EL357NB(TA)-VG

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Optoisolators are electronic devices that provide electrical insulation while allowing optical signals to be transferred. EL357NB(TA)-VG is one of the latest optoisolators of the transistors, photovoltaic output variety. It is intended to provide electrical isolation in order to control power and output signals in a variety of applications including communications, instrumentation, medical, energy, industrial automation, and automotive electronics.

The EL357NB(TA)-VG optoisolator is made up of two parts – a photovoltaic cell connected to a transistor. The photovoltaic cell is the primary light source receiving the optical signal from the input. The light excites electrons that are transferred to the base of the transistor, causing the transistor to become switched on. The output is taken from the collector of the transistor in the form of an electrical signal.

The primary advantage of the EL357NB(TA)-VG is its accuracy and reliability in operation. It has a high common-mode rejection ratio (CMRR), typical of 200 dB, and can provide consistent switching action without the output oscillating. It also has a low sensitive area, offering tight tolerance for better accuracy.

In terms of operating parameters, the EL357NB(TA)-VG optoisolator can operate with a supply voltage of 0 V to 56 V and can consume up to150 mW of power. It has an effective isolation voltage of 1,000 Vrms, with a minimum isolation resistance of 1 G ohm. Its maximum guaranteed temperature range is from –40°C to 85°C.

Furthermore, the EL357NB(TA)-VG is compliant with various standards such as CSA, IEC 60950, EN55022, and UL 94V-0. It is also UL recognised, CSA certified, and VDE approved. Safety requirements such as the IEC61000-4-x family are also met.

Given its high accuracy and reliability, the EL357NB(TA)-VG optoisolator is suitable for a wide range of applications. It is ideal for programmable logic controllers (PLCs), factory automation, power control systems, precision sensing systems, and mechanical and electronic switchgear ( protective relays). It can also be used for monitoring, data acquisition, and motor control.

In conclusion, the EL357NB(TA)-VG optoisolator is a reliable, cost-effective, and accurate device for transferring optical signals across an electrically isolated circuit. It is suitable for a variety of industries, including industrial automation, communications, energy, and automotive electronics. It has the ability to provide high CMRR, tight tolerance, and effective isolation voltage, making it well suited to a range of applications, including PLCs, power control systems, and precision sensing systems.

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