OEM SD5-C 125kHz EM Printable Proximity Card

OEM SD5-C EM Card

The OEM SD5-C Printable Card functions as a passive RFID credential for low-frequency security environments. Each unit contains a factory-programmed chip operating at 125kHz. Internal antennas capture energy from the reader’s electromagnetic field to transmit identification numbers. This hardware utilizes the standard EM protocol for interoperability with Wiegand-compatible readers. The physical construction follows the ISO 7810 ID-1 form factor. A high-quality PVC coating covers both sides of the card. This finish supports direct-to-card printing using thermal transfer or dye-sublimation technologies. Procurement managers select this model for employee identification badges requiring electronic access.

The thin profile measures approximately 0.8mm. This allows the credential to pass through standard rollers in desktop card printers without jamming. Unlike thicker clamshell cards, these units fit into standard wallets. The white surface provides a neutral base for high-resolution graphics and employee portraits. Data security relies on the fixed 64-bit serial number embedded during manufacturing. These cards are read-only, which prevents unauthorized data modification after deployment. The inductive coupling mechanism provides a typical read range of up to 10 centimeters.

Key Features

• Low-Frequency Transponder
  The 125kHz passive chip architecture ensures compatibility with legacy and modern proximity readers.

• Print-Ready Surface Chemistry

  • Dye-sublimation receptor coating for edge-to-edge printing
  • Heat-resistant PVC construction prevents warping during thermal transfer
  • Standard white finish maintains color accuracy for ID portraits

• ISO-Compliant Dimensions
  Standard CR80 sizing ensures compatibility with all commercial card dispensers and badge holders.

• Integrated Circuit Stability

  • Manchester-encoded signal transmission reduces data collision
  • Inductive copper coil optimized for maximum read range efficiency
  • Non-volatile memory retains unique ID without internal power

Specifications

What’s in the Box

• OEM SD5-C RFID Proximity Cards (Quantity as per order)

Why Choose OEM SD5-C EM Card

• High-density surface compatibility allows for sharp text and photo reproduction on thermal printers.

• Standardized ISO thickness prevents mechanical failure during automated credential issuance cycles.

• Fixed 64-bit serial numbers provide unique identification for every user in the access database.

• Passive inductive technology eliminates maintenance requirements since no internal batteries are necessary.

• The chip architecture employs Manchester encoding for data transmission. This ensures reliable signal decoding even in environments with minor electromagnetic interference. However, users must avoid the internal antenna path if punching holes to maintain card functionality.