NFC Card – Topaz 512 (White PVC)
This NFC card integrates the Topaz 512 chip into a standard white PVC body, delivering reliable NFC Forum Type 1 performance for close-range identification and data exchange. Designed for commercial and industrial deployments, the card supports ISO/IEC 18092, ISO/IEC 21481, and ISO/IEC 14443 Type A, making it compatible with most NFC-enabled readers and mobile devices. System integrators, access control contractors, event management companies, and loyalty program operators choose this card when they need a cost-effective, field-proven NFC credential with sufficient memory for secure data storage and authentication workflows.
Product Advantages
With 512 bytes of user memory and a 7-byte UID, the Topaz 512 chip provides enough capacity to store digital signatures, coupon identifiers, ticket tokens, and identity credentials. The chip supports partial compatibility with NFC Tools for Android, enabling rapid prototyping and field testing. For project managers and technical buyers, the card offers a predictable read range of up to 10 cm at 13.56 MHz, ensuring consistent performance across turnstiles, kiosks, and handheld readers. The write endurance of 10,000 cycles and data retention of five years make it suitable for medium-term deployments where cards are re-issued or updated periodically.
Key Features
- NFC Forum Type 1 Compliance – Works with ISO/IEC 18092, ISO/IEC 21481, and ISO/IEC 14443 Type A infrastructures.
- 512 Bytes Memory – Ample space for digital signatures, authentication tokens, and application-specific data.
- 7-Byte Unique Identifier – Factory-programmed UID supports anti-collision and secure identification.
- 10 cm Read Range – Reliable close-proximity performance for access, ticketing, and payment scenarios.
- 10,000 Write Cycles – Suitable for applications that require periodic data rewrites.
- 5-Year Data Retention – Stable memory retention under normal operating conditions.
- Durable White PVC Construction – Standard CR80 format, printable surface for branding or custom graphics.
- Operating Temperature –25 °C to 50 °C – Designed for indoor and sheltered outdoor environments.
- Partial NFC Tools for Android Compatibility – Enables basic read/write testing during development and integration.
Technical Specifications
| Product Reference | DO-TOPAZ-512-CR80WH |
| Product Type | NFC Card |
| Chip | Topaz 512 |
| Standard Compliance | ISO/IEC 18092, ISO/IEC 21481, ISO/IEC 14443 Type A, NFC Forum Type 1 |
| Total Memory | 512 bytes |
| UID Size | 7 bytes |
| Encryption | Not supported |
| Password Protection | Not supported |
| Data Retention | 5 years |
| Write Endurance | 10,000 cycles |
| Operating Frequency | 13.56 MHz |
| Operating Distance | Up to 10 cm |
| Operating Temperature | –25 °C to 50 °C |
| Shape | Rounded rectangle |
| Color | White |
| Materials | PVC |
| Dimensions | 85.5 mm x 54 mm |
| Weight | 6 g |
| On-Metal Operation | No |
Industrial Applications
- Access Management – Used by system integrators and security contractors for employee ID badges, visitor passes, and temporary credentials. The 512-byte memory supports stored authentication data and digital signatures.
- Event Ticketing – Deployed at concerts, conferences, and sports venues for contactless ticket validation. The NFC Forum Type 1 compliance ensures compatibility with standard ticketing readers and mobile check-in apps.
- Mobile Money & Electronic Coupons – Suitable for closed-loop payment and coupon programs where small data payloads need to be written and read reliably in high-throughput environments.
- Electronic Tickets & Loyalty Cards – Used by retailers and transit operators for stored-value cards, punch cards, and membership credentials that require periodic updates.
- Gaming & Identity – Integrated into gaming tokens, event wristbands, and temporary identity badges where fast read speed and ease of deployment are priorities.
OEM / ODM Manufacturing Support
do rfid reader manufacturer provides flexible OEM and ODM services for this NFC card, allowing procurement teams to receive finished credentials that match their brand and application requirements. OEM customization includes logo printing, serial number encoding, barcode or QR code addition, and custom UID ranges for closed-system deployments. ODM clients can request alternative PVC formulations, different card thicknesses, or specific antenna tuning for particular reader environments. All customization work is handled in-house, giving project managers a single point of contact from design through delivery.
Factory Production Advantages
Our manufacturing facility operates with stable production capacity, processing both small-batch qualification orders and large-scale deployments exceeding 100,000 units. Each production run undergoes visual inspection, antenna tuning verification, and memory read/write validation to ensure batch consistency. For distributors and wholesalers, we maintain buffer stock of white PVC cards with the Topaz 512 chip, reducing lead time for urgent orders. The production line supports fast changeover for different encoding and printing requirements, enabling efficient handling of multiple projects in parallel.
Bulk Supply & Project Deployment Support
Volume buyers benefit from tiered pricing that scales with order quantity, as shown in the price grid above. For project contractors and system integrators deploying across multiple sites, we offer staged delivery schedules, consolidated shipping, and technical documentation including chip datasheets, antenna tuning guidelines, and reader compatibility notes. Long-term cooperation agreements can include fixed pricing windows, guaranteed supply allocation, and priority production slots for recurring orders. Whether your project requires 500 cards for a pilot program or 50,000 cards for a national rollout, the factory is structured to support consistent quality and on-time delivery.
FAQ
Q: What reader infrastructure is compatible with this card?
This card works with any NFC reader that supports NFC Forum Type 1 and ISO/IEC 14443 Type A, including standard contactless smart card readers, NFC-enabled smartphones, and embedded reader modules used in access control panels.
Q: Can I print logos or artwork on these cards?
Yes. The white PVC surface accepts offset, silk-screen, and digital printing. OEM customers can provide artwork files, and we handle printing as part of the production process.
Q: What is the minimum order quantity for custom-printed cards?
Custom printing and encoding typically have a minimum of 100 units, while blank white cards can be ordered in quantities as low as 10 units.
Q: How should I store these cards before deployment?
Store cards in a cool, dry environment away from direct sunlight and metal surfaces. Operating temperature range is –25 °C to 50 °C, but long-term storage between 10 °C and 30 °C is recommended to preserve PVC flatness.
Q: Do you support encoding of UID or user memory before shipment?
Yes. We support pre-encoding of the UID lock, user memory writes, and signature data injection as part of the production process. Contact the sales team with your data format and encoding requirements.
Q: Can this card be used in metal-mount or metal-proximate environments?
No. The card is not designed for on-metal operation. For metal surface mounting, please refer to our on-metal NFC tag series with ferrite shielding.
Q: How does the 512-byte memory limit affect application design?
The memory is sufficient for small authentication tokens, coupon IDs, ticket identifiers, and basic credential data. For applications requiring larger payloads, consider our NTAG or ICODE product lines with higher memory capacities.
Q: What export documentation do you provide for international shipments?
We provide commercial invoices, packing lists, and material safety data sheets for PVC products. Additional certificates of origin or compliance documentation can be arranged based on destination country requirements.
For OEM customization, volume pricing, or project consultation, contact us at info@dorfidreader.com.