Top 2 Electronics Project Using Transistor & Diac - JLCPCB

In these two projects, we’ll teach you to make two awesome electronics projects. It is a very cheap electronics project & you can use this project as like school project, college project. To make this simple electronics project, you might need some electronics projects. Let’s introduce these electronics components.

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Project No – 1

Project Name – AC Line/Volt LED Blinker

Component List –

1. LED – 5mm*4

2. Diac – DB3

3. Capacitor - 10µf/50v

4. Resistor – 100 KΩ

5. Diode – 1N5399

6. Power Source – AC Line/Volt

7. AC Cable

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Project No – 2

Project Name – Single LED Flasher/ 3v LED Flasher Using DC 12v

Component List –

1. Transistor – BC547

2. Resistor – 3.3 KΩ

150 Ω

3. LED – 5mm

4. Capacitor - 47µf/25v

5. Power Source – DC 12v

For all kinds of transistors, there are different pinouts. For BC547 Transistor, if we count it’s the leg from left side then its 1st leg Collector, 2nd leg Base and 3rd leg Emitter & we have to remember that, it is a NPN transistor.

1st we make a series connection with these 4 LEDs & we check the led light using DC_12v. Now we connect Diac with Capacitor Positive Leg. Now we connect DC_12v Led Light. Connect LED Negative Leg With Capacitor Negative Leg & Connect LED Positive Leg With Empty Leg Of Diac. Now we connect the rectifier diode. Connect diode positive leg with positive led of capacitor & connect 100 KΩ resistors with capacitor negative leg.

Now We connect AC Cable with the circuit. Connect ac cable with the negative leg of diode & empty terminal of resistor. For safety we everybody should use a separator.

Our circuit is now ready for use. Now just Plug-In AC cable & enjoy the circuit.

1st Connect led positive leg with the collector of the transistor. Connect Capacitor positive leg with the emitter of the transistor. Now Connect 150 Ω resistor with led & capacitor negative leg. Now we connect 3.3 KΩ resistors. Connect 3.3 KΩ resistors with the emitter of the transistor.

Now we connect Power Cable. For the power source, we are using DC-12v. Now connect DC-12v positive cable with 3.3 KΩ resistor & connect DC-12v negative cable with the negative leg of the capacitor.

Our circuit is now, ready for use. Just plug-in DC-12v & Enjoy the LED flasher circuit.