What Are Industrial SD Cards?
SD cards are memory devices that follow the Secure Digital Association’s parameters and are appropriate for use in a huge array of devices, from cameras to gaming systems. Although SD cards are widely used, they are not all created equal. For industrial applications, using the same SD card that you would find in consumer or commercial grade devices is risky. These kinds of cards are generally not capable of meeting the demands of industrial operating conditions without loss of functionality. For this reason, it is important for OEMs and engineers working with industrial applications to choose industrial SD cards. Industrial SD cards have special features that allow them to function in devices facing extreme conditions without compromising the critical data they store.
Industrial SD Card Basics
SD cards are small memory cards that users insert into host devices for data transfer and storage. They offer non-volatile storage, which means that they do not require power for data access. All SD cards are designed according to the specifications of the Secure Digital Association. For this reason, all SD cards share the same basic characteristics and can be used interchangeably in devices.
Industrial SD cards can tolerate temperatures ranging from -40 degrees C to 85 degrees C, plus high levels of shock and vibration. They are used in applications that store critical data. They can also be found in devices used in extreme conditions, from transportation applications to automation and healthcare.
SLC NAND Flash
A defining characteristic of industrial SD cards is SLC (single-level cell) NAND flash. Single-level cell NAND is flash memory that stores one bit of data per cell. This reduces the risk of data loss associated with power failures and allows the memory to operate as quickly as possible. SLC NAND flash also offers the longest lifespan of all forms of flash memory.
Locked Bill of Materials
Another critical component of industrial SD cards is their locked bill of materials, or locked BOM. This feature ensures that the firmware, flash controller, and other essential parts of the SD card cannot be changed as long as the product number remains the same. If there is a need to change a part, then a new product number will be issued. Customers will have a chance to place a final order of cards before the change is made. This helps to ensure that OEMs won’t experience unanticipated failures in the field and can manage the transition to the new card design.
Find out if industrial SD cards are the right storage solution for your device by talking to a member of the product team at Delkin. We’re here to assist you in selecting rugged storage products, provide engineering samples, and much more.
ORDER DELKIN INDUSTRIAL FLASH STORAGE TODAY through our distribution partner Newark.