Questions tagged [colour-coding]
Colour coding is about using choosing colours to indicate different things such as the function of wires in a cable or the the resistance value of a PTH resistor.
44 questions
1
vote
3
answers
65
views
Determine of the colour of laser
I am currently working on a project which requires the the circuit to perform specific task if a specific colour of laser is detected (something like a basic remote control). Is there a sensor or a ...
1
vote
1
answer
212
views
What is the value of this resistor? I can't make sense of the colour-coding
I want to repair this kettle that stopped working after havings its internals wet, if I understood. It's a "Russell Hobbs 21040-70".
There is a resistor burnt. I can see the colors, but I'm ...
-1
votes
1
answer
535
views
Are there differences between SMD capacitors indicated by their colors? [closed]
I have been fixing a graphics card that has PCB damage, and I noticed some missing SMD capacitors. I replaced them with capacitors of approximately the same size, but the color is different.
Are there ...
6
votes
2
answers
2k
views
Why does this resistor not exist?
I have a 5W 5-banded resistor that shouldn't exist according to the color code chart and I've never come across this before.
The color bands are brown, green, silver, gold, black. Now looking at it in ...
- 71
0
votes
2
answers
830
views
Green box on PCB schematic
I have this schematic which is from the USB to UART section of an ESP32 development kit schematic. I'm fairly new to reading schematics and I'm just wondering what a few things are:
The green box
'...
- 15
0
votes
2
answers
1k
views
Just chopped two USB cables,but one of them looks unusual
I just chopped two USB cables but one of them has three white cables and one grey. The other wire has normal colouring of:-Black, Green, White, Red
First wire:
White
White(has single orangestrand)
...
1
vote
2
answers
724
views
Resistor with silver third band
This resistor, from the AC side of a power supply board, has a silver third ring and a white fifth ring. I've never seen such component before :
It reads between 8 and 12 ohms on the multimeter and ...
- 13
-3
votes
2
answers
316
views
How to find resistor from colour coding [duplicate]
While repairing my soldering iron I damaged a resistor.
I need to know the value of this resistor.
How can I find the value from its colour code?
12
votes
4
answers
2k
views
Purpose of resistor colour code [duplicate]
What would be the purpose of using a colour code for resistors instead of just printing their values?
- 147
0
votes
0
answers
38
views
Shunt Resistor Color Code wrong or different [duplicate]
For a project, I was tasked with identifying some components. To identify all the resistors, I use the digikey calculator which so far gave me correct values. However, with that specific resistor ...
1
vote
0
answers
77
views
Standards for colour of conductors of pre-assembled cables
We are designing a product for industrial energy storage systems. Multiple units are connected with pre-fabricated cable assemblies of 2-4 separate leads that are terminated in connectors unique to ...
- 681
9
votes
2
answers
4k
views
Phasing Order in IEC Color Codes
Currently, IEC 60445 international standard is used for conductor terminal color identifications. I've obtained different versions of the standard (2017 being the latest) and also IEC 60446, which was ...
- 125
0
votes
1
answer
158
views
Is there a colour standard for mains 'signal' wiring?
Hello I am currently wiring a mains powered chassis. I have relays which use mains voltage levels for controlling other mains voltage relays. I would like to differentiate between the signals by using ...
- 68
0
votes
1
answer
168
views
Is this a 4R9 resistor or somthing else?
After a power-peak due to a broken main electricity cable, me and my neigbours got some broken devices.
At our house only my motor cycle trickle chargers were connected. And all 3 got broken :(. ...
- 3
1
vote
2
answers
543
views
Resistor Value Help
I have two resistors that I'm trying to figure the values of.
One is black blue silver gold black
Second is black orange silver gold black
Can anyone help with these values?
- 21
-4
votes
2
answers
196
views
All electronic components have numeric values while resistors have colors: why is that? [closed]
I'm not an expert in this matter, so AFAIK the most part of electronic components have numeric values while resistors and few other components have colors: why is that?
Why there is not a standard for ...
- 133
2
votes
3
answers
5k
views
Are there any traditional colours to use for the wiring in a 4 mA - 20 mA current loop?
I am designing a cable that carries a 4 - 20 mA current loop.
Considerations:
The positive lead is connected to VCC.
The negative lead is connected to a 120 Ω resistor (other end of the resistor is ...
- 517
3
votes
1
answer
267
views
What is the right-most component in this picture?
I'm reverse engineering an old RF transmitter circuit and I can't seem to figure out if the right-most component is a 3 band resistor (+/- 20%) or a capacitor (as the label on the board would indicate)...
- 133
2
votes
1
answer
682
views
Value of 5-band resistor (current sense)
I have some blown current sense resistor and I don't know how to figure out the value of it. Resistor is blown so I cannot measure it.
Well, I know about standard rules, unfortunately none I know ...
- 5,528
0
votes
0
answers
731
views
Value of Green as Multiplier for an Inductor Color code
I was going through the Internet searching for the Color code table for an Inductor.
The more or less same table which I got is :
I have got an inductor :
So I cannot find out the Value of this ...
0
votes
1
answer
124
views
Is this a 0.25% "precision" bleeder resistor?
In the AC input section of a PCB, I found a resistor (in parallel with an X capacitor) with 5 color bands:
BLACK - GOLD - YELLOW - GRAY - BLUE(LIGHT BLUE)
...
- 1,281
0
votes
1
answer
5k
views
Wire color code on usb to lightning data cable (duracell manufactured by esi)
Hi so i have two duracell chare cables. One is 6 feet the other 10, the 10 foot broke so I purchased a 6 foot and was going to lengthen it. Since they are both duracell I figured wires would match ...
14
votes
6
answers
52k
views
What is the color code for CAN Bus?
I would like to know if there is any color code specified for CAN Bus communication wiring, maybe in ISO-11898-1? (I have no free access to the file)
I looked for any official documents without any ...
- 177
1
vote
1
answer
2k
views
Colors inside DIN 5 (MIDI) cable
Today about my first components in an electronic store. I'm currently making a MIDI IN circuit for my Raspberry PI.
My local shop didn't have male to male DIN 5 pin cables, as they seem to be ...
- 168
4
votes
5
answers
105k
views
Australian 3-Phase Colour Code Standard
We're ordering some machinery from China and need it manufactured to Australian electrical standards including the wiring colour code. Unfortunately we don't have any electricians or engineers that ...
- 163
4
votes
3
answers
380
views
SMD precision resistor color code (0805)?
We have specified some 0805 resistors to be 0.2ppm/C. On some boards/batches these are green. On others more "normal" looking. We specified Vishay. Is there some color code that indicates ultra-...
- 14.3k
1
vote
4
answers
99k
views
Which color should be soldered to which connector for an earphone jack [closed]
I have an earphone plug having four colored wires (gold, red, green, blue) and a jack with four connectors:
I need to know which colour should be soldered to which connector.
- 111
0
votes
2
answers
16k
views
How to test the voltage of a speed sensor and identify the +ve, ground and signal wires using a DMM?
I am a novice and would like to identify each of the wires going to a speed sensor.
Below is a photo of the connector from the mainboard (left) to the sensor (right):
Is it possible to identify ...
- 123
0
votes
3
answers
213
views
What is the correct way to read color codes? [duplicate]
For example,
The resistor above has four colors. Green, blue, red, gold.
My calculation says its value is 562 ohms +-10%. But this page says its value is 5.6K-1/4W. What is my mistake?
- 431
1
vote
3
answers
1k
views
It is possible to exist more than 1 color code for same resistance. Can i use all of these color-codes?
It is possible to exist more than 1 color code for same resistance-value. I doubt, is there any convention about use only one of them (while manufacture) .
Example : Say an 1 ohm resistor could be ...
user107801
1
vote
1
answer
147
views
Is there a common wire color for PGD and PGC?
Is there a common color for micro controller programming data and clock wires?
- 213
14
votes
1
answer
5k
views
What is a good methodology to identify small SMD components?
Having been in the position of trying to identify a strip of mystery 0603 components I found on my floor, I thought a good general question to pose to this community might be what a recommended set of ...
- 349
0
votes
1
answer
7k
views
Likely RS-485 color coding of three wires?
We received a piece of equipment (actually from an Italian manufacturer, if that gives a hint) which uses RS-485.
So, as well as a power connection the devices have THREE WIRES (bare wires) coming ...
- 466
1
vote
1
answer
7k
views
IF transformer color codes
Is there any standard color code available for IF transformers?
Generally in most of the Japanese radio receivers I see red color slug for MW oscillator, white and yellow slugs in AM IF stage, ...
-4
votes
5
answers
6k
views
Does the white wire carry any electrons?
I don't understand the neutral in 110V. Does it carry any current? Does a load like a light reduce the current?
- 1
3
votes
1
answer
6k
views
Red for +ve, black for 0v, ...which colour for -ve rail?
I'm bodging together a bench PSU from an old server PSU, about to order a mixed bag of terminal posts for the front panel but then tripped over the problem that I'm not sure what's the correct or most ...
- 7,209
-2
votes
1
answer
602
views
Resistor values? [duplicate]
How can one see what value a resistor is given the colors? For example, what's the value of Red - Orange - Green - Gold?
- 27
26
votes
5
answers
109k
views
Just chopped a cable, is red power, black ground?
I've just chopped a usb to micro-b usb cable.
There are 4 small wires inside
Red
Black
White
Green
Isn't it universal that Red is power and black is ground?
- 727
1
vote
4
answers
17k
views
what is the color code of cables in earphones?
What I see after stripping the cable is this:
copper-red and yellow on right channel
green and stripped red-gren on left
Whose are for ground and whose for signal ?
(edit: I'm asking this for ep-...
- 113
37
votes
4
answers
327k
views
Headphone wire color coding
How do I tell which wire is which if I have a copper wire, red and green coded wire? Is the unshielded copper wire ground?
- 705
-5
votes
5
answers
27k
views
14
votes
3
answers
26k
views
What do the colors of resistor bodies mean?
I don't mean the colored bands, but the colors of the bodies themselves. They come in brown, blue, green, etc. Is there a standard?
For instance, epanorama says:
But there are two resistor body ...
- 29k
1
vote
1
answer
7k
views
Thermistors' colour coding same as the resistors'?
WARNING: 30V was a mistake -- better to keep voltage down 12V as a beginner! I tested it over a very short time. Got the things hot over a long time with much less voltage -- apparently not enough ...
- 1,870
19
votes
7
answers
16k
views
Resistors with ends of the same colour
I know the values of resistors if they are gold-colored at the end. When both ends are the same, such as brown-o-p-brown and red-x-y-z-red, I am in problems. How to know which side has the last colour ...
- 1,870