EL816(S)(TB)

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EL816(S)(TB) application field and working principle

Optoisolators - Transistor, Photovoltaic Output

The EL816(S)(TB) is an optoisolator in the optocoupler family, and belongs to a category of opto-couplers called transistor, photovoltaic output. The EL816(S)(TB) is a UL Recognized Component with the following ratings: Isolation Voltage 5300Vrms, Operating Temperature -55°C to +105°C, Emitter-Collector Breakdown Voltage: 50V,Collector-Emitter Breakdown Voltage: 30V, Off-state Collector-Emitter Voltage: -3V.

This optocoupler can be used to provide an input signal isolation between an input device and an output device. The optoisolator provides isolation by using a LED as the input and a phototransistor as the output. When the LED is turned on, the phototransistor is turned on and current can flow through the output. This is known as a photovoltaic effect. When the LED is off, there is no current flowing through the output, providing the necessary isolation.

The EL816(S)(TB) can be used in a wide variety of applications, including automotive, industrial, and consumer electronics. It can be used to isolate an input signal from a noisy environment, to ensure the safety of an input device, or to protect sensitive circuitry from high voltages.

The working principle of the EL816(S)(TB) is fairly simple. When the LED is turned on, it emits photons which are detected by the phototransistor. This causes the phototransistor to turn on and current flows from the emitter to the collector. The current flow is then used to switch the output device on or off, depending on the desired behavior.

The speed at which the switch responds, or the isolation time, depends on several factors including the voltage applied to the LED, the sensitivity of the phototransistor, and the internal capacitance of the device. The duty cycle of the switch is determined by the design of the circuit and the LED current.

Overall, the EL816(S)(TB) is a reliable and proven optoisolator, suitable for a wide range of applications. It is easy to use and provides a reliable signal isolation without the need for mechanical components. This makes it an ideal choice for applications that require an electrical isolation between two circuits.

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