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Projects => General Questions => Topic started by: PhiloB on April 14, 2014, 11:17:09 PM

Title: JRC 4580D Sources
Post by: PhiloB on April 14, 2014, 11:17:09 PM
I'm trying to find JRC4580D ICs in the US.  I found NMN4580D at mouser.  I'm building a MB Upperdecker.  Would this be a sufficient alternate?
Title: Re: JRC 4580D Sources
Post by: Clayford on April 14, 2014, 11:23:18 PM
Quote from: PhiloB on April 14, 2014, 11:17:09 PM
I'm trying to find JRC4580D ICs in the US.  I found NMN4580D at mouser.  I'm building a MB Upperdecker.  Would this be a sufficient alternate?

Yes

JRC = Japan Radio Corporation
NJM = produced by New Japan Radio Company
JRC = NJR

There are those that swear there's a difference  in the JRC vs NJM chips. They have the same specs.
Title: Re: JRC 4580D Sources
Post by: Clayford on April 14, 2014, 11:30:22 PM
My mouser shipment notification tells me I bought 10
MFG Part No:NJM4580DD
NJM4580DD
NJR Operational Amplifiers - Op Amps
US HTS:8542330000 ECCN:EAR99 COO:JP

They should arrive on Wed or Thur. If you want I wouldn't be opposed to popping two in pink foam, a ziploc and into a padded mailer your way. I went with the DD part because DD's are better that D's right?*

* It's really temperature variance, so yes they were better
Title: Re: JRC 4580D Sources
Post by: Clayford on April 14, 2014, 11:52:44 PM
I actually have some spare tube, pink foam, ESD bags etc to mail it out proper thanks to my last order with Avnet.
Title: Re: JRC 4580D Sources
Post by: PhiloB on April 15, 2014, 12:02:48 AM
Clayford, that's very generous.  I'm not really in a hurry though.  That's good info.  I'm hoping to get a handle on this part nomenclature.  I've been building almost a year now and have learned quite a bit but have so much more to learn.  I greatly appreciate you taking the time to explain this so well:)
Title: Re: JRC 4580D Sources
Post by: electrosonic on April 15, 2014, 12:16:37 AM
Not in the US, but Tayda sells the SIP version for $0.25

Andrew.
Title: Re: JRC 4580D Sources
Post by: Clayford on April 15, 2014, 01:40:43 AM
Tayda sells SIP 4558's but not 4580's the 4558 is an upgrade of sorts for the 4580, but will give a different sound. Tayda to my knowlege doesn't carry 4580's and they carryu 4558's in both p-dip and sil chips.
Title: Re: JRC 4580D Sources
Post by: culturejam on April 15, 2014, 03:06:36 AM
Use this to find who sells what chip:

http://www.findchips.com/

It's my go-to.  :D
Title: Re: JRC 4580D Sources
Post by: PhiloB on April 15, 2014, 03:29:01 AM
Very cool CJ!
Title: Re: JRC 4580D Sources
Post by: gjcamann on April 15, 2014, 12:06:35 PM
Quote from: culturejam on April 15, 2014, 03:06:36 AM
Use this to find who sells what chip:

http://www.findchips.com/

It's my go-to.  :D

I use that place alot too.
Title: Re: JRC 4580D Sources
Post by: atreidesheir on April 17, 2014, 09:32:06 PM
Quote from: culturejam on April 15, 2014, 03:06:36 AM
Use this to find who sells what chip:

http://www.findchips.com/

It's my go-to.  :D
good info.  Did not know about this.
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