RF EMI Absorbing Sheet 85000076 Equivalent & Substitute Parts

Part Overview

The Laird Technologies EMI 85000076 is an RF EMI absorbing sheet manufactured from ECCOSORB® JCS silicone rubber with pressure sensitive adhesive (PSA). The part measures 12.000" × 12.000" × 0.039" and operates across a temperature range of -70°C to 177°C. This product is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure continued availability for applications requiring RF EMI absorption with PSA backing in 12-inch square configurations.

Substiute Parts

85000076

Laird Technologies EMIIn Stock: 80485000076 Datasheet

Current PartRFQ

85095021

Laird Technologies EMIIn Stock: 89085095021 Datasheet

MFR RecommendedRFQ

85095041

Laird Technologies EMIIn Stock: 99685095041 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for part 85000076 is based on the following critical parameters that must remain consistent:

Dimensional Requirements: Length and width must remain 12.000" (304.80mm) in both dimensions to maintain form factor compatibility in existing designs.

Adhesive System: Pressure Sensitive Adhesive (PSA) backing is required for direct replacement applications.

Temperature Performance: Operating temperature range of -70°C to 177°C must be maintained or exceeded.

Material Compatibility: Silicone-based elastomer materials are acceptable substitutes for silicone rubber formulations.

Regulatory Compliance: ROHS3 compliance is mandatory for all substitute parts.

Thickness Tolerance: Thickness variations within the range of 0.020" to 0.040" are acceptable for RF EMI absorption applications, as the substitute parts represent evolution within the ECCOSORB® product family.

The two substitute parts listed (85095021 and 85095041) are both from the Eccosorb™ JCS-Next series, which represents the active product line successor to the obsolete ECCOSORB® JCS series. Both maintain identical length and width dimensions, PSA adhesive backing, temperature range, and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Thickness Replacement: Part 85095041 provides the closest thickness match at 0.040" (1.02mm) compared to the original 0.039" (1.00mm). This substitute maintains near-identical RF absorption characteristics and is the preferred selection when thickness-dependent performance is critical.

For Reduced Profile Applications: Part 85095021 at 0.020" (0.51mm) thickness offers a thinner profile option. This substitute is suitable for space-constrained designs where RF EMI absorption requirements can be met with reduced material thickness.

Product Status Consideration: Both substitute parts are classified as Active products from the current Eccosorb™ JCS-Next series, ensuring long-term availability and supply chain continuity compared to the obsolete 85000076.

Compliance Status: All three parts maintain ROHS3 compliance. Substitute parts 85095021 and 85095041 additionally carry REACH Unaffected status, providing enhanced regulatory documentation for international applications.

Material Evolution: The transition from Silicone Rubber (85000076) to Silicone Elastomer (85095021 and 85095041) represents a material refinement within the same product family, maintaining functional equivalence while improving manufacturing consistency and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can part 85095041 be used as a direct replacement for 85000076?

A: Yes. Part 85095041 is the recommended substitute. Both parts maintain identical length (12.000"), width (12.000"), operating temperature range (-70°C to 177°C), PSA adhesive backing, and ROHS3 compliance. The thickness difference of 0.001" (0.01mm) is within acceptable tolerance for RF EMI absorption applications.

Q: What is the difference between 85095021 and 85095041?

A: The primary difference is thickness. Part 85095021 measures 0.020" (0.51mm), while 85095041 measures 0.040" (1.02mm). Both are from the Eccosorb™ JCS-Next series and share identical length, width, temperature range, adhesive type, and compliance specifications. Selection depends on application space constraints and RF absorption requirements.

Q: Why is the original part 85000076 obsolete?

A: Part 85000076 has been superseded by the Eccosorb™ JCS-Next product line (represented by 85095021 and 85095041). The newer series provides improved material consistency and extended product lifecycle support.

Q: Are the substitute parts compatible with existing PCB layouts designed for 85000076?

A: Yes, for dimensional compatibility. Both substitute parts maintain the 12.000" × 12.000" square form factor. Thickness variations (0.020" for 85095021 and 0.040" for 85095041 versus 0.039" for 85000076) are negligible for most mechanical assembly applications.

Q: What packaging is available for the substitute parts?

A: Both substitute parts 85095021 and 85095041 are supplied in Bulk packaging.

Q: Do the substitute parts maintain the same temperature operating range?

A: Yes. All three parts operate across -70°C to 177°C, ensuring thermal performance equivalence across the full operating envelope.

Q: Are there any shelf life considerations when switching to substitute parts?

A: All parts, including substitutes, have a 12-month shelf life with the start date marked as Date of Shipment. Storage and handling procedures remain consistent across the product family.