The LM101AJ is a general-purpose operational amplifier from Texas Instruments, housed in a hermetic 8-pin ceramic DIP (8-CDIP). The part runs on a supply span of 10 V to 44 V, drawing 1.8 mA quiescent current. Input offset voltage is 700 µV, input bias current is 30 nA.
Package and environment
The 8-CDIP package (0.300" body width, 7.62 mm pitch) is a through-hole ceramic DIP. It's the same footprint as a standard 8-pin DIP socket, so it drops into existing PCB layouts without a board spin. The ceramic body is hermetic — it doesn't absorb moisture, and it handles the thermal cycling of -55°C to 125°C without cracking the die attach. That's why this part shows up in military and aerospace BOMs. For a repair bench: if the original part was a plastic DIP in a high-vibration or high-humidity environment and it failed, swapping to this ceramic version is a reliability upgrade.