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High voltage resistors, like NUB series, are used in a wide range of applications including Power supplies, ESD protection, Electron Microscope, Air Ionising equipment, RADAR equipment and ATE. One of the main application of high voltage resistor dividers is in power supplies with a feedback loop for regulation purposes. Appropriate choice of resistor values and their ratio determines the feedback voltage. For optimal performance a primary high voltage resistor is often combined with a secondary low voltage resistor. To prev...
Date：2019-10-25 [More+]
Strain gages are fundamental sensing devices that function as the building blocks of many other types of transducersincluding pressure, load, and torque sensorsused extensively in structural test and monitoring applications. An example of such a transducer is a load cell that converts a mechanical force to an electrical output signal. In these designs, gages are connected as a Wheatstone bridge, resulting in an accurate and rugged transducer that can operate in extreme environments. To achieve accuracy, the Wheatstone bridge ...
Date：2019-10-24 [More+]
There are a vast array of power supplies on the market, and the variety of resistor applications in those designs broaden the selection dramatically. So, for the purpose of this article, power supplies will be referred to as devices that have fixed DC outputs up to several kV. Whatever the application, power supply designers must be aware of specific regulations on safety or the environment that apply to the area, as well as the actual electrical performance. Resistors play an important role in regulating the supply output an...
Date：2019-10-24 [More+]
There are many choices of sensing elements to measure current to a load. The choices of current sensing elements, such as reistors, can be sorted by applications as well as the magnitude of the current measured. Shunt resistors are the most versatile and cost effective means to measure current. A shunt resistor cost ranges from a few pennies to several dollars. A shunt resistors price is differentiated by value, temperature coefficient, power rating and size. Shunt resistors commonly increase in cost for lower temperature coe...
Date：2019-10-18 [More+]
From instrument amplifiers to precision analog circuits to geophones, resistor networks, such as Microhm Electronics LSP series, are used in a variety of applications. Each has its own unique requirements, but none more stringent than the high-reliability applications found in medical and aerospace industries. In ultrasound equipment, for example, circuits require tight resistor tolerances and excellent tracking. Plane flight controllers or calculators demand precision resistors, while also requiring that components meet tigh...
Date：2019-10-18 [More+]
Microhms precision metal film resistor PMRY is designed as a low-cost alternative to traditional solutions for precision applications, such as industrial process control systems, audio, video, telecom, measuring and calibration equipment. The PMRY series are manufactured using vacuum sputtering system to deposit multiple layers of mixed metals and passivative materials onto a carefully treated high grade ceramic substrate, the resistors are coated with layers of blue lacquer. The metal-film technology is capable of supporting...
Date：2019-10-16 [More+]
A zero-ohm resistor is a resistor that has almost no resistance at all; its resistance is near 0 ohms. A zero-ohm resistor can be wire wound or it can be surface mount. For wire wound resistors, there will be a single black color band around the body of the resistor. For surface mount resistors, there will be a 0 on it indicating it is a zero-ohm resistor. LMK series of Microhm Electronics include zero-ohm resistors, the actual value is less than 0.05m, rated current ranges from 0.5A to 2.5A. Zero-ohm resistors are available ...
Date：2019-10-15 [More+]
In metrological applications, where accuracy is of paramount importance, highly precise standard resistors are also equipped with four terminals: two for carrying the measured current, and two for conveying the resistors voltage drop to the voltmeter. This way, the voltmeter only measures voltage dropped across the precision resistance itself, without any stray voltages dropped across current-carrying wires or wire-to-terminal connection resistances. Microhm Electronicss MVR2321-4, shunt resistor MMS4026 are typical and popul...
Date：2019-10-15 [More+]
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