3M 8.26-1-AB5050 RF EMI Absorbing Sheet Equivalent & Substitute Parts

Part Overview

The 3M 8.26-1-AB5050 is an RF EMI absorbing sheet constructed from polymer resin with metal flakes, designed for electromagnetic interference suppression applications. This product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and production requirements.

Substiute Parts

8.26-1-AB5050

3MIn Stock: 10428.26-1-AB5050 Datasheet

Current PartRFQ

AB5050SHF-210X297

3MIn Stock: 858AB5050SHF-210X297 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3M 8.26-1-AB5050 is determined by the following critical parameters:

• Material Composition: Polymer resin with metal flakes, non-conductive construction
• Adhesive Configuration: Non-conductive, single-sided adhesive
• Width Dimension: 8.268" (210.00mm) — this dimension must be maintained for mechanical fit
• Thickness Range: 0.020" to 0.021" (0.50mm to 0.55mm) — acceptable tolerance for EMI absorption performance
• Operating Temperature: Minimum -25°C to 85°C capability required
• Moisture Sensitivity: MSL 1 classification

The substitute part AB5050SHF-210X297 maintains the critical width dimension and material properties while offering an active product status with extended shelf life documentation and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The AB5050SHF-210X297 serves as a direct functional substitute for the obsolete 8.26-1-AB5050 based on the following engineering criteria:

• Material and Adhesive Equivalence: Both parts utilize identical polymer resin with metal flakes and non-conductive single-sided adhesive construction, ensuring equivalent EMI absorption performance.

• Dimensional Compatibility: The critical width dimension of 8.268" (210.00mm) is maintained. The substitute provides a longer sheet (11.693" versus 3.000'), which can be cut to the required length without affecting performance characteristics.

• Thickness Tolerance: The 0.020" thickness of the substitute falls within the acceptable tolerance range relative to the main part's 0.021" specification, maintaining electromagnetic absorption properties.

• Compliance and Availability: The substitute holds active product status with RoHS3 compliance and documented 12-month shelf life, providing supply chain reliability and regulatory alignment for current manufacturing standards.

• Moisture Sensitivity: Both parts maintain MSL 1 classification, indicating unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Can AB5050SHF-210X297 be used as a direct replacement for 8.26-1-AB5050?

A: Yes. Both parts share identical material composition, adhesive type, and critical width dimension. The substitute's slightly reduced thickness (0.020" versus 0.021") remains within acceptable tolerance for EMI absorption applications. The longer length of the substitute requires cutting to the original 3.000' specification.

Q: What is the significance of the length difference between the two parts?

A: The main part is supplied as a 3.000' (914.40mm) roll, while the substitute is 11.693" (297.00mm). The substitute can be cut to match the required length without affecting electromagnetic performance, as absorption characteristics are determined by material composition and thickness rather than sheet length.

Q: Does the 0.001" thickness difference affect EMI absorption performance?

A: No. The thickness difference between 0.021" and 0.020" is within standard manufacturing tolerance and does not materially affect EMI absorption performance for this polymer resin and metal flakes construction.

Q: Why is RoHS3 compliance important for the substitute?

A: RoHS3 compliance ensures the substitute meets current environmental and regulatory requirements for electronic component manufacturing, particularly for applications subject to EU or equivalent regulatory frameworks.

Q: What is the shelf life consideration for the substitute?

A: The substitute specifies a 12-month shelf life from the date of shipment at 70°F (21°C) storage temperature. Both parts maintain MSL 1 classification, indicating no moisture sensitivity restrictions during storage.

Q: Are there any packaging differences between the main part and substitute?

A: The main part packaging is listed as "-" (unspecified), while the substitute is supplied in a Box. Verify packaging requirements for your specific application and logistics workflow.