To avoid exceeding the maximum temperature is generally integrated suffered the highest temperature is 260 ℃, 10 seconds, or 350 ℃, 3 seconds. This means that all of the pins of each IC package substrate while immersed in the distance from the plane greater than 1 to the maximum time allowed by 1.5mm, wave soldering and dip soldering so temperature control in 240 ℃ ~ 260 ℃, time of about 7 seconds . High speed ECL circuit, the power consumption is also large. When used in small systems, radiators should be installed on the device; for large, medium-sized systems, air-cooled or liquid-cooled equipment should be installed. LM258P commonly classified according to the number of electronic components, the following commonly used to do the next induction class: first electronic components is a function of its independent circuit, the basic unit of the circuit. With the development of electronic technology, more and more varieties of components, functions are more powerful, ranging is also expanding across the components, circuits, the traditional classification system, spanning hardware, software, basic category. From the fundamental point of view, Nanjing ST agents, basic circuit components can be divided into active components and passive components. For semiconductor components made of, you can also discrete devices and integrated devices. By end-use can be divided into: basic circuit elements, switches components, connectors, instructions or display devices, sensors, and so on. The passive device is a component of the input signal only consumes power components, power supply itself does not need to be able to perform signal processing and transmission. Passive components including resistors, potentiometers, capacitors, inductors, diodes. The basic conditions for normal operation of the active device must be provided to the appropriate power ST semiconductor devices, if there is no power, the device will not work. Active devices include transistors, FET, integrated circuits, etc., is a basic material for semiconductor components. ISL81487EIBZ-T Nanjing ST, ST Nanjing agents, 耀坤 Technology (certified merchants) provided by Nanjing 耀坤 Technology Limited. Nanjing Yaokun Ltd. (www.njykkj.com) is specialized in the "IC, FET, relays, power supply module" of the enterprise, the company of "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Yang Kun.