E9058-LB

Series:	*
Part Status:	Obsolete

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Optoisolators - Transistor, Photovoltaic Output are components that help safeguard circuit components from electric shock and other dangerous forms of electrical interference or phenomena. The optoisolator E9058-LB is a particular component that suffers the external environment, and is designed to offer a combination of isolation voltage and current transfer ratio (CTR) within a reasonable set of other parameters. This article will explain the primary field of application and working principle of this optoisolator.First, the E9058-LB is typically used to protect a low current digital circuit from an analog voltage up to 250V, with typical CTR a low as 30%. This can be especially useful in health care equipment, industrial controllers, energy meters, and even printer control boards. This component assures a high input–output isolation voltage rating and a low current transfer rate. It also provides a good high frequency response, due to its optimized circuit design, which will decrease the response time of the system.Second, the E9058-LB works by utilizing the principles of opto-electrical isolation. The opto-transistor consists of two parts: a light emitter and a light receiver. The light emitter is typically powered by a leadless form of two-pin, and can be made of either gallium arsenide or gallium phosphide. When the intensity of the light is increased, the optocoupler’s output frequency increases, and the electrical isolation increases. When the light intensity decreases, the output frequency decreases and the isolation decreases. The output voltage will remain constant when the light is within a certain range.The main purpose of the optoisolator is for safety. Its electrical isolation increases the safety of the secondary circuit by blocking any potentially hazardous voltage from being passed onto it. This optoisolator also utilizes a low current transfer ratio, so that any voltage fluctuations in the primary circuit will not affect the output. This combination of features makes the optoisolator ideal for use in a variety of applications where electrical safety is a concern.The optoisolator E9058-LB is a reliable and very useful component. Its combination of features makes it a suitable choice for applications where high levels of electrical isolation are needed. Its greatest asset is that it provides the necessary safety measures for both the primary and secondary circuit, while still having an economical price. The E9058-LB offers an ideal combination of features for a variety of applications, and is highly recommended for any system utilizing optoelectronics for electronic isolation.

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