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Vishay MELF resistors offer record TCR, tolerance rates

05 Dec 2013

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Vishay Intertechnology released the Vishay Beyschlag UMB 0207 series of high-precision thin film MELF resistors for applications with high stability and reliability requirements, such as industrial process control systems. The axial thin film devices are the first in the industry to offer TCR down to ± 5 ppm/K and tolerances down to ± 0.02 per cent in the standard 0207 case size.

The UMB 0207 series is ideal for precision circuits in measurement and calibration equipment, aerospace electronics and medical equipment. It offers a resistance range from 100Ohms to 390kilohms, high operating voltage of 350V, rated power dissipation to 400mW at +70°C, and long-term stability down to less than 0.02 per cent after 1,000 hours. Suitable for processing on automatic SMD assembly systems, the devices are completely lead -free, halogen-free, and RoHS-compliant without exemptions.

Vishay is currently offering samples and production quantities of the UMB 0207 resistors, with six-week lead times for larger orders.

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