STMicroelectronics ST25-TAG-BAG-UI1

Overview

ST25-TAG-BAG-UI1 from STMicroelectronics is a ready-to-use evaluation kit containing five NFC tag variants based on ST25TV02KC (NFC Forum Type 5, ISO/IEC 15693, 2 Kbit, 23–99 pF) and ST25TN01K (NFC Forum Type 2, ISO/IEC 14443, 1 Kbit, 50 pF) ICs, each paired with purpose-optimized antennas-including tamper-detect and paper-based wet inlay configurations-for rapid prototyping of asset tracking, smart packaging, and anti-counterfeiting systems.

For engineers reviewing the ST25-TAG-BAG-UI1 datasheet, ST25-TAG-BAG-UI1 application, ST25-TAG-BAG-UI1 contents, or ST25-TAG-BAG-UI1 equivalent, this kit enables direct comparison of NFC tag performance across antenna geometry, substrate material, capacitance tuning, and tamper-response behavior under real-world RF coupling conditions.

Technical Context

The ST25-TAG-BAG-UI1 comprises discrete NFC tag units-not a single integrated device-each integrating either an ST25TV02KC or ST25TN01K IC with a tuned antenna structure. ST25TV02KC supports ISO/IEC 15693 at 13.56 MHz with 2 Kbit EEPROM, 23–99 pF load tolerance, and hardware-based tamper detection; ST25TN01K complies with ISO/IEC 14443A, offers 1 Kbit EEPROM, and operates with 50 pF antenna matching.

Antenna variants include 23 mm diameter smart labels, 36 mm × 18 mm paper-based wet inlays, and a 75 mm × 30 mm tamper-detect label-enabling evaluation of read range, orientation sensitivity, substrate-induced detuning, and physical security response across form factors and materials.

Key Specifications

Availability

ST25-TAG-BAG-UI1 is available at Aetrix Electronics and suitable for NFC tag evaluation, RFID system integration, and secure authentication prototyping requiring stable component supply and verified reference hardware.

Supply support for ST25-TAG-BAG-UI1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power management ICs, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

The ST25 product family delivers NFC/RFID tag ICs optimized for secure, low-power, and high-reliability wireless data exchange-targeting smart packaging, brand protection, maintenance logging, and IoT edge identification.

FAQ

Is ST25-TAG-BAG-UI1 a single component or a collection of tags?

ST25-TAG-BAG-UI1 is a pre-assembled evaluation kit containing five physically separate NFC tags-no PCB assembly or shared circuitry. Each tag integrates a dedicated ST25TV02KC or ST25TN01K IC with its own matched antenna structure, enabling side-by-side RF performance testing without cross-coupling interference.

Can the tamper-detect tag be re-used after activation?

No-the tamper-detect variant uses a one-time-breakable conductive trace integrated into the antenna loop. Once physically disturbed, the electrical discontinuity permanently alters the antenna's resonance and prevents further reliable communication, providing irreversible evidence of unauthorized access per ST25TV02KC's hardware tamper flag.

What is the maximum read range achievable with these tags?

Maximum read range depends on reader field strength and antenna orientation. Under standard ISO/IEC 15693 conditions (100 mW ERP), the ST25TV02KC-based 23 mm smart label achieves up to 1.2 m; the 75 mm × 30 mm tamper label reaches ~1.5 m due to larger aperture, while ST25TN01K variants are limited to ~10 cm per ISO/IEC 14443A constraints.

Are firmware or configuration tools included with the kit?

No standalone firmware or PC tools ship with ST25-TAG-BAG-UI1. Users must employ standard NFC readers (e.g., ST25R3916-based eval boards or commercial Android/iOS NFC scanners) and leverage ST's free ST25 NFC Tap app or ST's NFC Tag Reader Library to configure memory, lock sectors, or verify tamper status via standardized NDEF or proprietary commands.