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Current sense resistors are very low value resistors used to measure the current flowing through it. The current through the resistor is represented by the voltage across the resistor, so by applying I = V/R as set down by the famous school teacher Georg Simon Ohm, the current is proportional to the voltage across the resistor. Microhm Electronics mainly focus on the manufacture of low ohm current sense resistors, NMS series, MMS series, MPR series for example. Current sense monitoring helps to improve the efficiency of some ...
Date：2019-09-25 [More+]
Imagine a world without electricity. Without the motive force of electricity and more importantly a way to harness it, we would be without 90 percent of our creature comforts. Everything from the family car to the kitchen food processor operates on electrical power, and without juice, these things would come to a grinding halt. The same is true of lasers and their support systems. Without power, your laser is useless and no more worthwhile than a rock paperweight. Microhm Electronics TO-220 high power resistor NLR 35 is used...
Date：2019-09-24 [More+]
Typical use for carbon film resistors is in high voltage and temperature applications. Operating temperatures are up to 15kV with a nominal temperature of 350C. Examples are high voltage power supplies, radar, x-rays and laser. Carbon film resistors are a fixed form type resistor. They are constructed out of a ceramic carrier with a thin pure carbon film around it, that functions as resistive material. Carbon film resistors are a significant improvement on carbon composition. However, in comparison to metal film and metal oxi...
Date：2019-09-23 [More+]
Resistors for medical applications cover a wide range of applications and operating environments; whether they are found in implantable devices, imaging equipment, surgical or patient monitoring equipment, as part of a hospitals physical plant, or part of home-based health care, these resistors need to have a high level of performance, stability, and precision. Microhm Electronics wide range of resistor products offer solutions for a variety of engineering challenges. Our technical staff can help designers select the device b...
Date：2019-09-23 [More+]
The industrial investment in unmanned aerial vehicles (UAVs) is soaring due to their multiple partially or fully autonomous applications such as aerial photography, rescue operations, surveillance, and scientific data collection. Current sensing for battery of UAVs is critical for determining battery capacity in order to calculate the remaining flight time, and detecting fault. Magnetoresistive sensors are highly suitable for current sensing on UAVs due to their higher accuracy, lower energy consumption, and smaller size than...
Date：2019-09-20 [More+]
Naturally, not every engineer needs an entire high-performance package for their circuitry. Resistors with much poorer specifications can be used satisfactorily in many applications, so the question of need is divided into four basic categories: Existing applications that can be upgraded by relying on the total performance package of Metal Foil resistors. Existing applications that require one or more, but not necessary all, of the performance parameters to be industry best. State-of-the-art circuitry that can only be develop...
Date：2019-09-20 [More+]
Another form of SMD resistor that can be used is known as the MELF resistor - Metal Electrode Leadless Face. These resistors are not nearly as widely used as the standard SMD resistors, but in some instances they provide advantages and can be used. MELF resistor are more expensive than the more widely used SMD resistors, they are able to provide higher levels of performance in terms of long term stability, moisture resistance, reliability, and the resistance to the effects of temperature cycling experienced int he soldering p...
Date：2019-09-19 [More+]
Thick film resistors are being produced by firing a special paste onto the substrate. The paste is a mixture of glass and the metal oxides. Thin film has got a thickness in the order of 0.1 micrometer or even smaller, while the thick film is around thousands time thicker in comparison to that. However, the main difference is the method the resistive film is applied onto substrate. Thin film resistors have got a metallic film which is vacuum deposited on an insulating substrate. Thin film resistors and thick film resistors are...
Date：2019-09-17 [More+]
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