Card technology · 8 min read
NFC cards for business: chips, uses and how to order
An NFC card is a contactless smart card that professional readers — and in many cases smartphones — can read with a tap. For a business programme, the chip inside matters more than the card itself: it decides security, smartphone compatibility and which readers the card will work with. This guide maps the chip families we supply and how to pick the right one.
1. The 30-second answer
Pick the chip by the job: NTAG 213 when smartphones must read the card (digital business cards, loyalty links, review pages); Mifare Classic 1K/4K or compatible FUDAN chips for existing access-control and membership systems; Mifare DESFire EV1 (2K, 4K or 8K) when security is the priority — corporate badges, sensitive areas, transport; ICODE SLIX for library and inventory programmes; and the 125 kHz family (EM4102, EM4200, TK4100, T5577) for legacy proximity-access readers. All are supplied printed, encoded and tested, from 100 units.
2. NFC, RFID and low frequency: the three radio families
NFC (13.56 MHz, ISO 14443) is the modern contactless standard: short range (0–4 cm), encryption available, and native smartphone support. ISO 15693 (also 13.56 MHz) trades smartphone convenience for a longer reading distance, which is why libraries and asset-tracking programmes use it. The 125 kHz low-frequency family is the veteran of proximity access control: no encryption, but an enormous installed base of readers in offices, car parks and gyms. Strictly speaking only ISO 14443 chips are “NFC”, but in practice business buyers compare all three families — so we cover them together.
3. The chip families we supply
| Chip | Standard | Memory | Typical business use |
|---|---|---|---|
| NTAG 213 | ISO 14443-A (NFC Forum Type 2) | 144 bytes | Smartphone interaction: digital business cards, loyalty links, Google-review cards |
| NXP Mifare Ultralight EV1 | ISO 14443-A | 48 / 128 bytes | Event passes, short-cycle tickets, transport day cards |
| NXP Mifare Classic 1K (MF S50) | ISO 14443-A | 1 KB | Access control and membership on existing Mifare readers |
| NXP Mifare Classic 4K (MF S70) | ISO 14443-A | 4 KB | Multi-application badges (access + canteen + printing) |
| FUDAN 1K / 4K | ISO 14443-A (Mifare-compatible) | 1 / 4 KB | Cost-effective alternative for Mifare Classic reader environments |
| Mifare DESFire EV1 2K / 4K / 8K | ISO 14443-A, AES encryption | 2 / 4 / 8 KB | High-security corporate badges, public transport, sensitive sites |
| ICODE SLIX | ISO 15693 | 896 bits | Libraries, media management, inventory and asset tracking |
| EM4102 / EM4200 / TK4100 | 125 kHz, read-only | Fixed UID | Legacy proximity access (offices, car parks, gyms) |
| T5577 | 125 kHz, re-writable | Configurable | Migrations: can emulate common legacy formats during reader transitions |
Every chip above can be combined with full-colour printing, variable data (names, numbering, barcodes or QR codes) and finishing options on a standard 85.5 × 54 mm PVC body.
5. Choosing the right chip: a decision guide
Smartphones must read the card? NTAG 213. It is the only family here with universal native support on iPhone and Android.
Existing reader infrastructure? Match the family: Mifare Classic (or FUDAN-compatible) for 13.56 MHz legacy systems, EM/TK chips for 125 kHz proximity readers. Share your reader model and we validate compatibility before production.
Security first? DESFire EV1 with AES — the standard for corporate access and transport. Mifare Classic’s legacy encryption is no longer considered secure for new sensitive deployments.
Items rather than people? ICODE SLIX (ISO 15693) reads at a longer distance and is the library and inventory standard.
Migrating between systems? T5577 is re-writable and can emulate common legacy formats — useful while readers are being replaced.
6. Ordering in volume: what to prepare
Three things speed up a quotation: the chip family (or the reader model, if you are unsure), the quantity (programmes start at 100 units; unit cost drops significantly with volume), and the personalisation needed — print design, variable data, encoding content. Artwork is checked and a digital proof supplied before any production run, and encoded batches are tested before dispatch.
7. Frequently asked questions
Do NFC cards work with iPhone and Android?
NTAG 213 cards do, natively: tapping the card opens the encoded link on both platforms without an app. Access-control families (Mifare Classic, DESFire) are designed for professional readers, not phones.
Mifare Classic or DESFire — which one?
Match Classic (or FUDAN-compatible) chips to an existing Classic reader base. For any new deployment where security matters, choose DESFire EV1: AES encryption, mutual authentication, and capacity (2K to 8K) for several applications on one badge.
Can you match the cards to my existing access system?
Yes. Send us your reader model or a working sample card: we identify the chip family, confirm compatibility, and test the encoded batch against reference readers before shipping.
Is there a subscription for NFC business cards?
Not with us. The chip is encoded with the destination you choose and the cards are yours. If you later want to change the destination, NTAG chips can be re-encoded unless you ask us to lock them.
Plan your NFC card programme
Tell us the use case, the quantity and — if you have one — the reader environment. You will receive an itemised quotation with chip recommendation, printing and encoding included.