VLDY1235R Optoelectronics

Voltage - Forward (Vf) (Typ):	2.3V
Height (Max):	2.97mm
Size / Dimension:	2.30mm L x 2.30mm W
Supplier Device Package:	2-SMD
Package / Case:	2-SMD, Z-Bend
Features:	--
Wavelength - Peak:	591nm
Wavelength - Dominant:	589nm
Mounting Type:	Surface Mount, Bottom Entry
Viewing Angle:	11°
Current - Test:	50mA
Series:	VLD.1235
Lens Style/Size:	Round with Domed Top, 1.80mm
Millicandela Rating:	18000mcd
Lens Transparency:	Clear
Lens Color:	Colorless
Color:	Yellow
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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LED Indication - Discrete

LED (Light Emitting Diode) technology continues to be the illumination of choice among many users of discrete signal indicators. LED indications are used in automotive, marine and vehicle systems, telecommunications, instrumentation, aviation and industrial applications. The VLDY1235R is a discrete indication LED module from SemiLEDs, a US-based manufacturer of LED technology.

VLDY1235R Overview

The VLDY1235R is a green, 12V discrete indication module suitable for use in many applications. The module integrates a 15mm diameter lens that effectively focuses and distributes the light for optimal viewing. The module also includes an integral, internal reflector that is useful for lighting from a distance. The module is classified as a Class 1 emission product and is UVA resistant. The VLDY1235R is designed to operate over a temperature range of -30°C to +85°C, making it suitable for use in a wide variety of environments.

Application Field

The VLDY1235R LED indication module is suitable for use in a variety of applications including:

• Vehicle/Marine/Aircraft Lighting— in an application where illumination and visibility is required, the VLDY1235R LED indication module is capable of delivering a bright, noticeable light source while remaining durable and efficient.
• Telecommunications— in telecom applications, the VLDY1235R is capable of delivering a highly visible indication light. Its up-front emission and narrow viewing angle ensure that the panel lights are visible only when the product is in use.
• Industrial Applications— the VLDY1235R LED module is suitable for use in industrial applications as well. Its rugged weatherproof design, wide temperature range and efficient illumination make it an ideal choice for use in many industrial settings.

Working Principle

The VLDY1235R LED module works by converting electrical energy into light through the use of a semiconductor diode. A diode is a two-terminal device that, when a voltage is applied across it, allows current to flow in one direction. The diode is made from a semiconductor material such as silicon. When electrons from the semiconductor material absorb energy from the voltage applied across the diode, they move from their ground state to a higher energy level. When the electrons come back to their ground state, they emit energy in the form of light.LEDs such as the VLDY1235R require a power supply to generate the voltage required to cause electrons to move to a higher energy level and generate light. The VLDY1235R is designed to operate within a range of 12V, with a maximum current of 60mA. This ensures that the LED module produces a bright, noticeable light whilst remaining efficient.

Conclusion

The VLDY1235R LED indication module from SemiLEDs is an ideal choice for many applications where a discrete indication LED is required. Its rugged design, wide operating temperature range and efficient illumination make it an attractive choice for automotive, marine, telecom and industrial applications. Its adjustable lens and internal reflector also make it suitable for use in applications where visibility and illumination from a distance is required.

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