H11A2-V

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Optoisolators are simply isolators in which the input is optically coupled to the output. The H11A2-V optoisolator is an example of transistor, photovoltaic output optoisolator. An optoisolator allows electricity to be transferred from one side of the device to the other without any physical connection, thus ensuring isolation and avoiding ground loops or interference.

The H11A2-V optoisolator contains an infrared emitting LED (IRED) and a silicon phototransistor (PT) in one package, as shown in the diagram. The device will provide reliable and low-cost isolation between two circuits. The device is equipped with a 6-pin dual in line package (DIP) that makes it suitable for use in automated assembly processes. It has a designed response time of 4 μs maximum and a high current transfer ratio (CTR) of up to 500%. It can also operate over a wide temperature range from -40°C to +85°C.

The H11A2-V is a photovoltaic output optoisolator, meaning that the output is converted from an electrical signal to a photovoltaic voltage. The device operates as follows: when an input signal is received, the IRED is activated and emits infrared radiation, and this radiation is detected by the PT. This causes the PT to conduct, increasing the collector current flow to the output transistor. This increases the voltage drop across the output transistor and drives the output voltage high. This process is referred to as current transfer.

The main application of the H11A2-V optoisolator is for isolating two systems so that signals can be transferred reliably without interference. For example, the device can be used in embedded systems and communication systems to prevent interference between two signals. Other applications include monitoring sensitive equipment or preventing interference in communications systems operating at high frequencies. The device is also used in various control systems, where it can provide improved protection against electrical noise and isolation between the input and output circuits.

The H11A2-V optoisolator is an improved solution for isolating a noisy electrical environment and providing reliable protection against interference. It can be used in many different applications and provides a simple and cost effective solution for isolating two circuits. The device is available in standard packages and can be used for isolating various signals over a wide range of frequencies.

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