VOW135-X017T Isolators

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Optoisolators - Transistor, Photovoltaic Output are used to provide electrical isolation between a device and the electrical device which takes the signal from the output. This is particularly so in applications that would not otherwise be able to exchange digital or analog signals. VOW135-X017T is one such optoisolator with Transistor, Photovoltaic Output.

The VOW135-X017T optoisolator consists of a phototransistor optically coupled to an infrared LED. It has a compact package size with high current transfer ratio and low output saturation voltage. The optoisolator is capable of transferring signals up to frequencies of 140 kHz, while providing an isolation voltage rating up to 5300 Vrms. The signal transfer voltage from the output of the device is typically 2 V in the ON state.

The working principle of VOW135-X017T optoisolator is that the input is an electrical signal (control current) that is applied to the anode of the LED. The LED emits light which then is detected by the phototransistor. As the LED emits light, the phototransistor changes its resistance, allowing current to flow through the collector-emitter of the transistor. This current is proportional to the control current applied to the LED, thereby providing the output signal.

The VOW135-X017T optoisolator is widely used in industrial markets like factory automation, process control and machine tools, communication systems and buffering circuits. It can be used as an interface for many different types of devices, such as controllers, indicators and sensors. In a three-phase grid-connected inverter the VOW135-X017T can be used to optically isolate the analog output signals from the digital signal. Additionally, VOW135-X017T is also employed in motor drive applications, like brushless DC motor control systems, as the optoisolator helps to isolate the low voltage side from the mains. In motion control applications, it can be used as a relay driver for driving larger loads.

In short, the VOW135-X017T optoisolator is an optically isolated transistor with photovoltaic output that provides isolation between noise sensitive parts and the system over which the signal is transferred. It is widely used for signal buffering, relay driving and industrial applications which require galvanic isolation. Its features, such as high current transfer ratio and very low output saturation voltage make it an ideal choice for a range of industrial applications.

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