Electronics Forum: height and tolerance and capacitor (Page 1 of 1)

Solder paste height and metal squeegees

Electronics Forum | Fri Apr 20 08:41:56 EDT 2001 | jimlew

For those of you out there, like myself who are still using 2-d to measure paste ht, I have 2 questions. 1. Typically, what tolerance are you applying to your ht? +- 1 mil, or what? 2. Are you using metal squeegees, and if so, have you found that squ

Re: resistor and capacitor naming codes for smt.

Electronics Forum | Mon Sep 28 09:18:30 EDT 1998 | Ben Wilmot

The majority of SMT resistors use the following notation. 10 X eg 153 represents 1k5 resistor The third digit in the sequence denotes the number of zeros to add after the first two digits giving the value in ohms. Many Caps will follow the same nota

IP1 and SSOP28

Electronics Forum | Tue May 18 21:43:02 EDT 2010 | ashley

Hello mickd, 1) The EL data & Vision_type is NOT necessary when using MCS30 for IP1 machine. note : your input of the above might have cause confusion during VP, hence the OS error. 2) I would suggest the following... 2a) lower the Lead_check_are

SPI and AOI IPC Requirements

Electronics Forum | Thu Jan 18 07:22:10 EST 2024 | klauss

Is there any stardarts to help us what tolerance values (max or min. height, weight, volume etc) should we use while programming AOI and SPI.

Re: Land patterns for 0612 and 0508 capacitors

Electronics Forum | Tue Nov 30 21:23:55 EST 1999 | cklau

hello; When we are doing component land pattern design , one thing will always be in our mind; that is the basic criteria or common land pattern design guideline for reflow and flow solder assemblies. For basic fomula in calculating resistors are:

BGA Pre and Post Soldered Height Tolerances

Electronics Forum | Fri Oct 01 14:16:15 EDT 1999 | Rick

I know there are a ton of variables that affect the overall height of a BGA after soldering to a PWB but... I'd like to know if anyone has done an analysis of (or if it's documented) as to what the pre and post reflow height dimension as measured fr

Laying down and holding large components

Electronics Forum | Thu May 22 13:31:52 EDT 2003 | Dave

If you have a component with a height issue and want to lay is down (capacitor in this case), what are the best methods to consider? RTV, epoxy or something else?

Selecting pick and place machine (comparison/personal experience/sales pitches)

Electronics Forum | Wed Apr 28 20:57:22 EDT 2021 | stephendo

It will be tough to get a good line for that cost. You might want to start by looking at Mydata and Juki for the machines. Ekra for the screen printer and Heller for the oven is where you might want to start. If you have not already you might want

Poka yoka tool for assembly of chip capacitors and resistros

Electronics Forum | Mon Sep 08 11:38:52 EDT 2014 | spoiltforchoice

They key requirement before any fancy tools is careful storage, stock control, labeling and handling. If your parts are incorrect before they even get to production, you're screwed. As gregp suggests, to get consistently correct value and orientation


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