Post by thread:[PIC]:4mhz Ceramic resonator with Caps

Dear All. Many Thanks for your Previous help. As explained before I am very new to this sort of thing and really appreciate all your help and patience. Does anyone know of the equivalent within the United Kingdom of the Ceramic Resonator with Caps. I have scanned Farnell and Maplins Catalogue and website and there doesn't seem to be a reference to that particular thing or at least not specifying with caps etc, However when applied to Digi-Key website instant success and a datasheet. My question is this, Does anyone have experience with this part within the UK and possibly part numbers or source. Can I use a 4mhz Crystal instead ? Many Thanks in advance once again Paul Tyrer -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spam_OUTlistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

Yes, you may use a crystal and two caps instead. Fr. Tom McGahee ----- Original Message ----- From: Paul Tyrer <.....paul.tyrerKILLspam@spam@BTINTERNET.COM> To: <PICLISTKILLspamMITVMA.MIT.EDU> Sent: Sunday, November 11, 2001 12:19 PM Subject: [PIC]:4mhz Ceramic resonator with Caps > Dear All. > > Many Thanks for your Previous help. > > As explained before I am very new to this sort of thing and really > appreciate all your help and patience. > Does anyone know of the equivalent within the United Kingdom of the Ceramic {Quote hidden}> Resonator with Caps. > > I have scanned Farnell and Maplins Catalogue and website and there doesn't > seem to be a reference to that particular thing or at least not specifying > with caps etc, > > However when applied to Digi-Key website instant success and a datasheet. > > My question is this, Does anyone have experience with this part within the > UK and possibly part numbers or source. > > > Can I use a 4mhz Crystal instead ? > Many Thanks in advance once again > > Paul Tyrer > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservspam_OUTTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

Paul Tyrer wrote: > ....I have scanned Farnell and Maplins Catalogue and website and there > doesn't seem to be a reference to that particular thing or at least > not specifying with caps etc,.... Have a look at the Farnell catalog again under resonators, the ones you want they call 3 lead ceramic resonators. The lead in the middle is the common for the two internal capacitors and it goes to ground. Part numbers 295-346 and 573-978 to be specific. You can of course use a crystal and two capacitors, but it's nice having one component instead of three. Brent Brown Electronic Design Solutions 16 English Street Hamilton, New Zealand Ph/fax: +64 7 849 0069 Mobile/text: 025 334 069 eMail: brent.brownspam_OUTclear.net.nz -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email @spam@listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

The last ones I got were from the Philips agent (equivalent to the RadioSpares part 656-186, Murata CSA 4.00, NZ$1.77) for NZ$0.55, or around UK20p. They're pretty good frequency-wise There are a couple of 4's at Farnell's UK site. 295-267 (UK70p) & 295-346 (UK44p). Enter resonator in the "search text" box and Product Desc in the "search by" box -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email KILLspamlistservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

Ooop. Teach me to do e-mails before brekky. I'd like five other cock-ups taken into consideration your honour The part I got was the ZTT4.00M, which is the 3-pin with caps, not the regular 2-pin ZTA4.00M. I've looked through past RS catalogues and they don't seem to have ever done 3-pin resonators. Same looks to be true also of Farnell. Perhaps it might be better to start at a major manufacturer like Murata and work from there. More than likely they'll have a list of distributors in the UK I did a search on Google for +ZTT +resonator and got a lot of results, bound to be a UK supplier in there somewhere -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

> Ooop. Teach me to do e-mails before brekky. I'd like five other > cock-ups taken into consideration your honour Go get your breakfast. > The part I got was the ZTT4.00M, which is the 3-pin with caps, not the > regular 2-pin ZTA4.00M. I've looked through past RS catalogues and > they don't seem to have ever done 3-pin resonators. Same looks to be > true also of Farnell. Perhaps it might be better to start at a major > manufacturer like Murata and work from there. More than likely they'll > have a list of distributors in the UK Both RS and Farnell have 3 pin resonators. RS show them as 'new' but Farnell have had them for at least a couple of years. Farnell have 3 lead parts from AVX and Murata, including Murata SMT. Farnell part # for Murata 4MHz is 295-346 and AVX is 573-978. RS part # for Murata 4MHz is 179-3725. Steve. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680, New Lynn http://www.tla.co.nz Auckland, New Zealand ph +64 9 820-2221 email: spamBeGonestevebspamBeGonetla.co.nz fax +64 9 820-1929 ====================================================== -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email TakeThisOuTlistservEraseMEspam_OUTmitvma.mit.edu with SET PICList DIGEST in the body

> Both RS and Farnell have 3 pin resonators. RS show them as 'new' > but Farnell have had them for at least a couple of years. Farnell > have 3 lead parts from AVX and Murata, including Murata SMT. > Farnell part # for Murata 4MHz is 295-346 and AVX is 573-978. > RS part # for Murata 4MHz is 179-3725. > > Steve. Murata's tech document for their resonator ranges http://www.iijnet.or.jp/murata/products/english/catalog/p16e12.pdf -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

I've generally had great luck with resonators with internal capacitors from muRata, EXCEPT when moving to surface mount parts. I just sent a couple boards in to muRata for resonator characterization. We'll see how that works out. Harold FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: dl.http://www.juno.com/get/web/. -- http://www.piclist.com hint: To leave the PICList piclist-unsubscribe-requestEraseME.....mitvma.mit.edu

> I've generally had great luck with resonators with internal > capacitors > from muRata, EXCEPT when moving to surface mount parts. I just sent a > couple boards in to muRata for resonator characterization. We'll see > how that works out. It may or may not apply to your situation but I had a lot of boards fail to start when I tried a local hand assembly contractor. His definition of cleaning the boards meant going through the motions of spraying the stuff on, etc. My definition meant that the boards would be clean and not sticky. He thought I was being way to fussy, but when I washed the boards in question, they sprang into life. The upshot is that if you use a no-clean flux, you have two choices. Either don't clean at all or if you do, make sure that it is cleaned very well. Steve. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680, New Lynn http://www.tla.co.nz Auckland, New Zealand ph +64 9 820-2221 email: EraseMEstevebtla.co.nz fax +64 9 820-1929 ====================================================== -- http://www.piclist.com hint: To leave the PICList RemoveMEpiclist-unsubscribe-requestEraseMEEraseMEmitvma.mit.edu