Electronics Forum | Thu Nov 11 22:01:11 EST 2004 | Ken
Relay: Yes, you can drive a "DC" relay with AC. As long as the latching threshold is achieved, you can close the contacts. However, if the relay impedence is improperly selected, relay chatter can occur. I am confident MPM selected a correct rela
Electronics Forum | Thu Nov 19 08:20:04 EST 1998 | Earl Moon
| | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave so
Electronics Forum | Thu Nov 19 09:01:00 EST 1998 | Dave F
| | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wave
Electronics Forum | Thu Nov 19 09:32:52 EST 1998 | Earl Moon
| | | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the wav
Electronics Forum | Thu Nov 19 09:55:47 EST 1998 | Dave F
| | | | | | | For some as yet unkown reason, we have started to have some boards sag and go under the wave. The boards are surface mount top side and conventional components wave soldered. We have checked the wave hight and both the profiles on the w
Electronics Forum | Tue Aug 30 23:16:33 EDT 2005 | sumxp
Anyone come across pcb fab.house in Asia who is capable of doing 5mils track with 5% tol and 50 ohms impedence?
Electronics Forum | Wed Nov 03 21:17:40 EST 1999 | Doug B.
Yes this is absolutely true. No-clean flux residue has various affects on the functionality of circuitry especially high impedance circuits. It also affects solderability, and reliability. No-clean flux will always leave a detectable residue. Mos
Electronics Forum | Tue Feb 16 14:04:10 EST 2016 | tsvetan
We are designing board which have to plug in M.2 connector and thickness is limited to 0.8 mm The board is very complex with many BGAs and DDR3 memory chips and we will need 6 layers for routing. The problem is that we will need signals with 50, 90
Electronics Forum | Tue Feb 16 15:42:21 EST 2016 | sarason
When faced with a problem like this I sometimes look at competitive products and see what they have done. You may be able to get away with 4 layers if you have the space, however if it is jammed up that will not be an option. I presume that the total
Electronics Forum | Thu Jul 06 23:59:11 EDT 2017 | heros_electronics
We got an inquiry from US that requires high volume 8 layer 1.0mm PCB, OSP + selective ENIG surface, 5 groups impedance control, and stacked vias. These requirements are common, but there is 2/2mil lines in inner layers. It's said that this order was
