0097061117

FAQFrequently Asked Questions

• What are the key design considerations when integrating the Laird Technologies EMI 0097061117 fingerstock into a shielded enclosure for RF applications? The 0097061117 is a clip-on fingerstock designed for EMI shielding in RF and wireless applications. When integrating this part, ensure that your enclosure edge thickness matches the clip attachment mechanism—the fingerstock's 0.300" width and 0.170" height are optimized for standard sheet metal flanges. The 16.000" length allows coverage of larger seams; plan your installation so that multiple units can be ganged end-to-end without gaps. Verify that mounting surfaces are free of burrs, paint, or anodize that could prevent secure seating, as poor contact directly degrades shielding effectiveness across RF frequencies.
• How does the beryllium copper material and tin plating of the 0097061117 affect long-term reliability in high-humidity or corrosive environments? The 0097061117 uses beryllium copper with tin plating (7.60µm thickness) to balance electrical conductivity, mechanical spring force, and corrosion resistance. Beryllium copper retains springback over millions of cycles, critical for maintaining contact pressure as the clip opens and closes during assembly and maintenance. The tin plating provides initial corrosion resistance but may oxidize in high-humidity or salt-fog environments over years of storage or deployment. In marine, outdoor, or harsh industrial settings, consider secondary protective measures such as conformal coatings on the enclosure or periodic inspection of contact surfaces. The 0097061117 operates reliably to 121°C, but plating durability in thermal cycling combined with moisture exposure should be validated through accelerated testing specific to your application environment.
• Can the Laird Technologies EMI 0097061117 fingerstock be used as a direct replacement for competing fingerstock designs, and what compatibility factors should be evaluated? The 0097061117's clip-on attachment, 0.300" width, and 0.170" height dimensions must align precisely with your enclosure's existing cutout and edge geometry. While other manufacturers produce similar fingerstock products, dimensional tolerances, clip retention force, and material composition vary. Before specifying the 0097061117 as a replacement, confirm that the clip mechanism engages securely without requiring enclosure modification. Test a prototype sample to verify that EMI sealing performance meets your frequency band requirements (particularly for 5G, Wi-Fi, or cellular bands) and that the spring retention does not relax over thermal cycling. Some legacy designs use different plating systems or softer copper alloys; the 0097061117's beryllium copper base offers superior fatigue resistance but may require re-validation of shielding effectiveness if the original design relied on different material properties.
• What shielding effectiveness can be expected from the 0097061117 across typical RF frequency bands, and how does fingerstock length affect coverage? Fingerstock shielding effectiveness depends on contact pressure, material conductivity, and continuous coverage along seams. The 0097061117's 16.000" length is suited for medium-sized enclosure seams; however, effectiveness is only as good as the weakest contact point. Gaps between fingerstock sections, loose clip retention, or interrupted seating degrade shielding by 10–30 dB depending on frequency and gap size. For critical RF applications (cellular base stations, radar, or broadband systems), calculate total seam length and specify multiple 0097061117 units with overlapping ends or use longer continuous fingerstock where possible. At frequencies above 1 GHz, even small discontinuities in contact become problematic; ensure clips are torqued consistently and seams are inspected post-assembly.
• How should the 0097061117 fingerstock be handled and stored to prevent damage to the tin plating and maintain clip spring properties before installation? The 0097061117 is supplied in bulk packaging; store in a dry, temperature-controlled environment (room temperature) to prevent oxide formation on the tin plating. Avoid stacking heavy items on top of bulk shipments, as compression can permanently deform the clip or fingerstock profile. Handle with clean gloves to prevent fingerprint salts and oils from initiating corrosion under the plating. Before installation, inspect each segment for visible deformation, plating damage, or clip misalignment. The clip retention force degrades slightly if the 0097061117 is flexed excessively during handling or pre-assembly; treat as a precision component. If storage exceeds 12 months, re-inspect a sample unit to confirm clip function and plating integrity.
• What is the relationship between operating temperature (121°C maximum) and the 0097061117's shielding performance and mechanical durability? The 0097061117 is rated to 121°C, typical for industrial and telecom equipment. At this temperature, the beryllium copper maintains spring force, but thermal expansion of the enclosure and the fingerstock itself creates small gaps if the original assembly was torqued at room temperature. Plan for linear thermal expansion: a 16.000" segment will grow approximately 0.002–0.003" over a 100°C temperature rise, which may slightly relax clip pressure. In high-temperature transient events (e.g., power amplifier thermal cycling), monitor for intermittent contact loss at seams. If your application involves continuous operation near 121°C or frequent thermal cycling, validate that the clip engagement remains sufficient across the full temperature range and that no creep occurs in the plating or base material over the product lifetime.
• Is the 0097061117 suitable for use in medical device or aerospace applications, and what additional certifications or testing may be required? The 0097061117 carries RoHS3 compliance and is classified under ECCN EAR99 for export control purposes. These designations confirm material and environmental compliance for general industrial use but do not certify the part for medical device (FDA 21 CFR Part 11), aerospace (AS9100), or defense applications. If your application requires medical or aerospace qualification, contact Laird Technologies for material traceability, test reports (thermal cycling, vibration, salt-fog), and documentation of manufacturing process controls. Many aerospace and medical programs mandate fingerstock testing per MIL-DTL-83528 or equivalent; the 0097061117 may be qualified under such standards, but this must be verified and documented separately.
• How does clip-on attachment of the 0097061117 compare to soldered or adhesive-backed fingerstock alternatives in terms of assembly speed and rework capability? The 0097061117's clip-on design allows tool-free installation and removal, speeding assembly and enabling field rework or part replacement without soldering or adhesive cleanup. This is advantageous in high-volume manufacturing and field service scenarios. However, clip-based attachment relies entirely on edge geometry and clip tension; over-torquing nearby fasteners or vibration can cause the fingerstock to shift or disengage. Soldered or adhesive alternatives provide permanent seating but sacrifice reworkability and require thermal or chemical removal if replacement is needed. For applications with frequent enclosure access (e.g., modular telecom cabinets), the 0097061117's clip design offers flexibility. For sealed, single-assembly products, soldered fingerstock may provide superior long-term contact stability.
• What EMI leakage or performance degradation should be anticipated if the 0097061117 fingerstock contact surface becomes oxidized or contaminated during storage or field deployment? Surface oxidation on the tin plating of the 0097061117 increases contact resistance, reducing shielding effectiveness by 3–10 dB depending on contamination severity and frequency. In field deployments, fingerstock can accumulate dust, salt spray residue, or industrial particulates; these degrade the electrical contact path between the fingerstock and enclosure edge. During assembly, wipe the 0097061117 and mating enclosure surface with a clean, dry cloth and consider a thin layer of conductive grease (e.g., silver-filled silicone) to improve contact and inhibit oxidation. If the product is stored in a salt-fog or high-humidity environment pre-installation, schedule visual inspection and, if needed, light abrasion of contact surfaces to restore conductivity. Once installed, periodic maintenance inspections are recommended for outdoor or harsh industrial deployments to verify contact integrity.
• Can the 0097061117 be shortened or modified in the field, and what are the implications for shielding and mechanical performance? The 0097061117 is supplied at a standard 16.000" length; cutting or shortening it in the field is possible but introduces risk. Cutting exposes the base copper alloy at the cut edge, which oxidizes rapidly without protective plating and creates a high-resistance contact point that degrades EMI performance. If a shorter length is required, obtain a custom-length version from Laird Technologies rather than field-cutting. Mechanical modifications (bending the clip, reshaping the fingerstock profile) compromise the spring characteristics and may cause permanent deformation, leading to poor contact pressure and seam leakage. The 0097061117 is engineered as a finished assembly; modifications void performance guarantees and should be avoided in production designs.