What the EOL-hot tag means on this 1FK7
The reads eol_hot on 1FK7033-7AK71-1TG0 — Siemens has wound down regular production on this 1FK7 high-dynamic frame, but remaining inventory is still being shipped through the factory's tail-end channel. For a buyer, that translates to a quoted-to-order posture: the order code is honored as long as stock holds, not a promise of future production runs. No official successor or pin-compatible alternative appears in the record for this exact 1FK7 order code. A board-level replacement usually means stepping up to a current 1FK7 successor frame or moving to the 1FT7 line — both are different shaft and encoder conventions, so a swap is a mechanical and commissioning decision, not a same-footprint drop-in.
2.72 kg frame and what that implies on the line
On a Siemens SINAMICS S120 or S210 drive, the motor's resolver or absolute encoder feedback plus the 1FK7 winding code is what sizes the drive's current loop — pairing is done by Siemens configurator (SIZER) before commissioning, and the resolver cable runs back to the drive's SMC/SME module rather than a third-party amplifier.
Sourcing posture through independent channels
If a maintenance spare for a running line is the trigger, the right RFQ to send carries the order code, the motor's encoder variant, and the drive-side module it's wired to — that lets the supplier confirm the resolver pinout and the winding code match before the unit ships.