H11A817S

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators, such as the H11A817S, are devices that employ an electrical signal or circuit input, then feed it through an optical module and use an infrared light source to convert it into an electrical signal output. In other words, an optoisolator isolates and electrically shields a circuit from electrical noise and other impedance that might interfere with its electrical performance. This makes them ideal for applications that require electrical signals to be transmitted over long distances or to areas that contain hazardous or dangerous electrical signals.

The H11A817S is a type of optoisolator specifically known as a Transistor, Photovoltaic Output type. These optoisolators employ a photovoltaic mode of operation, meaning that a light source is used to create a current within the device. This current then fluctuates when the light source is changed, allowing the device to apply a voltage across its terminals. The H11A817S, specifically, is designed to operate in both a linear and a saturating photovoltaic mode, giving it different operational characteristics.

The two main benefits of this device are its high isolation voltage and low power consumption. The high isolation voltage means that signals of varying types can be transmitted across multiple circuits without fear of electrical interference. This makes it ideal for applications such as data transmission over long distances. Additionally, the low power consumption of the H11A817S allows it to be used in situations where power conservation is a priority.

The H11A817S can be used in many different applications. It is commonly used as an interface between logic signals and analog signals, which requires an electrical isolation to be maintained. It is also commonly used for isolating power circuits from each other, which can help to prevent electrical interference from disrupting delicate circuits. It can also be employed in input/output (I/O) applications such as controlling motors, controlling relays, and in industrial automation where it can provide reliable signal isolation.

The working principle of the H11A817S is relatively simple. When the device is in operation, light emitted from an infrared light source passes through an optical module and is then converted into an electrical signal. This signal then passes through two NPN transistors, where it is amplified and used to drive an output load which is connected to the output connections.

The device is designed to operate in either a linear or a saturating photovoltaic mode, depending on the intensity of the light source. At low light intensities, the device operates in a linear photovoltaic mode, while at higher light intensities, the device operates in the saturating photovoltaic mode. This allows the device to be used for a variety of different applications.

In conclusion, optoisolators, such as the H11A817S, are ideal for applications that require high isolation voltages and low power consumption. They are commonly used in data transmission applications, as well as for isolating power circuits from each other. The device is designed to operate in both a linear and a saturating photovoltaic mode, allowing it to be used for a variety of different applications. Its working principle is relatively simple, and understanding it can help to ensure that the device is used correctly in any given application.

The specific data is subject to PDF, and the above content is for reference