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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+]
Motor control resistors of any type for any application, including wound-rotor AC motors with slip ring starters, DC motor starters, crane control systems, torque-increasing resistors, field discharge resistors can be designed and built. Electric motors of all types AC single-phase or three-phase and DC have two common characteristics during starting and run-up. Without some form of control, the motor will take very high currents, and the switching may itself cause voltage spikes. The high currents risk overloading the supply...
Date：2019-06-24 [More+]
A questions that comes up from time to time is what does axial or radial leaded mean? This is calling out how the leads comes out of the component. Axial leaded components will have a lead or multiple leads coming out of each end of the component. Structurally, using a form of carbon powder mixed with an insulating material, which does not conduct electricity at all, forms most through hole resistors. This is mixed with a paste or resin to create a solid inner core of the resistor, the conductive path. The ultimate resistance...
Date：2019-06-20 [More+]
An international and universally accepted resistor colour code scheme was developed many years ago as a simple and quick way of identifying a resistors ohmic value no matter what its size or condition. It consists of a set of individual coloured rings or bands in spectral order representing each digit of the resistors value. The resistor colour code markings are always read one band at a time starting from the left to the right, with the larger width tolerance band oriented to the right side indicating its tolerance. By matc...
Date：2019-06-20 [More+]
Microhm offers current sense chip resistors with thick film, metal foil and metal strip resistive elements and electro-beam welded metal strip shunts. All process in house and intensive RD team to support. Fast delivery and high level quality are available. Among them MMS4320 is a newly launched EBW resistor with power up to 7W, resistance down to 0.002ohms and TCR as low as 20ppm/K. The smaller size 1503 and 4312 are available as well. Its reliability test performs in accordance with AEC-Q200 standards and it can be regarded...
Date：2019-06-20 [More+]
An LED (Light Emitting Diode) emits light when an electric current passes through it. The simplest circuit to power an LED is a voltage source with a resistor and an LED in series. Such a resistor is often called a ballast resistor. The ballast resistor is used to limit the current through the LED and to prevent that it burns. If the voltage source is equal to the voltage drop of the LED, no resistor is required. The resistance of the ballast resistor is easy to calculate with Ohms law and Kirchhoffs circuit laws. All LEDs re...
Date：2019-06-19 [More+]
The Electronic Industries Association (EIA), and other authorities, specify standard values for resistors, sometimes referred to as the preferred value system. The preferred value system has its origins in the early years of the last century at a time when most resistors were carbon-graphite with relatively poor manufacturing tolerances. The rationale is simple - select values for components based on the tolerances with which they are able to be manufactured. Using 10% tolerance devices as an example, suppose that the first p...
Date：2019-06-19 [More+]
SMD means Surface Mounted Device. An SMD is any electronic component that is made to use with Surface Mount Technology (SMT). SMT was developed to meet the ongoing desire for printed circuit board manufacture to use smaller components and be faster, more efficient, and cheaper. SMD resistors are divided into different packages. The term package refers to the size, shape and/or lead configuration of an electronic component. For instance, an IC chip that is has leads in two rows down opposite sides of the chip is called a Dual ...
Date：2019-06-18 [More+]
Most chip resistors are marked with a 3-digit or 4-digit code - the numerical equivalent of the familiar color code for through-hole components. A new coding system (the EIA-96) has also appeared on precision SMDs. The Three and Four Digit System In this system the first two or three digits indicate the numerical resistance value of the resistor and the last digit gives a multiplier. The number of the last digit indicates the power of ten by which to multiply the given resistor value. Here are some examples of values under th...
Date：2019-06-18 [More+]
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