Hi All, Just ran into an issue with an ESD Diode from Texas Instruments. PN# is TPD1E10B06DPYR. It is a tiny X1SON part that exhibits some pretty bad cracking after reflow: https://photos.google.com/share/AF1QipPp6LspjK3p06cirTy8Z7pW6kUxN9-EdxKnrj7muxemJuPaTfoZJXq6QqWx9_eUXQ?key=aFV3OVh0WW5UbkNlSG0zTVM1ZjU3VjdIU2pYMDZB The part is being placed with a MyData (MyCronic) MY19. There is no visible cracking after pick and place and prior to reflow. The part package data in the machine was verified against the datasheet dimensions and is correct. The part is MSL-1. We have another X1SON part of another part number that is not cracking. The label for these parts says the date code 2018, which to me is very old. The reflow profile was verified with a KICSTART-2 profiler and verified to be well within FCT's AmpOne SAC305 parameters. Roughly 2° per second ramp rate, in a RTS profile to a 239° max peak temp, for a reflow time above 220° at 48 seconds. Pretty unremarkable profile. Around 4-minutes long You can only see these cracks AFTER reflow, they are not visible before reflow. Have any of you ever seen anything like this? TIA! -- Steve Gregory Kimco Design and Manufacturing Process Engineer (208) 322-0500 Ext. -3133 Cell Phone: (918) 706-2779 -- This email and any attachments are only for use by the intended recipient(s) and may contain legally privileged, confidential, proprietary or otherwise private information. Any unauthorized use, reproduction, dissemination, distribution or other disclosure of the contents of this e-mail or its attachments is strictly prohibited. If you have received this email in error, please notify the sender immediately and delete the original.