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CompactFlash Serie 500/500 Pro


The Cactus Technologies 503 Series Industrial Grade Compact Flash Memory Card is a SLC NAND based solid-state flash memory device that complies with the CompactFlash Association ATA standard in the CF Type I form factor. It is available in capacities from 1GByte to 64GBytes and intended for OEM applications needing a high endurance part with the highest performance or requiring the optional full extended temperature range of -45C to +90C or the Pro features:
Special Write Protect, ATA Security, DoD and Military Purge, Physical Write Protect Switch and Lock Features.

The 503 Series Compact Flash comes with full BOM Control, Long Life Cycles and is built with Stringent Quality Processes. As with our other Industrial Grade products, Cactus Technologies incorporates Industrial Grade ECC, Wear Leveling, Write Abort Protection Circuitry and Defect Management into the 503 Series CF, making it the most reliable device available. Custom Labeling, Custom ID and Preloaded Content are available based on customer requirements (see Custom Features).



Specifications   Features


Memory Type

Endurance Cycles

MTBF (Hours)


Standard Temperature

Extended Temperature

Sequential Read

Sequential Write

Shock / Vibration


Pro Feature Set

SMART Features


1GB - 64GB


>2 Million

4 Million

5 Years

0°C to +70°C

-45°C to +90°C



3000G / 30G

Up to Mode 5



  • Industry standard CF Type 1 Form Factor
  • Card capacities 1GB to 64GB
  • Supports True IDE Mode
  • Supports ATA PIO Mode 0-6
  • Support multiword DMA Mode 0-4
  • Supports UDMA Mode 0-6
  • Dual voltage support: 3.3V or 5.0V
  • Unique electronic serial card ID
  • Supports traceability barcode
  • Solid state design with no moving parts
  • Fast data transfer rates
  • High Data Reliability
  • High shock & vibration tolerances
  • Wide operating temperature range



Ordering Info

Industrial Grade CompactFlash series 503: KCxyz-50ab

x = Capacity y = Flag z = Temp. range a = DMA mode b = Revision


1G = 1GB

2G = 2GB

4G = 4GB

8G = 8GB

16G = 16GB

32G = 32GB

64G = 64GB

F = Fixed

R = Removable

blank = 0°C to +70°C

I = -45°C to +90°C

3 = DMA

4 = Non-DMA 

Blank = Standard Revision

P1 = Pro Revision

WP1 = Pro Revision with write protect swich