What the MAX4655ETA is and where it fits
The MAX4655ETA from Maxim Integrated is a single-pole single-throw (SPST) analog switch. It's the kind of part you reach for when you need to route an analog signal on or off a board — audio paths, sensor muxing, or gain-switching around an op-amp.
Lifecycle and sourcing reality
That's the good news. The catch is the RoHS non-compliant flag: this part uses lead-bearing solder terminations, which means it won't pass a standard lead-free reflow profile without a waiver or a segregated line. If your assembly house runs only RoHS-compliant processes, you'll need to plan for a hand-solder step or a dedicated non-RoHS lane. For aerospace, defence, or high-reliability work where tin whisker risk is a concern, that non-compliant status is actually a feature — the lead content mitigates whisker growth.