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400-803-9333electronica 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+]Automotive World 2019attractsthe attention of auto industry and auto lovers from all over the world. It shows all kinds of new technologies and products.The participantsexperience a grand automobile electronic feast. Car brandsworldwidedisplay the latest automotive technologiesand achievements, and exchange and absorb more industry top technologyinthe exhibition. As a part of the exhibition, Microhm achieves great success. The high-precision metal foil resistor (MVR2321-4,MVR3825-4) and metal strip resistors (MMS1206,MMS8420...
Date：2019-01-18 [More+]According to Ohms law, V=R・I, the values of any two of the voltage, current, and resistance of resistor are known, it is possible to determine the value of the remaining parameter. Not only lamps but also heaters, motors require energy to operate. The amount of energy required is named power consumption which is P(W)=V(V)*I(A) A voltage of about 2V is applied across its two terminals can light up a LED, so one single dry cell of about 1.5V is not enough. When two dry cells are connected in series, the 3V voltage will exceed...
Date：2019-04-30 [More+]Resistors play a important part in electronic circuits, such as limit / manage the current, provides appropriate bias voltage to the active devices, works as load, provides bias stabilization in combination with capacitors and provides feedback. An electronic circuit and an electrical circuit has the same definition, but electronic circuits tend to be low voltage circuits. An electronic circuit is a complete course of conductors through which current can travel. Circuits provide a path for current to flow. Resistors is appli...
Date：2019-04-30 [More+]The most common resistors have a fixed value of resistance so are often called fixed resistors. Resistors are components used to resist the flow of electric current and have a stated value. They are shown on circuit schematic diagrams using one of the symbols shown in below. Various types of fixed resistors used to reduce voltages and currents around a circuit to help active components, transistors and integrated circuits for example, can carry out tasks such as producing or amplifying signals within the circuit. Resistors ar...
Date：2019-04-29 [More+]Shunts feature the characteristics of small size, offset free, very low noise, excellent linearity, high long-term stability, low TCR and high precision. Current measurement principle of shunts is also Ohms law, i.e I=V/R. Temperature, long-term stability, inductance and thermal EMF are the main influences of changing resistors resistance and voltage. Microhms precision shunt resistors minimize the effects of external factors on themselves. Microhm shunts cover a full range of size from 0805,1206 to 8420, 8518, which stamped ...
Date：2019-04-29 [More+]Resistors are often defined as precision or power. Engineer choose the right models to fix their applications and achieve design and practical success. Power resistors have the characteristics of tight tolerance and high stability. While their designs emphasis more on the power dissipation. Meanwhile, these resistors generally have extended operating temperature limits. Microhms newly and popular power resistors include NLR series and traditional metal clad resistors NUAL series. When tight resistance tolerance and stability ...
Date：2019-04-28 [More+]Since resistors are made of conductive materials. We take inductance as an unwanted and parasitic effect. This effect is especially noticeable if the resistor is made out of wire formed into a coil shape. Depending on the application, resistor inductance might be easily disregarded, especially in DC circuits. However, parasitic resistor inductance can be a significant factor in high-frequency AC applications. The reason for this is that the impedance of a resistor rises with the applied voltage frequency due to the increase i...
Date：2019-04-28 [More+]The shape and size of surface mount resistors ( SMD resistors ) are standardized, most manufacturers use the JEDEC standards. Surface mount resistors are available in all kinds of packages. The mostly used ones nowadays are rectangular. Designing with surface mount resistors, a right solder pad size and land pattern should be used. The following table shows the land pattern for common surface mount packages. The table lists the dimensions for reflow soldering, for wave soldering smaller pads are used. The size of chip resisto...
Date：2019-04-26 [More+]If we want to light up an LED, a right resistor is a must. If we do a lot of electronics projects, were likely to have dozens of resistors lying around. If we are just green hand, an assortment might need to be prepared. Resistors also come rated to handle varying amounts of power. Higher rated power resistors are able to safely dissipate more heat generated. We know Ohms Law formula is V = I R , where V is the voltage, I is the current, and R is the resistance. To get the V in our formula, we need to know the voltage of our ...
Date：2019-04-25 [More+]