Post by thread:[EE] - Transistor array

Hello, Any of you used transistor array having about 8 or 10 transistors in the a package? I need the array with simple switching transistors like 2n2222, preferably in SMD (Yes, space is the constraint). I tried googling but couldn't fine anything above 5 transistors in a package. Thanks, Ismail

> Any of you used transistor array having about 8 or 10 > transistors in the a > package? I need the array with simple switching transistors > like 2n2222, > preferably in SMD (Yes, space is the constraint). I tried googling but > couldn't fine anything above 5 transistors in a package. Can you make do with an ULN2003A or 2803A or one of its relatives? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: http://www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: http://www.voti.nl/hvu

Hi, Thanks for the link.. (how did I miss that!) The 8 transistor package will do. I saw the ULN series but I do not need the internal biasing resistors. I just need plain transistors. May be there is one in ULN series?? I have not looked in detail. Thanks, Ismail On 4/5/06, spam_OUTpeisermaTakeThisOuTridgid.com <.....peisermaKILLspam@spam@ridgid.com> wrote: > > something like <http://www.pwrx.com/transistor.asp?catid=95>? It was one > the first page from googling on "transistor array" > > {Original Message removed}

> I saw the ULN series but I do not need the internal biasing > resistors. I > just need plain transistors. May be there is one in ULN > series?? Not that I know. But I often can use the transistors anyway, and these ULN's are dirt cheap and very common (and I have them in stock, I prefer not to use yet another component). Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: http://www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: http://www.voti.nl/hvu

Yes, ULNs are cheap and easy to work with. However, for my application it would not suit due to the internal biasing. Thanks, Ismail On 4/6/06, Wouter van Ooijen <wouterKILLspamvoti.nl> wrote: {Quote hidden}> > > I saw the ULN series but I do not need the internal biasing > > resistors. I > > just need plain transistors. May be there is one in ULN > > series?? > > Not that I know. But I often can use the transistors anyway, and these > ULN's are dirt cheap and very common (and I have them in stock, I prefer > not to use yet another component). > > Wouter van Ooijen > > -- ------------------------------------------- > Van Ooijen Technische Informatica: http://www.voti.nl > consultancy, development, PICmicro products > docent Hogeschool van Utrecht: http://www.voti.nl/hvu > > > -

ULN2001 If memory is ok no resistors just 8 transistors common emitter Steve -----Original Message----- From: .....piclist-bouncesKILLspam.....mit.edu [EraseMEpiclist-bouncesspam_OUTTakeThisOuTmit.edu] On Behalf Of Mohamed Ismail Bari Sent: 06 April 2006 18:15 To: Microcontroller discussion list - Public. Subject: Re: [EE] - Transistor array Yes, ULNs are cheap and easy to work with. However, for my application it would not suit due to the internal biasing. Thanks, Ismail On 4/6/06, Wouter van Ooijen <wouterspam_OUTvoti.nl> wrote: {Quote hidden}> > > I saw the ULN series but I do not need the internal biasing > > resistors. I > > just need plain transistors. May be there is one in ULN > > series?? > > Not that I know. But I often can use the transistors anyway, and these > ULN's are dirt cheap and very common (and I have them in stock, I prefer > not to use yet another component). > > Wouter van Ooijen > > -- ------------------------------------------- > Van Ooijen Technische Informatica: http://www.voti.nl > consultancy, development, PICmicro products > docent Hogeschool van Utrecht: http://www.voti.nl/hvu > > > -