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LED diodes

A diode is an electronic component that allows current to pass in one direction and blocks the current flow in the other direction. This phenomenon was discovered in 1874 by Ferdinand Braun at point contacts on lead sulfide. The term diode is usually applied for semiconductor diodes that operate with a P-N junction or a rectifying metal-semiconductor junction. In semiconductor technology, the term diode refers only to silicon diodes with a P-N junction, while other variants are identified by name with suffixes, for example Schottky diode or germanium diode. Diodes are used for rectification, the conversion of alternating voltage to direct voltage. In addition, the semiconductor junction has other useful properties which are exploited in Zener, photo and light-emitting diodes and semiconductor detectors. Diodes are the components, which are essential in the workshop of every electronics passionate and professional. In Botland store we have prepared a wide range of products, where everyone can find what they are looking for.

Products: 254
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Bare Conductive Light Up Board - LED lamp with dimming function + proximity sensor

Light Up Board is a module of the capacitive, touch, dimmed and contactless light on a round printed circuit board with six white LEDs. The device can operate in one of the...
Index: BAC-11771
Index: BAC-11771
Waiting for delivery
Czas oczekiwania: ok. 10-30 dni
Regular price €33.72 Price €33.72

Set of SMD1206, SMD0805, SMD0603 LEDs - 90pcs

Set of 10 pieces of green, yellow and red diodes.
Index: LED-01459
Index: LED-01459
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Czas oczekiwania: ok. 10-30 dni
Regular price €4.63 Price €4.63

Power LED Star 1 W - blue with heatsink

Power LED blue with power 1W and with a heat sink.
Index: LED-02494
Index: LED-02494
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In stock, shipping 24 hours!
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Regular price €1.51 Price €1.51

Power LED Star 3 W - blue with heatsink

Power LED blue 3W with a heatsink.
Index: LED-02500
Index: LED-02500
Shipping in 24 hours
In stock, shipping 24 hours!
(Check quantity)
Regular price €1.60 Price €1.60

LED 5mm red flashing - 10pcs

LED flashing diode 5 mm red. Price for 10 pieces.
Index: LED-03314
Index: LED-03314
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Czas oczekiwania: ok. 10-30 dni
Regular price €0.84 Price €0.84

LED Green and yellow in holder

Set of two LEDs with a diameter of 3 mm in the dedicated holder.
Index: LED-03770
Index: LED-03770
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Czas oczekiwania: ok. 10-30 dni
Regular price €0.07 Price €0.07

Zener diode 1.3W 4.7V - 10pcs

Zener diode with a power of 1.3 W and a voltage of 4.7 V. The set includes 10 pieces.
Index: PAS-04960
Index: PAS-04960
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Czas oczekiwania: ok. 10-30 dni
Regular price €0.44 Price €0.44

Zener diode 1.3W 24V - 10pcs

Zener diode with a power of 1.3 W and voltage of 24 V. The set includes 10 pieces.
Index: PAS-04964
Index: PAS-04964
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Czas oczekiwania: ok. 10-30 dni
Regular price €0.44 Price €0.44

PicoBuck - 3x LED driver - 36V/330mA - SparkFun COM-13705

PicoBuck driver allows you to control three different LEDs on three different channels. The power of the LEDs can be adjusted by changing the voltage or through the cycle of...
Index: SPF-05982
Index: SPF-05982
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Czas oczekiwania: ok. 10-30 dni
Regular price €16.05 Price €16.05

FemtoBuck - 1x LED driver - 36V / 350mA - SparkFun COM-13716

FemtoBuck LED allows to control one LED. The power of the LED can be adjusted by changing voltage or by filling the PWM. The controller provides a constant current of 330 mA or...
Index: SPF-05983
Index: SPF-05983
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On request. Waiting time about 4-8 weeks.
Regular price €7.88 Price €7.88

Module with addressed RGB LED WS2811

Module with digital addressed diode RGB WS2811 with outputs with the raster of 2.54 mm, for mounting of goldpin connectors (included). It allows you to get any color with a...
Index: MOD-06904
Index: MOD-06904
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Czas oczekiwania: ok. 10-30 dni
Regular price €1.15 Price €1.15

LED RGB WS2811 - IP65 60LED/m, 14,4W/m, 12V - 5m - black

Individually addressed RGB LEDs located in a 5 m strip with a density of 60 diodes per meter. Each pixel consists of three RGB LEDs and can emit a color from 24-bit palette. To...
Index: LED-07152
Index: LED-07152
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Czas oczekiwania: ok. 10-30 dni
Regular price €32.33 Price €32.33

Historical Diode

The first device capable of letting electric current pass in one direction while blocking it in the other, was discovered in 1874 by Karl Ferdinand Braun with a galena crystal. At the beginning of the 20th century, copper oxide or selenium rectifiers were used to convert alternating current to direct current. This use applied through most of the century to charging batteries. In 1901, Peter Cooper Hewitt invented the mercury vapor rectifier, which was used for power applications until the 1970s. At the same time, seeking to improve the detection of radio waves, John Fleming developed the first electron tube (the vacuum diode), whose heated cathode emits electrons that the anode can pick up, while the opposite is not possible. The germanium or silicon semiconductor diode replaced vacuum tubes after World War II. The development of semiconductors has led to the creation of many varieties of diodes, exploiting the characteristics of the P-N junction, or, in the case of light-emitting diodes, the ancillary properties of the material.

Diode - the simplest semiconductor device

Despite its simple operation, the diode is a very useful component. Its primary function is to pass current in one direction only, while blocking it in the opposite direction. This phenomenon is called barrier polarization. Diodes are divided into different types, from the simplest to the most complicated devices. Advanced diodes work on the principle of non-linear current-voltage characteristics, which means that they can do more than just control the flow of current. It is also worth remembering that semiconductor diodes conduct electrical current when you exceed a threshold voltage in the direction of conductivity. Only temperature can affect the voltage drop of a diode, so this effect is used to measure it. In our offer we have prepared many diodes, which can meet the requirements of both professionals and amateurs. If in doubt, please contact our technical department, who will happily advise you on choosing the right product.

Different types of diodes

There are several types of diodes for different applications.

  • Light-emitting Diode (LED) light: This is one of the most popular type of diodes. This diode allows the transfer of electric current between the electrodes which produces light. The color of the light depends on the band gap of the semiconductor.
  • Avalanche Diode: This type of diode operates in reverse bias and applies avalanche effect for its operation. The avalanche diode is generally used for photodetection, where high levels of sensitivity can be achieved by the avalanche process.
  • Laser Diode: This type of diode is different from the LED type because it produces coherent light. These diodes are used in DVD and CD players and laser pointers.
  • Schottky Diodes: These diodes have lower forward voltage drop compared to ordinary silicon diodes with PN junction. The voltage drop can be somewhere between 0.15 and 0.4 volts at low currents, compared to 0.6 volts for a silicon diode.
  • Zener Diode: This type of diode provides a stable reference voltage, therefore is very useful and in large quantities. The diode works in reverse bias and fails on the arrival of a certain voltage.