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After yesterdays activities of attending Greater Bay Area Technology Seminar, networking luncheon, business matching meetings, Munjeong-dong Raemian Gallery and Ground X Corp visit, today the delegate continue Koreas agenda. At 10 to 11 A.M., the mission visit Doosan Robotics which is part of the Doosan Group and a major global player in the design, development and delivery of advanced collaborative robot systems and solutions to manufatures. It enables smart factories by developing and manufacturing cobots that are capable o...
Date：2019-07-12 [More+]
electronica China, lasting for three days, ringed down the curtain on Mar.22,2019 successfully. Microhm prepared elaborately and exhibited full range of resistors in the site. Customers from all over the world visited Microhm E5 - 5606, consulted resistors and experienced. Our staffs introductions of the features, applications and merits were brief and to the point. Customers not only stayed for a time in front of the reception to learn more about products, but also streamed into Microhms booth to have a close look of the mat...
Date：2019-03-25 [More+]
Temperature coefficient of resistance (TCR) is the calculation of a relative change of resistance per degree of temperature change. It is measured in ppm/C (1 ppm = 0.0001%) and is defined as: TCR = (R2- R1)/ R1 (T2-T1). For high-precision resistors, this specification is typically expressed in parts per million (ppm) per degrees Celsius, with reference to normal room temperature, typically +25C. Despite the importance of this specification, individual resistor manufacturers use different methods for defining TCR on their pub...
Date：2019-12-06 [More+]
A resistor is having a fixed, defined electrical resistance which is not adjustable. Fixed resistors are the most commonly used resistors and in general one of the most used electronic components. Fixed resistors are available in axial leaded and surface mount packages as well as more customized packages depending on their application. While axial leaded resistors used to be the most used resistors, nowadays the advantages of surface mount devices make the SMD resistors the most popular. Microhm Electronics manufactures wide...
Date：2019-12-05 [More+]
Thin film resistors account for a majority of the chip resistor market share. The increasing demand for compact size and high resistance power resistor for improving performance at low cost is accelerating the demand for these devices. Thin film resistors, like Microhm Electronics NAP series and NR series, offer lower tolerances, noise, parasitic inductance, and resistor temperature coefficients and provide stability at much higher frequencies compared to thick film resistors. Moreover, due to their highly resistive material...
Date：2019-12-05 [More+]
Following market demands for components to deliver ultra precision applications in often very confined spaces, engineers can now benefit from new technologies capable of designing precision resistors with compact body size, temperature coefficient of 1 ppm/C and tight tolerance 0.01%. The metal film resistor also can be designed with custom schematics to meet individual customer specifications. The NLT series provides not only excellent precision, accuracy and stability, but also epoxy thermosetting plastic package and excel...
Date：2019-12-04 [More+]
The impact of temperature upon resistor performance is reflected, both internally, in terms of its effects on component operation; and externally, in terms of resistor behavior within the installation environment. Inherent to resistor design is the concept that, as electrical current flows through a resistor, it generates a certain amount of heat. This is a phenomenon known as the Joule effect. The thermal response created by the Joule effect then induces relative mechanical changes, or stresses, within the resistor. These s...
Date：2019-12-04 [More+]
Illustrations of the benefits of low TCR may be found within thousands of successful applications. In this paper, well see how low TCR and high precision resistors benefits below applications. Precision Instrumentation Transmille, a leading UK manufacturer of high-accuracy digital multimeters (DMMs), was seeking a resistor component for a new series of 8.5- and 7.5-digit units. To achieve necessary 8.5-digit accuracy, the specified resistor needed to offer extremely low TCR, high-precision, repeatability, low thermal EMF, lo...
Date：2019-12-03 [More+]
The induction of a resistor is a very important item to keep in mind when building a circuit, especially if you are dealing with switching or high frequency circuits. The construction of most resistors are very similar to that of an inductor. They take a specific length of wire or film, determined by the resistance value they are trying to achieve, and wrap it around a core made of ceramic, plastic, fiberglass, or another non-conductive material. A non-inductive resistor is wound one way then again in the other direction. Thi...
Date：2019-12-03 [More+]
For most electronic circuits the power rating is not a key parameter, since those resistors dissipate low amounts of energy of one watt or less. In power electronics however, the power rating is an important characteristic. Generally speaking hereto is referred when power ratings are one watt or higher. Typical applications include power supplies, dynamic brakes, power conversion circuits, power amplifiers and heaters. Nual series of Microhm are typical dynamic brakes. The nominal power rating is defined for a certain ambien...
Date：2019-12-02 [More+]
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