Laser Diodes

Laser diodes are semiconductor devices which closely resemble an LED (light emitting diode).

How do they work?

Laser diodes work in a very similar way to LEDs, however they create a laser beam at its junction instead. They create a very precise beam of light which is ideal for applications which require an accurate reading of data. They are also capable of a very powerful output, which can be determined by their optical output power.

Laser diodes are available in a range of different packages, for example TO-38 and TO-56.

What colours are laser diodes?

The most common laser colours are red, blue and green. Their colour is described in wavelength, the same as an LED. Wavelength values are given in nanometers (nm).

• Red is around 660nm

• Blue is around 500nm

• Green around 550nm.

Laser diodes are also available with infrared (IR) light.

Where are laser diodes used?

• Fibre optic communications

• Barcode readers

• Laser pointers/pens

• Disc reading & recording

• Laser printing

• Laser hair removal devices


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Description Price Peak Wavelength Laser Type Optical Output Power Number of Pins Mounting Type Laser Colour Perpendicular Beam Divergence FWHM Parallel Beam Divergence FWHM Maximum Operating Current Dimensions Length Width Height Diameter
RS Stock No. 758-7810
Mfr. Part No.PL 450B
Brandams OSRAM
kr 381,48
Each
Units
460nm Continuous Wave 80mW 3 Through Hole Blue 25° 11° 165mA 3.08 (Dia.) x 3.8mm 9.65mm - 3.8mm 3.08mm
RS Stock No. 913-3594
Mfr. Part No.PL 450B
Brandams OSRAM
kr 260,934
Each (In a Tray of 200)
Units
450nm Continuous Wave 80mW 3 Through Hole Blue 25° 11° 165mA 3.08 (Dia.) x 3.8mm 9.65mm - 3.8mm 3.08mm
RS Stock No. 103-5072
Mfr. Part No.LNCT28PF01WW
BrandPanasonic
kr 132,122
Each (In a Tray of 480)
Units
665 nm, 791 nm - 300 mW, 380 mW 3 Through Hole - 19 / 19.5° 11.5 °, 13 ° 180 mA, 275 mA 5.15 x 1.65 x 3.75mm 5.15mm 1.65mm 3.75mm -
RS Stock No. 169-8102
Mfr. Part No.LNCQ28PS01WW
BrandPanasonic
kr 322,179
Each (In a Tray of 60)
Units
665nm - 100mW 3 Through Hole Red 19.5° 13° 180mA 5.6 (Dia.) x 3.95mm - - 3.95mm 5.6mm
RS Stock No. 814-1196
Mfr. Part No.LNCT28PF01WW
BrandPanasonic
kr 205,03
Each
Units
665 nm, 791 nm - 300 mW, 380 mW 3 Through Hole - 19 / 19.5° 11.5 °, 13 ° 180 mA, 275 mA 5.15 x 1.65 x 3.75mm 5.15mm 1.65mm 3.75mm -
RS Stock No. 877-5241
Mfr. Part No.LNCQ28PS01WW
BrandPanasonic
kr 364,74
Each
Units
665nm - 100mW 3 Through Hole Red 19.5° 13° 180mA 5.6 (Dia.) x 3.95mm - - 3.95mm 5.6mm
RS Stock No. 223-6356
Mfr. Part No.RLD78PZM7-00A
BrandROHM
kr 120,985
Each (In a Tray of 500)
Units
780nm Diode - 3 Through Hole Infrared - - - - - - - -
RS Stock No. 210-6851
Mfr. Part No.PLT5 450B
Brandams OSRAM
kr 346,69
Each
Units
450nm Diode 80mW 3 Through Hole Blue - - - - - - - -
RS Stock No. 223-6332
Mfr. Part No.RLD63NPC6-00A
BrandROHM
kr 138,174
Each (In a Tray of 500)
Units
635nm Diode - 3 Through Hole Red - - - - - - - -
RS Stock No. 223-6362
Mfr. Part No.RLD84NZJ2-00A
BrandROHM
kr 260,077
Each (In a Tray of 500)
Units
840nm Diode - 3 Through Hole Infrared - - - - - - - -
RS Stock No. 230-9926
Mfr. Part No.V205Q121A-940
Brandams OSRAM
kr 83,239
Each (On a Reel of 2000)
Units
949nm VCSEL 6500mW - Surface Mount Infrared - - - - - - - -
RS Stock No. 223-6341
Mfr. Part No.RLD65NZX1-00A
BrandROHM
kr 176,88
Each
Units
650nm Diode - 3 Through Hole Red - - - - - - - -
RS Stock No. 223-6366
Mfr. Part No.RLD85NZJ4-00A
BrandROHM
kr 362,581
Each (In a Tray of 500)
Units
850nm Diode - 3 Through Hole Infrared - - - - - - - -
RS Stock No. 226-1790
Mfr. Part No.PLPT9 450LB_E
Brandams OSRAM
kr 545,568
Each (In a Tray of 50)
Units
447nm Diode 5000mW 2 Through Hole Blue - - - - - - - -
New
RS Stock No. 238-1533
Mfr. Part No.SPL LL90_3
kr 232,54
Each
Units
895nm Diode - 3 Through Hole - - - - - - - - -
RS Stock No. 223-6363
Mfr. Part No.RLD84NZJ2-00A
BrandROHM
kr 361,80
Each
Units
840nm Diode - 3 Through Hole Infrared - - - - - - - -
RS Stock No. 224-9975
Mfr. Part No.PLT5 510
Brandams OSRAM
kr 176,12
Each
Units
515nm Continuous Wave - 3 Through Hole Green - - - - - - - -
RS Stock No. 179-6995
Mfr. Part No.LNC728MS01WW
BrandPanasonic
kr 437,68
Each
Units
783nm - 200mW 3 Through Hole Infrared 19° 11.5° 265mA 5.6 Dia. x 3.95mm - 5.6 Dia.mm 3.95mm 5.6mm
RS Stock No. 223-6357
Mfr. Part No.RLD78PZM7-00A
BrandROHM
kr 176,88
Each
Units
780nm Diode - 3 Through Hole Infrared - - - - - - - -
New
RS Stock No. 238-1535
Mfr. Part No.SPL PL90
kr 148,18
Each
Units
915nm Diode - 2 Through Hole - - - - - - - - -