VO615A-3X019T Isolators

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Optoisolators are devices that transfer electrical signals across two isolated circuits, providing an effective electrical insulation barrier between the two circuits. The VO615A-3X019T is a photovoltaic output transistor optoisolator which typically uses a 6-pin SIP package. It is made by Vishay Intertechnology and offers high reliability and insulation performance.

Application Field

The VO615A-3X019T is primarily used in signal transmission and isolation applications, including medical diagnostics, telecommunications, automotive, military and instrumentation equipment. It is also suitable for other applications such as microprocessor systems, door and window alarms and industrial safety systems. The power requirements of the optoisolator are from 6 V up to 24 V DC. However, the max current through the phototransistor should not exceed 50mA.

Working Principle

The optoisolator consists of an LED, a phototransistor and a 6-pin SIP package. The LED is placed on the insulating substrate and the phototransistor is sealed next to it. The LED is powered by the input voltage, typically from 6 to 24 VDC, and emits light, which in turn is picked up by the phototransistor, causing the phototransistor to be activated. The realized current then passes through the phototransistor which is then driven into its active state. As a result, the output of the optoisolator is generated.

The VO615A-3X019T offers a very high degree of isolation between the input and the output. This isolation factor of the optoisolator ranges around 7000 volts, which is extremely high compared to other opticisolators. Moreover, the optoisolator is resistant to transient voltage and is capable of withstanding high ESD (electrostatic discharge) levels. In addition, the optoisolator\'s high CMR (common mode rejection) makes it an ideal solution for noise sensitive circuits.

The VO615A-3X019T optoisolator offers excellent performance, reliability and is a great choice for applications that require isolation. The device\'s compact SIP design enables easy and secure mounting in tight spaces, making it a very versatile and cost effective solution.

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