Functioning and Benefits of NFC Tag

NFC (near field communication) is advanced highly popular wireless technology that facilitates the transfer of data between two devices in close proximity to each other. The technology offered by NFC Tag manufacturer in Delhi is mainly used as a faster and safer alternative to QR codes for short-range applications such as payments through mobile phones (digital payment).


NFC metal tags manufacturer in Delhi are known for their versatility. These are immensely useful for transferring small amounts of data easily. The process involves tapping the surface. It takes less time and effort as compared to Bluetooth pairing and other conventional wireless communication approaches. For instance, headphones and digital cameras come with embedded NFC tags. Users can tap to initiate a connection with a given device fast.

Here’s How NFC Tags Work:

Android 12 NFC Toggle

NFC Tag manufacturers in India offer tags in a wide range of shapes and sizes. Those in circular and square shapes are the simplest types with very simple construction comprising of a thin copper coil and a small storage space fixed on a microchip.

The copper coil serves as a wireless receiver of power for the tag. It receives power from the NFC reader through electromagnetic induction. The tag gets energized as soon as it comes in contact with a powered NFC reader. This helps the tag with the process of transmission of stored data within its microchip to the device.

In case of involvement of sensitive data, tags use public-key encryption to prevent spoofing and other forms of malicious attacks. NFC tag offered by NFC label manufacturer in India has a very simple structure. One of the simplest examples of this is hotel keycards (room access cards). These are mainly simple plastic cards comprising of some copper windings combined with memory on a microchip. NFC-equipped credit and debit cards also follow a similar principle. These comprise of thin copper traces running alongside the perimeter of the card.

NFC labels manufacturer in Delhi offers NFC tags in varied form factors such as small stickers and plastic cards similar to credit cards.

Powered NFC devices such as smartphones and tablets can work as an NFC tag. This tag is different from RFID which supports only one-way communication. An NFC tag is capable of transferring bi-directional data. This facilitates the phone to emulate an embedded NFC tag (contactless payments). These devices are advanced with a similar basic mode of operation.

Types of NFC Tags

Most forms of NFC tags offered by NFC metal label manufacturers in Delhi adhere to the ISO 14443 standard for safe and quick transmission of wireless, proximity-based data. The tags are also categorized into 5 sub-types. These are labeled type 1 through 5.

Tags categorized under Type 1 are the least advanced. These are capable of storing very less data (under 1 kilobyte). That is negligible (a few hundred characters of text). This tag holds memory to store URL or Wi-Fi password. Additionally, Type 1 does not have good transfer speed (just about 100kbps).

Type 5 NFC tags can hold as much as 32KB in memory. These are also capable of transferring data approximately 4 times faster when compared to Type 1 tags. Although not a lot of data as that of typical microSD card of the same physical size, it is ample for smaller uses such as access control and ticketing. Such tags offer many additional features including:

– Tamper resistance
– Better interference handling capabilities

Varying Capacity and Speed

NFC tags will vary with respect to memory capacity and read speeds. Advanced NFC tags are expensive and cost a lot more to manufacture. NFC tags are usually read-write enabled. This helps in reusing of tags as needed. Reuse will help cut down the overall cost of deployment for large-scale needs.