PCF7931AS/3851,122

Series:	*
Part Status:	Obsolete

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Introduction to PCF7931AS/3851,122 Application Field and Working Principle.RFID (Radio Frequency Identification) technology provides a relatively easy and cost-effective way of identifying and tracking products. RFID transponders, tags, readers and antennas are the key components in an RFID system. The PCF7931AS/3851,122 series is a type of RFID transponder, which is commonly used in the retail industry.The PCF7931AS/3851,122 Transponder.The PCF7931AS/3851,122 is a small, batteryless RFID transponder which is typically used in retail applications, such as for inventory tracking, access control and product identification. The transponder is built in a flat package, and measures 4.17mm x 3.94mm x 0.8mm in size. The transponder contains non-volatile memory, which stores the electronic product code (EPC).The PCF7931AS/3851,122 is frequency-compatible with the UHF Global Gen 2 (V2.0.0) protocol. This transponder has a read range of up to 6m when using a reader antenna, and a write range of up to 2m when using a write antenna. This transponder also has a unique integrated read protection feature, which can protect up to 32 bits of data from accidental overwriting.Application of the PCF7931AS/3851,122.The PCF7931AS/3851,122 is a common choice in retail applications due to its small size and strong read/write performance. It is used for inventory tracking, access control and product identification. It can also be used in security applications, such as for the tracking of valuable items.In retail applications, the PCF7931AS/3851,122 can be used to track and manage inventory levels. It is also used to control access in stores and warehouses. In security applications, the transponder can be used to identify and track valuable items.Working Principle of the PCF7931AS/3851,122.The working principle of the PCF7931AS/3851,122 can be broken down into two main stages. First, the transponder is activated by a wireless signal from an RFID reader. When the reader broadcasts a wireless signal, the transponder listens and "hears" it. It then starts transmitting its electronic product code (EPC) back to the reader. The reader can then read the transponder\'s ID and store the information in its memory.The second stage involves the reader writing data to the transponder. During this stage, the reader sends a wireless signal containing instructions, data, and other information to the transponder. The transponder then stores the data in its non-volatile memory. The PCF7931AS/3851,122 is powered by the reader\'s wireless signal, so does not require a separate power source. This makes the transponder particularly useful for applications where battery power is not available or is difficult to access.Conclusion.The PCF7931AS/3851,122 is a small, batteryless RFID transponder which is commonly used in retail applications for inventory tracking, access control and product identification. Its frequency-compatibility with UHF Global Gen 2 protocol makes it ideal for applications where a strong read/write performance is required. The working principle of the transponder involves two stages: listening for a wireless signal from a reader, and then storing data from the reader in its non-volatile memory. This transponder is a popular choice for retail, security and other applications due to its small size and lack of need for a separate power source.

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