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. 700-7929
Mfr. Part No.SML-310LTT86
BrandROHM
TWD8.30
Each (In a Pack of 20)
units
Red 1608 (0603) Surface Mount 1 2.5 V 10 mcd - 2 - - Rectangle 660 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 124-6861
Mfr. Part No.SML522BU1WT86
BrandROHM
TWD19.90
Each (In a Pack of 15)
units
Blue, Red 1513 (0605) Surface Mount 2 1.9 V 21 (Red) mcd, 22 (Blue) mcd - 4 - - Rectangular 476 (Blue) nm, 629 (Red) nm 1.5 x 1.3 x 0.6mm -
RS Stock No. 752-6956
Mfr. Part No.SMLV56RGB1W1
BrandROHM
TWD56.20
Each (In a Pack of 5)
units
Green, Red 3528 (1411) Surface Mount 3 2.1 V, 3.3 V 400 mcd, 700 mcd, 1200 mcd - 6 - - Rectangle 475 / 535 / 629 nm 3.5 x 2.8mm -
RS Stock No. 700-8026
Mfr. Part No.SMLE12BC7TT86
BrandROHM
TWD14.60
Each (In a Pack of 5)
units
Blue 1608 (0603) Surface Mount 1 2.9 V 22 mcd - 2 - - Rectangle 470 nm 1.6 x 0.8 x 0.36mm -
RS Stock No. 182-8046
Mfr. Part No.CSL0406WBCW1
BrandROHM
TWD11.70
Each (On a Reel of 2000)
units
White 2812 Surface Mount 1 3.2 V 2200 mcd - 2 - - - - 2.8 x 1.2 x 0.8mm -
RS Stock No. 182-8127
Mfr. Part No.CSL0406WBCW1
BrandROHM
TWD21.90
Each (In a Pack of 20)
units
White 2812 Surface Mount 1 3.2 V 2200 mcd - 2 - - - - 2.8 x 1.2 x 0.8mm -
RS Stock No. 169-0550
Mfr. Part No.SML-310LTT86
BrandROHM
TWD2.30
Each (On a Reel of 3000)
units
Red 1608 (0603) Surface Mount 1 2.5 V 10 mcd - 2 - - Rectangle 660 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 169-0572
Mfr. Part No.SMLE12BC7TT86
BrandROHM
TWD3.90
Each (On a Reel of 5000)
units
Blue 1608 (0603) Surface Mount 1 2.9 V 22 mcd - 2 - - Rectangle 470 nm 1.6 x 0.8 x 0.36mm -
RS Stock No. 700-7957
Mfr. Part No.SML312EC4TT86
BrandROHM
TWD52.00
Each
units
Green 1608 (0603) Surface Mount 1 3.2 V 90 mcd - 2 - - Rectangle 523 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 752-6843
Mfr. Part No.SML-D12D8WT86
BrandROHM
TWD7.50
Each (In a Pack of 10)
units
Orange 1608 (0603) Surface Mount 1 2.2 V 100 mcd - 2 - - Rectangle 608 nm 1.6 x 0.8mm -
RS Stock No. 700-7926
Mfr. Part No.SML-310VTT86
BrandROHM
TWD7.60
Each (In a Pack of 20)
units
Red 1608 (0603) Surface Mount 1 2 V 4 mcd - 2 - - Rectangle 650 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 320-8566
Mfr. Part No.SLR-322VR3F
BrandROHM
TWD12.50
Each (In a Pack of 10)
units
Red 3mm (T-1) Through Hole 1 2 V 16 mcd - 2 50 ° - Rectangle 630 nm 3.1mm -
RS Stock No. 169-0556
Mfr. Part No.SML312EC4TT86
BrandROHM
TWD20.90
Each (On a Reel of 3000)
units
Green 1608 (0603) Surface Mount 1 3.2 V 90 mcd - 2 - - Rectangle 523 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 752-6486
Mfr. Part No.SLA560WBD2PT3
BrandROHM
TWD52.80
Each (In a Pack of 5)
units
White 5mm (T-1 3/4) Through Hole 1 3.2 V 3.3 cd - 2 40 ° - Round - 5mm -
RS Stock No. 124-6882
Mfr. Part No.SML-P24MUWT86R
BrandROHM
TWD13.80
Each (In a Pack of 25)
units
Red, Yellow-Green 1010 (0404) Surface Mount 2 2.1 V, 2.2 V 21 (Yellow-Green) mcd, 52 (Red) mcd - 4 - - Rectangular 575 (Yellow-Green) nm, 625 (Red) nm 1 x 1 x 0.2mm -
RS Stock No. 178-936
Mfr. Part No.SLR-342YY3F
BrandROHM
TWD12.60
Each (In a Pack of 10)
units
Yellow 3mm (T-1) Through Hole 1 2.1 V 10 mcd - 2 40 ° - Round 587 nm 3.1mm -
RS Stock No. 161-2108
Mfr. Part No.SML-D13MWT86A
BrandROHM
TWD2.20
Each (On a Reel of 3000)
units
Green SML-D13 Surface Mount 1 2.1 V 45 mcd - 2 - - Rectangle 574 nm 1.6 x 0.8 x 0.55mm -
RS Stock No. 124-6870
Mfr. Part No.SMLE13EC8TT86
BrandROHM
TWD13.80
Each (In a Pack of 25)
units
Blue-Green 1608 (0603) Surface Mount 1 3 V 120 mcd - 2 - - Rectangular 535 nm 1.6 x 0.8 x 0.36mm -
RS Stock No. 182-8055
Mfr. Part No.SLD430BD2W3F
BrandROHM
TWD10.60
Each (In a Bag of 2000)
units
Blue - Through Hole 1 3.2 V 560 mcd - 2 140 ° - Oval 475 nm 4.25 x 3 x 5mm -
RS Stock No. 700-7979
Mfr. Part No.SML-512DWT86
BrandROHM
TWD18.20
Each (In a Pack of 5)
units
Orange 1608 (0603) Surface Mount 1 2 V 100 mcd - 2 - - Rectangle 606 nm 1.6 x 0.8 x 0.55mm -