We use the Siemens BB535 varactor. An alternative we have specified is the Sony 1T362 and the Rohm 1SV223 (though I think this is now also obsolete). I don't have the data book to hand for the Siemens BB535 / BB515 so I don't know the differences but if not an exact alternative, Sony may have something to suit. Hope this helps, Richard Martin, Design Engineer Tunstall Electronics, UK. > -----Original Message----- > From: Thibodeau, Chad [SMTP:[log in to unmask]] > Sent: Thursday, January 14, 1999 9:40 PM > To: [log in to unmask] > Subject: [TN] Obsolete Varactor Diodes > > I am in desperate need of some suggestions. I have three varactor > diodes > from Siemens that have gone obsolete: BB515, BB619 and BB620. The > real > problem is that these diodes are called out on a multitude of boards > of > which all have the same land-pattern (SOD-123). If anyone has some > suggestions as to alternate manufacturers I would much appreciate it. > Also, > I have already checked with M/A Com and Philips. Hope to hear back > from you > all! > > Chad Thibodeau > Component Engineer > [log in to unmask] > 2114 W. 7th Street > Tempe, AZ 85281 > P-602 333-2138 > F-602 921-9012 > http://www.efdata.com > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV > 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with > following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC's web site (http://www.ipc.org) "On-Line Services" > section for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################