Steve, I've seen multiple MSL ratings when the part is classified at multiple reflow temperatures. The label on the packaging should tell you which peak temperature the MSL is associated with so you can see if it's adequate for your process. Ben -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory Sent: Tuesday, July 10, 2018 11:05 AM To: [log in to unmask] Subject: EXTERNAL: [TN] MSL Rating question on Microchip device... Hi All, I just ran across something that was brought to my attention about the MSL rating for a Microchip TQFP80 part, PN# PIC24FJ256GA108-I/PT <https://analytics.supplyframe.com/trackingservlet/track/?r=gPVv3S5fz9WS0muSSENj7rO6t8VXvQgK1rcMoyYTG0FvQlD0DIEzVjQKFnEXzjwd-qWoH4WrGz915jp9zrn-G-x_qSIVtc8zbLug-SAwCiq0p74rp1VjbJ2KwYhfTKtPqXxcTKsKZYCGGxofwy72prM2kZSCtGHPF0yQzQAytU_QVib44Cu-IBWW40DIyeoDrEQTNcmOi-iuSYSbwoo9uOWkwMsYOgLpgGtKwmlenCQ2qMUd-IluZU4hJMiMAwmQlvALZwlfnfe9p0y3-ada-0yro_rIN4ri1yG9W-ZAXgWcwuQI3v44ByozahmNdDu-pP83qBz7C1LvOj23z4u80ql5EFxO_M1uaNi8HamPkYIv5nst4jWzwTx9kLe371AdpR1Zade37d-Lbj994RtcoMlt-_tywF_Sm-fI_q-cK0pdzb47WLG3M1qI1PK3dWAQdVdSoATlHSFiOVsTCt_saqPqKUpH5GxSz0S4qHYNHBJVeAvg0srqjam2tMTKtH_4ep6RpxaZMva-9pU_Ey3iAJVT9HvW2kqUcoDZQO-bB3n0i_E50WvzT7FtGb8AY1fX6J8wP7q1t6XJ9Y4gX2enmlUGVq5roSzf_LM_4qzxpZ1mlezG7b5aZxH2oGmw_vefrS7sZbKNHTFjh_Gdgyz4FHrdsp4ysX9vdVTIZyEMa-IrUGN_7E6JEROsA7dEt5NZikg5mrq17ntQe8y7r5_MjRGjrWr9d7d57c8NJ-HE_WJMCK9KvwQMbI2rzs_fn0ogzAshEeM8su_nJNSXQoJ6-WVWH9LR26AGY4y0d3PuCaOSBGsxFFiaSHOaBnl8Zc4tVZjXxT68gr9bJ8R3-PsNm7SjxGiIymxAijZ7Qb4quJc> the part came in from Future and they put a MSL1 label on it and the package wasn't sealed. One of our more knowledgeable technicians wanted to double check the rating because he knows that QFP's are normally MSL3 or higher. The Digikey page calls this a MSL3 part, but if you go to Avnet's page it gives this a 1/3 MSL rating...what is that? I have never heard of a 1/3 MSL rating. I have also looked at the 305-page datasheet and can't find a MSL rating in the Microchip documentation. Has anybody ever seen this before? Steve -- Steve Gregory Kimco Design and Manufacturing Process Engineer (208) 322-0500 Ext. -3133 -- 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.
