EOL/hot stock on a 1FK7 compact servo
The 1FK7042-2AF71-1AH0 is a Siemens 1FK7 compact synchronous servo motor — the compact-frame drive in the 1FK7 family used where short stack length and high dynamic response matter more than the larger 1FK7 high-inertia frames.
4.99 kg frame, panel-mount footprint
As a compact synchronous servo, the 1FK7 pairs with a Siemens SINAMICS drive on the same multi-turn encoder protocol; confirm the encoder code suffix (-1AH0) matches the controller-side parameter set before commissioning the swap.
Sourcing posture for a discontinued servo
EOL/hot lifecycle means a last-time-buy window has already closed at the factory — the realistic path is independent distribution carrying new-surplus and de-installed stock, with lot quantity and condition confirmed per RFQ rather than at a quoted blanket price. No official successor or cross-reference is recorded for this order code on the ledger, so a pin-compatible alternative in the 1FK7 family would need to be validated against the encoder suffix and shaft detail against the live datasheet before being treated as a drop-in.