diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Parts (http://www.diyaudio.com/forums/parts/)
-   -   LM3875 socket (http://www.diyaudio.com/forums/parts/220755-lm3875-socket.html)

WSJ 30th September 2012 11:24 PM

LM3875 socket
 
I'm looking for a LM3875 socket. Single pin sockets would be OK.
The pins are .015" thick, .038" wide, .134" spacing in two rows. The pins come in two rows .200" front to back.

Data sheet LM3875:

http://www.ti.com/lit/ds/symlink/lm3875.pdf

davidsrsb 1st October 2012 12:14 AM

Normally you would never socket a power amp chip due to the high currents and the expensive consequences of a bad contact on the speakers

WSJ 1st October 2012 12:42 AM

Quote:

Originally Posted by davidsrsb (Post 3185558)
Normally you would never socket a power amp chip due to the high currents and the expensive consequences of a bad contact on the speakers

I agree, but it can be tested for many parameters without a load. Then moved to a board and soldered in for testing with a speaker.

See Opamp test circuits.
http://www.diyaudio.com/forums/analo...ml#post3185578

gmphadte 1st October 2012 04:19 AM

Other reason is the heatsinking property of the sodered pins.

Gajanan Phadte

davidsrsb 1st October 2012 02:00 PM

If the leads fit, the turned pin type of IC socket can be broken up and soldered into a pcb with appropriate sized holes. Twenty years ago I used to buy these pins on a metal header matching a dil IC size for in board soldering, but I haven't seen these for a long time.

WSJ 1st October 2012 10:05 PM

1 Attachment(s)
Quote:

Originally Posted by davidsrsb (Post 3186227)
If the leads fit, the turned pin type of IC socket can be broken up and soldered into a pcb with appropriate sized holes. Twenty years ago I used to buy these pins on a metal header matching a dil IC size for in board soldering, but I haven't seen these for a long time.

Great idea, thanks.

WSJ 28th September 2013 04:58 PM

Quote:

Originally Posted by davidsrsb (Post 3186227)
Twenty years ago I used to buy these pins on a metal header matching a dil IC size for in board soldering, but I haven't seen these for a long time.

I would like to buy some of these pins, any ideas where I can find some?

http://www.diyaudio.com/forums/attac...t-mvc-009f.jpg

davidsrsb 29th September 2013 09:50 AM

Buy 14/16/20 way dil sockets and break them up.
The ones in the photo are the cheaper leaf contact, not turned pin

RJM1 29th September 2013 11:59 AM

Like these?
6100-1X7R: Socket Sipp 7 Pin Machine Tool Pins Soldertail Strip: Jameco Valuepro

davidsrsb 29th September 2013 12:06 PM

Those are good quality. Be careful that the leads you want to plug in fit, turned pin sockets have a limited diameter range and some devices, especially power, have very wide leads


All times are GMT. The time now is 07:48 AM.


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