Lifecycle reads EOL hot — procurement reality
The 1FK7042-2AF71-1CH0-Z Z=M39 carries a of eol_hot, which means the part sits in the late-support window where independent channel stock is the realistic supply path rather than the factory-direct line.
Sourcing posture for an EOL Siemens servo
On an eol_hot SIMOTICS servo, the practical supply lane is independent distribution: quoted to order against the BOM with lot traceability, manufacturer documentation, and ship-from inventory confirmed at RFQ — no factory-direct promise, no stock-count claim, no immediacy language.
Integration check before the RFQ goes out
Before quoting, confirm the Z=M39 option suffix on the existing unit against the replacement order code — the option codes on a SIMOTICS S motor carry the encoder type, brake fitment, and shaft detail, and an EOL replacement has to match the suffix exactly to drop onto the existing SINAMICS drive configuration without a re-commission.