https://devzone.nordicsemi.com/f/nordic-q-a/51370/nrf51822-cfac-r-mtbf-fitI am looking for any MTBF/FIT data/reports on NRF51822-CFAC-R. Any help is appreciated. Thanks in advance.en-USTelligent Community 13Mon, 26 Aug 2019 19:28:47 GMThttps://devzone.nordicsemi.com/thread/206193?ContentTypeID=1Mon, 26 Aug 2019 19:28:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b618863-0e24-40b1-a167-e55fde16b80bFran D<p>Thank you for the quick reply. This is a big help.</p> <p>Best,</p> <p>Fran</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/206042?ContentTypeID=1Mon, 26 Aug 2019 09:02:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f690fa37-468d-4d11-91ba-64a95fb00388AndreasF<p>Hi.</p> <p>FIT = 51 for nRF51822-CFAC-R:</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-60362352e75c4b929a656bf6f256b807/pastedimage1566809881384v1.png" alt=" " /></p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-60362352e75c4b929a656bf6f256b807/4394_5F00_324_2D00_1.0_2D00_20160615_2D00_170645_2D00_nRF51822_2D00_CFAC_5F00_A10_5F005F00_Product_5F00_Qu.pdf">devzone.nordicsemi.com/.../4394_5F00_324_2D00_1.0_2D00_20160615_2D00_170645_2D00_nRF51822_2D00_CFAC_5F00_A10_5F005F00_Product_5F00_Qu.pdf</a></p> <p>We don&#39;t have MTBF, but use MTTF, you can calculate that by:</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/572x518/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-60362352e75c4b929a656bf6f256b807/pastedimage1566810101757v2.png" /></p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>