Hi there Bob, The SOD6 is an oddball to me too, I've only ever seen it on this device. Its a SMT Small Outline Diode package, although I can find no reference to it outside of the manufacturers data sheet for the SM4T36CA. Cheers - Matt.... >-----Original Message----- >From: Bob Landman [SMTP:[log in to unmask]] >Sent: Tuesday, December 14, 1999 7:23 PM >To: Matthew Lamkin; DesignerCouncil E-Mail Forum. >Subject: Re: [DC] Search for obsolete components SM4T36CA Transils ? > >My sympathies, it's a terrible situation we also sometimes find >ourselves in. We are in it now with RS-232 interface ICs that were a >standard for over 15 years. No pin for pin replacements so many >boards will have to be redesigned when we run out of stock. It's >worse for us as we need Industrial rated parts (-40 to +85C) and more >and more vendors are discontinuing them and not even making available >the MIL version (the end of the Cold War has had a lot of fallout!). > >We sometimes use a distributor here in the USA called America II - >they charge what amounts to highway robbery but sometimes they can get >the parts. www.americaII.com > >I am not familar with the SOD6 footprint - what is it? We use >transorb zeners and use leaded types only. The take more room BUT as >they take the brunt of external stress do on occasion blow and need to >be replaced and we found this to be a faster way to repair units (and >by being up in the air a bit to disappate energy better. > >Regards, > >Bob Landman >H&L Instruments L.L.C. >Electro-Optics for Industry & Science >34 Post Road, PO Box 580 >North Hampton, NH 03862 >tel(603)964-1818 fax(603)964-8881 >http://www.hlinstruments.com > >----- Original Message ----- >From: Matthew Lamkin <[log in to unmask]> >To: <[log in to unmask]> >Sent: December 14, 1999 9:36 AM >Subject: [DC] Search for obsolete components SM4T36CA Transils ? > > >: HI there everyone, I've been pulling my hair out for the last few >days, >: as >: we have several products designed to use a ST/SGS-Thompson part that >: appears to have >: gone obsolete since we last purchased any. >: >: Only we didn't know & are now searching for any of these that are >going >: spare anywhere in the world. >: >: The part is a "Transil" Bi-directional surge protector type >SM4T36CA. >: Any equivalent parts that have been suggested have a different >footprint >: (this part uses SOD6.). >: >: We have searched the www & exhausted all our suppliers, so now I'm >: reduced to begging on the streets (well TechNet at least!). >: >: Can anyone point me in the right direction? >: >: Tia >: Matthew Lamkin >: Printed Circuitboard Draughtsman >: Protec Fire Detection PLC. >: Protec Hse, Churchill way, >: Nelson, Lancashire. >: England UK. >: Tel 01282 717171 >: Fax 01282 717273 >: Email [log in to unmask] >: >