RF EMI Absorb Sheet 21199213 Equivalent & Substitute Parts

Part Overview

The Laird Technologies EMI part number 21199213 is an RF EMI absorbing sheet with dimensions of 0.050" thickness × 12" × 12". This component is classified as obsolete, indicating it is no longer in active production. RF EMI absorbing sheets are used in electronic assemblies to attenuate electromagnetic interference across radio frequency bands. Due to the obsolete status of part 21199213, identification of functionally equivalent active alternatives is necessary for ongoing design support and procurement continuity.

Substiute Parts

21199213

Laird Technologies EMIIn Stock: 76221199213 Datasheet

Current PartRFQ

21109145

Laird Technologies EMIIn Stock: 94321109145 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Dimensional Compatibility: Length, width, and thickness must accommodate the mechanical envelope of the original application. The main part 21199213 specifies 0.050" thickness with 12" × 12" planar dimensions.

Material Composition: The absorbing material type (silicone rubber, foam, or other elastomeric compounds) determines electromagnetic absorption characteristics and mechanical properties.

Adhesive System: Pressure-sensitive adhesive (PSA) backing enables field installation without additional fastening or curing processes.

Electrical Classification: ECCN and HTSUS codes confirm regulatory compliance for the product category.

Product Status: Active status ensures ongoing availability and supply chain reliability.

The substitute part 21109145 maintains dimensional similarity (12.000" × 12.000" planar dimensions) and operates within the same product category as an RF EMI absorbing sheet. Both parts share identical ECCN classification (EAR99) and comparable regulatory standing.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: Part 21199213 is classified as obsolete. Part 21109145 maintains active product status with Laird Technologies EMI, ensuring continued availability and manufacturing support.

Regulatory Compliance: Both parts carry identical ECCN classification (EAR99), confirming equivalent export control standing. Part 21109145 includes documented RoHS3 compliance and REACH unaffected status, providing additional regulatory documentation for modern supply chain requirements.

Dimensional Alignment: Both parts share identical planar dimensions (12" × 12"). The thickness differential (0.050" versus 0.039") represents a 0.011" reduction. This variance must be evaluated against the specific mechanical envelope and electromagnetic absorption requirements of the application.

Material and Adhesive Specification: Part 21109145 provides explicit material composition (silicone rubber) and adhesive system (PSA) documentation. These specifications enable direct comparison with application requirements where material properties are critical.

Thermal Performance: Part 21109145 specifies 170°C operating temperature. This parameter should be cross-referenced with the thermal environment of the target application.

Frequently Asked Questions (FAQ)

Q: Can part 21109145 directly replace part 21199213 in existing designs?

A: Both parts are RF EMI absorbing sheets with identical planar dimensions (12" × 12") from the same manufacturer. The thickness differential (0.050" versus 0.039") must be evaluated against the mechanical envelope constraints of the specific application. If the 0.011" thickness reduction is accommodated by the design, substitution is feasible from a dimensional standpoint.

Q: What is the significance of the thickness difference between these parts?

A: Part 21199213 specifies 0.050" thickness, while part 21109145 specifies 0.039" thickness. This 0.011" reduction may affect electromagnetic absorption characteristics and mechanical compliance. Applications with strict thickness tolerances or specific absorption requirements must account for this variance.

Q: Are both parts subject to the same export controls?

A: Yes. Both parts carry ECCN classification EAR99, indicating equivalent export control treatment under U.S. regulations.

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

A: Part 21109145 specifies a 24-month shelf life from the date of manufacture. Storage conditions should maintain standard environmental parameters.

Q: Does part 21109145 include adhesive backing?

A: Yes. Part 21109145 includes pressure-sensitive adhesive (PSA) backing, enabling direct application without additional fastening or curing processes.

Q: What is the operating temperature range for the substitute part?

A: Part 21109145 specifies a maximum operating temperature of 170°C. Applications requiring operation above this temperature require alternative component selection.

Q: Are there any RoHS or environmental compliance differences?

A: Part 21109145 is documented as ROHS3 compliant and REACH unaffected. The original part 21199213 does not include this documentation. For applications requiring RoHS compliance verification, part 21109145 provides explicit certification.