Robust EMC gasket with patented triangular profile
9 July 2008Enclosures, Racks, Cabinets & Panel Products
Schroff has developed a textile fabric EMC gasket with a triangular profile that has been granted a patent by the European Patent office. The gasket is designed specifically for narrow gaps.
Previously, self-adhesive gaskets with a semicircular profile and coated with an electrically conductive fabric were generally used for EMC sealing on cases and subracks. The high physical forces that occur in the insertion and removal of components, however, cause severe distortion to the gasket that could deform or damage it. Causes for this include the sharp increase in material thickness (large radius) of the semicircular profile and the relatively small adhesion area, limited to the width of the gasket.
A significant design factor of this new EMC gasket is its triangular profile, which contacts the edges of the base area without the need for filling material. Consequently the geometry of the gasket, observed in the insertion direction from the edge, has a sharper edge. Less material must therefore be compressed by the subracks being inserted, and so these can move more easily over the gasket. At the same time the gasket is subject to less shearing stress.
The edge further ensures that a board protrudes a few millimetres into the case or subrack as soon as it is inserted and the gasket is itself pressed and thus fixed, before the foam core of the gasket must be compressed as the board is inserted further. The resultant shear forces are not sufficient to deform or tear the gasket.
Read more...Transporting and storing lithium-ion batteries
Enclosures, Racks, Cabinets & Panel Products
Lithium-ion batteries have become ubiquitous in modern life, but along with their benefits comes a serious challenge: these batteries pose fire and safety risks and are classified as dangerous goods for transport.
Read more...Non-contact safety door switch Omron Electronics
Enclosures, Racks, Cabinets & Panel Products
OMRON has unveiled its latest innovation in non-contact safety door switches, the D40A-2, designed to enhance workplace safety and streamline machinery operations.
Read more...Easy installation panel mount assembly Future Electronics
Enclosures, Racks, Cabinets & Panel Products
NKK’s new easy installation Panel Mount Assembly (the BYB201-470) consists of a PCB, resistor, connector, and a straight PC adaptor.
Read more...RF shield box to 12 GHz Vepac Electronics
Enclosures, Racks, Cabinets & Panel Products
The HDRF-1467-S from RF Electronics has a thick RF-absorbing foam that deadens standing waves and reflections to provide more than 100 dB of isolation.
Read more...Film and mica capacitors Actum
Passive Components
By utilising various polymer dielectrics plastics, Exxelia film and mica capacitors meet most technical requirements and serve all functions from standard filtering to specialised applications.
Read more...High visibility 4-digit panel ammeters Electrocomp Express
Enclosures, Racks, Cabinets & Panel Products
The MP-335PAS-1 is a 4-digit 7-segment red display ammeter with a measurement range of 4 to 20 mA and a very low power consumption.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version