Why the 60V input ceiling matters for this BOM line
The LM317HVH/NOPB is the high-voltage variant of the classic LM317 adjustable regulator, rated for a 60V max input and delivering up to 1.5A output. That 60V ceiling is the reason this exact order code exists — the standard LM317 tops out at 40V. If your rail sits between 40V and 60V, this is the part that fits without a redesign. Output adjusts from 1.25V up to 57V via two external resistors. The 80dB to 65dB PSRR at 120Hz means it rejects mains ripple well enough to feed sensitive analog loads directly, as long as the input-to-output differential stays within the thermal budget.
Package and thermal path — TO-3 metal can
The 12 mA quiescent current is typical for a three-terminal regulator of this class — the bulk of the dissipation comes from the load current times the dropout voltage. Operating temperature is 0°C to 125°C, which covers commercial and most industrial environments. The metal can needs a heatsink bolted to the case for loads above a few hundred milliamps at high differentials — the package itself has a junction-to-case thermal resistance that assumes a metal-to-metal interface. For a kitting line, plan to hand-place or use a tube feeder.
Protection features and sourcing posture
On-chip protection includes over-current, over-temperature, and short-circuit — the regulator survives a sustained output short without external clamp diodes. The output is adjustable positive, single regulator. The base product number is LM317. Sourced per RFQ — confirm the BOM quantity and target lead time at quote.