Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"title":"Schneider Electric RXM4AB2BD | 24V DC 4 C\/O Plug-in Relay 6A","imgUrl":"https:\/\/img.chinax.com\/nimg\/f3\/57\/f9f6569a71f7ef1c79a14c625699-200x200-1\/schneider_electric_rxm4ab2bd_7c_24v_dc_4_c_2fo_plug_in_relay_6a.jpg","attrs":{"Brand Name":"Schneider Electric","Electrical Rating":"G","Model Number":"RXM4AB2BD","Price":"Negotiable"}}
{"title":"Schmersal BP22N | BP 22 N(S) Magnetic Actuator for Safety Switches","imgUrl":"https:\/\/img.chinax.com\/nimg\/0d\/a1\/48938da12827efa702ca9c3e81ac-200x200-1\/schmersal_bp22n_7c_bp_22_n_28s_29_magnetic_actuator_for_safety_switches.jpg","attrs":{"Brand Name":"Schmersal","Model Number":"BP22N","Certification":"ATEX","Place of Origin":"DE"}}
{"title":"Danfoss 018F6857 | BF Series Solenoid Coil, 230V AC 50\/60Hz, 8W, IP65","imgUrl":"https:\/\/img.chinax.com\/nimg\/f0\/7f\/2a31112af3a85ab3ee6dea8b61ac-200x200-1\/danfoss_018f6857_7c_bf_series_solenoid_coil_2c_230v_ac_50_2f60hz_2c_8w_2c_ip65.jpg","attrs":{"Model Number":"018F6857","Brand Name":"Danfoss","Minimum Order Quantity":"1","Delivery Time":"Negotiable"}}
6ES7952-1KY00-0AA0 SIMATIC S7-300 & C7 Micro Memory Card (MMC), 64 MB Flash, 3.3 V, for CPU 312 and above + OP/TP 170/270/370. Long-life EEPROM, requires PG/PC or CPU for formatting.
Product Overview
6ES7952-1KY00-0AA0 is a SIMATIC S7-300 / C7-series Micro Memory Card (MMC) with 64 MB (512 Mbit) non-volatile Flash memory. It serves as the mandatory operating memory + load memory for S7-300 CPUs (from CPU 312 onward) and is also used for storing recipes, data logs, and as a firmware update carrier. The card operates at 3.3 V, uses a 24-pin proprietary MMC form factor (not standard SD), and must be formatted by the S7-300 CPU or via a PG/PC with STEP 7 — it cannot be formatted in a PC card reader. Compatible with S7-300 CPUs, C7 all-in-one units, and certain TP/OP 170/270/370 HMI panels (as recipe/alibi memory).
Technical Specifications (Memory & Electrical)
Parameter
Specification
Order Number
6ES7952-1KY00-0AA0
Product Family
SIMATIC S7-300 — Micro Memory Card (MMC)
Memory Capacity
64 MB (≈ 512 Mbit usable Flash)
Technology
NAND Flash EEPROM (non-volatile)
Operating Voltage
3.3 V DC (supplied by CPU / PG slot)
Interface / Pinout
24-pin proprietary MMC (not SD/MMC standard)
Write Cycles (Endurance)
≥ 100,000 erase/write cycles per sector
Data Retention
≥ 10 years @ 40 °C (typical)
Typical Use Cases
User program (Load Memory), DB storage, Recipes, Firmware Update, HMI backup
S7-200 (uses S7-200 MC / 24xx cards), S7-400 (uses FEPROM/SIMATIC MMC ≠ this type), older S5
Format Requirement
Must be formatted by S7-300 CPU in STOP mode or via STEP 7 PG/PC (Card Reader + Simatic Card Mode) — not readable in Windows card readers
Insertion / Removal
Insert with power OFF → power ON CPU to detect; removal only with CPU power OFF
Dimensions (L × W × H)
32 × 24 × 2.1 mm (MMC form factor)
Weight (Approx.)
2 g
Ambient Temp. (Storage / Op via CPU)
-40 … +85 °C (storage); card active only inside CPU temp. range
Commodity Code / ECCN
8542 32 00 90 / EAR99
RoHS / REACH
Compliant
Key Features
Mandatory for S7-300 MMC-Based CPUs: S7-300 CPUs from CPU 312 (firmware 2.x+) boot and run programs exclusively from the MMC — no card = no RUN.
64 MB Capacity: Ample for large user programs, data blocks, and recipe storage — also suitable for firmware update files (if <64 MB uncompressed image).
Long Data Retention & High Endurance: Industrial-grade Flash with 10-year retention and 100 k write cycles — suitable for cyclic data logging (though frequent cyclic writes should use CPU work memory / DBs with retain).
Single-Source SIMATIC Spare: Identical to what ships with new S7-300 CPUs — direct spare/replacement part.
Typical Applications
S7-300 PLC Spare / Replacement MMC: For CPU program backup, cloning, or replacing a failed/damaged card.
Program Distribution: Pre-load project + HW config on MMC at OEM shop, ship to site for plug-and-run commissioning.
Recipe & Data Log Storage: Store HMI recipes or archived process data on the card for later retrieval.
Firmware Update Carrier: Load S7-300 CPU firmware update file onto MMC and execute update via CPU menu.
S7-300 MMC family sizes: 6ES7952-1KK00 (8 KB mini), -1KH00 (32 KB), -1KL00 (64 KB mini), -1KM00 (128 KB mini), -1AP00 (2 MB), -1AS00 (4 MB), -1AY00 (8 MB), -1AK00 (16 MB), -1AM00 (32 MB), -1KY00 (64 MB — this item). For S7-1200 use S7-1200 MC (6ES7954-...); for S7-1500 use SIMATIC Memory Card (6ES7954-8LF01 etc.).
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E...
