EMRFD Message Archive 12344

Message Date From Subject
12344 2016-02-11 19:17:53 n1vc 2N5179 Top view or bottom view
Still working on SA. 2nd mixer, Q201 2N5179. Data sheet shows pin out, but does not specify top view or bottom view. I even referenced the classic book RF Circuit Design by Chris Bowick, 1993, ISBN 0-672-21868-2, but it still does not make the definition clear in my mind.
Please advise,

Thank you
Vincent Coppola

12345 2016-02-11 19:23:01 Dana Myers Re: 2N5179 Top view or bottom view
12346 2016-02-11 19:42:48 john lawson Re: 2N5179 Top view or bottom view
Hi Vince, if your referencing Wes' SA, double check the Schematic,  I believe your needing the pin out for a 2N5109, not 2N5179. Just Google 2N5109 datasheet and you'll  end up with some links you can click on and get the needed information....best of luck, John

12347 2016-02-11 20:07:18 kerrypwr Re: 2N5179 Top view or bottom view




Both are bottom-view; bottom-view seems fairly standard in my experience, although some data sheets give a three-dimensional view.

Kerry VK2TIL.



12349 2016-02-11 22:18:40 iam74@rocketmail.... Re: 2N5179 Top view or bottom view
In the standard TO-39 case, the emitter is always next to the tab. If you have a 2N5179 and the case is grounded, That is obvious and the emitter is next to the ground pin.  The 2N5109 is the same without the ground pin.

The EIA standard is "2Nxxxx" and emitter-base-collector (EBC). But it is always helpful to check that in a transistor checker, available