Free Hotline
400-803-9333
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+]
Wirewound resistors are common seen in power supplies and other equipment where lots of power is dissipated. A high-resistance wire is wound on an insulating form usually a ceramic tube and attached to electrodes at each end. These are made to dissipate a lot of power in sizes from one-watt to hundreds of watts. Wirewound resistors are usually intended to be air cooled, but some styles have a metal case that can be attached to a heatsink or metal chassis to get rid of undesired heat. Microhm Nual Series are metal clad wirewou...
Date：2019-06-17 [More+]
In the circuits, low value resistors sense when the current is too high so that measures can be taken upstream before the excess current causes damage. Wirewound resistors are a popular choice for these applications. They are inexpensive, available in low resistance values, have low temperature coefficients and good surge-handling capability. Microhm has served this application for years with their power resistors. Now, Microhms new NS series resistors add an additional application advantage. We designed them for PC board su...
Date：2019-06-14 [More+]
A through-hole resistor is a two terminal passive element that comes with a long, flexible lead that can be inserted into a PCB board. The technology used to insert resistors in PCBs is of two types, i.e. axial type and radial type. Through hole resistors find applications in alternative energy, consumer electronics, computers, and telecommunications. Rise in technology advancements, and increased usage of high configuration systems drives growth of the through-hole resistors market. Through hole resistors provide high mechan...
Date：2019-06-14 [More+]
Resistors are tend to be high precision, high reliability, high voltage, PB free as well as high density mounting. Narrow space mounting is achieved by fillet-less mounting to improve mounting density. As the requirements for higher performance in the restricted space are increasing, not only a resistor but resistor network will need downsizing and area array mounting. The recent market requires higher density mounting, which leads to the request for higher power at conventional product size. Resistors had been used with luxu...
Date：2019-06-11 [More+]
Resistors, like many electronic components, come in a variety of types, shapes, sizes, capacities, and each has significant differences in typical values for resistor wattage rating, tolerances, temperature coefficient, noise, voltage coefficient, frequency response, size, and reliability. Film resistors are most used ones in circuits and consist of carbon composition resistors, carbon film resistors, thick film resistors, thin film resistors and metal film resistors. Take the last two for instance. Borrowing from semiconduct...
Date：2019-06-10 [More+]
Microhm Electronics announced a surface-mount metal foil current sensing resistor designed to save space in automotive, industrial, computer, and consumer applications. The NMS2818 combines a high 5 W power rating with extremely low resistance values down to 4 mR in the compact 2818 case size. The advanced construction of the NMS2818 resistor incorporates improved thermal management and a solid metal nickel-chrome or manganese-copper alloy resistive element with low TCR. This results in a high-power resistor in the 2818 packa...
Date：2019-06-10 [More+]
microhm@microhm.com