Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Damaged Electronic components

Status
Not open for further replies.

tennythomas

Member level 2
Joined
Jul 23, 2010
Messages
48
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,583
Hi,

Please give me a list of electronic components which can be damaged in the storeroom (before soldering)?

Thanks in advance.
 

Prototyp_V1.0

Advanced Member level 2
Joined
Apr 3, 2007
Messages
670
Helped
119
Reputation
238
Reaction score
83
Trophy points
1,308
Location
Norway
Activity points
5,051
Hi.

What's the big deal with the room of yours. Is it heat, cold, salt?
I know salty environoment would get components to rust over time. But I think it's quite random what components that fails first.
 

keith1200rs

Super Moderator
Staff member
Joined
Oct 9, 2009
Messages
10,877
Helped
2,065
Reputation
4,130
Reaction score
1,597
Trophy points
1,403
Location
Yorkshire, UK
Activity points
57,269
Solderability is affected with time even in a clean atmosphere I think.

Keith
 

sghosh

Newbie level 6
Joined
Jul 28, 2010
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Durgapur
Activity points
1,379
What you all people use to remove oxidized leads (say you have lots of parts buy in bulk 5 years ago and now need to use some of them, but oxidized leads not letting you solder)

Any chemical to remove oxidized leads?

Sanding/filing oxidized leads not always possible, for example, SMD components - what you use then?
 

Tahmid

Advanced Member level 5
Joined
Jun 17, 2008
Messages
4,758
Helped
1,792
Reputation
3,576
Reaction score
1,651
Trophy points
1,393
Location
Silicon Valley, California, USA (from Dhaka, Bangl
Activity points
30,539
What I do is, I get a cutter knife.
One of these:
41_1312911996.jpg

Then I remove the oxide layer with the cutter knife.

Hope this helps.
Tahmid.
 
Last edited:

keith1200rs

Super Moderator
Staff member
Joined
Oct 9, 2009
Messages
10,877
Helped
2,065
Reputation
4,130
Reaction score
1,597
Trophy points
1,403
Location
Yorkshire, UK
Activity points
57,269
You can get PCB cleaners such as this EraserCleanerBlock but I am not sure if they would be suitable vor SMD legs. You can also get liquid/aerosol cleaners such as Ambersil6130 but again, I am not sure if they would be suitable for components.

Keith
 

Nick C.

Full Member level 5
Joined
Dec 19, 2002
Messages
281
Helped
33
Reputation
66
Reaction score
25
Trophy points
1,308
Activity points
2,209
A rubber eraser often works to clean up the leads, and a slightly aggressive flux (I like Kester 186)
sure does help when soldering older parts. It's a pain to clean the residue after soldering, however.

I try to keep my stored parts as dry as possible, in sealed moisture-barrier bags with lots of dessicant inside.
 

asimkumar

Member level 4
Joined
Jan 1, 2011
Messages
78
Helped
8
Reputation
16
Reaction score
7
Trophy points
1,288
Location
Chandigarh, India
Activity points
1,755
i have seen one datasheet (section:humidity sensitivity and soldering)of a opamp suggested to heat the ic at about 80 deg C before soldering.
**broken link removed**
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top