Dual general-purpose op-amp in a TO-99 can
The LM158AH is a dual general-purpose operational amplifier from Texas Instruments, housed in a TO-99-8 metal can package for through-hole mounting. It operates over the full military temperature range of -55°C to 125°C, drawing 1 mA of supply current per amplifier. The 1 MHz gain-bandwidth product and 2 mV typical input offset suit it for signal conditioning, transducer amplification, and DC-blocking stages in harsh-environment or high-reliability systems.
Military temperature range — the main event
The -55°C to 125°C operating range is the headline reason to pick this part over a commercial-grade op-amp. It keeps the bias currents and offset drift predictable in avionics, missile guidance, satellite, and downhole instrumentation where the ambient can swing from a cold soak to engine-bay heat. The TO-99 hermetic metal can seals the die against moisture and contamination — a requirement for long-life mission profiles where conformal coating alone isn't enough.
Active production — no obsolescence risk
The LM158AH is listed as Active and ROHS3 compliant. There is no last-time-buy notice or NRND flag. For BOM lines that specify this exact order code, the supply channel is stable. Availability and current pricing confirmed at quote time.
Package and mounting — retrofit fit check
The TO-99-8 metal can is a through-hole package with 8 leads. It mates with standard 8-pin round sockets or can be soldered directly into plated through-holes.