Ceramic tag
Industrial & harsh environment
What is it?
Ceramic RFID tags use a ceramic substrate instead of plastic, giving them extreme temperature resistance, chemical inertness, and mechanical durability. They are designed for autoclave sterilisation, engine compartments, industrial furnaces, and other environments where plastic and epoxy tags would fail. The ceramic body also provides excellent on-metal performance.
How it works
The RFID chip is bonded to an antenna on or within a ceramic substrate (typically alumina or LTCC – low-temperature co-fired ceramic). The ceramic body acts as both the protective housing and the dielectric spacer for on-metal operation. Some designs embed the antenna within the ceramic layers during firing, creating a monolithic structure with no exposed conductors.
Use cases
- Autoclave sterilisation tracking (medical instruments)
- High-temperature manufacturing
- Chemical processing equipment
- Aerospace component tracking
- Firearm identification
- Nuclear facility asset tracking
Pros
- Extreme temperature resistance (up to 300°C+)
- Chemically inert – resists acids, solvents, and cleaning agents
- Excellent on-metal performance
- Very long lifespan
- Small form factor achievable
Cons
- Brittle – ceramic cracks under sharp impact
- Expensive ($5–$25+ per unit)
- Heavier than polymer-based tags
- Limited antenna design flexibility
Specifications
| Power type | Passive – powered by reader signal |
|---|---|
| Frequency | UHF (860–960 MHz) |
| Read range | 1–6 m |
| Lifespan | 25+ years |
| Price range | $5–$25+ per unit |
| Environmental rating | IP68; -40°C to +300°C; chemically inert |