RF EMI Absorb Sheet 21199162 Equivalent & Substitute Parts

Part Overview

The Laird Technologies EMI part number 21199162 is an RF EMI absorbing sheet with dimensions of 0.125" × 12" × 12". This product is classified as Obsolete and is no longer in active production. The part was designed for electromagnetic interference (EMI) absorption applications requiring RF shielding in compact form factors.

Due to its obsolete status, sourcing original inventory becomes increasingly difficult. Identifying active equivalent products ensures continued availability for maintenance, repair, and new design implementations where similar RF EMI absorption characteristics are required.

Substiute Parts

21199162

Laird Technologies EMIIn Stock: 120221199162 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: The substitute part must provide equivalent or greater surface area coverage. The main part specifies 12" × 12" dimensions; the substitute maintains this footprint.

Material Composition: Both parts utilize absorbing sheet technology designed for RF EMI applications. The substitute employs ECCOSORB® MCS silicone rubber material, which is a standard formulation for RF absorption in this product category.

Adhesive System: The substitute incorporates Pressure Sensitive Adhesive (PSA), enabling direct application without additional fastening or bonding agents.

Thickness Consideration: The main part specifies 0.125" thickness. The substitute provides 0.039" thickness, representing a thinner profile suitable for space-constrained applications while maintaining RF absorption characteristics within the ECCOSORB® MCS series specifications.

Compliance and Certifications: The substitute part 21109145 holds Active product status with RoHS3 compliance and REACH Unaffected designation, ensuring regulatory alignment for current manufacturing and deployment.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Part number 21109145 is the designated equivalent for obsolete part 21199162.

Rationale Based on Provided Data:

1. Manufacturer Continuity: Both parts originate from Laird Technologies EMI, ensuring consistent design philosophy and performance standards within the RF EMI absorption product line.

2. Dimensional Alignment: The 12" × 12" footprint is maintained across both parts, providing direct geometric compatibility in existing mechanical assemblies and enclosure designs.

3. Product Status Transition: The substitute part maintains Active status with current manufacturing support, addressing the obsolescence constraint of the original part. This ensures long-term availability and supply chain stability.

4. Regulatory Compliance: Part 21109145 carries RoHS3 Compliant and REACH Unaffected certifications, meeting current environmental and regulatory requirements for component procurement and deployment in regulated industries.

5. Operational Temperature Range: The substitute specifies 170°C operating temperature capability, providing thermal performance suitable for standard RF EMI absorption applications.

6. Shelf Life Definition: The 24-month shelf life with defined start date (Date of Manufacture) establishes clear inventory management parameters for procurement planning.

Thickness Differential: The substitute part exhibits reduced thickness (0.039" versus 0.125"). This dimensional change must be evaluated within the specific mechanical and electrical constraints of the target application. The thinner profile may require design verification if the original thickness was specified for structural or absorption depth requirements.

Frequently Asked Questions (FAQ)

Q1: Can part 21109145 directly replace 21199162 in existing designs?

A: Part 21109145 maintains the same 12" × 12" surface dimensions and RF EMI absorption function. However, the thickness reduction from 0.125" to 0.039" requires verification that the thinner profile does not compromise mechanical fit, absorption performance, or structural requirements in the specific application. Dimensional clearance and RF absorption characteristics must be confirmed for the target use case.

Q2: What is the significance of the ECCOSORB® MCS designation on the substitute part?

A: ECCOSORB® MCS identifies the specific silicone rubber formulation used in part 21109145. This designation indicates the material composition and performance characteristics within Laird Technologies' RF absorption product portfolio. The MCS series is designed for RF EMI applications requiring pressure-sensitive adhesive mounting.

Q3: Does the Pressure Sensitive Adhesive (PSA) on part 21109145 affect application methods?

A: Yes. The PSA system on part 21109145 enables direct adhesive mounting to surfaces without additional fasteners or bonding agents. If the original part 21199162 used mechanical fastening or different adhesive systems, the application method must be adapted accordingly. PSA mounting provides simplified installation but requires surface cleanliness and compatibility verification.

Q4: Are there inventory considerations when transitioning from 21199162 to 21109145?

A: Current inventory of part 21199162 totals 1112 pieces, while part 21109145 has 880 pieces available. Both represent new original stock. Procurement planning should account for the substitute part's 24-month shelf life from date of manufacture to ensure inventory rotation and compliance with storage requirements.

Q5: What compliance certifications apply to the substitute part?

A: Part 21109145 carries RoHS3 Compliant and REACH Unaffected designations. These certifications confirm compliance with European Union Restriction of Hazardous Substances (RoHS) Directive 3 and REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. These certifications are relevant for applications subject to EU environmental and chemical safety requirements.

Q6: How does the operating temperature specification of 170°C apply to part selection?

A: The 170°C operating temperature rating on part 21109145 defines the maximum continuous thermal environment in which the RF absorbing sheet maintains its functional characteristics. This specification must be compared against the thermal requirements of the target application to ensure adequate thermal margin and performance stability.