What the part is in the panel
The Mitsubishi NZ2EX2B1-16TE is a programmable controller remote I/O module that adds 16 points of I/O to a distributed MELSEC automation island, classified as a PLC expansion module under PLCs & HMIs. As a remote station it sits out on the fieldbus from the CPU, so the 16-point block is sized for distributed termination rather than backplane-density use. Lifecycle stage is recorded as current, so the part is sourced against normal BOM flow rather than a last-time-buy window.
Interchange against the FX2N remote block
The closest catalog peer is the FX2N-8EX-ES/UL: it is also filed as a PLC expansion module, but it is an 8-point block for the FX2N platform, whereas the NZ2EX2B1-16TE is a 16-point remote station for the MELSEC NZ2 remote-I/O family. The platforms and the point counts do not line up, so it does not drop into a panel specified around the FX2N-8EX-ES/UL without rewiring and re-addressing the remote island — it is a same-class neighbour, not a pin-for-pin substitute.
Sourcing posture
Lifecycle stage is recorded as current on this MPN, so the supply channel is the standard quoted-to-order path against an RFQ — no last-time-buy countdown, no broker-only constraint, and no official successor listed. The remote-I/O island design is the procurement unit, so the BOM line should lock the NZ2EX2B1-16TE order code together with the head module and the fieldbus cable it pairs with, rather than treating this block as an interchangeable spare.