[sdiy] MIDI optocoupler query

Julian Schmidt elfenjunge at gmx.net
Sat Jan 6 18:12:56 CET 2018


I used the hcpl0600 for MIDI without problems.
comes in SO-8

Am 05.01.2018 um 21:14 schrieb Tom Wiltshire:
> Hi Tim,
>
> The 6N138 offers 5kV isolation, 300% CNR and 20mA current. Putting those parameters in as minimums (combined with SMD packages) gives this list:
>
> http://uk.farnell.com/webapp/wcs/stores/servlet/Search?catalogId=15001&langId=44&storeId=10151&categoryId=700000021001&pf=113080807,111978345,111978347,111978348,111978349
>
> The HCPL 0700 or 0701 look likely candidates. Indeed, these share a data sheet with the classic 6N138/139 MIDI opts:
>
> http://www.farnell.com/datasheets/1266261.pdf
>
> HTH,
> Tom
>
> ==================
>         Electric Druid
> Synth & Stompbox DIY
> ==================
>
>> On 5 Jan 2018, at 19:59, Tim Ressel <timr at circuitabbey.com> wrote:
>>
>> Yeah, that "SMT" package is just a DIP with the legs modded for reflowing. I was hoping for a part that is smaller than a dip.
>> --tr
>>
>> On 1/5/2018 11:53 AM, Pete Hartman wrote:
>>> Olivier of Mutable Instruments says he has better success with a 6N137 than a 6N138.
>>>
>>> Turns out the '137 has an SMT version
>>>
>>> https://www.mouser.com/productdetail/lite-on/6n137s?qs=sGAEpiMZZMtd3yBnp8bAgJVeHfvx%252b1RWwJnXPJ0hWKA%3D
>>>
>>> And that was just one of several options.
>>>
>>> Pete
>>>
>>>
>>>
>>> On Fri, Jan 5, 2018 at 1:37 PM, Tim Ressel <timr at circuitabbey.com> wrote:
>>> Thanks but this is a production design and can't use obsolete parts.
>>>
>>> --tr
>>>
>>>
>>>
>>> On 1/5/2018 11:35 AM, Jean-Pierre Desrochers wrote:
>>> Best is Sharp PC900 SMT:
>>> Obsolete but still available through eBay
>>> https://www.ebay.com/itm/20-PIECE-LOT-PC900V0YSZX-SHARP-OPTOISO-5KV-OPEN-COL
>>> LECTOR-6DIP-/302575333531?roken=cUgayN&soutkn=9QY7wa
>>>
>>> JP
>>>
>>> -----Message d'origine-----
>>> De : Synth-diy [mailto:synth-diy-bounces at synth-diy.org] De la part de Tim
>>> Ressel
>>> Envoyé : 5 janvier 2018 13:55
>>> À : SYNTH DIY
>>> Objet : [sdiy] MIDI optocoupler query
>>>
>>> Hi,
>>>
>>> Is there a small SMT opto that is known to work as a MIDI receiver? The
>>> 6N138 is on the portly side and I am out of room on my board.
>>>
>>> Thanks!
>>>
>>>
>>> -- 
>>> --Tim Ressel
>>> Circuit Abbey
>>> timr at circuitabbey.com
>>>
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>> -- 
>> --Tim Ressel
>> Circuit Abbey
>>
>> timr at circuitabbey.com
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