How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
Once production ends, supply depends on remaining stock.
No replacement announced yet. Tell us the application and we will propose an alternative.
The Siemens SIMATIC S7 memory card (6ES7954-8LF03-0AA0) is a 3.3 V flash card with 24 MB capacity for SIMATIC S7-1x00 CPUs and SINAMICS drives, rated for a minimum of 500,000 write/delete cycles at 3 g card weight. Data retention after the final programming action is at least 10 years under normal use.
Siemens lists this card as a spare part, so it is meant to replace a failed or lost memory card on an existing S7-1x00 CPU or SINAMICS drive rather than to spec a new build. 24 MB fits a mid-size S7-1200 or S7-1500 program plus recipe or data storage - check the target CPU's maximum supported card size before ordering. The 500,000-cycle minimum write/delete rating covers routine commissioning and program changes well beyond typical use.
Replacement load memory card for SIMATIC S7-1200 and S7-1500 CPUs, and for SINAMICS drives that use the same 3.3 V flash card format for program and parameter storage.
| eClass | 16 27-24-22-12 |
|---|---|
| ETIM | 10 EC000192 |
| IDEA | 4 6458 |
| UNSPSC | 15 43-20-14-02 |
| General Product Approval | Manufacturer Declara- tion |
|---|
| Part number | 6ES7954-8LF03-0AA0 |
|---|---|
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4047623409038 |
| Net weight | 0.028 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 0.528 kg |
| Ships from | Türkiye |
| Dispatch | 11 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for 6ES7954-8LF03-0AA0 is 85235110.
The EAN (GTIN) of 6ES7954-8LF03-0AA0 is 4047623409038.
6ES7954-8LF03-0AA0 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
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