Category:PCB PCB Assembly Service

Group Administrators: 1 | Group Member: 279 | Group Threads: 384

In assembly the bare board is populated with electronic components, called a "printed circuit board assembly" (PCBA). In through-hole technology, the component leads are inserted in holes surrounded by conductive pads; In surface-mount technology (SMT), the component is placed on the PCB so that the pins line up with the conductive pads or lands on the surfaces of the PCB.

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clear conformal coating

Looking for a clear conformal coating that can protect a PCB outdoors in Southern CA. Board is 24" x .25" x .03125. Require product to withstand some flexing during installation because of its very th...(view more)

Dimitri Tskhovrebadz
2017/2/28 18:48:31
4 comments
793 views

New Batch Type Vs. 2nd Hand Conveyor

Our company is in the market to replace the $50 toaster oven we use to reflow boards with something that can actually achieve even temperature and a proper reflow curve. We are a RnD type company and ...(view more)

Borut Poljsak
2017/2/28 18:25:42
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776 views

What does "performance grade 2 for components" mean?

A client document mentions the following: "PCBA to comply with IPC class-2 guidelines, and performance grade 2 for components." What does "performance grade 2 for components" mean? Would appreci...(view more)

Borut Poljsak
2017/2/28 18:17:14
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841 views

Solder Wire Expiry Dates

Hi We have recently noticed that our lead free solder wire is being supplied with expiry dates (typically 2-3 years after manufacture). I have seen "date of manufacture" information on wire befo...(view more)

Bartley
2017/2/28 18:13:20
0 comments
855 views

low cost materials to build ESD Safe Totes

I am looking for alternative, low cost materials to build ESD Safe Totes from. Standard totes really do not fit our products well. I would like to create custom, shielded totes with dissipative surfac...(view more)

Fly
2017/2/28 18:12:17
3 comments
923 views

NO POST when humidity increase to 90%

Hello, This is interesting topic that I would like to share and discuss with you.. I came across few projects from various SMT factories where its product(Computer) reach field, experience...(view more)

Alejandro Ariel
2017/2/28 18:02:05
4 comments
932 views

new water soluble mask to cover SMT parts through wave

We are looking for a new water soluble mask to cover SMT parts through wave. We currently use TechSpray wondermask w 2205. It works decent, but tends to leave a residue on boards even going at the slo...(view more)

andrea.pirovano
2017/2/28 17:58:05
4 comments
769 views

MIL-Std approved methods of striping conformal coating

Are there any MIL-Std approved methods of striping conformal coating without removing connectors?(view more)

George Blat
2017/2/28 17:50:10
0 comments
788 views

Salt spray hours

I have a customer that wants 5000 hrs to red rust. The steel is plated with chloride zinc (barrel plated) and a black chromate. They say a company in Taiwan has the technology, but can not deliver in ...(view more)

Miguel
2017/2/28 17:40:17
4 comments
847 views

SMT code info

Hello, I really need to know the part name of these two sot23 components. They have these markings on their case: 7W 32 (the 32 digits are vertically written) STPx Thanks a lot!!!(view more)

Fabio Ricci
2017/2/28 17:37:52

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