Skip to main content

Can you still recognize components when cut in half?

First of all, we cut in half the most common electronic components that everyone sees every day-LED. As far as electronic components are concerned, almost only LED lights are what we can see every day because everything else will be hidden by the packaging.

LED Red and Clear

Then cross-cut from the centre, you can see that the real luminous substance inside the LED is very small.

Cross Section of a Red LED

You should have seen a lot of diodes, but have you seen its internal structure?

Cross Section of a diode

This is a 2N3904 transistor, most of the inside is packaged, and its core component is only a small point.

Cross Section of a 2N3904 diode

What kind of capacitor is shown below, it is difficult to judge just by looking at the cross-section.

Cross Section of a Capacitor

But cut it vertically, then everyone should be able to recognize it. This is the filter capacitor. We have all learned the principle of capacitance: two energized electrodes, and then close together, there is an electric field in between.

Cross Section of a Capacitor - Vertical

Coss section of a Polyester capacitor:

Cross Section of a Polyester Capacitor - Top View

Cross Section of a Polyester Capacitor - Side View

SMD capacitors are one of the most used capacitors today

Cross Section of a SMD Capacitor

What kind of capacitor is this? Let's take a close look at it! - Ceramic!

Cross Section of a Ceramic Capacitor

Racheal1 has not written a bio yet…
DesignSpark Electrical Logolinkedin