tk4100 rfid cards

Description

Tk4100 rfid cards for access control are widely applied in access control system and related applications. Each ID card has an unique digit ID number (This 125khz RFID card is read only and not re-writable)

Here’s a more detailed breakdown:

• Chip:
  
  The TK4100 chip is a CMOS integrated circuit used in 125kHz read-only RFID cards.
• Frequency:
  
  They operate at a frequency of 125kHz, which is considered a low-frequency range.
• Read-only:
  
  TK4100 cards are designed to be read by RFID readers and cannot be rewritten.
• Compatibility:
  
  The TK4100 chip is compatible with the EM4100 format.
• Applications:
  
  These cards are widely used for access control in buildings, time and attendance management, and other identification purposes.
• Physical Characteristics:
  
  They are typically the size of a standard credit card (CR80) and are made from PVC material.
• Reading Range:
  
  The read range for TK4100 cards is typically short, around a few centimetres.
• Advantages: Their short reading range can help reduce interference and improve accuracy in certain environments.