EL817(S1)(TU)-V

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Optoisolators are electronic components employed to provide physical electrical insulation between two circuits while still allowing them to transfer signals between each other. The EL817(S1)(TU)-V is a type of optoisolator belonging to the transistor, photovoltaic output category. It is commonly used in industrial and commercial applications due to its cost effectiveness and robustness.

The EL817(S1)(TU)-V is a hermetically sealed bidirectional optoisolator, consisting of a gallium-arsenide LED on one side and a monolithic silicon transistor detector on the other side. The internal circuitry of the IC is built using sophisticated fine line processing technologies. The optoisolator isolates the control circuit from the electrically noisy or high voltages isolated circuits.

The LED emits a beam of infrared light when voltage is applied to it. This light is incident on the phototransistor detector which triggers a flow of current, depending on the intensity of the light. The electrical characteristics of the transistors such as the threshold, and saturation voltages, the gain, and the on-resistance are designed into the IC package.

The EL817(S1)(TU)-V optoisolator can be used in applications such as frequency modulation, signal coupling and signal isolation, transistor switching, AC/DC interlocking, level and pulse sensing, etc. It operates within a wide temperature range of -55℃ to +85℃ and offers high isolation voltage rating up to 10 kVRMS. It is widely used in industrial environment due to its robust design and reliable performance.

Some of the key features of the EL817(S1)(TU)-V optoisolator include a wide input voltage range of 4.5 to 20 VDC, a low input current of 2 mA or less over the input voltage range, an output saturation voltage of 0.35 V and a high peak current of 20 mA. It features a low output saturation voltage, a wide voltage control range, and a low driving voltage, as well as excellent UV and general radiation immunity.

The EL817(S1)(TU)-V optoisolator is designed to withstand high current and voltage spikes that are common in industrial environments. It also offers low thermal resistance and uses a patented plastic packaging that reduces stress on the device, increasing its lifespan. It is available in an industry standard dual inline package (DIP) and can be mounted on standard printed circuit boards (PCBs) using leaded solder.

In summary, the EL817(S1)(TU)-V optoisolator is a cost-effective transistor and photovoltaic output optoisolator that offers long-term reliability, good signal isolation, and a robust design suitable for many industrial and commercial applications. It is available in a wide range of temperature grades and offers a wide voltage control range, low thermal resistance, and excellent radiation immunity. It is proven to increase the performance and lifespan of industrial equipment and systems.

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