Does Resistor Orientation Matter in Soldering Due to Color Bands?

Hello.

I read and ask questions.
I understand that it makes no difference which side the resistor is soldered in, e.g. https://www.google.com/search?q=rezystor&clie...CpwQ_AUIDigB&biw=1280&bih=888#imgrc=81klBoOys wDn7M:

There are four colors, I understand that it doesn`t matter which side I solder - brown or gold?
I understand that the colors mean the power of the resistor and nothing else?

Of course, I mean a resistor with two legs.

You can solder the resistor in any direction.

I dare say that it doesn`t matter which side and not the power but the resistance.

serwkomp wrote:

I understand that the colors mean the power of the resistor and nothing else?

NO. Resistor resistances.

Which side you solder doesn`t matter.

Thank you for your help. I soldered a resistor to the LED lamp, I soldered the resistor once, starting from the brown color, the lamp lights up and then, inversely, from the gold color to the LED leg, the lamp also lights up. So I thought I`d ask if soldering the resistor would be good anyway and wouldn`t burn the LED.

The side is indifferent. Just like you take a regular light bulb and connect it to a battery. The colors indicate the resistance value but do not indicate the power. The size of the resistor determines its power. Here it is not as obvious as in the case of resistance. In any case, if you take more power and you don`t mind how much space it takes up, it`s always better than taking too little power. Then the resistor will overheat and eventually burn out.

However, my friend, the author, should read something . I haven`t seen a question at this level for a long time.

I would suggest soldering the resistor in such a way that the direction of reading its value is the same as its markings on the board. It will be easier to read when needed.

_jta_ wrote:

I would suggest soldering the resistor in such a way that the direction of reading its value is the same as its markings on the board.

Dude, don`t joke - even equipment manufacturers don`t follow this rule.

sosarek wrote:

even equipment manufacturers do not apply such a rule

And this depends on the manufacturer.

If the manufacturer does not intend to repair the equipment in the event of damage to the electronics, then the orientation of resistors is unnecessary.

Certainly decent designs (especially visible in THT elements) had resistors oriented this way.

_jta_ wrote:

I would suggest soldering the resistor in such a way that the direction of reading its value is the same as its markings on the board. It will be easier to read when needed.

This is such "pedantism". When I read the resistor values on the board of a given device, I don`t even pay attention to how it is soldered. I just know that it is of such value and that`s it.

A simple question. The simple answer has already been given. Maybe Learned Heads would stop cluttering up the topic and the Forum!?
Unless they increase their rank, that`s a different story...

_jta_ wrote:

I would suggest soldering the resistor in such a way that the direction of reading its value is the same as its markings on the board. It will be easier to read when needed.

Well, I wouldn`t have thought of that. From now on, I will look at all devices to see how the resistors are mounted. Like all over the world, the price for repair is much higher because the manufacturer did not provide for the repair.

szogun wrote:

A simple question. The simple answer has already been given. Maybe Learned Heads would stop cluttering up the topic and the Forum!?
Unless they increase their rank, that`s a different story...

Well, your post is an example of increasing your rank. It adds absolutely nothing to the topic. Just like mine now. Anyway, mine can now be deleted to the trash. The important thing is that the author now knows more about the question asked.

If the manufacturer puts it in as it pleases, it`s no wonder. Serial production, so no one cares about aesthetics and comfort, but about quantity.
Personally, in my designs I use the rule that resistors can be read from left to right or top to bottom (assuming one side of the PCB as the base/bottom).
This is of course not mandatory - if you do not solder the resistor, it will still work the same, but first of all, such a "tidy" board looks more aesthetically pleasing, and it is also easier to avoid reading errors if, for example, the resistor burns out or changes color.
I remember the times when only the right resistors had numbers and letters printed on them, and it was incredibly annoying when the manufacturer (the lady on the tape) soldered such an inscription to the board. Perhaps this is where my love for systematizing the arrangement of elements comes from - why go against it if you can make your life easier without much effort?

I have the same habit, also in SMD. I look through the magnifying glass and everything is clear to me, without any combination.

yogi009 wrote:

I have the same habit, also in SMD

Me too. Whether through-hole or SMD.

398216 Usunięty wrote:

Personally, in my designs I use the rule that resistors can be read from left to right or top to bottom

I guess everyone who cares about aesthetics has done this. I always made sure that the resistor was soldered evenly. When soldering the first leg, I took pliers (or tweezers) and positioned the resistor so that it was parallel to the neighboring elements.
Often, in factory products, assembly was much less aesthetic.

398216 Usunięty wrote:

I remember the times when only the right resistors had numbers and letters printed on them, and it was incredibly annoying when the manufacturer (the lady on the tape) soldered such an inscription to the board.

It was really annoying, because you had to unsolder at least one of its ends to see its value. After entering the barcode, the problem resolved itself. By the way, do you remember resistors that had values given in the form of colored dots? However, these had radial leads, and the mentioned value in such resistors was always at the top.

zybex wrote:

the mentioned value in such resistors was always at the top.

Theoretically. It depended on the installer.

arturavs wrote:

zybex wrote:

the mentioned value in such resistors was always at the top.

Theoretically. It depended on the installer.

I meant resistors with radial leads, not axial ones.

zybex wrote:

I meant resistors with radial leads, not axial ones.

They must have been quite powerful?

Once, I left a few boards for my "ex" to solder. In fact, she soldered. But each resistor basically goes in a different direction.
I asked why so? and not equally? That is, the tolerance bar is on the right side.

"I thought the tile would look nicer this way"

What was I supposed to say? It worked.

arturavs wrote:

They must have been quite powerful?

Not at all. They were used, among others, in small portable radios. I used to have quite a few of these types of resistors. Today I don`t know if I could find even one at home.

zybex wrote:

Do you remember resistors that had values given in the form of colored dots?

I even have a dozen or so 0.5 Ohm 0.5 W of these... (axial leads).

If I find the ones I wrote about in the junk somewhere, I will post a photo. As you can see, not everyone even knows about the existence of such resistors. So-called capacitors are probably equally rare. "potato" boxes or others in glass casings sealed on the sides with tar or some kind of adhesive.

As for resistors (old ones, with dots or letter-digit descriptions), there is no problem - they can be used even today, nothing bad will happen to them (unless someone helps... ). However, you won`t see "potatoes" or capacitors covered with tar today, and their possible use (if someone still has something like this in their collection) doesn`t make any sense; At the time of production, they did not have excellent parameters, and after many years - even when lying in a box - unfortunately, they lose their parameters. In devices operating several hours a day (e.g. in RO), where they were installed, after a few years they began to "swell" (potatoes), resembling the appearance of a potato pulled out of a fire and split in half - hence the name - and to this day, none of them have been used. survived due to the need for replacement.

When writing about old types of capacitors or even resistors, I did not mean to use them. Many young people have simply never seen such elements and it is worth at least mentioning them sometimes. For example, there were popular germanium transistors painted with black paint that could be easily scratched off. In this way we had a phototransistor useful in many projects.

zybex wrote:

I didn`t mean to exploit them

And me too. I was simply trying to explain the history of such terminology At the same time explaining that not everything that is "old" is necessarily bad. While reading topics on the forum, I saw at least a few in which the authors started the repair (regardless of what the fault was) by replacing e.g. capacitors because "if they are old, they are definitely worn out", while many 30-year-old and even older capacitors are still fully efficient. Similarly, resistors - "...the resistor got hot, so I replaced it"... While in fact the only correct method of verifying whether a given element qualifies for replacement is measurement - with an appropriate tester (e.g. there were electrodes in the store), or even an ohmmeter, a meter with a diode or transistor test function.

zybex wrote:

arturavs wrote:

zybex wrote:

the mentioned value in such resistors was always at the top.

Theoretically. It depended on the installer.

I meant resistors with radial leads, not axial ones.

I remember these, I haven`t played with electronics yet, but I saw them in some equipment, they didn`t have wires at the ends, but narrow plates pointing in one direction, for soldering, so you would have to be very stubborn to solder them in the opposite direction. And the dots were just at the front.