10PCS TM1990A F5 iButton Key Tags | Read-Only Touch Memory
10PCS TM1990A F5 iButton Key Tags | Read-Only Touch Memory
LIHTNE TM1990A-F5 iButton Key Tags – 10-Pack
Get reliable, contact-based digital identification with this 10-pack of TM1990A-F5 iButton key tags (compatible with DS1990A-F5). Each tag features a unique, factory-lasered 64-bit registration number — no two are alike — making them ideal for access control, tool management, inventory tracking, and work-in-progress monitoring. Please note: these tags are read-only and cannot be written to.
Key Features
- Unique 64-Bit ID: Factory-lasered and tested registration number (8-bit family code + 48-bit serial number + 8-bit CRC) guarantees absolute traceability across every unit.
- Touch-Based Digital ID: Identifies instantly on momentary contact — no battery, no wireless signal required.
- Fast Read Speed: Data can be read in under 5ms for quick, seamless identification workflows.
- 1-Wire Protocol: Communicates with a bus master via a single digital signal at 16.3k bits per second for simple, low-cost integration.
- Durable Stainless Steel Case: Engraved with the registration number, the rugged enclosure withstands harsh industrial and outdoor environments.
- Standard 16mm Button Form Factor: Self-aligning button shape fits cup-shaped probes for consistent, reliable reads every time.
- Versatile Mounting Options: Attach with self-stick adhesive backing, latch by flange, or lock with a ring pressed onto the rim — fits almost any surface or application.
- Multidrop MicroLAN Support: Works seamlessly in multi-device 1-Wire network configurations.
- Presence Detection: Automatically acknowledges when a reader first applies voltage for instant recognition.
- Wide Operating Range: Functions reliably from 2.8V to 6.0V and across temperatures from -40°C to 85°C.
- UL Certified: Meets UL#913 (4th Edition) – Intrinsically Safe Apparatus, approved under Entity Concept for Class 1, Division 1, Group A, B, C, and D hazardous locations.
Specifications
| Brand | LIHTNE |
| Model | TM1990A-F5-C |
| Compatibility | DS1990A-F5 (Read-Only) |
| Form Factor | 16mm Stainless Steel iButton |
| Operating Voltage | 2.8V – 6.0V |
| Operating Temperature | -40°C to 85°C |
| Communication | 1-Wire Protocol, 16.3k bps |
| Read Speed | < 5ms |
| Package Contents | 10 × TM1990A-F5 iButton Key Tags |
Common Applications
- Access Control Systems
- Work-in-Progress (WIP) Tracking
- Tool Management & Inventory Control
- Industrial Asset Identification
For more information on RFID and contact memory identification standards, visit the NIST Automated Identification Technology resource.
Frequently Asked Questions
Q: Are these TM1990A-F5 iButton tags compatible with DS1990A-F5 readers?
A: Yes, the TM1990A-F5-C is fully compatible with DS1990A-F5 readers and systems. Please note these are read-only tags — they cannot be written to or reprogrammed.
Q: How many tags are included in each order?
A: Each purchase includes 10 TM1990A-F5 iButton key tags, ready to deploy for access control, inventory tracking, or tool management.
Q: How do I attach the iButton tag to surfaces or objects?
A: These iButton tags offer multiple mounting options: use the included self-stick adhesive backing for flat surfaces, latch by the flange, or lock with a ring pressed onto the rim for a more permanent installation.
Q: What is the operating temperature range for these tags?
A: The TM1990A-F5 tags operate reliably from -40°C to 85°C, making them suitable for both indoor and demanding outdoor or industrial environments.