Components: Low-ESR Aluminum Capacitors Can Take The Heat

Dec. 16, 2004
Super-low equivalent-series resistance from 25 to 60 mV (at 208C and 100 kHz) has been made possible thanks to a conductive polymer electrolyte. As a result, the PHX series polymer aluminum capacitors have an expected life of 1000 hours at...

Super-low equivalent-series resistance from 25 to 60 mV (at 208C and 100 kHz) has been made possible thanks to a conductive polymer electrolyte. As a result, the PHX series polymer aluminum capacitors have an expected life of 1000 hours at 125°C and are rated over a range of 2.5 to 20 V dc. Capacitance ranges from 22 to 1000 mF, and ripple current ranges from 1.65 to 3.7 A rms (at ­55°C to 1058C). The capacitors, constructed of heavy-duty lead-free materials, tolerate high temperatures. They're offered in 6.3- by 5.7-mm, 8- by 6.7-mm, and 10- by 7.7-mm case sizes. Price ranges from $0.65 to $0.95, and lead time is 10 to 12 weeks.

United Chemi-Conwww.chemi-con.com; (847) 696-2000
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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