Current Sensing Chip Resistors www.yageo.comAbout Yageo Introduction Low Resistance, High Power for Current Sensing Applications Reliable current measurement is critical for the protection, control, and monitoring to keep circuits safe during operation in power and instrumentation systems. Engineers in power supply and battery circuit designs need to consider a give-and-take strategy between low resistance values to minimize power losses and sufficient voltage supplies to avoid noises generated from the environments or particularly in switch mode power supplies. Yageos current-sensing chip resistors are also fully compatible with todays high volume pick-and-place assembly systems. As such, they offer attractive, cost-effective solutions to designers of low voltage power supplies and battery management systems. Featuring a comprehensive resistance range of 0.5 milli-ohms to 1 ohm (low- ohmic), and available from 0.05 to 10 watts, they are not only applicable to battery packs, power supplies and converters, but also suitable for use in diverse power control circuits of tablets, notebook computers and hard disks. Yageo now offers three types of surface-mount (SMT) current- sensing chip resistors based on thick film, metal foil, and metal plate Founded in 1977, the Yageo Corporation technologies, with scalable product portfolios to meet the various has become a world-class provider of passive demands of customers and their applications. component services with capabilities on a global scale, including production and sales Key Features of Yageos Current Sensing facilities in Asia, Europe and the Americas. Chip Resistors The corporation provides one-stop-shopping, offering its complete product portfolio of Low resistance value from 0.2m to 20 m for minimizing resistors, capacitors and wireless components in power losses both commodity and specialty versions to meet High power rating from 0.05 to 10 watts the diverse requirements of customers. Tight tolerance within 2% to exhibit actual current via voltage reading Yageo currently ranks as the world No.1 in chip- Low TCR to avoid measurement distortions. TCR ranges from 50 resistors, No. 3 in MLCCs and No. 4 in ferrite to 100ppm/C for metal and 100 to 1500ppm/C for thick film products, with a strong global presence: 21 sales current sensors offices in 15 countries, 9 production sites, 8 JIT Scalable off-the-shelf products in standard case sizes logistic hubs, and 2 R&D centers worldwide. Wide termination and 4-termination are also available Compatibility with surface-mount assembly process We support our customers with extensive RoHS/REACH-compliant & Halogen-free literature including datasheets, brochures and application notes, which are also available The low temperature coefficient of resistance (TCR) of Yageo s electronically on our website at: current sensing chip resistors minimizes the resistance change www.yageo.com caused by self-heating and high temperature environments. Thermal electromotive force (EMF) is also an important consideration. Thermal EMF is an important parameter of the metal foil series of battery management circuits, and of current sensing resistors. Thermal electromotive force (EMF) of an Mn-Cu o alloy is especially optimal with low EMF below 0.03 uV/ C.