NTAG203 vs. ICODE SLIX2
These two chips, the NTAG203 and the ICODE SLIX2 are from different NFC chip families. The NTAG203, manufactured by NXP belonging to the NTAG family, and the ICODE SLIX2, also manufactured by NXP.
The NTAG203 was the first of the NTAG series of chips from NXP released in 2011. The previous generation to the current NTAG series of chips.
The NTAG203 is no longer in production and we very, very strongly recommend that you do not purchase any tags using this chip. They are either very old or non-genuine NXP chips.
The ICODE SLIX is part of NXP's ICODE family of chips. The ICODE series is older than NXP's NTAG series and has a number of significant differences - particularly a longer 8 byte UID and a longer memory retention specification of 50 years. However, this ICODE SLIX2 variant is newer and contains a large numebr of feature enhancements.
Generally, these chips are not commonly used in mobile phone NFC applications. While they are similar in cost to the NTAG series, Seritag generally recommend NTAG unless the additional specified memory retention lifespan is specifically required. The ICODE chips are not available in as many formats as the NTAG chips and are typically made to order.
Both these chips have a strong ScanStrength and will work very well with mobile phones.
Key Features
Key Specifications
| Brand | NXP |
| Chip Series | NTAG |
| NFC Forum | Type 2 |
| Availability | |
| ScanStrength | High |
| Brand | NXP |
| Chip Series | ICODE |
| NFC Forum | Type 5 |
| Availability | Medium |
| ScanStrength | High |
Phone compatibility
Typical Use Cases
- Marketing & Advertising
- Vouchers
- Bluetooth Pairing
- GS1 EPC/RFID
- Object Identification
- Product Information
- PLCR
- Libraries
- Item tagging
- Counterfeit protection
- Asset marking
User Features
| NTAG203 | ICODE SLIX2 | |
|---|---|---|
| Total memory (bytes) | 168 | 316 |
| User memory (bytes) | 144 | 320 |
| Max URL (chars) | 136 | 250 |
| UID (bytes) | 7 | 8 |
| ECC signature | - | |
| 32-bit password | - | |
| UID ASCII mirror | - | - |
| Scan Counter | - | |
| Counter ASCII mirror | - | - |
| Lockable |
Technical Specifications
| NTAG203 | ICODE SLIX2 | |
|---|---|---|
| Chip thickness | 120 µm | 120 μm |
| NFC Forum | Type 2 | Type 5 |
| Operating Freq. | 13.56Mhz | 13.56Mhz |
| Data Trans. Rate | 106 kbit/s | 53 kbit/s |
| Input Capacitance | 50pf | 23.5 pf |
| Fast read | - | |
| Data retention (years) | 5 | 50 |
| Write endurance (cycles) | 10000 | 100000 |
| Anticollision | - | - |
| Standard | ISO/IEC 14443 A | ISO/IEC 15693 |
| Release date | 2011 | 2016 |
Other popular comparisons
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Details of our NFC tag encoding services.
How to order ID / QR code printing on your NFC tags.
How you can order a UID scan of your NFC tags.
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