enclosure, closure, handling process and any additional protective barrier against the application requirements.

For help comparing the electrical and mechanical choices, read antistatic versus conductive foam. Malaster can provide available material documentation and review specified electrical tests, cleanliness requirements and component-contact conditions for the proposed configuration.

Get Help Configuring Your 803-Series Package

Provide the device drawing or dimensions, quantity per box, permitted support areas, current packaging part numbers, expected handling or shipping conditions, and any specified material or documentation requirements. Include the required quantity and timing.

Malaster can review conductive ESD foam MC-803CFS as a replacement cushion, an alternative foam choice or part of a custom package. Send a custom foam request or discuss the complete packaging requirement.