Home > Products > SIEMENS > SIMATIC S7 Series
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Complete model
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6ES7954-8LE03-0AA0
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Product family
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SIMATIC S7 memory cards
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Product type
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12 MB memory card for S7-1x00 CPU and SINAMICS
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Dimensions
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24 x 32 x 2.1 mm (W x H x D)
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Weight
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Approximately 3 g
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Memory technology
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Flash-EPROM
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Memory capacity
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12 MB
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Operating voltage
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3.3 V
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Write/delete endurance
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Minimum 500,000 operations
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Data retention
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Minimum 10 years below 50,000 write/delete cycles
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High-cycle retention
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Minimum 1 year above 450,000 write/delete cycles
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Applications
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SIMATIC S7-1x00 CPUs and SINAMICS
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Classification
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ETIM EC000192; UNSPSC 43-20-14-02
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Approvals
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Manufacturer declarations; NK and CCS maritime approvals
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CONTACT
STELLA
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Removable storage
The memory card provides 12 MB of Flash-EPROM storage.
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High endurance
Minimum specified write/delete endurance is 500,000 operations.
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Compact format
The card measures 24 x 32 x 2.1 mm and weighs about 3 g.
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Industrial use
The official product description covers SIMATIC S7-1x00 CPUs and SINAMICS.
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Memory interface
The card uses 3.3 V Flash-EPROM technology.
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Capacity
Usable memory capacity is identified as 12 MB.
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Controller compatibility
The official application scope is S7-1x00 CPU systems.
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Drive compatibility
The official application scope also includes SINAMICS.
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Model verification
Confirm the full 6ES7954-8LE03-0AA0 marking before inserting or replacing the card.
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Capacity check
Verify that the engineering project requires the 12 MB variant.
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Physical fit
The official card envelope is 24 x 32 x 2.1 mm.
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Lifecycle control
The exact suffix is important because Siemens lists a later successor for this spare part.
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Data retention
Retention is at least 10 years when write/delete cycles remain below 50,000.
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High-cycle use
Retention is at least 1 year when write/delete cycles exceed 450,000.
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Declarations
The Siemens data sheet lists general manufacturer declarations.
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Maritime approval
The data sheet lists NK and CCS maritime approvals.
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Q1. How can I verify the quoted item is exactly 6ES7954-8LE03-0AA0?
Match the complete Siemens article number on the quotation, card label, and package. Confirm a 12 MB, 3.3 V Flash-EPROM memory card for S7-1x00 CPUs and SINAMICS.
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Q2. How can I distinguish New, Used, or Refurbished condition?
Request clear current photos of both card faces, label, edge contacts, plastic shell, seals, and packaging. Ask the seller to state whether the card has been inserted, programmed, erased, or previously commissioned.
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Q3. How can I check whether a supplier is legitimate and reliable?
Verify company registration, address, matching bank beneficiary, business contacts, and a formal quotation that lists 6ES7954-8LE03-0AA0 in full with condition, quantity, and traceable physical evidence.
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Q4. Which specifications should an engineer verify before purchase?
Confirm 12 MB capacity, 3.3 V Flash-EPROM, target S7-1x00 CPU or SINAMICS compatibility, required endurance and retention, 24 x 32 x 2.1 mm dimensions, and 3 g weight.
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Q5. What physical evidence should I request before payment?
Ask for dated photos or video showing the complete 6ES7954-8LE03-0AA0 label, both faces, contact area, package label, seals, quantity, and any visible insertion or handling marks.
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Q6. Can 6ES7954-8LE04-0AA0 or another capacity replace this card?
Do not assume automatic interchangeability. The official listing identifies a successor, but the target CPU or drive firmware, configured article number, capacity, project requirements, and lifecycle approval must all be checked first.
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EN
