RF EMI Absorb Sheet 21199172 Equivalent & Substitute Parts

Part Overview

The Laird Technologies EMI part number 21199172 is an RF EMI absorbing sheet with dimensions of 0.060" thickness by 12" x 12" (square format). This component is classified as Obsolete and is no longer in active production. RF EMI absorbing sheets are used in electronic assemblies to attenuate electromagnetic interference across radio frequency bands, protecting sensitive circuits and ensuring compliance with electromagnetic compatibility standards.

Due to the obsolete status of part 21199172, identification of functionally equivalent active alternatives is necessary for ongoing design support, maintenance, and new production requirements. The substitute part identified maintains the core functional parameters of RF EMI absorption while offering current availability and active product support.

Substiute Parts

21199172

Laird Technologies EMIIn Stock: 109321199172 Datasheet

Current PartRFQ

21109145

Laird Technologies EMIIn Stock: 94321109145 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of part 21199172 is based on the following criteria derived from the provided parameters:

Primary Substitution Logic:

1. Manufacturer Consistency: The substitute part 21109145 is manufactured by the same supplier (Laird Technologies EMI), ensuring equivalent material formulations and quality standards.

2. Functional Category: Both parts belong to the RF EMI absorbing sheet category, confirming identical functional purpose.

3. Dimensional Compatibility: The substitute part maintains the 12" x 12" square format, ensuring mechanical fit within the same installation envelope. The thickness differs (0.039" vs. 0.060"), which represents a design variation within the same product family.

4. Product Status: Part 21109145 is classified as Active, providing current availability and ongoing manufacturer support, addressing the obsolescence of the original part.

5. Adhesive System: The substitute incorporates Pressure Sensitive Adhesive (PSA), enabling direct surface mounting without additional fastening or adhesive application.

Key Parameters Determining Substitution:

• Manufacturer: Laird Technologies EMI
• Shape: Square
• Dimensions: 12" x 12" (length and width match exactly)
• Thickness: Variation acceptable within RF EMI absorber product line (0.060" to 0.039")
• Product Status: Active alternative to Obsolete original

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

Part 21109145 is a direct functional substitute for the obsolete part 21199172 based on the following engineering criteria:

1. Product Status Alignment: The original part is classified as Obsolete, making substitution mandatory for continued supply. The substitute part 21109145 is Active, ensuring long-term availability and manufacturer support.

2. Regulatory Compliance: The substitute part 21109145 carries ROHS3 Compliant and REACH Unaffected certifications, meeting current environmental and regulatory requirements. The original part's compliance status is not documented.

3. Dimensional Compatibility: Both parts maintain the 12" x 12" square format. The thickness reduction from 0.060" to 0.039" must be evaluated within the specific installation envelope to confirm mechanical clearance and performance adequacy.

4. Material and Adhesive Specification: The substitute incorporates Silicone Rubber material with integrated Pressure Sensitive Adhesive (PSA). The original part's material composition and adhesive type are not specified in the provided data. Confirm that PSA mounting is compatible with the target assembly surface and environmental conditions.

5. Thermal Performance: The substitute is rated to 170°C operating temperature. Verify this rating is sufficient for the application's thermal environment.

6. Export Classification: The substitute carries EAR99 classification, enabling standard export procedures. The original part's ECCN status is listed as OBSOLETE, providing no guidance for international shipment.

Selection Criteria Summary:

• Use part 21109145 as the primary substitute for part 21199172 in all new designs and production activities.
• Confirm thickness reduction (0.060" to 0.039") does not compromise RF absorption performance or mechanical fit.
• Validate PSA mounting method is appropriate for the target assembly surface and operating environment.
• Confirm 170°C operating temperature rating meets application requirements.

Frequently Asked Questions (FAQ)

Q1: Why is part 21199172 no longer available?

Part 21199172 is classified as Obsolete, indicating it has been discontinued by the manufacturer. Laird Technologies EMI has transitioned to active product lines such as the ECCOSORB® MCS series, represented by part 21109145.

Q2: Is part 21109145 a direct replacement for part 21199172?

Part 21109145 is a functional equivalent substitute. Both parts are 12" x 12" square RF EMI absorbing sheets manufactured by Laird Technologies EMI. The primary difference is thickness: the original is 0.060" while the substitute is 0.039". Confirm this thickness difference does not affect mechanical fit or RF absorption performance in your specific application.

Q3: What is the difference in thickness between the two parts, and does it matter?

The original part 21199172 is 0.060" thick, while substitute part 21109145 is 0.039" thick. This 0.021" reduction must be evaluated within your installation envelope. If the assembly has fixed clearance constraints or if RF absorption performance is thickness-dependent, this difference requires validation.

Q4: Does part 21109145 include adhesive?

Yes. Part 21109145 incorporates Pressure Sensitive Adhesive (PSA), enabling direct mounting to clean surfaces without additional fastening or adhesive application. The original part 21199172's adhesive specification is not documented.

Q5: What material is part 21109145 made from?

Part 21109145 is manufactured from Silicone Rubber. The original part 21199172's material composition is not specified in the available data.

Q6: What is the maximum operating temperature for part 21109145?

Part 21109145 is rated to 170°C operating temperature. Confirm this rating is adequate for your application's thermal environment.

Q7: Is part 21109145 compliant with environmental regulations?

Yes. Part 21109145 is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q8: What is the shelf life of part 21109145?

Part 21109145 has a shelf life of 24 months from the date of manufacture. Manage inventory rotation to ensure components remain within the specified shelf life window.

Q9: How should part 21109145 be installed?

Part 21109145 incorporates Pressure Sensitive Adhesive (PSA). Clean the target surface to remove dust, oils, and contaminants. Apply the sheet directly to the prepared surface with firm, even pressure to ensure full contact and adhesive activation.

Q10: Can part 21109145 be used in high-temperature applications?

Part 21109145 is rated to 170°C operating temperature. Confirm this rating meets your application's maximum thermal requirement. If higher temperature performance is needed, consult Laird Technologies EMI for alternative products.

Q11: What packaging is part 21109145 supplied in?

Part 21109145 is supplied in Bulk packaging. Confirm bulk packaging is compatible with your receiving, storage, and handling procedures.

Q12: Are there any export restrictions on part 21109145?

Part 21109145 carries EAR99 export classification, which permits standard export procedures without additional licensing requirements for most destinations. Verify compliance with your specific export destination requirements.