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. 752-6512
Mfr. Part No.SLC-22VR3F
BrandROHM
HK$30.183
Each (In a Pack of 10)
units
Red 2 mm Lighthouse Through Hole 1 2 V 2.5 mcd - 2 115 ° - Round 630 nm 2mm -
RS Stock No. 169-0550
Mfr. Part No.SML-310LTT86
BrandROHM
HK$0.732
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. 700-7929
Mfr. Part No.SML-310LTT86
BrandROHM
HK$1.298
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. 320-8550
Mfr. Part No.SLR-322VC3F
BrandROHM
HK$2.307
Each (In a Pack of 10)
units
Red 3mm (T-1) Through Hole 1 2 V 16 mcd - 2 35 ° - Rectangle 630 nm 3.1mm -
RS Stock No. 475-2553
Mfr. Part No.SML-521MUWT86
BrandROHM
HK$3.424
Each (In a Pack of 5)
units
Green, Red 1513 (0605) Surface Mount 2 1.9 V, 2.2 V 16 mcd, 63 mcd - 4 - - Rectangle - - -
RS Stock No. 752-6925
Mfr. Part No.SMLP34RGB1W3
BrandROHM
HK$9.698
Each (In a Pack of 5)
units
RGB 1010 (0404) Surface Mount 3 2.1 V, 3 V, 3.1 V 18 mcd, 28 mcd, 45 mcd - 4 - - Rectangle 475 / 535 / 629 nm 1 x 1mm -
RS Stock No. 320-8538
Mfr. Part No.SLR-322MC3F
BrandROHM
HK$2.611
Each (In a Pack of 10)
units
Yellow-Green 3mm (T-1) Through Hole 1 2.1 V 25 mcd - 2 35 ° - Rectangle 572 nm 3.1mm -
RS Stock No. 169-0571
Mfr. Part No.SML-A12MTT86
BrandROHM
HK$1.145
Each (On a Reel of 3000)
units
Green 1613 (0605) Surface Mount 1 2.1 V 40 mcd - 2 - - Rectangle 570 nm 1.6 x 1.15 x 0.55mm -
RS Stock No. 700-7932
Mfr. Part No.SML-311UTT86
BrandROHM
HK$1.891
Each (In a Pack of 10)
units
Red 1608 (0603) Surface Mount 1 1.8 V 2.5 mcd - 2 - - Rectangle 620 nm 1.6 x 0.8 x 0.8mm -
RS Stock No. 752-6928
Mfr. Part No.SMLP36RGB1W3
BrandROHM
HK$9.86
Each (In a Pack of 5)
units
RGB 1010 (0404) Surface Mount 3 2.1 V, 3 V, 3.1 V 18 mcd, 28 mcd, 45 mcd - 4 - - Rectangle 475 / 535 / 629 nm 1.5 x 1mm -
RS Stock No. 752-6880
Mfr. Part No.SMLE13WBC8W1
BrandROHM
HK$37.729
Each (In a Pack of 10)
units
White 1608 (0603) Surface Mount 1 2.9 V 120 mcd - 2 - - Rectangle - 1.6 x 0.8 x 0.36mm -
RS Stock No. 752-6704
Mfr. Part No.SML-012PTT86A
BrandROHM
HK$2.82
Each (In a Pack of 10)
units
Green 3020 (1208) Surface Mount 1 2.1 V 18 mcd - 2 - - Rectangle 564 nm 3 x 2mm -
RS Stock No. 700-8017
Mfr. Part No.SML-A12MTT86
BrandROHM
HK$3.664
Each (In a Pack of 5)
units
Green 1613 (0605) Surface Mount 1 2.1 V 40 mcd - 2 - - Rectangle 570 nm 1.6 x 1.15 x 0.55mm -
RS Stock No. 752-6916
Mfr. Part No.SMLP13WBC8W1
BrandROHM
HK$2.594
Each (In a Pack of 10)
units
White 1006 (0402) Surface Mount 1 2.9 V 150 mcd - 2 - - Rectangle - 1 x 0.6 x 0.2mm -
RS Stock No. 752-6815
Mfr. Part No.SMLA12BC7TT86
BrandROHM
HK$3.242
Each (In a Pack of 10)
units
Blue 1613 (0605) Surface Mount 1 2.9 V 16 mcd - 2 - - Rectangle 475 nm 1.6 x 1.15mm -
RS Stock No. 169-0563
Mfr. Part No.SML-810MTT86
BrandROHM
HK$0.786
Each (On a Reel of 3000)
units
Green 3412 (1305) Surface Mount 1 2.6 V 16 mcd - 2 - - Rectangle 570 nm 3.4 x 1.25mm -
RS Stock No. 169-9319
Mfr. Part No.SMLMN2ECTT86C
BrandROHM
HK$1.596
Each (In a Pack of 25)
units
Blue, Green SML-M1/MN Surface Mount 1 3 V 140 mcd 70mW 2 - - Rectangle 527 nm 2 x 1.25 x 0.8mm -
RS Stock No. 169-0573
Mfr. Part No.SML-D12Y8WT86
BrandROHM
HK$0.411
Each (On a Reel of 3000)
units
Yellow 1608 (0603) Surface Mount 1 2.2 V 63 mcd - 2 - - Rectangle 590 nm 1.6 x 0.8 x 0.55mm -
RS Stock No. 169-0564
Mfr. Part No.SML-811DTT86A
BrandROHM
HK$1.094
Each (On a Reel of 3000)
units
Orange 3412 (1305) Surface Mount 1 1.95 V 22.4 mcd - 2 - - Rectangle 608 nm 3.4 x 1.25mm -
RS Stock No. 124-6867
Mfr. Part No.SML-D12Y8WT86
BrandROHM
HK$0.584
Each (In a Pack of 75)
units
Yellow 1608 (0603) Surface Mount 1 2.2 V 63 mcd - 2 - - Rectangular 593 nm 1.6 x 0.8 x 0.55mm -