EL208-V

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Optoisolators are devices that use optical signals to achieve electrical isolation. The EL208-V is one such device that specifically uses a transistor and photovoltaic output for its application and working principle.

The EL208-V consists of a GaAs infrared emitting diode optically coupled to a silicon NPN phototransistor. The diode emits infrared light which activates the phototransistor output when current passes through the diode. This allows the EL208-V to sense the fluctuations in the current or voltage of the circuit without any direct electrical contact providing excellent isolation between its input and output.

The nominal impedance of the input of the EL208-V is 50 ohms with a wide operating temperature range. The maximum collector current of the phototransistor output is 100mA while its typical collector to emitter saturation voltage is 0.8V. With a power dissipation of 400mW it provides excellent thermal stability even when subjected to high amounts of current. The response time of the EL208-V is in the range of microseconds.

The EL208-V is widely used in sensors for measuring current and voltage in a circuit, such as pressure sensors, temperature sensors, and AC or DC supply sensors. It can also be used to actuate a relay or an alarm in industrial or medical applications and is often used in medical imaging equipment to provide contactless outputs. In addition, the EL208-V can be used for generating clock or pulse synchronization signals and has the capability to provide reliable isolation of data and signal line potentials or discrepancies.

Due to its excellent features, the EL208-V is well suited for high rate data conversion and input/output interface lines in a variety of applications. Its compact size and low power consumption also makes it suitable for portable devices. In addition, the EL208-V helps protect sensitive circuits, which may be damaged by electrical noise or static electricity, from interaction with higher voltage systems or circuits.

The EL208-V is an ideal optoisolator for high speed digital communication, control circuitry and signal isolation. Its inherent noise immunity and isolation capability make it the perfect choice for industrial, automotive, consumer and medical applications.

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