ST25T Series
ST25T Series Card
ST25T Series Card
Product Details
STMicroelectronics ST25T Series: European-Designed RFID Silicon for Protected, Business-Critical Implementations
Select your architectural edge. Whether you are powering omnichannel consumer interaction with the ST25TA or safeguarding established municipal infrastructure with the ST25TB, our premium OEM manufacturing encloses ST's validated silicon into rugged, field-ready credentials.

Product Description: Two Purpose-Built Architectures for Different Organizational Objectives
The ST25T series from STMicroelectronics delivers highly targeted High-Frequency (13.56 MHz) solutions. Instead of imposing a single protocol on your project, we offer two separate architectural routes, enabling your IT and sourcing teams to match the precise hardware with your software landscape.
Option A: ST25TA (The Omnichannel & Brand Protection Envoy): Constructed on the widely adopted ISO/IEC 14443 Type A standard and fully validated as an NFC Forum Type 4 Tag. This chip is a secure digital solution built for dynamic consumer engagement, high-end brand verification, and intelligent packaging. It provides advanced NDEF (NFC Data Exchange Format) capabilities and passcode safeguarding, making it the ideal connector between physical goods and protected digital experiences via standard smartphones.
Option B: ST25TB (The Established & Business-Critical Type B Answer): Built solely on the sturdy ISO/IEC 14443 Type B standard. Type B technology is extensively specified for traditional transit and access systems owing to its consistent power delivery and organized polling behavior. The ST25TB is the trustworthy option for municipal transit networks, secure corporate entry procedures, and identity systems developed natively for Type B architecture to guarantee extremely stable, high-security performance.

Technical Deep-Dive: Constructed for Protection and Longevity
Driven by genuine STMicroelectronics® silicon, these chips deliver top-tier data persistence and cryptographic adaptability.
ST25TA (ISO 14443 Type A / NFC Type 4):
Sophisticated Memory Safeguarding: Incorporates a 128-bit passcode mechanism for both read and write operations. You can permanently lock product authenticity information while permitting consumer-oriented marketing links to be securely modified.
TruST25™ Silicon Verification: Selected models incorporate a TruST25™ digital signature, delivering cryptographic evidence of authentic ST silicon to effectively deter tag duplication and counterfeiting in the luxury goods segment.
Selective Tap Counter: Certain premium ST25TA models feature an integrated read counter, enabling brands to monitor how many times a product tag has been tapped, supplying invaluable data for consumer interaction metrics.
ST25TB (ISO 14443 Type B):
Deterministic Slot-Based Collision Avoidance Logic: The Type B protocol employs a robust deterministic slot-based anti-collision method. This guarantees that even in settings with intense RF interference or multiple closely-positioned tags, the reader reliably isolates and authenticates the credential.
High-Cycle EEPROM: Designed for high-usage environments, with strong read/write cycle durability and a 10-year data retention period at 25°C, providing long-term utility for municipal or corporate implementations.

Applications: Focused Deployment for Maximum Return on Investment
Our sophisticated encapsulation technology ensures these particular chips thrive in their entirely different operational areas.
Luxury Brand Verification & Intelligent Retail (Driven by ST25TA): Discreetly embedded into premium leather goods, clothing, or high-end cosmetics packaging. Consumers merely tap the product with their NFC smartphone to confirm the legitimacy of the silicon chip via the TruST25™ signature and access exclusive brand material, without needing any app downloads.
Interactive Smart Posters & Agile Marketing (Driven by ST25TA): Used as ultra-thin labels behind retail displays or transit shelter posters. Large-capacity NDEF storage holds complex vCards, Wi-Fi setup credentials, or interchangeable promotional URLs for effortless consumer engagement.
Secure Municipal Transit Networks (Driven by ST25TB): Fabricated into millions of robust PVC transit cards or heavy-duty paper tickets for cities and regional transport authorities running legacy gate systems constructed for Type B protocol.
Corporate & Government Building Access (Driven by ST25TB): Integrated into high-end employee ID badges. Its steady power harvesting and dependable polling render ST25TB appropriate for secure government buildings or heavy industrial plants where RF environments are dense and organized.

Tailored Personalization: Your Brand, Your Sustainability Objectives
As a leading OEM manufacturer, we convert a standard credential into a high-quality extension of your client's brand, aligning with international sustainability requirements.
Premium Surfaces: High-resolution offset printing, spot UV coating, metallic foil stamping, and anti-counterfeiting micro-text or holographic overlays.
Digital Pre-Customization: We perform secure data injection (key loading) within our accredited facilities so the cards arrive “ready-to-use” for your infrastructure.
Precision Type B Antenna Manufacturing: The ISO 14443 Type B protocol demands precise antenna tuning for optimal power delivery. Our engineers tailor-design and fabricate high-conductivity copper and aluminum antennas specifically calibrated to pair with the ST25TB chip within your exact required dimensions.
The Innovation – “The Eco-Secure Credential Line”: To assist European and North American clients in meeting their ESG commitments, we offer fabrication using 100% Recycled PVC (rPVC), Biodegradable PLA, or FSC-Certified Wood Veneer. Each eco-friendly batch comes with an auditable sustainability certificate for your clients’ annual reports.
Form Factor Versatility: Offered in standard CR80 cards, ultra-durable epoxy key fobs, or wearable silicone wristbands.

OEM Production & Quality Assurance: Reducing Risk in Your Supply Chain
For extensive B2B sourcing, dependability is equally vital as the technology. We supply enterprise-grade manufacturing efficiency designed for system integrators. We also recognize that for B2B purchasers, ROI equals Quality divided by Lead Time.
Intelligent Batch Production: Our facility uses automated AOI (Automated Optical Inspection) to guarantee every card is visually flawless.
The “Zero-Defect” Pledge: 100% electrical verification of every chip and antenna connection before lamination. We supply a certified test report with every bulk shipment.
Supply Chain Continuity: With a monthly capacity exceeding 5 million units, we provide “Buffer Stock” programs for long-term collaborators to protect against worldwide chip shortages.
ISO 9001:2015 & RoHS Conformity: Rigorously adhering to ISO/IEC 14443 protocols, our facilities are regularly audited for security and quality management.
| Dimensions | 85.5*54mm (customizable size and shape) |
| Protocol | ISO14443A |
| Chips | ST25TA/ST25TB |
| Frequency | 13.56MHZ |
| Materials | PVC, PLA, PETG, PET, TESLIN, wood, bamboo, RPVC, paper, etc |
| Card Surface | Glossy, matte, frosted, epoxy (single or double sided), brushed (single or double sided) |
| Printing | Silk screen printing, offset printing, digital printing, anti-counterfeiting printing, UV printing |
| Coding process | Inkjet code, laser code, flat code, embossed code, bar code, QR code |
| Read/write distance | 2.5-8cm |
| Data retention | 10 years |
| Erase/write times | 100,000 times |


