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Questions tagged [tolerance]

A window of acceptance, often expressed as a percentage, in which a non-perfect value is still accepted as usable.

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4
votes
1answer
1k views

4/5 band resistor - extra black band

I have two resistors which need to be replaced. I tried to determine the value, but it can't make sense of these black bands: For reference the bands are: brown - silver - green - brown - black ...
35
votes
8answers
7k views

Are two (or N) resistors in series more precise than one big resistor?

Let's say I have one 2 kΩ resistor with 5% tolerance. If I replace it with two 1 kΩ resistors with 5% tolerance, will resulting tolerance go up, down, or remain unchanged? I'm bad with ...
27
votes
10answers
9k views

Can a 10% resistor be used as a 1% resistor?

If my schematic calls for a 1% resistor, can I use a 10% resistor that measures to the correct resistance within 1% or is there some quality to tolerance beyond what it measures Ohm-wise? For example,...
9
votes
9answers
6k views

Reducing the tolerance of resistors manually

All the resistors available come with a finite amount tolerance. This is undesirable particularly in highly sensitive systems. While we can use resistors with the least tolerance available, I want to ...
5
votes
2answers
9k views

Parts tolerance simulations in ltspice

I just recently found this tutorial (and various other places mentioning a similar technique) when trying to evaluate how one of my circuits behaves when using real world components with real world ...
15
votes
6answers
5k views

Why are we still using resistors with %5 tolerance while they can even manufacture a 14.318182MHz crystal?

Year is 2012 and I can only find %5-tol resistors in the local market. They can make transistors at molecular scale, they can manufacture 14.318182MHz crystals, they can place trillions of flip-flops ...
12
votes
6answers
3k views

Resistors - binning and weird distributions

I read about a little quirk related to binning resistors in a comment on this recent question. Some manufacturers will sell, for example, 1% and 5% resistors that are really made in the same batch. ...
4
votes
1answer
3k views

How to calculate aging tolerance of Resistor?

I wanted to calculate the worst case minimum and maximum value of Resistor 1K by considering all the tolerances(initial tolerance,temperature,environmental factors and aging). Here is the link for ...
0
votes
2answers
518 views

Replace Tight Capacitors for Better Tolerance?

There are some capacitors (10 \micro F and 4.7 \micro F) which are limiting my development of Raspberry Pi Hats because they are provided only with tolerance of 10% or greater. It seems that the ...
5
votes
1answer
193 views

Why so much variance in the continuity beeper threshold? How do these beepers work anyway?

In this answer it is mentioned that the EEVBlog-branded BM235 meter has a threshold of between 30 and 480 ohms for its continuity beeper (as seen on page 25 of the datasheet). My first thought was "...
0
votes
1answer
54 views

lm35 Temperature Readings are not right after sealing with Hot-melt adhesive (How mush has it Soldering max Temp toleration ?)

I need to seal the LM35 temp sensor so, I used this device for sealing it: The code I have used are: ...