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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+]
Besides the corresponding precise calibration measuring devices also precise calibration resistors are required for the calibration of testers. These calibration resistors, like Microhm Electronics MVR2321-4, MVR3825-4, MVR4618-4 and NSR, serve to let certain test currents flow at various test methods and test voltages. In doing so it is tested to what extent the measured voltage and current values indicated by the tester to be calibrated correspond to the measured values of an external measuring device. Minor deviations with...
Date：2019-08-27 [More+]
Metal film resistors are axial resistors with a thin metal film as resistive element. The thin film is deposited on usually a ceramic body. They are amongst the most common types of axial resistors. Other film type resistors are carbon film and thick and thin film resistors. In most literature referrals to metal film, usually it is a cylindrical axial resistor. However, thin film chip resistors use the same manufacturing principle for the metal layer. HPMRY series and PMRY series are among the most popular metal film resistor...
Date：2019-08-27 [More+]
The function of resistors is to oppose the flow of electric current in a circuit. Therefore their primary parameter is the resistance value. The manufacturing tolerance must be adequately chosen for each specific application. The ultimate resistance value may deviate from the specification because of many reasons. One is the temperature coefficient of resistance, or TCR, which is often specified for precision applications. Stability defines the long term variations of the resistance. After a long duration of electric load, th...
Date：2019-08-26 [More+]
Microhm Electronics MMS series comes in both 2-terminal and 4-terminal options. MMS series power current sense resistors expand the current sense resistor families. They are manufactured using a metal element. The popular 2-terminal models are available in three different footprint sizes: 5930, 3920 and 2512. With resistance values as low as 0.2m, each family will have a range of low-resistance options and power ratings of up to 10 W. Current sense resistors are growing in popularity due to their high measurement accuracy and...
Date：2019-08-26 [More+]
Power resistors are designed to withstand and dissipate large amounts of power. In general they have apower ratingof at least 5 Watt. They are made from materials with a high thermal conductivity, allowing efficient cooling. They are often designed to be coupled with heat sinks to be able to dissipate the high amount of power. NLR series and MVR series from Microhm Electronics are very popular precision power resistors with heatsink, Nual series is a traditional metal-clad power resistor. Some might even need forced air or li...
Date：2019-08-24 [More+]
Cement resistors, such as Microhm Electronics NWH series, are made by winding resistance wires around non-alkaline ceramic core or metal oxide film rod, which is added with a layer of heat and humidity resistant and non-corrosive protective material. If you are designing a circuit where a lot of current is being passed through a resistor and with it needing to be resistant to high heat and flame, cement resistors is a good design choice. Microhm Electronics offers cement resistor NWH series for customers power supply, current...
Date：2019-08-23 [More+]
The ability to measure low values to tight tolerances is a concern to both the manufacturer and the user. Microhm Electronics low ohm resistors with tight tolerance covering shunt resistosrs, metal foil resistors, metal film resistors and more. The problem is compounded in the cases of high current shunts where the self-heating will cause the in-service resistance value to be different than that obtained with low current level measuring equipment. Therefore, the measurement conditions must be defined at the time of specificat...
Date：2019-08-22 [More+]
In a 4-terminal resistor, an ultra-precise resistor (green) is connected to 4 terminals through small, but unknown, resistors (red). These unknown resistors are the combination of lead resistance, screw terminal resistance, connection wire resistance, and other sources of errors. Typical values for these unknown resistors range from 0.01 ohms to 0.2 ohms, and the values are often unstable. The values can change when you loosen or tighten a screw, for example, or if you substitute a longer test lead. To use a 4-terminal resist...
Date：2019-08-22 [More+]
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