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25x Capacitor 1206 10uF.

Classic capacitor 0603 100nF 50V, tolerance 10%. Most often used as a decoupling capacitor.
It comes in a pack of 50 pieces.

Resistor 0603 10k ohm with precision of 5%.

Resistor 0603 1k ohm with precision of 5%.

Optocoupler 4N35 is a device that electrically (by light, not by electricity) separates the two parts of the circuit. That means, if a short circuit occurs  on one part of the circuit or any kind of other error that causes malfunction of components, there won’t be any malfunctions to the second part of the circuit because there is no way (since they separated by light) to transfer the error.

To sum it up, this optocoupler is very common and generally, it can be used for all applications.

Come on, everyone knows what the NE555 is! It is unlikely that we could make anything in our store without it, since it is inevitable in any kind of education, and is also able to solve the “time” problems in any type of assembly. It is a timer and can be used to create a pulse oscillator, delays …

Although many do not know, there is a camera that can work with Arduino / Croduino. It is a CMOS camera, with VGA quality images that are connected to Croduino via I2C. Now it’s your turn to think of the application! Maybe combine with a motion sensor that could be activated if you someone entered the room?

The ceramic antenna at a frequency of 1575.42MHz corresponding GPS. Ideal with our SIM808 breakout.

18650 battery holder allows easy use of lithium batteries in 18650 packaging. Otherwise, soldering these types of batteries is not recommended because the high temperature makes them lose their capacity. If you do not have a spot welding machine, we recommend that you get this kind of battery holder and you won’t have any problems with the loss of capacity, and it will allow you to use the batteries easily.

Reed switch is a switch that is activated within the range of the magnetic field. Within its glass capsule, it has two metal wires that will move when they are near the magnet and thus “activate” switch.

MMBT4403 is the PNP transistor of general use in SMT SOT-23 package. More details in the datasheet.

Vibration sensor SW-18020 is actually a switch that reacts (connects) to vibration, ie. moves. Thus, when a force acts on the sensor, it is connected, and when the force does not work, it is not connected.

e-radionica.com has created a module with an LM393 voltage comparator using this sensor. Check it out here.

 • Dimensions: 4.5mm diameter, 10mm high

We all know these Mini DC motors, especially if you ever took apart any kind of toy. They’re everywhere, now and on Soldered as well. You can use it to make something useful or just reminisce about the times when you were younger.

A phototransistor is a component that is able to detect light. This phototransistor is special because (due to their dark lenses) it detects infrared (IR) light better than the other. Therefore, it is practical for fire detection, sunlight etc.

Soldered has created a module with an LM393 voltage comparator using this sensor. Check it out here.

Potentiometer of variable resistance of 10k which can be used on an experimental board, but it can also be installed in the housing. They can be used for various types of control, eg. Setting how the brightness of LEDs.

LM358 is probably the best known and most frequently used operational amplifier. One pack contains two op-AMPs, but one can be used as a buffer, and one to increase its voltage. It is very convenient and easy to use. Also, this is a dual supply op-amp, which means you can turn up positive and negative voltages.