H11A5S-TA1

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Optoisolators are a type of electronic component designed to provide electrical isolation between two parts of an electronic circuit. They are also commonly referred to as opto-isolators or optos. The H11A5S-TA1 is a particularly robust optoisolator specifically designed to provide optical isolation for applications with a high voltage differential. It is a transistor output Photovoltaic optoisolator.

Description

The H11A5S-TA1 optoisolator is a Compact 4-pin, surface mountable device designed to isolate medium-power digital, AC, and high-voltage circuits. It has an integrated phototransistor output mounted in a plastic housing and protected by an epoxy cap. The optoisolator has an open-collector output configuration with a maximum collector current capability of 100mA and a maximum voltage of 32V. The optoisolator is designed to be operated in any common logic system, from TTL to MOS, and can be used in both AC and DC applications. The device also has an excellent temperature stability and is capable of providing isolation up to 5000V.

The device has a 12V reverse leakage voltage of 1mA and a maximum forward current of 1.3mA. It has a isolation yield of 5kV, minimum surrender voltage of 4.5V, and a maximum isolation resistance of 10GOhms. The package size is 7.5 mm x 5.9 mm x 3.2 mm and it has a maximum operating temperature of 125°C.

Working Principle

The basic principle of operation for the H11A5S-TA1 optoisolator is relatively simple. The device is composed of two main elements – an infrared LED and an integrated phototransistor output. The LED is connected to the input side of the optoisolator, while the phototransistor is connected to the output side. When current is supplied to the LED, it emits electromagnetic radiation in the form of visible or infrared light. This radiation is then detected by the phototransistor on the output side, and a current is generated. This current is then passed to the input side of the optoisolator, and a current is generated in response. In this way, the optoisolator allows two circuits to be isolated from each other, providing significant benefits in terms of system safety, thereby eliminating any potential risks from high voltage applications.

Application Field

The H11A5S-TA1 optoisolator is a reliable and robust device for applications where high isolation voltage and low reverse leakage current is required. It is ideal for use in on/off switching applications, motor speed and control, or data transmission. The optoisolator can also be used in logic level gate applications such as level shifting. Some of the typical applications of the H11A5S-TA1 optoisolator include instrumentation, industrial control systems, automotive systems, consumer electronics, medical and telecommunications equipment.

Conclusion

The H11A5S-TA1 optoisolator is an ideal device for providing electrical isolation between two parts of an electronic circuit, especially when high voltage differential is involved. It is a compact, 4-pin, surface mountable device with a maximum collector current capability of 100mA 30mA and a maximum voltage of 32V. It has a maximum isolation resistance of 10GOhms and offers excellent temperature stability. The optoisolator is suitable for applications such as on/off switching, motor speed and control, logic level gate, data transmission, consumer electronics, medical and telecommunications equipment.

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