Beryllium Copper Index

Track Mounting	Snap-on Mounting	Omni Mounting	Hook-on Mounting
Stick-on Mounting	Clip-on Gaskets	Clip-on Low Profile	Clip-on Cylindrical Radius
Clip-on Strip Gaskets	Clip-on Reverse Bend Contacts	Clip-on Twisted Contacts	Clip-on No-snag fingers
Special Mounting Reverse Bend Spherical	Special Mounting Reverse Bend Contacts	Special Mounting Spherical Radius	Special Mounting Cylindrical Radius
Special Mounting Strip Gaskets	"D" Connector Gaskets	Contact Rings	Contact Strips
Slippy Fingers	Curved Fingers	Grounding and Shield Strips	RFI/EMI-Shielding
Slot-Mount Shields	Rounded Shields	DIN Connector Gaskets	PCB Contact Fingers
Spiral Shield Gaskets	Accessories
If you know the Shielding Part Number you are looking for, click here for a Directory to access the product information.

Beryllium Copper provides excellent EMI protection when used as a gasket, due to its high electrical conductivity. This combined with the properties of high tensile strength, resistance to fatigue and its spring like qualities, make this an ideal material for use in applications such as around enclosure doors, where constant opening and closing is likely to occur. The major advantage that Beryllium Copper gaskets have over most other conductive gaskets, is that they will tolerate a wiping or shearing action, whereas other materials must have a direct compressive force applied to them. The strips have a bright Copper finish as standard, but can also be plated with Tin, Nickel, etc., to ensure galvanic compatibility with your enclosure. Please contact us for details of our standard components or supply us a drawing of your own specified design. Custom Designed Shielding Tech-Etch supplies many custom designed beryllium copper and stainless steel shielding components for special applications from high volume requirements using progressive dies, to prototype and small quantities utilizing photoetch fabrication. Call for information.

EMI SHIELDING PERFORMANCE Material H-Field - 100kHz E-Field - 10MHz P-Field - 1GHz BeCu >110 dB >110 dB <110> Monel 60 dB >115 dB 95 dB T.C.S. 80 dB 125 dB 100 dB Aluminum 38 dB 100 dB 80 dB Silver/Monel 60 dB 75 dB 70 dB Note: Plating the mating surfaces and wire mesh with the same material will provide superior performance. Chromate chemical film on aluminum maintains surface conductivity by reducing corrosion.

Achieving Electrochemical Compatibility Grouping of Metals by Decreasing Galvanic Activity Group 1 Group 2 Group 3 Group 4 Magnesium Magnesium Alloys Aluminum Aluminum Alloys Zinc & Zinc Plating Chromium Plating Aluminum Aluminum Alloys Zinc & Zinc Plating Chromium Plating Cadmium Plating Carbon Steel Iron Nickel & Nickel Plating Tin & Tin Plating Tin/Lead Solder Cadmium Plating Carbon Steel Iron Nickel & Nickel Plating Tin & Tin Plating Tin/Lead Solder Brass Stainless Steel Beryllium Copper Copper & Copper Alloys Nickel/Copper Alloys Monel Brass Stainless Steel Beryllium Copper Copper & Copper Alloys Nickel/Copper Alloys Monel Silver To avoid galvanic action between contacting metals refer to the following chart. Materials in adjacent groups may be safely used together. Choosing materials from within a single group in the table will provide the least corrosion due to galvanic action when the materials are in contact for an extended period of time with appropriate protective finish. Tech-Etch is happy to help you choose appropriate materials.

Attenuation Management For maximum attenuation of a gasketed gap, the contact resistance of the mounting joint and closing joint must be very low and remain so throughout the life of the product. While a gasket may have the potential for very high attenuation under ideal conditions, over time oxidation, corrosion and dirt at the mounting and closing joints may reduce effectiveness. Factors influencing contact resistance over the life of the product are pressure (closing force), plating, and wiping action. Our engineers can help you determine the optimal specifications to ensure sustained attenuation.

Compression Management The purpose of shielding is to occupy and thereby shield the gap that exists between two adjoining surfaces. In order to be effective, shielding gaskets must be able to occupy both the maximum and minimum gaps, which exist due to fabrication tolerances, misalignment of surfaces, or irregular surfaces. Proper compression management is essential to ensure effective EMI shielding. Tech-Etch will be pleased to assist you in specifying the most effective gasket for your requirements.

Beryllium Copper Gaskets At the maximum gap the gasket should be compressed approximately 25%. Gaskets may be compressed to 50% of their height or more.

We can supply any quantity and any kind of Copper Beryllium Finger Strips and Industrial Enclosure Shielding from stock.would you please inform us how many you need and your target price, then we will confirm ASAP. We are sincerely hope to do business with you and establish long term business relationship with your respectable company.

Look forward to hearing from you soon.

Best regards,

Sam Xu
Contact me:
MSN: xubiao_1996@hotmail.com
GMAIL: samjiefu@gmail.com
SKPYE:jiefu1996


Beryllium Copper Finger Strips and Industrial Enclosure Shielding