VOM618A-3T Isolators

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Optoisolators are microelectronic devices used to electrically isolate two isolated subsystems from each other. In such systems, the optoisolator transfers electrical signals between two subsystems without any direct conductive contact. The VOM618A-3T Optoisolator is a transistor, photovoltaic output optoisolator specifically designed to meet the requirements of a variety of applications.

The VOM618A-3T optoisolator consist of two functional components: an LED emitter and a transistor detector. It can be used to transfer electrical signals within or between isolated subsystems such as mainframe computers, microcontrollers, telecommunication networks, and remote sensing systems. The LED emitter emits a visible light signal when it receives an input voltage, often referred to as "drive voltage". This light signal is then detected by the transistor detector, which then produces an output voltage signal that can be used to control, activate or disengage connected systems.

The LED emitter in the VOM618A-3T optoisolator has a drive voltage range of 0.25V to 10V with a reverse voltage protection as high as 30V. It also has a maximum peak output power of 1W with a required input signal of 0.2µA/mA. Furthermore, the optoisolator comes with a gain of 78-128, 178-228, and 278-328 depending on the input level.

The transistor detector module in the VOM618A-3T is designed around an NPN bipolar junction transistor with a collector current of 10mA. It has a gain range of 65 to 85 and a frequency response of 200 to 600 KHZ. Other features include an output voltage range of 0.2V to 5V, a collector-emitter saturation voltage of 0.2V and a collector to emitter breakdown voltage of 10V.

The high switching speed and low noise levels of the VOM618A-3T optoisolator make it particularly suitable for digital and communication systems where a reliable level of signal isolation and noise suppression are required. It can be used in a variety of applications such as relays, timers, contactless logic, serial data communication, and motor control. Furthermore, it is also well-suited for applications that require a long-term reliability of the optoisolator due to its high temperature range of -40℃ to +150℃.

In conclusion, the VOM618A-3T optoisolator is an ideal choice for a wide range of isolation and signal transfer applications due to its fast switching speed, low noise levels, and high temperature range. It is a simple and reliable solution for systems that require a reliable level of signal isolation and noise suppression.

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