Electronics Forum | Mon Jun 26 11:35:23 EDT 2000 | Christopher Lampron
Hello, We have had some problems with electrical testing of molded electrolytic and tant caps on our Mydata machines. It appears that the components will test backwards on a polarized cap test. The Mydata uses the rise time to determine polarity. Doe
Electronics Forum | Mon Oct 25 21:28:38 EDT 1999 | Dave F
3%) concentrations of gold form brittle intermetallic compounds with the tin in your solder. Electroless gold is applied with an autocatalytic process that self-limits around 5 mils thickness. You're correct electrolytic gold is used for goldfinger
Electronics Forum | Wed Jun 19 08:51:49 EDT 2002 | davef
Try this: * Remove PTH components that cannot resist baking like, plastic sockets & electrolytic capacitors. [NOTE: It may be econonomic to sacrifice some of the PTH components that cannot resist baking.] * Bake the board. * Remove, reball, and repla
Electronics Forum | Mon Oct 10 20:06:59 EDT 2005 | nuezmaster
Does anyone have any experience running Aluminum Electrolytic Caps with a SAC305 alloy. The profile for the solder calls out a peak temp of 235-255C and 60-75 seconds above 217C. Most can cap manufacturers are calling out for 230-245c max for no lo
Electronics Forum | Tue May 16 11:53:39 EDT 2006 | Ajay
Hi, I am having trouble with outgasing voids on my solder bumps.Substrate is Cu with electrolytic Au on it.Sometimes I use electrolytic Ni beneath Au.I am doing laser soldering so this process is fluxless.Its been observed that Ni is helping in redu
Electronics Forum | Wed Apr 21 17:08:32 EDT 2004 | dave
Congratulations on your new customer. This could be a keeper. Here's what you're familiar with: Electroless Nickel - per MIL-C-26074 and ASTM-B733. Electroless nickel describes the plating of nickel deposits, which may contain phosphorus and boro
Electronics Forum | Mon Aug 16 20:32:10 EDT 2004 | davef
First, we didn't say "electrolytic soft gold with a minimum thickness of 5-8 of Au". We said, "'electrolytic soft gold' thickness 5 to 8uin". FOCUS. ;-) Second, we're unaware of an industry accepted specification that you can reference. IPC-2221
Electronics Forum | Tue Nov 28 17:23:03 EST 2006 | flipit
Flash gold usually refers to electrolytic gold with a short plating time. In other words gold plating that requires current to plate. If you have bare copper under your soldermask, the gold is probably ENIG. The only other way to have bare copper
Electronics Forum | Fri Apr 04 13:03:00 EDT 2014 | jyo_409
What is the inspection procedure How to test leakage current Is 100% checking is required at IGI inspection What is the shelf life of the capacitor How much period shelf life is recommended for these capacitors How to check the ripple current of thes
Electronics Forum | Mon May 05 13:40:28 EDT 2014 | rway
The vent is there for reasons as the name implies. It's a safety feature to prevent the cap from exploding if over-tasked. Yes, without the relief on the end, the caps have a potential to become missiles when they go. I had one go off when my hand
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