LEDs

Visible LEDs are light emitting devices that generate visible illumination when charged with electrical currents. The brightness of visible LEDs depend on the ranges of power strength emitted from the diodes or twin terminal structures located on the insides.


What are visible LEDs used for?

Visible LEDs are typical in electronic components such as indicator lamps, used in the automotive industry. They are also used in signage and displays such as backlighting for billboards and posters. Visible LEDs are found in everyday products like calculators, digital watches, and smart devices.

Types of visible LEDs

Visible LEDs have different visible lighting features:

  • Flashing LEDs are attention seeking or warning indicators operated by multivibrator circuits, which flash at preset intervals.
  • Bi-colour LEDs have two different coloured LED emitters in one unit to depict system status, for example 'on' or 'off'.
  • Tri-colour LEDs have three LED emitters in one unit producing different colours, with the most common example being traffic light systems.
  • RGB (red, green, blue) LEDs have built-in control units to produce combinations of the primary colours and are mostly used in decorative and entertainment applications.

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Description Price LED Colours Package Type Mounting Type Number of LEDs Forward Voltage Luminous Intensity Radiant Flux Number of Pins Viewing Angle Luminous Flux Lens Shape Dominant Wavelength Dimensions Colour Temperature
RS Stock No. 228-5045
Mfr. Part No.L02R5000H1D1
BrandLedtech
£0.16
Each (In a Pack of 5)
Units
Green 5mm (T-1 3/4) Through Hole 1 2.1 V 44 mcd - 2 30 ° - Round 567 nm 5 x 8.7mm -
RS Stock No. 228-4985
Mfr. Part No.L02R3000G1EP4
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Green 3mm (T-1) Through Hole 1 2.1 V 52.8 mcd - 2 35 ° - Round 567 nm 3 x 5.1mm -
RS Stock No. 228-5039
Mfr. Part No.L4RR5000H1D1
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Red 5mm (T-1 3/4) Through Hole 1 3 V 50 mcd - 2 30 ° - Round 635 nm 5mm -
RS Stock No. 228-5089
Mfr. Part No.L24S5025K2
BrandLedtech
£0.288
Each (In a Pack of 5)
Units
Green, Red Rectangular Through Hole 2 - - - 2 - - Rectangle - 2 x 5mm -
RS Stock No. 228-4979
Mfr. Part No.L4RR3000G1EP4
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Red 3mm (T-1) Through Hole 1 2.1 V 46.3 mcd - 2 35 ° - Round 635 nm 3 x 5.1mm -
RS Stock No. 922-2139
Mfr. Part No.LURR3000G3
BrandLedtech
£0.282
Each (In a Pack of 20)
Units
Red 3mm (T-1) Through Hole 1 1.7 V 1200 mcd - 2 46 ° - Round 660 nm 3 (Dia.) x 5.1mm -
RS Stock No. 228-5001
Mfr. Part No.L07R3000G1EP4
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Red 3mm (T-1) Through Hole 1 1.7 V 460 mcd - 2 35 ° - Round 660 nm 3 x 5.1mm -
RS Stock No. 228-4913
Mfr. Part No.L07R3000G3
BrandLedtech
£2.00
Each
Units
Red 3mm (T-1) Through Hole 1 2.2 V 600 mcd - 2 46 ° - Round 660 nm 3mm -
RS Stock No. 228-5067
Mfr. Part No.L07R5000H1D1
BrandLedtech
£0.514
Each (In a Pack of 5)
Units
Red 5mm (T-1 3/4) Through Hole 1 2.2 V 650 mcd - 2 30 ° - Round 660 nm 5mm -
RS Stock No. 228-5023
Mfr. Part No.LURR3000G1EP4
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Red 3mm (T-1) Through Hole 1 2.5 V 915 mcd - 2 35 ° - Round 660 nm 3mm -
RS Stock No. 228-5073
Mfr. Part No.LURR5000H1D1
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Red 5mm (T-1 3/4) Through Hole 1 2.5 V 1.3 cd - 2 30 ° - Round 660 nm 5mm -
RS Stock No. 228-5051
Mfr. Part No.L03R5000H1D1
BrandLedtech
£0.40
Each (In a Pack of 5)
Units
Yellow 5mm (T-1 3/4) Through Hole 1 3 V 36 mcd - 2 30 ° - Round 585 nm 5mm -
RS Stock No. 228-4991
Mfr. Part No.L03R3000G1EP4
BrandLedtech
£0.176
Each (In a Pack of 5)
Units
Yellow 3mm (T-1) Through Hole 1 2.1 V 51.9 mcd - 2 35 ° - Round 585 nm 3 x 5.1mm -
RS Stock No. 228-4676
Mfr. Part No.L4RR4700H1
BrandLedtech
£0.16
Each (In a Pack of 5)
Units
Red 5mm (T-1 3/4) Through Hole 1 - - - 2 - - Round - 5mm -
RS Stock No. 228-4698
Mfr. Part No.L03R4700H1
BrandLedtech
£0.622
Each (In a Pack of 5)
Units
Yellow 5mm (T-1 3/4) Through Hole 1 - - - 2 - - Round - 5mm -