SFH1690BT

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Optoisolators, also known as optocouplers, optocoupling, photocouplers or photoMOS, are electronic components used to transmit electrical signals between two isolated circuits. Such isolation helps protect interconnected circuits from interference due to noise, surges or ground loops. The SFH1690BT isan optoisolator which is categorized under the Transistor, Photovoltaic Output category. By implementing this optoisolator into an electrical system, transmission of electrical signals and data can be accurately achieved, while decreasing hazards caused by power supply interruptions and electrical and magnetic noise.

The SFH1690BT is a two-channel, radio frequency optoisolator featuring a photovoltaic output and two TTL channels. It is designed to be useful for various applications, such as computers, peripherals, home appliance, telecommunications and industrial controls. The optoisolator comes in an 8-pin plastic dip package, and comes with a very low drive current and low propagation delay making it an ideal choice for applications with long transmission lines.

The SFH1690BT features a dielectric isolation of 2500V which enables good isolation between two circuits, thus protecting the circuitry from ESD and EMI. It is also RoHS-compliant, making it suitable for use in a wide range of environmental applications. Moreover, the optoisolator also features an output interface with two TTL channels, enabling it to be used for bi-directional signal transmission. This simplifies the design of various devices and makes them more versatile.

Now that we have established the application fields and features of the SFH1690BT optoisolator, let us look at its working principle. As its name implies, the optoisolator works by isolating two electrical circuits with a dielectric insulation layer. It does this by using a light emitting diode (LED) and a phototransistor. The LED is powered by an electric current and emits a light signal which activates the phototransistor. The phototransistor then amplifies the input signal and forwards it to the output end. This helps protect the circuitry from noise, surges, and ground loops.

The SFH1690BT optoisolator is an excellent choice for electrical systems that require reliable signal transmission while also providing good isolation. The optoisolator can be used in a variety of applications, including telecommunication, computer peripherals, industrial control, and home appliances. Moreover, it comes with a dielectric isolation of 2500V and an output interface with two TTL channels. The optoisolator is also RoHS-compliant and features a low drive current and low propagation delay. All these incorporate to make the SFH1690BT an ideal choice for electrical systems.

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