EL3081M

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An EL3081M is one of the Optoisolators – Triac, SCR Output family of devices that provide electrical isolation between a control circuit and a load. It features an MOSFET-driven triac, which is an ideal switch for AC loads; the ten ohm gate resistor improves thermal performance by dissipating heat reliably. This optoisolator is designed for medium power applications where the load that needs to be switched has an AC voltage rating up to 660V, and a resistive load up to 4A.

The EL3081M optoisolator is comprised of a main input section and a control section. The main input section is composed of a light-sensitive transistor, a diac, and a Gate Resistor. The light-sensitive transistor acts as a photodiode to sense the presence of an optical signal, which is then converted into an electrical signal by the diac. The Gate Resistor allows current to pass through the Gate in either direction.

The control section is composed of a MOSFET driven Triac, which is the component responsible for switching the AC power supply. The Triac is comprised of two pairs of terminals, the Gate and the Cathode. When the EL3081M is activated, a current flows through the Gate, which causes the Triac to turn on. This in turn allows for the current from the AC power supply to be switched to the load.

The EL3081M is commonly used in household appliances, fluorescent lamps, AC dimmers, and other electrical devices. Its wide variety of applications makes it ideal for retrofitting existing electronic equipment with some extra functionality. It is highly reliable even when subjected to harsh environments. Its immunity to electrical noise and interference makes it ideal for industrial applications.

The EL3081M optoisolator has a maximum dielectric strength of 2600Vrms between the input pins, making it suitable for applications where electrical isolation is needed. It also features an integrated logic level converter, which allows it to be used in both DC and AC applications. Its small form factor and low power consumption make it an ideal choice for applications where size and energy requirements are a concern.

In summary, the EL3081M is an ideal optoisolator for a wide range of applications where electrical isolation and control of AC loads are required. With its high immunity to noise and interference, small form factor, and low power consumption, the EL3081M is ideal for both consumer and industrial applications.

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