MOC119-M

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Optoisolators are electronic isolation devices intended to prevent the transfer of harmful transient or electric interference from one side of the device to the other. In the early days, optoisolators were used in circuit designs to prevent interference between two circuits, and to ensure the safe operation of the system. These days, optoisolators are used for many different applications such as motor speed control, electronic switching, and communication between systems. One of the most common optoisolators used today is the MOC119-M optoisolator.

MOC119-M Application Fields & Working Principle

MOC119-M optoisolators are a type of transistor-photovoltaic (TPV) output optoisolators. They feature a high dual input voltage of 10V, a low driving current of 6mA, and a wide operating temperature range of -40 to +85 °C. As a result, they are ideal for applications in which multiple input signals, which may have different operating voltage levels, need to be isolated. These include LED indicator lamp drivers, relay drivers, and logic-based circuits.

The MOC119-M is a 4-pin optoisolator, with a transistor output, a photovoltaic input, and two pins for power and insulation. The primary function of the device is to provide electrical isolation between two separate circuits. The transistor output is used to provide the control signals, while the photovoltaic input is used to activate the isolation process. When light from the photovoltaic input is detected, a voltage is generated in the transistor base, which then activates the transistor, which in turn activates the optoisolator. By this process, the undesirable effects of electric interference can be avoided.

The MOC119-M features an LED input of 10mA to 30mA. The photovoltaic cell converts the light energy from the LED into an electrical voltage, activating the output transistor. This output transistor is used to drive the electrical load, such as the motor or relay. The MOC119-M also has a maximum power dissipation of 250mW and a maximum peak forward voltage of 4V.

The MOC119-M optoisolator is a highly versatile device, and is designed to meet the requirements of various applications in the fields of industrial automation, motor control, and medical instruments. It features high speed response time, and a wide operating temperature range, making it suitable for use in a variety of harsh environments. Furthermore, it is available in multiple package sizes, allowing designers to customize the device according to their specific requirements.

The MOC119-M optoisolator has many advantages. It allows the operations of two circuits to be isolated from each other, therefore, reducing the exposure of one circuit to the interference of the other. Additionally, the package size of the device is very small, making it possible to create more compact designs. The high operating temperature range also ensures reliable operation in harsh environments. Furthermore, the wide operating voltage range, low driving current, and maximum power dissipation rating make it suitable for various applications.

The MOC119-M optoisolator is an ideal option in a variety of applications such as LED indicator lamp drivers, logic-based circuits, and motor speed control. It features a high dual input voltage, a wide operating temperature range, and a low driving current. Due to its small package size and wide operating voltage range, it is an excellent choice for applications in which multiple input signals need to be isolated from each other.

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