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How to solder the OPT101P-J in the J-formed DIP /SOP (DTL)/ case since these legs are curved up?

Alex Baikov
Prodigy 210 points
Other Parts Discussed in Thread: OPT101

How to solder the OPT101P-J in the J-formed DIP /SOP (DTL)/ case since these legs are curved up? It is impossible to solder through the hole but in the case of surface mounting the curved up legs looks like antenna for noise pickup. I'm confused.

  • 0
    TI__Expert 6930 points

    Hi Alex,

    Should you be interested, a through hole version of the OPT101 is available...the orderable part number is OPT101PG4.  For the OPT101P-J, the reverse J formed leads provide a surface mount option.  The leads are the exact length as the PDIP and are just mechanically formed to allow for surface mount soldering and do not increase an anntenna effect.  With the clear plastic package care must be taken when soldering either version to ensure the devices are dry prior to soldering...it is therefore recommeded to bake the devices prior to soldering...shown here is the guidance from the product specification.  Should yo have any further questions please feel free to contact me through email directly at:

     mullins_ed@ti.com

     Best regards,

    Ed Mullins

    Senior Applications Engineer