TLHY5401

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LED indication is a type of visual indicator typically used to communicate the state of a device or as an alarm for signalling certain situations. For example, in a personal computer, the typical LEDs indicate power on/off, hard drive activity and sleep modes. Similarly, audio products often employ a status LED indicates when audio signal is present or when power is on.LED components, such as the TLHY5401, have become increasingly popular due to their versatility, performance, and cost-effectiveness. This article will cover the TLHY5401’s application field and working principle.

TLHY5401 Application Field

The TLHY5401 is a 3mm, pan head, round LED which can be surface mounted (SMD) or through-hole for various applications. The TLHY5401’s small size, low profile, and bright emission make it suitable for designs where visibility, size, and efficiency are critical. It also features a wide viewing angle which allows it to be applied in highly visible displays.

The TLHY5401 is used in several industries and fields, including automotive, telecommunications, medical, military, and industrial systems. They are commonly used in many machines, including cell phones, printers, calculators, and televisions. Additionally, they are often used in security systems, outdoor signage, airport guidance systems, and automotive lighting, among others.

TLHY5401 Working Principle

The TLHY5401 is an LED discrete indicator which utilizes an LED (light emitting diode) to indicate status or performance. LED indicator lights are semiconductor diodes made from semiconductor materials such as silicon. When a voltage is applied, electrons flow from the anode and generate a photon, resulting in visible light. A common symbol for LED is a triangle with a line through the end, indicating light is emitted when a current is passed through.

When applying a voltage to the TLHY5401, the LED emits light which is visible from the front and back of the device. The TLHY5401 is also polarity sensitive which means the same pins must be connected to the same polarity. The ratio between forward voltage (VF) and current (IF) determines the brightness or intensity of the light emitted. Additionally, the TLHY5401 has an operating temperature range of -40°C to +85°C, making it suitable for a broad range of applications.

Conclusion

The TLHY5401 is a 3mm, pan-head, round LED device designed for surface mounting (SMD) or through-hole applications. It is used across a variety of industries, including automotive, telecommunications, medical, military, and industrial systems. With a wide viewing angle and an operating temperature range of -40°C to +85°C, it is suitable for nearly any application. The TLHY5401 emits visible light when a voltage is applied, the ratio between forward voltage (VF) and current (IF) determines the light intensity, and it is polarity sensitive which means the same pins must be connected to the same polarity.

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