## Electronics Forum: percent (Page 1 of 21)

### How do you tell what percent a SMT resistor is?

Electronics Forum | Thu Oct 16 13:02:26 EDT 2003 | davef

Measure the resistance of 100+ components and calculate the tolerance

### How do you tell what percent a SMT resistor is?

Electronics Forum | Thu Oct 16 13:18:13 EDT 2003 | jseagle

3 digits usually means 5% i.e. 103 = 10K 5% 4 digits means 1% i.e. 1002 = 10K 1% Otherwise you will have to use Dave's method.

### How do you tell what percent a SMT resistor is?

Electronics Forum | Thu Oct 16 10:56:23 EDT 2003 | james

We received some parts from our stores room with out a part number. We have 2 to choose from one being a 5% and one being a .1%. Does the color of the resistor mean anything? Just need some help on this. Thanks.

### How do you tell what percent a SMT resistor is?

Electronics Forum | Thu Oct 16 13:36:01 EDT 2003 | russ

The color does mean something, If you know the manufacturer their spec sheet will tell you. The three and 4 digit only applies to larger resistors, There are 1% 0603 that have only 3 digits. You may want to just call them all 5%. Russ

### How do you tell what percent a SMT resistor is?

Electronics Forum | Thu Oct 16 15:24:33 EDT 2003 | daanterstegge

An explanation that could possibly help (depending on the exact code on these parts) is on http://www.marsport.demon.co.uk/smd/res.htm. The author of this ends the page with a "Personally, I'd check with an ohm-meter!". Daan Terstegge http://www.smt

### Calculating Solder Volume

Electronics Forum | Thu Nov 08 21:46:09 EST 2007 | davef

In the marketing description of your paste, look for "percent metal by volume." This percent metal by volume figure gives you a good approximation of the amount of metal in each solder paste brick that you print on your board. In most solder paste fo

### Area to Diameter Conversion

Electronics Forum | Wed Jan 12 17:47:13 EST 2005 | Dreamsniper

I wanna make a MSExcel spreadsheet that will automatically convert Percent Area of a BGA void to Percent Diameter. What is the formula? Thanks and regards,

### does potato can absorbed the solder or lead

Electronics Forum | Thu Mar 02 21:03:44 EST 2006 | davef

A potato is: * 80 percent water * 20 percent solids Temperature: * Water boils at ~100*C * Your solder pot ~240*C If you want to try this experiment, talk someone else into doing it while you're on break.

### Air Moisture in Production

Electronics Forum | Thu Dec 09 02:27:41 EST 2010 | fönsi

Hi Dave! Thank you very much for your effort. So then we will try to increase humidity to about 40 percent rel. I think, we won't increase it to more than 40 percent because of the MSL-3 components. regards

### SMT Stencil design

Electronics Forum | Thu Mar 19 11:44:03 EDT 2020 | svajunasastrauskas

Hello, can someone share good practise how to calculate how many percent solder paste can be applied on solder mask for better solderability (by increasing stencil aperture). In eg, aperture is increased 30 percent, could it be more? Where find this

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