20x Zener Diode BZX55C3V9 3.9V 500mW DO-35 0.5W 3V9

LED Diode Assortment Kit 30 pcs 5mm red, green, yellow features:
- Lens color: red, green, yellow - diffuse
- Size: 5mm
- Operating current: 20mA
- Voltage (red) 1,8V-2,3V
- Voltage (green) 3,2V-3,4V
- Voltage (yellow) 1,8V-2,3V
- Anode (A): Positive (long leg): 28mm
- Catode (K): Negative (short leg): 25mm
- Operating temperature: -25ºC/80ºC
- Welding temperature: +260ºC
- Quantity: 30 units
*10x red
*10x green
*10x yellow

COB LEDs are built as a matrix of LEDs, that is, a concentration of LEDs in a silicone coated tablet. The advantages of LED COB: - a light output of up to 120 lumens / watt (twice as much as LED SMD)
- the light intensity is greater without the need to concentrate the beam of light
- greater durability
- opening angle of up to 160ºC
- multidirectional light Mount LED diode on a good heatsink, add some fan, this is necessary because you have to "remove" the heat from the surface of the plate so that the LEDs last longer to place a little bit of thermal silicone in each of the placement centers. the diodes.
The thermal paste increases the thermal transfer between the diode and the metal plate used as a circuit.

COB LEDs are built as a matrix of LEDs, that is, a concentration of LEDs in a silicone coated tablet. The advantages of LED COB: - a light output of up to 120 lumens / watt (twice as much as LED SMD)
- the light intensity is greater without the need to concentrate the beam of light
- greater durability
- opening angle of up to 160ºC
- multidirectional light Mount LED diode on a good heatsink, add some fan, this is necessary because you have to "remove" the heat from the surface of the plate so that the LEDs last longer to place a little bit of thermal silicone in each of the placement centers. the diodes.
The thermal paste increases the thermal transfer between the diode and the metal plate used as a circuit.

Low Signal High Speed ​​Switching.
These diodes are widely used to multiplex signals, such as buttons or digital inputs Characteristic:
- Reverse voltage: 100V,
- Forward voltage drop: 1V to 10mA,
- Forward direct current: 200mA,
- Maximum overvoltage current: 4A,
- Dissipated power: 500mW,
- Recovery time: 4ns,
- Configuration: Simple,
- Package: DO-35,
- Quantity: 30 units .

Red, yellow and green LED traffic light mini kit ideal for educational and beginner Arduino projects.

Through-hole LED for 12V DC with black and red 20cm cable.

• Diode type: with cable
• LED lens type: Clear
• Direct diode voltage: 12V
• LED colour: light yellow 
• The distinguishing feature: 12 V LED with 20 cm RoHS cable
• LED size: 3 mm

The perfect solution for not worrying about the length required on your RGB LED strip, now with a WiFi driver compatible with the eWeLink APP and voice assistants like Google Home or Alexa. Also includes a 24-key IR remote control.

You will be able to turn on and control your strip lights anytime and anywhere, and control it with just a click on your smart phone or tablet via APP eWeLink, or voice assistants, without time and distance limitations.

Strip of 300 warm white coloured LED lights, 5 metres long.

This module adapted for the arduino includes a laser diode and a 3-pin connector for a simple and quick adaptation with the Arduino. The diode is mainly used for laser toys, all kinds of level meter, instruments, stylus pen, mini LCD projector, remote listeners laser, alarm anti-theft light remote control. Light shots and different display can make the color of the image element a little different from the real object. The measurement allowed error is +/- 1-3 cm. Characteristic: - Supply voltage: 5VDC
- Connector of 3 pins:
1- GND
2- VCC
3- Light control of the laser diode
- Point mode: point facula
- Continuous output
- Operating temperature: -36 ° C - + 65 ° C
- Laser wavelength: 650nm (red)

Through-hole LED for 12V DC with black and red 20cm cable.

• Diode type: with cable
• LED lens type: Clear
• Direct diode voltage: 12V
• LED colour: light blue
• The distinguishing feature: 12 V LED with 20 cm RoHS cable
• LED size: 3 mm