Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 20th August 2002, 11:18 AM   #11
diyAudio Member
 
Join Date: Feb 2002
Location: Germany
Tiroth,

what is PSP and who makes them?

Thanks,

Eric
  Reply With Quote
Old 20th August 2002, 12:26 PM   #12
diyAudio Member
 
Join Date: Jul 2002
Location: Winona,MN
My reply to this post is a little off topic so I'll post a new one re: solid sate components and printed circuit boards.

Lee
  Reply With Quote
Old 20th August 2002, 12:41 PM   #13
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Quote:
Originally posted by capslock
For SMD caps, the situation is easy. Most SMD caps are ceramic, if film caps are available, they are Mylar (polyester). I haven't come across a polypropylene or polystyrene SMD cap yet.
I know at least one plastic material but I have temporarly forgot it what is was called. Poly-something with lots of "e"'s.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 20th August 2002, 12:49 PM   #14
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
SMD

Pros:
Small
Good HF performance
Cheap
Easy to get
Easy to pick with a machine

Cons:
Small! Can be hard to solder by hand and also be stressed by heat
Maybe negative properties due to it's small size

Fact

Most of our signal sources (through the whole chain) consists of SMD, (ADC, DAC etc).

I prefer to hold a low profile in this debate because I don't know at all the pros and cons when we talk the sound quality.

I suspect that many people have strong feelings in this matter but most of the negative parts comes from: Don't know anything, can't be good! Don't strangle me for this
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 20th August 2002, 12:52 PM   #15
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Quote:
Originally posted by lieven

6. if you found the bad smd unsoldering is harder and require hot air devices with special mouth for each different size IC.
Just use two solering irons! One works sometimes also. It's hard to burn a SMD component.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 20th August 2002, 01:06 PM   #16
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
Quote:
what is PSP and who makes them?
Sorry, that was a typo. I meant PPS film, a plastic. Corneil-Dubiler makes the PPS SMT caps I am using; I'd provide a link but I can't seem to get to Mouser. Digikey sells the radial Panasonic ECH-S series, PPS, and according to Harry decent sounding.
  Reply With Quote
Old 20th August 2002, 01:10 PM   #17
diyAudio Member
 
Join Date: Jan 2001
Location: Scandinavia
SMD's are small which is good if you want to pack stuff closely together.

For resistors in particular, it may be a problem that they are small as they may in some cases be modulated by the audio signal ...

Petter
  Reply With Quote
Old 20th August 2002, 01:45 PM   #18
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Lightbulb SMT (De)soldering

Quote:
Originally posted by lieven
I don't have an answer to quality of smd's (resistors or capacitors), but as a DIY or repair center you're confronted with:

1. little things that are harder to solder

This is typical for our society: ? don't work? trow away and buy new! It's cheaper....
This is NOT compatible with my DIY point of view.

My old eyeballs are already popping out even with +3.5 dioptrie glasses!
100 % agreed!
These SMT thingies were made and intended for machine insertion; NOT for hand soldering.
Yes repair? Repair business is almost dead here.
Buy a new one! Soldering my asynchronous reclocker with MC74VHC74 (SMT!) makes me feel making a spy beetle for the CIA.
  Reply With Quote
Old 20th August 2002, 01:51 PM   #19
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
Actually I don't think SMT are that hard to solder if you have the flip-up style magnifier. Shrink packages are a pain, but SOIC are large enough to individually solder the pads and even 0603 are not that bad.
  Reply With Quote
Old 20th August 2002, 02:31 PM   #20
tvi is offline tvi  Australia
diyAudio Member
 
tvi's Avatar
 
Join Date: Apr 2001
Location: Moonee Ponds, Vic, Australia
PPS = Polyphenylene sulphide,
Has properties fairly close to Polycarbonate.

PEN = Polyphenylene naphthalate

<a href="http://www.evox-rifa.com/n_america/film_capacitor_catalog.htm">Evox Rifa</a> make them along with many others



James
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Surface mount components! ungie Swap Meet 12 25th September 2009 01:41 PM
Surface mount components for analogue audio... Yes or no??? Pilbromatic Parts 26 6th August 2009 04:59 AM
Surface mount drive components? ak_47_boy Class D 3 10th June 2008 06:53 AM
Soldering Surface Mount Components Ulas Digital Source 2 14th April 2006 02:38 AM


New To Site? Need Help?

All times are GMT. The time now is 06:40 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2