LM158: diffrence

The LM158J is a different part number, LM158-N, which is the LM158 that was acquired from National Semiconductor.

The LM158JGB is the same as the 5962-8771001PA, which is described not by the datasheet but by the SMD. If you are not using the SMD, then you are not a customer for whom this device is intended.

Hello, 

To add on I found some older related posts as well. 

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1024422/lm158-difference-between-lm158j-883q-lm158j-883b

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/951839/lm158-device-marking-of-lm158jg-883b

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/898869/lm158-lm158j-vs-lm158jg-vs-lm158ajg-vs-lm158ajgb-883-spec

I hope this information helps. 

Best Regards, 

Chris Featherstone