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

166 Products showing for Laser Diodes

Last RS stock
ams OSRAM PLPT9 450LB_E Blue Laser Diode 447 nm 5 W, 2-Pin TO-90 package
  • RS stock no. 226-1791
  • Mfr. Part No. PLPT9 450LB_E
Subtotal (1 unit)
R 704,86(exc. VAT)
R 704,86/unit
In Stock
ams OSRAM Laser Diode 912 nm 75000 mW, 2-Pin Plastic package
  • RS stock no. 279-0689P
  • Mfr. Part No. SPL PL90AT03
Subtotal 1 unit (supplied in a bag)
R 312,84(exc. VAT)
R 312,84/unit
In Stock
ams OSRAM Laser Diode 949 nm 6.5 W QFN package
  • RS stock no. 230-9929P
  • Mfr. Part No. V205Q131A-940
Subtotal 1 unit (supplied on a continuous strip)
R 278,97(exc. VAT)
R 278,97/unit
In Stock
ROHM RLD65MZT7-00A Red Laser Diode 660 nm, 3-Pin
  • RS stock no. 223-6339
  • Mfr. Part No. RLD65MZT7-00A
Subtotal (1 unit)
R 250,21(exc. VAT)
R 250,21/unit
In Stock
ams OSRAM PLT5 450GB Blue Laser Diode 450 nm 100 mW, 3-Pin TO-56 package
  • RS stock no. 271-1821
  • Mfr. Part No. PLT5 450GB
Subtotal (1 unit)
R 428,73(exc. VAT)
R 428,73/unit
Last RS stock
ams OSRAM PLT5 522EA_Q Green Laser Diode 530 nm 20 mW, 3-Pin TO-56 package
  • RS stock no. 241-3842
  • Mfr. Part No. PLT5 522EA_Q
Subtotal (1 unit)
R 142,38(exc. VAT)
R 142,38/unit
Last RS stock
ams OSRAM SPL TL90AT03 Laser Diode 905 nm 65000 mW, 3-Pin TO-56 package
  • RS stock no. 234-7953
  • Mfr. Part No. SPL TL90AT03
Subtotal (1 unit)
R 285,33(exc. VAT)
R 285,33/unit
In Stock
ROHM RLD65PZX2-01A Red Laser Diode 660 nm, 3-Pin
  • RS stock no. 223-6345
  • Mfr. Part No. RLD65PZX2-01A
Subtotal (1 unit)
R 232,23(exc. VAT)
R 232,23/unit
Temporarily out of stock
ams OSRAM PLPT9 450LC_E Blue Laser Diode 455 nm 5500 mW, 2-Pin TO package
  • RS stock no. 361-625
  • Mfr. Part No. PLPT9 450LC_E
Subtotal (1 unit)
R 778,38(exc. VAT)
R 778,38/unit
In Stock
ROHM RLD63NPC8-00A Red Laser Diode 635 nm, 3-Pin
  • RS stock no. 223-6337
  • Mfr. Part No. RLD63NPC8-00A
Subtotal (1 unit)
R 554,88(exc. VAT)
R 554,88/unit
Limited stock
ams OSRAM PLT5 520DB_P Green Laser Diode 515 nm 10 mW, 3-Pin TO-56 package
  • RS stock no. 271-1825
  • Mfr. Part No. PLT5 520DB_P
Subtotal (1 unit)
R 312,37(exc. VAT)
R 312,37/unit
In Stock
ROHM RLD65NZN5-00A Red Laser Diode 670 nm 10 mW, 3-Pin 5.6 mm CAN package
  • RS stock no. 264-909
  • Mfr. Part No. RLD65NZN5-00A
Subtotal (1 pack of 5 units)
R 330,48(exc. VAT)
R 66,096/unit
In Stock
Wurth Elektronik Laser Diode 850 nm 2100 mW
  • RS stock no. 240-7044P
  • Mfr. Part No. 159353850A6300
Subtotal 1 unit (supplied on a continuous strip)
R 333,88(exc. VAT)
R 333,88/unit
In Stock
Wurth Elektronik 159353850A6300 Laser Diode 850 nm 2100 mW
  • RS stock no. 240-7044
  • Mfr. Part No. 159353850A6300
Subtotal (1 unit)
R 333,88(exc. VAT)
R 333,88/unit
In Stock
Wurth Elektronik 159353940B1300 Laser Diode 950 nm 6600 mW, 4-Pin
  • RS stock no. 238-5933
  • Mfr. Part No. 159353940B1300
Subtotal (1 unit)
R 401,50(exc. VAT)
R 401,50/unit
In Stock
Wurth Elektronik 159353940A6300 Laser Diode 950 nm 6600 mW, 4-Pin
  • RS stock no. 238-5931
  • Mfr. Part No. 159353940A6300
Subtotal (1 unit)
R 401,73(exc. VAT)
R 401,73/unit
In Stock
ams OSRAM Blue Laser Diode 450 nm 100 mW, 3-Pin TO-38 package
  • RS stock no. 271-1817P
  • Mfr. Part No. PLT3 450GB
Subtotal 1 unit (supplied in a tray)
R 507,96(exc. VAT)
R 507,96/unit
In Stock
ams OSRAM Laser Diode 907 nm 65000 mW, 1-Pin QFN package
  • RS stock no. 271-1835P
  • Mfr. Part No. SPL S1L90H_3
Subtotal 1 unit (supplied on a continuous strip)
R 285,33(exc. VAT)
R 285,33/unit
In Stock
Wurth Elektronik 159353940B1300 Laser Diode 950 nm 6600 mW, 4-Pin
  • RS stock no. 238-5933P
  • Mfr. Part No. 159353940B1300
Subtotal 1 unit (supplied on a continuous strip)
R 401,50(exc. VAT)
R 401,50/unit
In Stock
Wurth Elektronik 159353940A6300 Laser Diode 950 nm 6600 mW, 4-Pin
  • RS stock no. 238-5931P
  • Mfr. Part No. 159353940A6300
Subtotal 1 unit (supplied on a continuous strip)
R 401,73(exc. VAT)
R 401,73/unit
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