RFID Transponders, Tags

Part Number	Description / PDF	Quantity
MAX66140K-000AA+ Analog Devices, Inc.	RFID TRANSPONDERS, TAGS	4664
MAX66040K-000AA+ Analog Devices, Inc.	TYPE B-COMPLIANT SECURE MEMORY	4850
MAX66040E-000AA+ Analog Devices, Inc.	TYPE B-COMPLIANT SECURE MEMORY	5595
MAX66140E-000AA+ Analog Devices, Inc.	RFID TRANSPONDERS, TAGS	6186

RFID Transponders, Tags

1. Overview

RFID (Radio Frequency Identification) transponders and tags are wireless communication devices that use electromagnetic fields to identify and track objects. They consist of a microchip for data storage and an antenna for signal transmission. Operating in RF/IF (Radio Frequency/Intermediate Frequency) ranges, these devices enable non-contact data exchange between tags and readers. Their importance lies in enabling automation across industries, including supply chain management, access control, and smart manufacturing, by providing real-time asset visibility and data capture.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Passive RFID Tags	No internal power source; powered by reader's electromagnetic field	Warehouse inventory tracking, retail payment systems
Active RFID Tags	Integrated battery for enhanced transmission range	Container tracking in ports, vehicle fleet management
HF (High-Frequency) Tags	13.56 MHz operation; supports NFC protocols	Smart posters, electronic ticketing
UHF (Ultra-High-Frequency) Tags	860-960 MHz range; long read range (up to 12m)	Logistics pallet tracking, livestock identification
IF-RFID Hybrid	Intermediate frequency conversion for improved signal processing	Industrial automation sensors, precision manufacturing

3. Structure and Components

A typical RFID transponder comprises: - Chipset: Contains memory (EEPROM/FRAM) and modulation/demodulation circuits - Antenna: Copper/Aluminum etched traces for electromagnetic wave coupling - Substrate: PET/Flex PCB base material (0.1-0.3mm thickness) - Encapsulation: Epoxy coating or RFID-specific adhesive layers Advanced models integrate sensors (temperature/humidity) and security encryption modules.

4. Key Technical Parameters

Parameter	Importance
Frequency Range (125kHz-900MHz)	Determines read range and material penetration
Memory Capacity (64-8192 bits)	Impacts data storage for EPC codes and sensor data
Read/Write Speed (50-600kbps)	Affects throughput in high-speed conveyor systems
Operating Temperature (-40 C to +85 C)	Critical for industrial environments
Antenna Gain (0-8dBi)	Optimizes signal strength in metal-rich environments

5. Application Fields

Logistics: Parcel sorting systems (DHL, FedEx)
Retail: RFID-enabled point-of-sale terminals (Zara, Amazon Go)
Healthcare: Medical asset tracking (BD Pyxis dispensers)
Manufacturing: Tool lifecycle management (Siemens Industry 4.0 solutions)
Transportation: ETC (Electronic Toll Collection) systems (China's Expressway Network)

6. Leading Manufacturers

Manufacturer	Representative Product
Impinj	Monza R4-P tag chips
Alien Technology	ALN-9828 UHF tags
NXP Semiconductors	ICODE DNA HF tags
STMicroelectronics	ST25DV series NFC tags
RF Micro Devices	Low-power IF transceiver modules

7. Selection Guidelines

Match frequency to environment (LF for metal environments, UHF for long-range)
Choose memory size based on EPC code requirements
Consider enclosure rating (IP67 for outdoor/wet locations)
Evaluate read sensitivity (-10dBm to -25dBm typical range)
Verify compliance with ISO/IEC 18000 standards

8. Industry Trends

Future developments include: - Miniaturization (<0.5mm chip tags for textile integration) - Energy-harvesting passive tags with sensor fusion - Blockchain-integrated RFID for supply chain security - 5G-enabled RFID for real-time location systems (RTLS) - Biodegradable tags for sustainable retail applications