What this supervisor does and where it fits
The Maxim Integrated MAX8211MTV is a simple reset/power-on reset IC that monitors a single voltage rail and asserts an active-low reset signal when the supply drops below a programmed threshold. The adjustable/selectable voltage threshold lets you set the trip point with external resistors, so the same part covers multiple rail voltages across a BOM. Reset timeout is a minimum of 1 ms, long enough to let the system power supply settle before the processor starts. The open-drain/open-collector output pulls low on fault and can be wire-ORed with other reset outputs or pulled up to a different voltage than the monitored rail. Housed in a TO-99-8 metal can — a hermetic through-hole package — and rated for the full military temperature range of -55°C to 125°C, this part is built for environments where plastic-packaged supervisors would not survive: avionics, satellite, downhole drilling, and missile-guidance systems. The metal can also provides better thermal conduction and shielding against radiated EMI compared to epoxy-molded packages.
Threshold adjustability — one part, many rails
Because the voltage threshold is adjustable/selectable, you are not locked into a fixed trip point. A resistor divider sets the threshold to whatever undervoltage limit your processor or FPGA data sheet calls for. That flexibility simplifies inventory: one MAX8211MTV line item covers multiple designs, as long as the board can accommodate the through-hole footprint.
Package and mounting — plan for the can
The TO-99-8 metal can is a through-hole package with eight leads arranged in a circular pattern. It is not compatible with surface-mount reflow processes.
RoHS status — compliance matters
The MAX8211MTV is listed as RoHS non-compliant. That is typical for hermetic metal-can packages that use lead-bearing solder seals or tin-lead plating. If your project requires full RoHS compliance, you will need an exemption (e.g., military or aerospace) or a waiver. For legacy BOMs or high-reliability programs that already allow tin-lead, this is not a problem.
Lifecycle and sourcing reality
For procurement planning, there is no LTB risk today, but given the niche package and the industry trend toward SMD supervisors, it is worth monitoring for future PCNs.