Electronics Forum: electron (Page 3686 of 7890)

PCB/PCBA deflection standard

Electronics Forum | Mon Jan 31 20:07:29 EST 2022 | emeto

Thank you both, it is not the good HLA design and this is why the deflection is needed to sit everything properly in the case. We did ask cust0mer(we are CM) to change it, I am just looking for a standard to support our claim.

SMT SOT-23 Part Rotation

Electronics Forum | Mon Jan 31 21:54:40 EST 2022 | compit

I had such problems with SOT-23, how I confused N and S - inversely I entered the number of pins, etc. Check again and again :)

Heller 1500/1809 MKIII blower fan

Electronics Forum | Wed Feb 02 19:55:31 EST 2022 | dwl

you may also want to try replacing the Motor capacitor. This is often the culprit on those blower motors. I found them on Amazon for $3. much better then $450 for a new motor.

SMT SOT-23 Part Rotation

Electronics Forum | Wed Feb 02 21:32:13 EST 2022 | chuckphd53

The rotation is a fixed parameter..... and of the 9 parts, randomly it will skew the part, could be one or more... I was thinking maybe the solder paste was too dry and during the LIFT after placement it would blow the part sideways.. Yes I am on a

Crystal Clean 960S Stencil and PCB Cleaning System

Electronics Forum | Thu Feb 03 15:55:16 EST 2022 | davef

Look here: https://dynamite.com.tw/index.php?do=prod&id=34&lang=en

SMT SOT-23 Part Rotation

Electronics Forum | Thu Feb 03 20:24:02 EST 2022 | dwl

Do you see foot indentations in the paste? If the part is being blown after placement, you'll see the indentations in the paste. Another random thought; We had worn nozzles and the camera would sometimes see a spot where the paint wore off and read

SMT SOT-23 Part Rotation

Electronics Forum | Thu Feb 03 20:43:09 EST 2022 | chuckphd53

Yes, it is being pushed into the paste, did a slow place motion and you can see the nozzle press (spring) as it reaches the board height... the nozzle is black, and I tried a new nozzle also... good thoughts tho.... much apreciate the help...

SMT SOT-23 Part Rotation

Electronics Forum | Fri Feb 04 18:45:26 EST 2022 | chuckphd53

much appreciate the guidance... will be building next week and take a look again at those suggestions.... great info guys :) chuck

SiPlace S25 Machine Controller HDD rebuild - error Software booting

Electronics Forum | Sun Feb 06 22:15:26 EST 2022 | cirsol

No, we were not able to complete the process to rebuild the hdd. If any one has more information please post a solution.

Next security issue at SMTnet?

Electronics Forum | Tue Feb 08 14:26:52 EST 2022 | davef

This spammer piggy-backed on the bulk mailer that SMTnet uses to send the Newsletter last Thursday. So, when a Newsletter was sent, the mailer also sent a spam message. It was NOT the result of the Spammer having access to your email address. It wa


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