Cost control chip is also a challenge, currently a small number of major players in the security chip, but the pressure of competition is big aluminum resistors offer each other, in addition to monitoring the overall industry profits decline as a result of pressure aluminum resistance from terminal manufacturers the cost of intellectual property rights is also a lot of expenses. Energy saving and low power requirements of imported aluminum resistance, present the relevant environmental protection department of security products higher and higher power requirements, but also affect a major indicator of exports. Paradoxically is often relies improve performance in energy consumption. Looking ahead aluminum resistors manufacturers, the development of security chips will be more rapid, but also in monitoring industrial chain plays an increasingly important role, the security chip companies, the opportunities and challenges, and only close to the user, rational development, in order to maintain long-term progress and steady growth. Use high-frequency circuit according to the circuit characteristics: the smaller the better distribution parameters should be used in metal film resistors, metal oxide film resistors and other high-frequency resistance. Low frequency circuits: winding resistance, carbon film resistors are applicable. Decoupling circuit, filter circuit: The change in resistance is not strictly required, any type resistors are applicable. Power amplifier, bias circuit, sampling circuit: circuit stability requirements are relatively high, should choose low temperature coefficient resistor. Selected according to the choice of resistance resistor values ??and error: the principle is the nominal resistance of resistors and resistor values ??required for the difference between the smaller the better. Error Selection: Error desired time constant RC circuit resistors as small as less than 5% of the general optional decoupling circuit, the feedback circuit filter circuit load circuit is not too high for the error of 10% -20% of the optional resistor. device. According resistor limit parameter selection Rated voltage: When the actual voltage exceeds the rated voltage, even if the power requirement, the resistor will be breakdown. Rated power: The selected resistor power rating should be greater than the actual power to bear more than double in order to ensure long-term reliability of the resistor circuit to work in. Imported aluminum resistance, kai Electronics (certified), aluminum resistance provided by the Nanjing-kai Electronics Co., Nanjing-kai Electronics Co., Ltd. (www.eajay.com) is Shenzhen, the other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Yi Jia Electronics leader in the staff warmly welcome all inquiries negotiations to create Yi Jia Electronics better future.