Interconnections & Packaging: Soft-Touch Collet Knobs Have An Eye-Catching Appeal

March 1, 2004
A firm rubberized material highlights a new line of "soft touch" collet knobs that features an eye-catching design. The knobs work with most round shaft switches and potentiometers and come in 15-mm and 21-mm diameters that accept shaft diameters of 4...

A firm rubberized material highlights a new line of "soft touch" collet knobs that features an eye-catching design. The knobs work with most round shaft switches and potentiometers and come in 15-mm and 21-mm diameters that accept shaft diameters of 4 mm to 0.25 in. (6.35 mm). The two-shot injected knobs use a metal collet with "fingers" that tighten evenly around the shaft to prevent slippage and protect the shafts. Caps are available in two colors, with or without lines or dot markings for indicator reference. Accessories include pointers, nut covers, and figure dials with number settings. Price is approximately $1.50 each in volume with a two-week lead time.

Elma Electronicwww.elma.com; (510) 656-3400
About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.

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