H11B3S(TB)-V

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Optoisolators - Transistor, Photovoltaic Output is one type of devices which is used to transfer digital or analog signals from one part of a circuit to another, without allowing a path between the two components. An optoisolator, also known as an optocoupler or an optocoupling device, is a device that contains an electrical component and an optical component which acts to control voltage or current flow between the two parts of the circuit. The H11B3S(TB)-V is one type of optoisolator which offers unique advantages in applications where the isolation between the two parts of the circuit is critical. This article explores the working principle of the H11B3S(TB)-V optoisolator and the range of applications it is suitable for.

The H11B3S(TB)-V optoisolator has a compact design with its electrical component located within the same envelope as the optical component. This allows the device to achieve a maximum isolation voltage of 5 kV, much higher than the typical 1.5 kV of a standard optoisolator. The device is made up of a LED emitting light that is focused onto a PIN photodiode. The reverse voltage across the PIN diode is modulated by the LED current, allowing data transfer with low differential capacitance. This makes the H11B3S(TB)-V a good candidate for use in digital and low-cost switching applications.

The working principle of the H11B3S(TB)-V optoisolator involves the optical and electrical components. The LED is usually connected to the input side of the circuit, and is driven by current or a signal voltage. When the LED is activated, light is emitted which is detected by the PIN photodiode, located on the output side of the circuit. The PIN diode will then produce a reverse voltage across itself, which is modulated by the LED current, allowing the signal to be sensed on the transistor side. As the signal reaches the photodiode, it is converted to a voltage which is then indirectly transferred to the output side of the circuit.

The H11B3S(TB)-V is suitable for a range of applications, including communication systems, motor control, power systems, industrial automation, and instrumentation. It is particularly suitable for applications that require high isolation voltages. The device also offers advantages over other optoisolators for digital and low voltage switching applications, due to its low differential capacitance. The device is also capable of operating within an ambient temperature range of -40 °C to +85 °C, both 1-turn and 2-turn types are available on the market.

In summary, the H11B3S(TB)-V optoisolator is a compact, high isolation device, capable of operating at temperatures up to 85 °C. It is suitable for a range of applications, including communication systems, motor control, power systems, industrial automation and instrumentation. The device offers a maximum isolation voltage of 5kV, and a low differential capacitance suitable for low-voltage digital and switching applications. In addition to these advantages, the device is also available in both 1-turn and 2-turn configurations.

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