Components: High-Power, Wide-Resistance-Range SMT Resistor Shrinks To New Level

April 26, 2004
The WSE0805 Metal Strip surface-mount (SMT) power resistor combines a 0.25-W rating and a resistance range of 10 Ω to 10 k Ω in a very small 0805 package. It measures 0.080 by 0.050 in. (2.30 by 1.27 mm) with a maximum height of 0.025 in....

The WSE0805 Metal Strip surface-mount (SMT) power resistor combines a 0.25-W rating and a resistance range of 10 Ω to 10 k Ω in a very small 0805 package. It measures 0.080 by 0.050 in. (2.30 by 1.27 mm) with a maximum height of 0.025 in. (0.64 mm). It also has a temperature coefficient of resistance (TCR) of 15 ppm/°C, tight tolerance down to 0.1%, and low noise of −40 dB. Other features include a very low inductance of 0.06 H and a voltage coefficient of 0.00001%/V (0.1 ppm/V). The operating temperature ranges from −65°C to 150°C. Sample quantities are available now at $0.20 each. Lead time for larger orders is six to eight weeks.

Vishay Intertechnology Inc. www.vishay.com (402) 563-6320

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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