FODM121FV

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Optoisolators, also known as optocouplers, are electrical components that provide electrical isolation by using light waves, rather than a physical connection, to connect two components. The FODM121FV optocoupler is an example of a high-performance optocoupler with transistor and photovoltaic output.

FODM121FV Application Field

The FODM121FV is a general-purpose isolated interface module with photovoltaic output. It has a wide range of applications, including analog and digital isolated signal transmission, automated test equipment, interface protection and signal/sensor isolation. This optocoupler features a high common-mode transient immunity of 25 kV/μs, high common-mode noise rejection of up to 5 kVrms, and an isolation voltage of 5 kVrms. It operates at a wide temperature range of -40 to +105 C and can be used with a wide range of voltage inputs and outputs. This makes the FODM121FV a suitable choice for applications where noise immunity, temperature range, and wide voltage input/output ranges are critical factors.

FODM121FV Working Principle

The FODM121FV is an optoelectronic component composed of an infrared light-emitting diode (LED) and a silicon-bipolar photovoltaic transistor output, as well as an additional protection diode. Input data on a transmission line is converted to light in the LED, and then read by a photovoltaic output transistor which is optically isolated from the transmission line. This isolated output is then used to drive the transmission line, signaling a digital one or a digital zero.

The FODM121FV has a maximum LED forward current of 1.6mA and an LED saturation voltage of 1.24V under a forward current of 1.6mA. It also has a maximum output current of 20mA and a maximum output voltage of 30V. Additionally, it has an isolation voltage of 5kVrms, which is suitable for use in harsh environment applciations.

The FODM121FV optocoupler features a wide range of features and benefits that make it a suitable choice for many different applications. It is a reliable, cost-effective, and easy-to-use optocoupler for isolating signals, protecting equipment, and providing protection in high EMI environments.

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