RFID Key Fobs

RFID Key Fobs and RFID Tags for Access Control

RFID tags operate on the same principle as contactless cards. Each RFID key fob contains an RFID chip and an integrated antenna circuit that enables data transmission to a reader via proximity. Compared to a standard card, the antenna is smaller, making RFID key fobs compact and convenient for everyday use.

These RFID tags for access control are ideal for intercom systems, residential complexes, office buildings, parking areas, and industrial facilities.

Popular RFID Frequencies and Chip Types

The most commonly used RFID chips include:

• 13.56 MHz – Fudan 1K, MIFARE-compatible
• 125 kHz – TK4100, EM4100, EM-Marine
• UHF – for logistics and extended-range applications

RFID key fobs operating at 13.56MHz and 125kHz are the most widely used in access control systems. Modern chips may include AES encryption for enhanced security and protection against unauthorized cloning.

Types of RFID Key Fobs

1. RFID Tags with Full-Color Printing

Custom RFID key fobs with full-color printing combine access control functionality with effective branding. They are commonly used by real estate developers, residential associations, and companies that require visual identification.

2. Standard ABS RFID Key Fobs

These RFID key fobs are made from durable ABS plastic, resistant to impact and wear. They are suitable for intensive daily use but are not recommended for full-color printing. Laser engraving of serial numbers is possible.

Numbered RFID tags are typically equipped with EM-Marine or TK4100 chips, commonly used in 125kHz access control systems.

3. RFID Cloning Tags

There are also RFID cloning tags that allow UID programming. For example:

• T5577 chip – can clone TK4100 UID
• 13.56MHz Zero chip – allows cloning of MIFARE Classic 1K (4-byte UID)

These solutions are used for quick replacement of lost key fobs or for testing existing access control systems.

Advantages of RFID Key Fobs

• Compact size and easy to use
• Compatible with most access control systems
• Available in 125kHz, 13.56MHz, and UHF
• Encryption and enhanced security options
• Customizable and engravable

Looking for RFID key fobs or RFID tags for access control? We provide expert consultation to help you choose the right frequency and chip type, fast production, and guaranteed system compatibility.