MV5094A Optoelectronics

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Discrete LED indicators, also known as light bulbs, have been used in various applications for decades due to their low cost and robustness. This article will discuss the application field and working principle of MV5094A, a commonly used type of discrete LED indicator.

Introduction

MV5094A is a cost effective, miniaturized LED indicator which can be used in both indoor and outdoor applications. The unit has a power-on indicator, and a single LED that can be adjusted from 5 to 10 mm in height. The indicator is available in a variety of mounting styles and colors, with a built-in resistor to ensure that the LED indicator operates at a safe current level.

Application Field

MV5094A is widely used in a variety of fields due to its abilities, such as:

• Safety systems
• Industrial/manufacturing control
• Architectural lighting
• Automotive and marine applications
• Security alarms
• Test and monitoring

Working Principle

The working principle of MV5094A LED indicators is simple. The LED is provided with a constant current source, which is connected to a power supply, typically a battery or other DC voltage source. As the voltage in the circuit rises, the current in the circuit increases, causing the LED to illuminate. For changes in the voltage, this current needs to stay constant, which is achieved by the resistor placed in-line with the LED. When the power supply is connected and the voltage rises, the resistor ensures that the current does not exceed the safe level, and the LED remains illuminated.

The resistors that are typically used in this type of indicator are normally carbon film, "thick film", or metal oxide resistors. These resistors have a nominal resistance value for a given voltage. As the voltage in the circuit increases, the resistance of the resistor will decrease, resulting in more current being drawn from the power supply.

Conclusion

MV5094A is an excellent choice for a variety of applications due to its functionality, low cost and robustness. The unit is available in a variety of sizes and colors, and can be used in applications such as safety systems, industrial/manufacturing control, and architectural lighting. The working principle of the LED indicator is also quite simple, with a constant current source and a resistor regulating the current draw of the LED.

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