https://devzone.nordicsemi.com/f/nordic-q-a/65947/substitutionGood afternoon, dear Sir of Madam. Our product used the NRF21540-QDAA-R7 which has gone obsolete. What is the best substitute part? Unfortunatelly i couldn&#39;t find substitution. Look forwand to your answer. Thank you!en-USTelligent Community 13Wed, 16 Sep 2020 11:09:33 GMThttps://devzone.nordicsemi.com/thread/269837?ContentTypeID=1Wed, 16 Sep 2020 11:09:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62428cb8-e04e-4403-b4a6-f3e98d59b473Kenneth<p>Hi,</p> <p>Are you sure you have the right partnumber? The nRF21540 is still under development and not in volume production:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/struct_fem/struct/nrf21540.html">https://infocenter.nordicsemi.com/topic/struct_fem/struct/nrf21540.html</a>&nbsp;</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>