SFH1690CT

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Optoisolators are components that transfer signals between two circuits in a way that isolates them from one another. They are used in a wide array of applications such as isolating input and output signals from each other, and for safety and reliability reasons. The SFH1690CT is an optoisolator belonging to the Transistor, Photovoltaic Output family.

The SFH1690CT is an optoisolator that utilizes an internal PIN photo diode optically coupled to a high gain nominal response open collector transistor to achieve the desired level of electrical isolation. The device includes a built-in resistor that helps to ensure the proper operation of the transistor and to keep the quiescent current level low. It has a maximum dc forward current of 5mA and a maximum collector current of 200mA. The device has an isolation voltage rating of 5,000Vrms, making it suitable for most applications.

The SFH1690CT is available in an 8-pin dual in-line plastic (DIP) package and a 4-pin TSSOP package. It is designed for use in automotive, power supply, and other high power applications that require signal isolation. The device is also specified for operation over a wide temperature range, from -40°C to +85°C.

The working principle of the SFH1690CT optoisolator is very simple. The device consists of an integrated PIN photo diode that converts light into electrical signals. The photo diode emits light when an electrical signal is applied to its terminals, creating a current flow through the internal opto-coupler transistor. The transistor amplifies the signal, creating a current flow through the output terminal. The light emitted by the Photo diode is isolated from the output terminal by an internal barrier that isolates the input circuit from the output circuit.

The SFH1690CT optoisolator is a popular choice for applications that require signal isolation. It is suitable for automotive, power supply, and other high power applications, and has a wide temperature range and high isolation voltage ratings. Its simple design and small size make it an ideal choice for applications where space is at a premium. It is also suitable for low power applications where a low quiescent current level is desired.

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