Components: Plastic Caps Push Performance Of Optical Emitters/Photodiodes

Dec. 16, 2004

Self-aligning plastic lens caps boost the performance of the CFE370, CFD470, and CFR520/530 fiber-optic products. The CFE370 is an 850-nm aluminum-gallium-arsenide high-speed emitter with forward current of 100 mA, output power of 30 mW, rise and fall time of 6 ns, and forward voltage of 2.0 V. The CFD470 is an 850-nm p-i-n photodiode with responsivity at 5 V of 0.55 A/W, total capacitance at 20 V of 3 pF, rise time at 15 V of 6 ns, and an 808 field of view. The CFR520/530 are open-collector Schottky-output 5-Mbit receivers with low pulse-width distortion. In 1000-unit lots, the four products cost $4.61, $3.59, $4.24, and $6.30 each, respectively. Lead time is four to six weeks.

Clairex Technologies Inc.www.clairex.com; (972) 422-4676

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.