In a message dated 11/25/98 11:59:57 AM Pacific Standard Time, [log in to unmask] writes: << Anyone know where I can find a substitute package style for a 51v Zener that comes in those glass melf-style surface mount w/ square end-cap terminations...say a hermetic, space-qualified SOD type package. On the large (E-size) square-endcap melf type packages; seems that the surface area of the terminations aren't large enough to supply adequate surface tension for secondary side reflow. Any suggestions? James Patten TRW Space and Technology >> Hey there James, If ya' can't get your mitts on that package you want, use a dot of epoxy along with your solder paste. It's gonna be a bit of a pain in the butt no matter what, but you have a couple of ways to attack this. Dispenser, or stencil. Depending on how many locations this melf goes, you may just want somebody to use a manual dispenser to squirt a dot between the pads after you print your paste. If it's more than just a few, and you don't have a dispenser, your stencil vendor can do you a "dual print" set-up using two stencils. Print your dots first, and then your paste. Your paste stencil will have the areas where the epoxy dots are, etched out from the bottom, but not all the way thru the stencil so they don't get smooshed when you print your paste. Your normal reflow profile will have the epoxy cured by the time it hits the spike zone. Use Loctite 3011...it cures in around a minute to a minute and a half. -Steve Gregory- ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################