Siemens 6ES7954-8LE03-0AA0 SIMATIC S7 Memory Card

Siemens 6ES7954-8LE03-0AA0 SIMATIC S7 Memory Card is a 12 MB, 3.3 V flash memory device designed to slot into Siemens S7-1x00 CPU and SINAMICS configurations. The card’s form factor measures 24 mm in width, 32 mm in height, and 2.1 mm in depth, weighing about 3 g, delivering a compact, field‑replaceable module suitable for panel or cabinet installations. Labeled as a spare part in Siemens Industry Mall catalogs, this model sits within the SIMATIC S7 memory card family and is documented as having a successor, the 6ES7954-8LE04-0AA0, available from Siemens. It provides 12 MByte of non‑volatile flash memory operated at 3.3 volts, enabling reliable data retention in industrial environments and compatibility with S7‑1x00 CPU/SINAMICS configurations; buyers should verify the exact CPU/SINAMICS combination and the latest revision before purchasing. This memory card is typically listed by Siemens and distributors under spare parts catalog entries, reflecting Siemens’ ongoing product line updates and the shift to newer revisions while maintaining backward compatibility with existing S7‑1x00 deployments.