Electronics Forum: diodes (Page 1 of 23)

MPP4202 diodes from Microsemi

Electronics Forum | Mon Dec 12 12:25:11 EST 2005 | John

I'm having problems feeding these to the pick and place. As the tape peels off the pocket the part sticks to the tape rather than remaining in the pocket. Machine is QUAD QSV. We've tried all generations of feeders we have available. Any advice is

MPP4202 diodes from Microsemi

Electronics Forum | Mon Dec 12 13:11:16 EST 2005 | bobpan

Sounds like too much adhesive on the tape or static electricity. Try grounding the feeder if you think its not adhesive/tape related.

Identifying SMT sot23 diodes ?

Electronics Forum | Mon Feb 06 10:37:17 EST 2006 | cyber_wolf

Is it possible to identify the part# of an SMT diode by the markings on the top of the part. The part(s) are in an SOT23 package. I have 2 parts. The markings are: KZ2 P3 and KJE ON Thanks

Identifying SMT sot23 diodes ?

Electronics Forum | Mon Feb 06 10:41:35 EST 2006 | russ

It is possible. It is of great help to know the Mfgr. however. Within the Mfgr specs they will give you the part marking.

Identifying SMT sot23 diodes ?

Electronics Forum | Mon Feb 06 11:41:11 EST 2006 | slthomas

Pretty much what Russ said, with the addition that going to a major distributor's site (mouser, digikey) and searching for those marking codes might get you where you want to go quickly.

Identifying SMT sot23 diodes ?

Electronics Forum | Tue Feb 07 04:00:49 EST 2006 | dougs

have a look here http://www.tkb-4u.com/code/smdcode/indexsmdcode.php

Cylindrical diodes Missing during SMT process.

Electronics Forum | Tue Aug 24 02:33:00 EDT 1999 | Gyver

Hello everyone, We found many cylindrical diodes missing during SMT process. Could someone tell us how to prevent this problem? Is it effective to change the shape of stencil apture or reduce fan speed in reflow oven? Thanks in advance. Gyver

Re: Cylindrical diodes Missing during SMT process.

Electronics Forum | Tue Aug 24 04:05:15 EDT 1999 | Scott Davies

Hello everyone, We found many cylindrical diodes missing during SMT process. Could someone tell us how to prevent this problem? Is it effective to change the shape of stencil apture or reduce fan speed in reflow oven? Thanks in advance. Gyve

Re: Cylindrical diodes Missing during SMT process.

Electronics Forum | Tue Aug 24 05:11:32 EDT 1999 | George Verboven

Hello everyone, We found many cylindrical diodes missing during SMT process. Could someone tell us how to prevent this problem? Is it effective to change the shape of stencil apture or reduce fan speed in reflow oven? Thanks in advance.

Re: Cylindrical diodes Missing during SMT process.

Electronics Forum | Tue Aug 24 06:40:18 EDT 1999 | Gyver

Hello everyone, We found many cylindrical diodes missing during SMT process. Could someone tell us how to prevent this problem? Is it effective to change the shape of stencil apture or reduce fan speed in reflow oven? Thanks in advance.

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