CZ400-080 RF EMI Absorbing Sheet Equivalent & Substitute Parts

Part Overview

The CZ400-080 is an RF EMI absorbing sheet manufactured by Laird Technologies EMI, part of the CoolZorb series. This component is a silicone elastomer-based absorbing sheet with dimensions of 12.000" × 12.000" × 0.080" (304.80mm × 304.80mm × 2.03mm). The product is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing procurement and system integration requirements. The CZ400-080 operates across a temperature range of -40°C to 175°C and is suitable for RF EMI suppression applications requiring thin-profile absorbing materials.

Substiute Parts

CZ400-080

Laird Technologies EMIIn Stock: 924CZ400-080 Datasheet

Current PartRFQ

A17553-080

Laird Technologies EMIIn Stock: 765A17553-080 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CZ400-080 is determined by the following critical parameters:

Thickness Compatibility: The substitute part must maintain the same overall thickness of 0.080" (2.03mm) to ensure equivalent electromagnetic absorption characteristics and physical fit within constrained spaces.

Operating Temperature Range: The substitute must support the full operating temperature range of -40°C to 175°C to maintain performance across all specified environmental conditions.

Material Composition: The substitute must utilize compatible material properties for RF EMI absorption. While the CZ400-080 specifies silicone elastomer, material information for substitutes is evaluated based on functional equivalence within the CoolZorb product family.

Series Compatibility: Parts within the CoolZorb or CoolZorb 400 series are considered functionally equivalent for RF EMI absorption applications.

Regulatory Compliance: Both the main part and substitute must maintain EAR99 classification for export control consistency.

The A17553-080 substitute part meets these critical parameters while offering an active product status, ensuring continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

The A17553-080 serves as the primary substitute for the obsolete CZ400-080 based on the following engineering criteria:

Thickness Equivalence: Both parts maintain identical thickness of 0.080" (2.03mm), ensuring equivalent RF EMI absorption performance and physical compatibility in space-constrained applications.

Thermal Performance: Both parts operate across the identical temperature range of -40°C to 175°C, supporting equivalent thermal performance requirements.

Series Continuity: The A17553-080 belongs to the CoolZorb 400 series, representing an evolution within the CoolZorb product family from Laird Technologies EMI, maintaining functional compatibility for RF EMI suppression applications.

Active Product Status: The A17553-080 is classified as active, ensuring ongoing manufacturer support, availability, and supply chain continuity compared to the obsolete CZ400-080.

Regulatory Compliance: Both parts maintain EAR99 export control classification. The A17553-080 additionally provides ROHS3 compliance, meeting enhanced environmental and regulatory requirements.

Dimensional Consideration: The A17553-080 provides larger dimensions (18.000" × 18.000") compared to the CZ400-080 (12.000" × 12.000"). Applications requiring the exact 12-inch square format may require cutting or segmentation of the larger substitute part, or sourcing of alternative CoolZorb products in matching dimensions.

Frequently Asked Questions (FAQ)

Q: Can the A17553-080 directly replace the CZ400-080 in all applications?

A: The A17553-080 is functionally equivalent in terms of thickness, operating temperature range, and RF EMI absorption characteristics. However, the A17553-080 is supplied in 18.000" × 18.000" dimensions, compared to the CZ400-080 at 12.000" × 12.000". Direct replacement requires either acceptance of the larger format or mechanical processing to achieve the required dimensions.

Q: What is the significance of the identical 0.080" thickness specification?

A: Thickness is a critical parameter for RF EMI absorbing sheets, as it directly determines electromagnetic absorption performance and attenuation characteristics. The identical thickness ensures equivalent absorption behavior across the RF spectrum.

Q: Why is the CZ400-080 classified as obsolete?

A: Obsolescence indicates that the manufacturer has discontinued production and support for this part number. The A17553-080 represents the current active product offering within the CoolZorb series for equivalent RF EMI absorption applications.

Q: Are there any compliance differences between the two parts?

A: Both parts maintain EAR99 export control classification. The A17553-080 provides additional ROHS3 compliance certification, indicating conformance to Restriction of Hazardous Substances Directive requirements.

Q: What is the operating temperature significance for these parts?

A: The -40°C to 175°C operating range indicates the thermal envelope within which the silicone elastomer material maintains its RF EMI absorption properties and mechanical integrity. Both parts support identical thermal performance.

Q: How should dimensional differences be addressed in system design?

A: Applications designed for 12.000" × 12.000" dimensions must account for the A17553-080 supply format of 18.000" × 18.000". Design options include mechanical trimming, acceptance of the larger format with modified mounting, or identification of alternative CoolZorb products in matching dimensions from Laird Technologies EMI.