Electronics Forum | Fri Nov 11 09:38:41 EST 2005 | Rob
Hi, There are 2 main steps to reducing EMI from a product. The first is to minimise it at source with smart design (keeping signal traces short, lots of decoupling etc). There should be design guides available from internet seach engines. Many ma
Electronics Forum | Thu May 10 15:32:45 EDT 2012 | 14367
We are having a lot of tomb stoning with this no clean solder paste. It's limited to larger, complex boards, affecting 0603 ferrite beads, capacitors and SOT23s. It was suggested that paste removed from a stencil should not be put back in it's origin
Electronics Forum | Mon Mar 03 07:15:24 EST 2014 | JB
Thanks for the reply, how do people handle different packages then if you can't add new ones? If we had a 1206 sized inductor, then a 1206 sized ferrite bead and so on, they would all have to be grouped under the same generic heading? e.g. Chip-R321
Electronics Forum | Fri Aug 28 23:32:39 EDT 1998 | Pete Sorenson
| Does anyone have any experience they are willing to share on Ag epoxy used as a copper through hole plating replacement? Was CEM3 used? | What are the limitations? | Thanks, | Steve I have used silver epoxy extensively for conductive bonding applic
Electronics Forum | Thu Jun 29 02:16:07 EDT 2006 | AR
We are experiencing some difficulties with reflow soldering a 1210-sized MOV with silver/palladium finish. The PCB finish is SAC. When inspecting the board after reflow it seems that nearly all solder is gone both from the pads and the component term
Electronics Forum | Thu Oct 05 15:58:16 EDT 2006 | RusH
Mario, Thanks for your response. We are building a leaded assembly with hot air leveled Sn/Pb pads on the PCB. In one case the component is a 7.5X5.2X1.8 wire wound ferrite inductor with Au/Sn leads. The second component is an 0808 Tantalum cap,
Electronics Forum | Mon Feb 22 10:01:01 EST 2010 | jtsyeung
Since the inductor is electro-magnetic, that means the device is composite of coil and ferrite metal. The inductor inside the reflow oven meets with blower motors which close to the inductor and generate magnetic field. With such conditions, Lawren
Electronics Forum | Thu Jun 09 18:59:49 EDT 2016 | spoiltforchoice
You'd have more luck looking at where it is located in the circuit than posting a picture a of brown brick with contacts either end. Its fairly chunky so sure it could be a ferrite of some kind (but they are normally black) or indeed a Fuse, self re
Electronics Forum | Mon Nov 22 08:30:53 EST 2021 | zxcvb
Hello there! In one SMPS, I noticed a blown resistor with the following color code: yellow (4) Violet(7) Gold(?) Gold Black. I'm not sure what the value is. The dimensions of the resistor are those of a conventional MF0207 metal film resistor. I assu
Electronics Forum | Thu May 05 03:22:38 EDT 2005 | Hannu
I do not mean big, heavy transformers but rather small ferrite core transformers, with ferrites in the range of EF16 .. EF40. The weight of the lead and its percentage of the total weight is not the issue here. We simply do not want lead-containing t
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