NFC Tag Ordering Guide
Buying the wrong tags for a project is one of the most expensive mistakes in NFC deployment. This guide covers chip selection, form factorform factorPhysical shape/packaging of NFC tags: stickers, cards, wristbandsView full → decisions, quantity tiers, supplier evaluation, and sample testing before committing to a production order.
Step 1: Define Requirements Before Browsing Suppliers
Answer these six questions before looking at any product page:
| Question | Why It Matters | Tool |
|---|---|---|
| What payload size do you need? | Determines chip minimum memory | Memory Calculator |
| What device types must read the tag? | Determines NFC-A vs NFC-F vs NFC-V | Compatibility Checker |
| Will the tag be on or near metal? | Standard inlays fail on metal | Read Range Estimator |
| What is the operating environment? | Temperature, humidity, UV, chemical | Chip Selector |
| Do you need security features? | password-protection, aes-encryption, sdm | — |
| What form factor? | dry-inlay, wet-inlay, label, card, tag | — |
Run the Chip Selector with these parameters to get a shortlist before you begin supplier conversations.
Step 2: Choose Chip Family
The chip defines memory size, security capabilities, and data-retention.
| Use Case | Recommended Chip | Memory | Key Feature |
|---|---|---|---|
| Simple URL redirect | NTAG213 | 144 B | Universal compatibility |
| Long NDEF payload (vCard, Wi-Fi) | NTAG215 | 496 B | Most consumer apps handle it |
| Large payload or future-proof | NTAG216 | 872 B | Head-room for payload growth |
| Anti-counterfeiting | NTAG 424 DNA (ntag-dna) | 416 B | aes-encryption, sdm |
| Automotive / industrial | NTAG I2C Plus | 1 KB | Dual interface (NFC + I2C) |
| Long-range item tracking | ICODE SLI (iso-15693) | 112 B | read-range up to 1 m |
| Metal surface | HF Metal tag (various) | Varies | Ferrite layer built in |
| Transit / loyalty (Japan) | FeliCa RC-SA01 (nfc-f) | 208 B | FeliCa system required |
Step 3: Choose Form Factor
| Form Factor | Description | Typical Use |
|---|---|---|
| dry-inlay | Chip + antenna, no adhesive | Embedded in packaging, lamination |
| wet-inlay | Chip + antenna + adhesive liner | Apply to smooth surfaces directly |
| Paper label | Wet inlayWet inlayAdhesive-backed NFC inlay ready for surface applicationView full → + printable paper face | Product labels, shelf tags |
| PET/polyester label | Wet inlay + PET face | Chemical-resistant environments |
| Epoxy disc | Chip + antenna in rigid epoxy | Keychains, outdoor objects |
| PVC card (ISO CR80) | Full credit-card size | Access badges, loyalty cards |
| On-metal label | Ferrite-backed wet inlay | Metal assets, machinery |
| Laundry tag | Chip encapsulated in silicone | Garment tracking |
For embedded applications, dry-inlay gives you freedom to design a custom antenna enclosure. For stick-on applications, wet-inlay or paper labels simplify deployment.
Step 4: Understand Quantity Tiers
| Quantity | Typical Unit Price (NTAG213) | Lead Time | MOQ Notes |
|---|---|---|---|
| 1–99 | $0.40–$1.00 | In stock | Samples/eval |
| 100–999 | $0.15–$0.30 | 1–2 weeks | Trial order |
| 1,000–9,999 | $0.08–$0.15 | 2–4 weeks | Pilot production |
| 10,000–99,999 | $0.05–$0.10 | 4–8 weeks | Production |
| 100,000+ | $0.03–$0.07 | 8–16 weeks | Volume; negotiate |
Prices vary significantly by form factor. On-metal tags cost 3–5× more than plain inlays. NTAG 424 DNA costs 4–8× more than NTAG213. Run the Tag Cost Calculator with your quantity and chip to model total cost.
Step 5: Evaluate Suppliers
| Criterion | What to Check |
|---|---|
| Chip authenticity | Demand a certificate of conformance; test originality-signature on samples |
| data-retention spec | Should be ≥ 10 years (NXP NTAG spec: 10 years @ 85°C peak) |
| write-endurance | ≥ 100,000 cycles for rewritable deployments |
| Pre-encodingencodingData writing to NFC tags during manufacturing productionView full → options | Can they encode your NDEF at the factory? At what cost per unit? |
| Serialisation | Can they print human-readable UID or custom serial on label face? |
| Custom printing | CMYK + spot UV on label face; are bleeds and dielines provided? |
| Sample policy | Free or low-cost samples before production commitment |
Step 6: Sample Testing Protocol
Before placing a production order, test a sample of 20–50 tags across the following:
- Verify uid uniqueness: scan all samples and confirm no duplicate UIDs.
- Read rangeRead rangeMaximum communication distance between reader and tagView full →: confirm spec'd range on iOS, Android, and your reader hardware.
- Write test: encode and read back 10 samples; verify byte-perfect retention.
- Environmental: expose 5 samples to your worst-case temperature and humidity; retest.
- Form factor: apply to your actual substrate (curved surface, metal, fabric); retest range.
Only proceed to production if all sample tests pass. A 2–4 week sample test cycle costs much less than a failed 50,000-unit production run.
Red Flags to Avoid
- Suspiciously cheap chips from unverified sources — counterfeit NTAG chips fail originality signatureoriginality signatureECC digital signature proving chip authenticity (NXP)View full → checks
- Suppliers who cannot provide a datasheet for the exact chip variant
- Pre-encoded tags where the encoding is not verifiable (no raw read capability offered)
- MOQs that force over-ordering before you have validated demand