ST25TV02K vs Tag-it HF-I Plus

ST25TV02K adds NFC Forum Type 5 and energy harvesting output vs Tag-it HF-I Plus. Both offer 256 bytes, ISO 15693, 13.56 MHz. Compare security and features.

Side-by-side specs

Frequency

ST25TV02K: 13.56 MHz
Tag-it HF-I Plus: 13.56 MHz

Protocol

ST25TV02K: ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5
Tag-it HF-I Plus: ISO/IEC 15693, ISO/IEC 18000-3

Memory

ST25TV02K: 256 bytes (2048 bits) EEPROM, organized in 64 blocks of 4 bytes
Tag-it HF-I Plus: 2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits each, EEPROM

Interface

ST25TV02K: RF (contactless), Energy Harvesting output
Tag-it HF-I Plus: RF (contactless)

Temp Range

ST25TV02K: -25°C to +85°C
Tag-it HF-I Plus: -40°C to +85°C

Form Factor

ST25TV02K: SO8, TSSOP8, UFDFPN8
Tag-it HF-I Plus: Wafer (200mm / 8 inch), die size 1296 × 1116 μm (excluding scribe), available with grinding to 265 μm or 150 μm, NI/AU or AU bumps, sawn on foil frame

Security

ST25TV02K: 32-bit password protection, lock bits, AFI (Application Family Identifier)
Tag-it HF-I Plus: Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked

Spec	ST25TV02K	Tag-it HF-I Plus
Frequency	13.56 MHz	13.56 MHz
Protocol	ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5	ISO/IEC 15693, ISO/IEC 18000-3
Memory	256 bytes (2048 bits) EEPROM, organized in 64 blocks of 4 bytes	2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits each, EEPROM
Interface	RF (contactless), Energy Harvesting output	RF (contactless)
Temp Range	-25°C to +85°C	-40°C to +85°C
Form Factor	SO8, TSSOP8, UFDFPN8	Wafer (200mm / 8 inch), die size 1296 × 1116 μm (excluding scribe), available with grinding to 265 μm or 150 μm, NI/AU or AU bumps, sawn on foil frame
Security	32-bit password protection, lock bits, AFI (Application Family Identifier)	Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked

Verdict

Choose the ST25TV02K if you need energy harvesting capabilities or NFC Forum Type 5 compatibility. This chip operates at 13.56 MHz with 256 bytes of EEPROM organized in 64 blocks of 4 bytes, supporting ISO/IEC 15693, ISO/IEC 18000-3 mode 1, and NFC Forum Type 5 protocols. The energy harvesting output allows you to power external circuits from the RF field, enabling battery-free sensor applications or indicator LEDs. Security includes 32-bit password protection, individual lock bits per block, and AFI for application segmentation. The NFC Forum Type 5 support ensures compatibility with modern NFC-enabled smartphones and readers, making it suitable for consumer-facing applications where tap-to-read functionality matters. Choose the Tag-it HF-I Plus if you require a proven ISO 15693 solution for item-level tracking without needing energy harvesting or NFC Forum compatibility. Operating at 13.56 MHz with 256 bytes of user memory in 64 blocks of 32 bits each, it supports ISO/IEC 15693 and ISO/IEC 18000-3 protocols. Each chip includes a factory-programmed and locked 64-bit UID for guaranteed unique identification, critical for supply chain and asset tracking where duplicate IDs cannot be tolerated. The individual block locking mechanism with separate user and factory lock bits provides granular write-protection control. This chip suits industrial inventory management, library systems, and logistics applications where ISO 15693 compatibility and reliable unique identification are priorities over smartphone NFC interaction or energy harvesting features.

FAQ

Do both ST25TV02K and Tag-it HF-I Plus have the same memory capacity?

Yes, both chips offer 256 bytes (2048 bits) of EEPROM user memory organized in 64 blocks. The ST25TV02K uses 4-byte blocks while the Tag-it HF-I Plus uses 32-bit (4-byte) blocks, functionally equivalent.

What is the main difference between ST25TV02K and Tag-it HF-I Plus?

The ST25TV02K includes an energy harvesting output and NFC Forum Type 5 support for smartphone compatibility, while the Tag-it HF-I Plus focuses on ISO 15693/18000-3 compliance with a factory-locked 64-bit UID. The ST25TV02K uses 32-bit password protection whereas the Tag-it HF-I Plus relies on block locking only.

Can Tag-it HF-I Plus work with NFC smartphones?

The Tag-it HF-I Plus supports ISO 15693 but is not NFC Forum Type 5 certified, so smartphone compatibility depends on the phone's NFC reader supporting ISO 15693 protocol natively, which is less common than NFC Forum Type 5 support found in the ST25TV02K.

Sourcing ST25TV02K or Tag-it HF-I Plus in volume?

Roxtron builds custom RFID and NFC products around both ST25TV02K and Tag-it HF-I Plus. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.