NEW ARRIVAL: Siemens SIMATIC S7 Micro Memory Card 6ES7953-8LJ31-0AA0 Now Available
Model Description
We are pleased to announce the immediate availability of the Siemens SIMATIC S7 Micro Memory Card, part number 6ES7953-8LJ31-0AA0. This industrial-grade Flash-EPROM memory card provides 512 KB of non-volatile storage specifically engineered for SIMATIC S7-300, C7, and ET 200 series controllers. The card serves as an essential component for storing user programs, configuration data, and firmware, ensuring reliable program retention even during power loss. Operating at 3.3V with NAND flash technology, this compact memory solution measures just 24mm × 32mm × 1.4mm and weighs approximately 2 grams, allowing seamless integration into CPU slots without additional mounting hardware. The 6ES7953-8LJ31-0AA0 enables program portability, system backup, and rapid commissioning across manufacturing lines, process control systems, and distributed automation architectures .

Key Features
The 6ES7953-8LJ31-0AA0 delivers exceptional reliability with a minimum of 100,000 write/delete cycles and guaranteed data retention for 10 years after final programming. The Flash-EPROM technology ensures non-volatile storage without battery backup requirements, eliminating maintenance concerns associated with traditional RAM cards. The module supports hot-swapping capabilities, enabling program updates without CPU shutdown in supported configurations. Operating temperature ranges from 0°C to +60°C, with storage capabilities from -20°C to +60°C, ensuring stability in demanding industrial environments. The card is fully compatible with STEP 7 programming software and requires no additional drivers for recognition. CE marking and RoHS compliance since October 2016 validate environmental standards, while German manufacturing ensures consistent quality. The MMC format provides standardized mechanical compatibility across the S7-300 series, simplifying inventory management and field replacements .
Related Models in the SIMATIC Micro Memory Card Series
The 6ES7953-8L series offers comprehensive storage solutions spanning diverse capacity requirements. The 6ES7953-8LF31-0AA0 provides 64 KB entry-level storage for compact control applications and basic program storage . The 6ES7953-8LG31-0AA0 delivers 128 KB capacity for small-to-medium automation projects requiring modest memory footprints . For applications demanding expanded storage, the 6ES7953-8LL31-0AA0 offers 2 MB capacity suitable for complex programs with extensive data logging requirements . The 6ES7953-8LM31-0AA0 provides 4 MB for large-scale automation systems with comprehensive documentation and recipe management needs . At the high-capacity end, the 6ES7953-8LP31-0AA0 delivers 8 MB for the most demanding applications involving extensive data archiving and multi-program storage . All models share identical 3.3V Nflash technology, 24mm × 32mm × 1.4mm dimensions, and full compatibility with S7-300/C7/ET 200 systems, enabling seamless capacity upgrades without hardware modifications.
Our Competitive Advantages
As a dedicated Industrial Automation trader, we provide exceptional procurement flexibility and customer-centric service solutions. Our adaptable payment structures accommodate wire transfer arrangements and customized credit facilities for approved partners, removing financial barriers to urgent maintenance requirements. We maintain significant strategic inventory in regional distribution hubs, enabling delivery within 5-7 business days to most industrial centers worldwide. Our extensive sourcing network spans premium European and Asian sensor distribution channels, ensuring authentic Telemecanique component traceability without geographic restrictions. This multi-channel approach guarantees availability during global supply chain disruptions. Our application engineers provide sensor selection consultation, detection distance calculation, and integration support, assisting with control logic configuration and wiring optimization. Through direct manufacturer partnerships and streamlined logistics, we deliver genuine Telemecanique inductive sensors with accelerated fulfillment cycles and competitive pricing structures.
For immediate quotations or technical consultation, please contact our dedicated sales team.
About Us
We are a specialized industrial automation components trader committed to delivering authentic Siemens SIMATIC solutions with operational flexibility, rapid delivery, and technical expertise.