Preprinted CR80 125KHz EM4200 RFID Cards Pack of 100
- Product Code: RCC22
- Availability: In Stock
-
$56.00
- 5 or more $23.48
- 10 or more $19.57
- 50 or more $15.15
- 100 or more $14.50
The EM4200 is a low-frequency (LF) 125 kHz read-only RFID chip manufactured by EM Microelectronic. It is widely used as a direct, high-performance replacement for the classic EM4100/4102 series in access control, animal ID, and industrial tagging.
1. Core Definition
The EM4200 is a CMOS integrated circuit designed for passive RF transponders. It is a factory-programmed, read-only device, meaning its unique ID (UID) is permanently written during manufacturing via laser ROM and cannot be rewritten in the field.
2. Key Technical Specifications
Parameter | Specification |
Chip | EM4200 (EM Microelectronic) |
Frequency | 125 kHz (operating range 100–150 kHz) |
Memory | 128-bit Laser ROM (64/96/128-bit UID options) |
Mode | Read Only (No user writable memory) |
Modulation | Manchester, Biphase, PSK, FSK2 |
Features | On-chip resonant capacitor (0/75/250 pF), on-chip rectifier |
Read Distance | Typically 5–12 cm (depends on reader/coil) |
Temp Range | -40°C to +85°C |
The chip includes an integrated voltage limiter and rectifier, allowing it to be powered entirely by the RF field from an external coil without needing external components.
3. Protocol Compatibility
- Backward Compatible: Fully compatible with EM4100, EM4102, EM4005, and EM4105protocols. Readers configured for these older chips can typically read EM4200 tags without modification.
- Standards: Supports ISO 11784/11785 (FDX-B) for animal identification.
4. Common Applications
- Access Control Systems: Office doors, gate entry (often in CR80 card or key fob format).
- Animal Identification: Livestock tracking (FDX-B standard).
- Industrial & Logistics: Asset tracking, process control.
- Anti-Counterfeiting: Product authentication tags.
5. Comparison with T5577
Unlike the T5577 (which is read/write and configurable), the EM4200 is read-only. This makes it more secure against cloning in some contexts (as the ID is fixed at the factory) but less flexible for applications requiring data updates.
In summary, the EM4200 is a robust, low-cost solution for applications requiring a simple, permanent identification number with good read range and backward compatibility.