How to solder on circuit board

Why do electronic projects not work? It has too many reasons. One of the most reasons that I found often is bad soldering. Here is a tip on how to solder circuit boards and wires.

It’s challenging and fun. To practice electronics soldering skills.

At first, I didn’t know any techniques. It makes me a waste of time. I don’t want you to be like me.

Good soldering

When I was a beginner. Most projects do not work in first. Because my solder joint is bad.

Look at the image below.

How to solder electronics for beginners. If not like bad solder join

It may cause an electric current does not flow through the circuit devices. Or sometimes, I soldered too much until a short circuit. These are all the reasons the project is not working.

Good soldering requires great skill. Experience and Which has how as follows.

how to solder on the circuit board

Let’s get started.

Do you have important tools?

You need to use a great tool to do that.

soldering iron

Buy at Amazon

To begin with, you should one of a good soldering iron.


Soldering Iron Kit Electronics, 60W Adjustable Temperature Welding Tool, 5pcs Soldering Tips, Desoldering Pump, Soldering Iron Stand, Tweezers

Buy at Amazon

To reduce problems in the long run. Your time is worth more than the money spent.  You should use this one can adjust watts or temperature.  The temperature regulation will reduce destroying on surface mount SMD devices.

While working a soldering iron has a temperature at tip very hot—about 300°C.
It is enough to melt tin and lead.

Always keep clean tip

Importance—you need to always keep the clean iron tip. Wipe the tip to clean on a damp sponge or Soldering Iron Cleaning Sponge.

Sold wire

Second, You need to use a good solder wire. This is a soft metal wire, usually mixed of tin and lead.
This is DIY pocket pack solder. To portable and lightweight with the division lead to shorter.


Normally we always buy big lead because worthy than small. My son buys new solder; DIA: 0.8mm 1LB TIN/LEAD 60/40. But He does not like it because too heavy and difficult to use. See above!

We saw the pocket pack solder. It is easier to use and lightweight. We may be able to modify a chemical pen that has run out of ink instead.

Put solder instead pen nibs

We roll lines lead to a coil. Then put down instead of pen nibs.

We try to work very well, happy Life easier


When the heat of the soldering iron to metal, zinc, copper surface. They get heat. Then, these surface are also hot enough to melt the solder wiring to cover these surfaces. Important, they should be clean!

Special soldering wire exists for Electronics work, which comes with an inner core of Flux or Rosin.

How to solder on circuit board

01-You should bend slightly device's leg

First, you should bend slightly device’s leg.

2. Bring a soldering iron tip to touch at the device’s leg and pad for about 3-5 seconds. To absorbs heating from the tip of the iron to them approximately 300 ° C.

02-Bring a soldering iron tip to touch at the device's leg

In normal use, you should setting watts at 20 watts for a beginner because of not too hot when used for semiconductor parts. My friends used this soldering iron it can setting watts for all parts

3. Now at the leg of the component will very hot like an iron tip. So you can feed a lead solder to touch the component’s leg until the solder melt full pad.

Do not feed solder to the tip of the iron.

3-feed a lead solder to touch the component's leg until the solder melt full pad

4. Then pull solder out, and still tip at solder joint for 3 seconds.

04-pull solder out, and still tip at solder joint for 3 second

5. You can complete the soldering.

06-Use wire cutters to cut each wire just above joint

6. Use wire cutters to cut each wire just above joint, be carefully cut into solder joint.

How to choose wire cutter

You should Soft Wire Cutter because you often use them. It should be made of Hardened Carbon Steel Construction.

Safety Glasses with Clear Anti Fog Scratch Resistant Wrap-Around Lenses and No-Slip Grips, UV Protection. Adjustable, Black & Green Frames

Also, it has An internal spring returns the tool to the open position, reducing operator fatigue.

Always wear safety glasses. While cutting the wire to the electronic device Sometimes it splashes far and very heavy.

How to solder wires together
The beginner asks me how to solder wires. It is also easy.

Helping hand and Smoke Absorbing Fan

Sometimes you need to use a helping tool.  It helps the wiring and the circuit board is easier.

Normally when we solder several electronics projects, always difficult
I see on internet people like to use a helping hand tool as Figure 1 below it bestseller on Amazon.

If I need to use it now but will buy at Amazon must to wait for 3 days or I don’t like to look for it in many stores. It is lost time.

So, I think to apply a lot of parts in my supply rooms, to make this tool.

Eventually, I can make the helping hand for solder, successfully, It is used very well in cheaper.

DIY helping hand and smoke absorbing fan for solder

Please see in the video below (you will understand better).

I use an Old sheet of plywood as base of this tool. Alligator clips hold with universal plate steel is used for hold our PCB or the parts. It is easy.

But Meanwhile solder will have too much smoke it is a danger for us. So I add a fan for Smoke Absorbing to the back. I use computer Fan 12-volts and build DC power supply to it use. It is also easy.

All this tool I use money is zero because all thing I apply from at home not buy new. But in future I will buy the solder smoke absorber because it can filter pollution.

Adding magnification to clearly view

When we are older, the eyes not good. Soldering electronic components are very difficult since the device is very small.
So we would like to add the magnifying glass to clearly increase to see the equipment up.

Your health is the most important. Let’s use Smoke Absorber.

New my Smoke Absorber and helper


  • Remove noxious fumes quickly, safely and efficiently.
  • The fan is fully adjustable, quiet, and long service life.
  • Portable and desktop design, easy to place and move, low noise and long life service.
  • The replaceable filter is made by urethane foam with refined, activated, high absorption carbon.

Related Posts

Do you have it yet? Buy Electronics Components


I always try to make Electronics Learning Easy.


  1. mujtaba

    thank you very much to teach how to soldering

  2. kumar vinod

    thankes to teach of this topic

  3. samuel khaule

    one thing you forgot is that after soldering the spot should be shiney. Adull or blackened spot means a weak joint. With all due respect.

  4. sal

    About a year now that ive been wanting to learn how components work but at first glace at any diagram of any kind makes me go cross eyeded for a sec any suggestions where or how to get started

  5. MR OHM 1970

    Thank You For a Wonderful Presentation!!!!!

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