Looking for ultra-compact, low-cost passive RFID tags for your inventory? Our smallest-size RFID tags are engineered to deliver maximum performance in minimal space, making them the perfect solution for tracking tiny assets, tools, retail items, or densely packed inventory.
Built on UHF passive RFID technology, these micro-sized tags operate without batteries, reducing both cost and maintenance. Despite their tiny footprint, they provide excellent read range and data accuracy, enabling real-time tracking of assets across warehouses, retail environments, and high-density storage systems.
Ultra-Compact Design: Among the smallest passive RFID tags on the market — ideal for tagging small or space-limited items like jewelry, electronics, or surgical tools.
Cost-Effective: With unit costs as low as $0.025 to $0.06, these tags offer a budget-friendly way to scale your inventory management system.
Battery-Free (Passive): No maintenance required — powered by the reader signal, making them durable and long-lasting.
Accurate Inventory Control: Enables fast, precise, and bulk scanning of items, improving stock visibility and reducing shrinkage.
Flexible Integration: Can be embedded, stuck, or sewn onto products, offering a wide range of applications across industries.
Physical Specification | ||
|---|---|---|
Item | SRUD12M4 (J41) | |
Antenna size | D12 mm | |
Tag size | D15 mm | |
Thickness | 11–18 mils / 279–463 microns | |
Material | Paper / PP / PET or customized | |
Adhesive | Solvent free permanent acrylic adhesive | |
Color | White, Transparent, etc. | |
Weight | 0.01 g | |
RFID Specification | Air Interface Protocol | ISO/IEC 18000-6C, EPCglobal Class 1 Gen 2 |
Operating Frequency | 860-960 MHz (Global) | |
IC Type | Impinj Monza 4E, Impinj Monza 4D, Impinj Monza 4i, Impinj Monza 4QT | |
Memory | Monza 4QT: EPC-512 bits; User-128 bits; TID-96 bits Monza 4E: EPC-128 bits; User-496 bits; TID-96 bits Monza 4D: EPC-32 bits; User-128 bits; TID-96 bits Monza 4i: EPC-480 bits; User-512 bits; TID-96 bits | |
Write Endurance | 100,000 cycles | |
Data Retention | Up to 20 years | |
Read Range | 1 m to 4 m (Depend on reader and environment) | |
Feature | Bulk identification | |
Environmental Specification | Operating Temperature | -40 °C to +85 °C / -40 °F to +185 °F |
Operating Humidity | 20% to 60% RH | |
Recommended Storage | +25°C / 77°F, 40% RH | |
Bend Diameter | > 1.97” / 50 mm | |
Pressure | < 5N/mm2 | |
Drop Resistance | Per ASTM D5276 | |
Shelf Life | 2 years at +25°C / +77°F, 40% RH | |
ESD Voltag Immunity | ±2 kV peak HBM | |
Other Specification | Package Detail | 3000 pcs/reel, vacuumed in ESD bag or customized |
Core Size | 76.2 mm / 3 in, etc. | |
Delivery Format | On reel for dry inlay, wet inlay, label | |
Samples Policy | For free if stock available | |
Personalization | Pre-print Logo / Barcode / QR / Series number, Pre-encode / encrypt, etc. | |
Final Inspection | 100% tested, defective tags marked | |
Certification | CE Approved, RoHs Approved, etc. | |
Application | Screwdriver, pliers, small wrench tracking, etc. |