Electronics Forum: lead (Page 321 of 790)

SMT LED functional failure

Electronics Forum | Wed Apr 16 20:22:13 EDT 2003 | praveen

Hi, I have taken the profile.The peak temp. at the lead terminal is 219 degc, duration above MP 54 sec and duration 125 deg C-160 deg C is 60 sec.

Skewed transistors

Electronics Forum | Wed Apr 23 03:49:13 EDT 2003 | jedduan

I think it will make some progess if you modify the program and let the component shift towards the lead orientation as possible while P&P.

Lead Free soldering profile for SMT

Electronics Forum | Fri Jun 06 07:15:28 EDT 2003 | davef

Which specific JEDEC standard are you talking about? It's very peculiar that JEDEC would publish such a standard.

Lead Free soldering profile for SMT

Electronics Forum | Fri Jun 06 10:47:27 EDT 2003 | Marc Peo

Kevin, Agree with John's thoughts on profiling and the max temp of 240 degrees in particular. To add to it a bit we have seen the following parameters put in place at many assembly houses to protect against overcooking the components: --Time above

URGENT: Best Display Tech For My Product

Electronics Forum | Wed Jun 18 11:05:26 EDT 2003 | Quantass

cal, hahahahaha. "40,000ft overview". Indeed! Thanks for the lead. I intentionally left out details such as $$$$ in hopes of obtaining a broad list of suggestions. From there I can better assess what to focus in on.

Leadfree component plating on Sn/Pb paste

Electronics Forum | Mon Jun 30 11:06:38 EDT 2003 | nifhail

Any further input guys ? What is the effect of reflowing lead free component with eutectic solder paste, as far realiability is concerned ? Input is very much appreciated. thank you

Hot Air Knife

Electronics Forum | Fri Jul 18 15:38:19 EDT 2003 | B.Saxon

If you are using wave pallets, you could attach copper thieves to the pallet to draw the solder away from the leads.

PCB Technology

Electronics Forum | Wed Jun 25 06:50:23 EDT 2003 | emeto

HI all, Can anyone give me more information or good www for PCB Technology. I am interested in materials for PCB's materials for pads, methods for making PCB, advantages and disadvantiges of the materials, which are now the leading technologies and i

Naming Files

Electronics Forum | Tue Jul 01 19:40:44 EDT 2003 | russ

Here is an opinion p.1/p.2 is %@##& stupid. Keeping files in different folders with the same name can lead to a mess if one person one time makes a one mistake. Could I call this company and order a p1? (rhetorical) Russ

Porosity in Good Plating

Electronics Forum | Wed Jul 16 21:48:43 EDT 2003 | sam

Dave, I believed you are really experienced in SMT soldering process. What I meant good connection, should really be "Visual check by naked eye OK". From your message, there are situation of "marginal solderability" that will lead to uncertainty


lead searches for Companies, Equipment, Machines, Suppliers & Information

PCB Handling with CE

Component Placement 101 Training Course
Conductive Adhesive & Non-Conductive Adhesive Dispensing

Software for SMT placement & AOI - Free Download.
High Throughput Reflow Oven

High Throughput Reflow Oven
2024 Eptac IPC Certification Training Schedule

World's Best Reflow Oven Customizable for Unique Applications
Electronic Solutions

High Resolution Fast Speed Industrial Cameras.