HMA124R4

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The HMA124R4 is one of the most widely used optoisolators classified as transistor, photovoltaic output. It has a wide range of applications mostly in industrial, medical and automotive electronics. This optoisolator is capable of providing isolation between two circuits preserving the fidelity of the signal from the input to the output.

The HMA124R4 consists of a light source, usually an LED, coupled with an optically sensitive transistor inside of a hermetically sealed package. The device is used to provide signal isolation, as in a voltage mulitiplier, isolating a 3.3v signal from a 5v source. The HMA124R4 is also used to provide isolating a sensor input (for example, a thermopile) from a data acquisition system. It is suitable for both DC and pulse applications in a variety of environments.

The working principle of the HMA124R4 is the same as other optoisolators. When the LED is subjected to an electrical current, it emits light, which is detected by the phototransistor. This current then switches on and off, thus, providing an electrical signal isolation between the two circuits. The device is capable of providing a 3000Vrms of transient isolation. This eliminates the possibility of any interference between source and receiver circuits.

The HMA124R4 is widely used due to its immunity to noise, tolerance to voltage interference and high switching speeds. It has an emission wavelength of 850nm, a maximum collector-emitter dark current of 2uA, and a collector-emitter saturation voltage of 0.5V max. The device is also capable of providing a switching speed up to 10kHz. This makes the optoisolator ideal for applications that require a fast and reliable response.

The HMA124R4 is a widely used and reliable optoisolator. It is commonly used in industrial, medical and automotive electronics. It is capable of providing a voltage-resistant isolation between two circuits, along with a fast response time. The device is also designed to be easily installed, making it perfect for a variety of easy-to-implement applications.

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