No problem, Jon. We all think more clearly after a couple of beers! -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Roberts, Jon (SA-1) Sent: Tuesday, September 22, 2009 7:55 AM To: [log in to unmask] Subject: Re: [TN] CRITERIA FOR USE OF SOLDER SLEEVES Please ignore my question regarding solder sleeve criteria. I was not thinking clearly late yesterday. Going home I realized the overlap is also based on the solder sleeve used (space between the sealing compound). The criteria in IPC/WHMA-A-620 does not address using solder sleeves with joining a component lead and a stranded wire. If I use 8.1.5, it only states 3 conductor diameters but does not address if it is the large conductor or smaller conductor. I am going back to rethink what I need to do. One is to take the diameter of the 22AWG stranded wire, the diameter of the component lead and the solder sleeve's opening between the sealing compound to see which diameter (wire or lead) can meet the 8.1.5 Acceptable. Sincerely, Jon (Alias dazed) -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Roberts, Jon (SA-1) Sent: Monday, September 21, 2009 4:37 PM To: [log in to unmask] Subject: [TN] CRITERIA FOR USE OF SOLDER SLEEVES I am trying to determine when using a solder sleeve (heat shrinkable device) to solder a component lead (solid approximately 0.040" to 0.050 in diameter) to a 22AWG stranded wire the overlap requirement. It is a T03 transistor. IPC/WHMA-A-620A Section 8.1.4 states on 8-8 for a defect less than 3 wire diameters of the largest wire. Section 15 covers criteria solder sleeves on shield wire. So since it is not shown or words about using solder sleeves as a method of terminations, would you recommend using the requirement in Section 8.1.4 or use the smallest diameter (22 AWG)? We also do use solder sleeves on resistors which are smaller (0.028") to solder 22 AWG stranded wires. Thanks, Jon This communication is intended only for use by the addressee(s) named herein and may contain business confidential and/or legally privileged information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, disclosure or copying of this e-mail and its contents is strictly prohibited. If you have received this e-mail in error, kindly notify the sender by replying to this message. In addition, please permanently delete the message and any attachments without copying or disclosing the contents. Thank you for your cooperation. 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