Top 3 Electronics Project With Diac, LED & C945 - JLCPCB

Do you searching for cheap and simple electronics projects, then this project is for you. In this project, I will teach you to make 3 simple electronics project circuits. You can make this circuit at home easily. You also use this circuit as like school project college project and university project.

To watch the video, click here.

Project No - 1

Project Name - Blinking 5 mm LED with AC voltage

Project No - 2
Project Name - Touch switch circuit using silicon transistor.

Project No - 3
Project Name - Connect 5mm LED with AC volt.

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Component list -

1. LED – 5 mm

2. Capacitor - 10µf/25v

3. Rectifier Diode – 1N 5399

4. Resistor – 47 KΩ (1watt)

5. Diac – DB3

6. Power Source – AC Voltage

Circuit Connection -

To make this circuit, 1st we connect the led positive leg with diac. Then connect capacitor negative leg with LED negative leg and connect capacitor positive leg with diac. Now connect diode positive leg with capacitor positive leg & connect a resistor with capacitor negative leg.

Now we connect the power source with the circuit. Connect AC cable with the empty terminal of resistor and negative leg of the diode.

The circuit contains AC voltage ⚡. If you are a beginner, then you should use a separator.

Now just plug in AC voltage & enjoy the circuit.

Component list :

1. LED – 5 mm

2. Transistor – C 945

3. Resistor – 1 KΩ

4. Battery – 9 Volt

Transistor Pinout –

To make this circuit, we are using a silicon transistor. Its value C945. It’s an NPN transistor. The transistor contains 3 legs. These 3 legs have different names. If we count from the left side, then 1st no “Emitter”, 2nd no “Collector” & 3rd no “Base”.

Circuit Connection –

1st we connect the LED negative leg with the Collector of the transistor. Then we connect 1 kΩ resistor with LED Positive leg.

Now we connect 9v battery connector with the circuit. Connect battery connector positive cable with the empty terminal of resistor & connect battery connector negative cable with Emitter of the transistor.

Now we connect the battery connector with the battery. Our circuit is ready for use. Now just touch your finger with the Collector & Base of the transistor then the LED light will glow.

Now you can use your circuit as like school or college project. Enjoy the circuit.

Component List -

1. LED – 5 mm

2. Ceramic Capacitor – 102k/2kv

3. Rectifier Diode – 1N 5399

4. Resistor – 220 KΩ

5. Power Source – AC Voltage

Circuit Connection –

1st we connect rectifier diode positive leg with ceramic capacitor. Then connect a resistor with a ceramic capacitor. Now connect LED positive leg with the positive leg of the diode and LED negative leg with the resistor, that terminal is connected with the ceramic capacitor.

Our circuit is almost ready for use now. Now we connect this circuit with AC voltage. You can see that the LED light is glowing.