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 22nd May 2012, 05:01 PM   #1
bil4702 is offline bil4702  Ireland
diyAudio Member
 
Join Date: Mar 2012
Default optical coupler equivalents help?

Hello, I have an optical coupler from a cheapamp (PowerMaxx MS6500). The body is marked LCR0202 200206 and it measures approx 12mm x 7mm with 4 pins for pcb mounting. I havent come across a faulty one of these before. I can get the datasheet online but I cant source the part and was wondering is there a generic coupler that could be used in its place? Any help or advice very much appreciated.
  Reply With Quote
Old 22nd May 2012, 05:48 PM   #2
diyAudio Member
 
indianajo's Avatar
 
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
I've got a switcher supply with blown up Toshiba 4 pin opto couplers, and the only measurement on the datasheet is the isolation voltage, input to output. You would think Vcc max or transfer efficiency or something would be important, but apparently "they are all the same". With that "quality" brand as an example, I would just buy some 4 pin opto coupler with the same package and try it. Sounds vaguely like the 4 pin dip package, but the proof is if the pins are on 0.1" spacing next to each other and 0.3" across from each other. 0.1" = 2.54 mm.
__________________
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
  Reply With Quote
Old 23rd May 2012, 05:44 AM   #3
RJM1 is offline RJM1  United States
diyAudio Member
 
Join Date: Jan 2010
Location: Titusville, Fl.
Actually it’s a linear opto coupler with a CDS cell inside so the opto couplers from a switch mode power supply would not work as they usually have a photo transistor on the output side.

Data sheet.

http://www.google.com/url?sa=t&rct=j...U30cfA&cad=rja

Product description.
http://www.chinaledproduct.com/5-6-1...-coupling.html

Last edited by RJM1; 23rd May 2012 at 05:54 AM.
  Reply With Quote
Old 23rd May 2012, 06:11 AM   #4
RJM1 is offline RJM1  United States
diyAudio Member
 
Join Date: Jan 2010
Location: Titusville, Fl.
You might have a look in this thread, it's a bit long for me but they are using a similar device for a volume control.
Lightspeed Attenuator a new passive preamp

Here are some from that thread.
LDRs Light Dependent Resistors Silonex NSL-32SR2
  Reply With Quote
Old 23rd May 2012, 07:46 AM   #5
diyAudio Member
 
dchisholm's Avatar
 
Join Date: Mar 2011
Location: St Louis, Mo
The Silonex NSL-32Sxxx series might be candidates for functional equivalents, though the packaging is much different. See < http://www.silonex.com/audiohm/index.html >.

Dale
  Reply With Quote
Old 23rd May 2012, 01:13 PM   #6
diyAudio Member
 
indianajo's Avatar
 
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
Cool. I have an organ with incandescent lamp-CDS cell optocouplers and wondered why there was no LED equivalent. 1966 technology is back again.
__________________
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
  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
line to optical ---> optical to analog dirtbiker1824 Digital Line Level 5 27th February 2011 03:29 AM
which 5" for use in a K-coupler? freddi Full Range 5 15th October 2010 07:37 PM
unknown opti-coupler Help amc32 Car Audio 1 7th April 2010 04:18 PM
Drum dynamics and Karlson-coupler freddi Multi-Way 2 21st February 2007 01:48 AM
How to design an air coupler? Fast1one Subwoofers 3 13th February 2007 04:11 PM


New To Site? Need Help?

All times are GMT. The time now is 08:18 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