EMRFD Message Archive 4872

Message	Date	From	Subject
4872	2010-08-09 10:03:55	richj_focus	Packing components
Hello: I am attempting to organize my electronics part and supplies from a heap to ..... something better. I am planning on storing BJT and JFET in #3 coin envelops. Any one had any static problems with these devices that would make one think the paper envelops would be a bad idea. Also how do you store truly static sensitive parts like MOSFETs? cheers, rich
4873	2010-08-09 10:18:32	w4zcb	Re: Packing components
I am attempting to organize my electronics part and supplies from a heap to ..... something better. I am planning on storing BJT and JFET in #3 coin envelops. Any one had any static problems with these devices that would make one think the paper envelops would be a bad idea. Also how do you store truly static sensitive parts like MOSFETs? cheers, rich Well, DON'T use that black semi-conductive foam. I have no idea what it's made of, but it eventually eats the gold flashing off RF transistors. W4ZCB
4874	2010-08-09 12:13:37	Dave - WB6DHW	Re: Packing components
w4zcb wrote: > I am attempting to organize my electronics part and supplies from a > heap to ..... something better. > > I am planning on storing BJT and JFET in #3 coin envelops. Any one > had any static problems with these devices that would make one think > the paper envelops would be a bad idea. > > Also how do you store truly static sensitive parts like MOSFETs? > > cheers, > rich > > Well, DON'T use that black semi-conductive foam. I have no idea what > it's made of, but it eventually eats the gold flashing off RF > transistors. > > W4ZCB > > > > > Uline.com sells the silver bags. Also, if you regularly order semiconductors, save the silver plastic they come in. I have an impulse sealer with a cutter. You could also use aluminum foil. Dave - WB6DHW <http://wb6dhw.com>
4875	2010-08-09 12:49:59	popmedkoh	Re: Packing components
That black stuff was truly nasty - and didn't stop at the gold flashing. I used some in the mid to late 70's and they completely dissolved IC pins. Turned DIPs into SMDs! As I recall the later black foam from the 80's
4876	2010-08-10 05:53:40	Bob	Re: Packing components
Hi Rich - I've used HUNDREDS of coin envelopes to store THOUSANDS of active components for DECADES and never experienced any ESD problems - this contrary to contemporary belief. In fact, I just recently purchased another box of 500 envelopes - this having used up an earlier box of 500! I don't know what number mine are, but the measure 3 /1/8" X 5 1/2" and nicely fit plastic "shoe boxes". Bob, K3NHI