RF EMI Absorb Sheet 21199167 Equivalent & Substitute Parts

Part Overview

The Laird Technologies EMI part number 21199167 is an RF EMI absorbing sheet with dimensions of 0.030" thickness by 12" x 12" in a standard configuration. This component is classified as Obsolete and is no longer in active production. Due to its obsolete status, sourcing original inventory becomes increasingly difficult. Identifying qualified substitute parts ensures design continuity and maintains system performance in RF shielding and EMI suppression applications.

Substiute Parts

21199167

Laird Technologies EMIIn Stock: 85821199167 Datasheet

Current PartRFQ

21109161

Laird Technologies EMIIn Stock: 69421109161 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of RF EMI absorbing sheets is determined by the following critical parameters:

Dimensional Compatibility: The substitute part must maintain equivalent overall dimensions (length, width, and thickness) to ensure proper fit within the mechanical envelope and maintain RF absorption performance across the intended frequency range.

Material Composition: RF absorbing sheets function through specific material properties. The substitute must utilize compatible material technology (silicone rubber-based absorbers) to deliver equivalent electromagnetic absorption characteristics.

Thermal Performance: Operating temperature ratings must meet or exceed the application requirements to ensure material stability and absorption performance under operational conditions.

Compliance & Certification: Product status (Active vs. Obsolete) and regulatory compliance (RoHS, REACH, ECCN classification) determine suitability for new designs and ongoing supply chain viability.

Packaging Configuration: Bulk packaging indicates standard commercial availability suitable for direct substitution in manufacturing environments.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Laird Technologies EMI 21109161

The part number 21109161 is the qualified substitute for obsolete part 21199167. Selection is based on the following engineering criteria:

Dimensional Alignment: Both parts maintain 12" x 12" square geometry. The thickness differential (0.030" vs. 0.039") represents a 0.009" variance, which falls within acceptable tolerance for RF absorbing sheet applications where mechanical fit and electromagnetic performance are the primary concerns.

Material & Performance: Part 21109161 utilizes ECCOSORB® MCS silicone rubber technology, a standard RF absorbing material from Laird Technologies EMI. This material composition delivers RF absorption performance consistent with the original part's intended function.

Regulatory & Supply Status: Part 21109161 carries Active product status with current production availability (668 Pcs in stock). It meets ROHS3 compliance and carries EAR99 ECCN classification, satisfying modern regulatory requirements. The original part 21199167, classified as Obsolete with OBSOLETE ECCN status, presents long-term supply chain risk.

Thermal Capability: The 170°C operating temperature rating of part 21109161 provides adequate thermal margin for standard RF shielding and EMI suppression applications.

Compliance Certifications: Part 21109161 is REACH Unaffected, ensuring compliance with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: What is the primary reason for substituting part 21199167?

A: Part 21199167 is classified as Obsolete and no longer in active production. Substitute part 21109161 is in current production with active inventory, ensuring reliable long-term supply and compliance with current regulatory standards.

Q: Are the dimensions of the substitute part identical to the original?

A: The substitute part 21109161 maintains the same 12" x 12" square footprint. The thickness increases from 0.030" to 0.039" (a 0.009" difference). This variance is within acceptable tolerance for RF absorbing sheet applications and does not compromise mechanical fit or electromagnetic performance in standard enclosure designs.

Q: Does the substitute part meet current compliance requirements?

A: Yes. Part 21109161 is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards. The original part carries an Obsolete ECCN classification, while the substitute carries EAR99 classification, reflecting current export control status.

Q: What material is used in the substitute part?

A: Part 21109161 uses Silicone Rubber as the base material in the ECCOSORB® MCS formulation, a standard RF absorbing material from Laird Technologies EMI designed for electromagnetic interference suppression.

Q: Is the substitute part available in the same packaging?

A: Part 21109161 is supplied in Bulk packaging, suitable for manufacturing and assembly environments. This packaging configuration is standard for RF absorbing sheets in production applications.

Q: What is the shelf life of the substitute part?

A: Part 21109161 has a 60-month shelf life from the date of manufacture, providing adequate storage duration for inventory management in production environments.

Q: Can the substitute part be used in high-temperature applications?

A: Part 21109161 is rated for operation up to 170°C, providing adequate thermal performance for most standard RF shielding and EMI suppression applications. Applications requiring higher temperature ratings require separate evaluation.