LTL-4231NHNP

Series:	--
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Color:	Green
Wavelength - Peak:	565nm
Configuration:	Single
Current:	30mA
Millicandela Rating:	12.6mcd
Viewing Angle:	60°
Lens Type:	Diffused, Tinted
Lens Style/Size:	Round with Domed Top, 2.90mm
Voltage Rating:	2.1V
Mounting Type:	Through Hole, Right Angle

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Introduction

LEDs (Light Emitting Diodes) are light-emitting diodes that are used in various applications, such as circuit board indicators, arrays, light bars, bar graphs and more. Among these, the LTL-4231NHNP is one of the most popular LEDs. This type of LED has different applications and works with a different principle.

Application Field

The LTL-4231NHNP LED is a 3x2mm, dual-level, bi-color LED. This type of LED is mainly used for small space lighting applications, such as small handheld devices, automotive instrument clusters, and computer peripherals. Additionally, it can also be used for data communications and signal indicators.Because of its dual-level and bi-color features, the LTL-4231NHNP LED is ideal for applications wherein both the brightness and color combination of the light output is important. For example, it can be used to show the status of a device (i.e. on-off, low-high, etc). Additionally, it is ideal for small warning lights or indicators, as the size and light output of the LED can be adjusted.

Working Principle

The LTL-4231NHNP LED consists of two semiconductors: one N-type and one P-type. The current flow between the two semiconductors is the principle behind the LED’s operation.When an electric current is applied to the LED, electrons from the N-type semiconductor start to flow to the P-type semiconductor. At the same time, holes from the P-type semiconductor start to flow to the N-type semiconductor. This process generates photons of light, which is then emitted from the LED. In the case of the LTL-4231NHNP LED, the two semiconductors are coated with different phosphor materials. The N-type semiconductor is coated with a red phosphor, while the P-type semiconductor is coated with a green phosphor. This results in a bi-color light output, wherein the color of the light output can be adjusted by varying the intensity of the current.

Conclusion

The LTL-4231NHNP LED is a dual-level and bi-color LED that is mainly used for small space lighting applications. Its dual-level and bi-color features make it ideal for applications wherein both the brightness and color combination of the light output is important, such as warning lights or status indicators. The LED’s principle of operation is based on the flow of electrons and holes between two semiconductors, wherein the two semiconductors are coated with different phosphor materials for a bi-color light output.

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