STMicroelectronics ST25-TAG-BAG-AB

Overview

ST25-TAG-BAG-AB from STMicroelectronics is a ready-to-use evaluation kit containing six physical NFC tags based on ST25TV512C (512-bit, ISO/IEC 15693) and ST25TV02KC (2-Kbit, ISO/IEC 15693) NFC Forum Type 5 tag ICs. Each tag features a distinct antenna design-wet inlay, smart label, molding tag, and tamper-detect variant-with diameters or dimensions ranging from 7.5 mm × 7.5 mm to 50.8 mm × 50.8 mm, enabling range and form-factor validation for industrial asset tagging and anti-tampering use cases.

For engineers reviewing the ST25-TAG-BAG-AB datasheet, ST25-TAG-BAG-AB application, ST25-TAG-BAG-AB contents, or ST25-TAG-BAG-AB equivalent, this kit supports rapid prototyping of long-range NFC deployments requiring memory differentiation (512-bit vs. 2-Kbit), mechanical integration flexibility, and tamper-event detection capability without custom antenna design.

Technical Context

The ST25-TAG-BAG-AB comprises discrete NFC tag units-not a single IC or board-but delivers pre-integrated, factory-tested combinations of ST25TV-series ICs and tuned antennas. Each tag operates per ISO/IEC 15693 (13.56 MHz) with field-powered operation, no battery required, and supports password-protected memory access and UID readout.

All included tags implement ST's proprietary tamper-detect feature (on one unit), dynamic lock bits, and ESD protection up to ±8 kV HBM. The ST25TV512C offers 512-bit user memory with 4-byte UID; the ST25TV02KC provides 2-Kbit user memory, configurable lock zones, and extended temperature range (−40 °C to +85 °C).

Key Specifications

Availability

ST25-TAG-BAG-AB is available at Aetrix Electronics and suitable for NFC-based industrial asset tracking, secure product authentication, tamper-evident packaging validation, and RFID system interoperability testing requiring stable component supply and pre-characterized antenna performance.

Supply support for ST25-TAG-BAG-AB 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 ICs, and secure NFC solutions for industrial, automotive, and consumer applications.

The ST25T product family delivers certified NFC Forum Type 4 and Type 5 tags optimized for long-range, high-reliability identification and data logging in harsh environments-designed specifically for maintenance-free, batteryless deployment in logistics, medical devices, and smart packaging.

FAQ

Is ST25-TAG-BAG-AB a development board or an evaluation kit?

ST25-TAG-BAG-AB is an evaluation kit-not a board or PCB-based tool. It contains six physically separate, pre-assembled NFC tags with integrated antennas and ST25TV-series ICs. No soldering, programming, or host interface is required; users interact via standard NFC readers supporting ISO/IEC 15693.

Can the tamper-detect tag be reset after triggering?

No. The tamper-detect functionality on the 42 mm × 26.5 mm ST25TV02KC tag is irreversible: once the tamper flag is set (e.g., by peeling or cutting), the memory bit cannot be cleared. This ensures evidentiary integrity for anti-tampering applications such as sealed medical device packaging or firmware-secured hardware enclosures.

What reader compatibility does ST25-TAG-BAG-AB require?

ST25-TAG-BAG-AB requires ISO/IEC 15693–compliant NFC readers-such as ST25R3916B-based modules, ACS ACR1255U-J1, or Nordic Semiconductor nRF52833 DK with appropriate firmware. It is not compatible with standard smartphone NFC (which defaults to ISO/IEC 14443); dedicated long-range readers are mandatory.

Are the antennas in ST25-TAG-BAG-AB customizable or replaceable?

No. All six tags are factory-assembled with fixed antenna geometries and material stacks (e.g., PET substrate, aluminum etch, conductive ink). Antennas are not modular or user-replaceable; the kit is intended for out-of-box evaluation-not antenna tuning or rework. Custom antenna designs require separate ST25TV IC purchase and RF layout expertise.