MID400

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Optoisolators, also known as optical isolators or optocouplers, are a kind of semiconductor technology often used in digital systems for electrical insulation. In particular, optoisolators can be used to isolate the logic outputs of various devices from their power supplies and ensure the noiseless operation of digital circuits. The MID400 optoisolator is an example of a device from this family that provides reliable electrical insulation in a compact package.

The MID400 optoisolator, manufactured by Mersen Electrical Power, is a reliable interface component for controlling high-voltage loads. This 4-pin device incorporates a dual-junction photodiode and an LED in its insulating base. Its small size makes it ideal for applications where space is an issue. It can be used in a variety of industrial, consumer and scientific applications where reliable electrical insulation is needed.

This optoisolator features a TTL compatible output, integrated MOSFET switch, and low C-E bus capacitance. It is also designed to offer superior isolation performance even in a wide temperature range. It has a reverse voltage capability of up to 20V and can operate in frequencies up to 500 kHz. The operating temperature range of the device is from -20°C to +100°C.

The MID400 optoisolator works in a simple way. Light generated by the internal LED is coupled through the input lead to the photodiode. The photodiode converts the light into a current, which is then amplified by the integrated MOSFET switch. When the input signal crosses a certain threshold, the amplified current flows through a load connected to the output lead, thus switching the output. The photodiode also acts as a capacitor and increases the C-E bus capacitance, thus ensuring low power consumption and providing reliable electrical insulation even at higher frequencies.

The MID400 optoisolator is well-suited for applications where reliable electrical insulation is needed. It provides a low C-E bus capacitance, TTL compatible output, and integrated MOSFET switch. The ability to operate in a wide temperature range makes it ideal for industrial and consumer applications. This optoisolator is designed to serve as an interface for controlling high-voltage loads in a wide variety of applications.

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