Free Hotline
400-803-9333
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+]
Current sense resistors are very low value resistors used to measure the current flowing through it. Microhm Electronics MVR2321-4, MPR series, MMS series are most often used current sense resistor. 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. This simple introduction to the topic is the beating heart of the rest of this current article. The to...
Date：2019-11-01 [More+]
AEC-Q200 current sensing resistor NFC series offer excellent stability, high power, small size, excellent heat dissipation and high solder-joint reliability which make them excellent for design into Electric Vehicles, Hybrid Electric Vehicles, Automatic and Continuously Variable Transmission systems and other vehicle power applications. Power metal alloy strip current sense surface-mount resistors NFC series provide superior performance in high temperature applications with a wide range of package sizes in 0805/1206/2512/2725...
Date：2019-11-01 [More+]
The key advantage of designing an SMPS with higher switching frequencies is to reduce the size of passive components and in turn increase the overall power density. One downside is that this increased power density multiplies the potential for damage in the event of an overcurrent event. Overcurrent events are an ever-present risk for SMPSs. Among other problems, overcurrent spikes can cause false triggering due to external parasitic inductance from the source pc board trace. While rapid overcurrent protection (OCP) is impor...
Date：2019-10-31 [More+]
The range and complexity of electrical equipment has increased dramatically in recent years. An unwanted consequence of this rise is the creation of harmonic currents, which can cause voltage distortion and quality problems. Also known as damping resistors, harmonic filters reduce distortions in power systems, which can be produced by nonlinear loads such as arc furnaces and switch-mode power supply (SMPS). Harmonics can have adverse effects on the power supply network. If the nonlinear loads produce unwanted harmonics, they...
Date：2019-10-31 [More+]
Resistors play a fundamental role in our electronic components. In this article, youll learn the top 4 Practical applications of resistors in our daily life. Mobile phone charger Just like the laptop, a mobile phone charger contains a number of resistors that are responsible for controlling the required amount of current. You might have noticed the amount of current on your mobile charger displaying something like 500 mA, 700 mA, 900 mA, 1.0 A or 2.0 A. This is actually the amount of current. A resistor is a basic component ...
Date：2019-10-30 [More+]
A significantly compact version of MMS2512 series has been introduced. The MMS2512 series ultra-low ohmic shunt resistors have a high-power capability and are suited to current measurement in automotive and industrial applications. The new shunt resistors, which are based on a high-performance metal alloy as the resistive element, feature temperature coefficients (TCR) from 50 to 150ppm. Thanks to Microhm Electronics precision welding technology, they deliver a high rated power of 6 watts coupled with an ultra-compact form fa...
Date：2019-10-30 [More+]
Microhm Electronics announces the expansion of the NLR Series of TO-220 and TO-247 style power resistors. The NLR Series value range now starts at 0.01 ohm and goes up to 51K ohm for most sizes (the NLR35 value range extends up to 1M0 ohm). The NLR Series is available in 0.5% tolerances and TCR as low as 50 ppm making it suitable for precision power resistor requirements. Power ratings for the NLR series, assuming use with a heat sink and a 25C case temperature, ranges from 10 W up to 140 W. The NLR Series is ideal for use w...
Date：2019-10-29 [More+]
The MMS3920 and MMS5930 from Microhm Electronics now includes an 0.2 m resistance value in the 3920 and 5930 chip sizes. This extremely low resistance value allows higher power current sensing with greater efficiency. In addition, the all-metal raised element means lower PCB temperatures due to increased convection under the part. The MMS3920 and MMS5930 typically runs 15 to 30 degrees C cooler than comparable sized flat chips. These low resistance SMD shunts also provide high accuracy with tolerances down to 1% and TCR as lo...
Date：2019-10-29 [More+]
microhm@microhm.com