RFID Transponders, Tags

Image Part Number Description / PDF Quantity Rfq
28445

28445

Parallax, Inc.

RFID TAG 125KHZ COIN

159

28441

28441

Parallax, Inc.

RFID TAG R/W 125KHZ CARD

13

28142

28142

Parallax, Inc.

RFID TAG READ ONLY 125KHZ COIN

77

32397

32397

Parallax, Inc.

RFID TAG READ ONLY 125KHZ COIN

2154

28141

28141

Parallax, Inc.

RFID TAG READ ONLY 125KHZ CARD

422

28161

28161

Parallax, Inc.

RFID TAG RD ONLY 125KHZ KEY FOB

501

28448

28448

Parallax, Inc.

RFID TAG 125KHZ COIN

42

28449

28449

Parallax, Inc.

RFID TAG 125KHZ COIN

33

32398

32398

Parallax, Inc.

RFID TAG R/W 125KHZ COIN

0

28149

28149

Parallax, Inc.

RFID TAG READ ONLY 125KHZ ENCAP

0

28148

28148

Parallax, Inc.

RFID TAG READ ONLY 125KHZ COIN

0

28446

28446

Parallax, Inc.

RFID TAG 125KHZ NAIL

0

28147

28147

Parallax, Inc.

RFID TAG RD ONLY 125KHZ KEY FOB

0

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

TypeFunctional FeaturesApplication Examples
Passive RFID TagsNo internal power source; powered by reader's electromagnetic fieldWarehouse inventory tracking, retail payment systems
Active RFID TagsIntegrated battery for enhanced transmission rangeContainer tracking in ports, vehicle fleet management
HF (High-Frequency) Tags13.56 MHz operation; supports NFC protocolsSmart posters, electronic ticketing
UHF (Ultra-High-Frequency) Tags860-960 MHz range; long read range (up to 12m)Logistics pallet tracking, livestock identification
IF-RFID HybridIntermediate frequency conversion for improved signal processingIndustrial 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

ParameterImportance
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

ManufacturerRepresentative Product
ImpinjMonza R4-P tag chips
Alien TechnologyALN-9828 UHF tags
NXP SemiconductorsICODE DNA HF tags
STMicroelectronicsST25DV series NFC tags
RF Micro DevicesLow-power IF transceiver modules

7. Selection Guidelines

  1. Match frequency to environment (LF for metal environments, UHF for long-range)
  2. Choose memory size based on EPC code requirements
  3. Consider enclosure rating (IP67 for outdoor/wet locations)
  4. Evaluate read sensitivity (-10dBm to -25dBm typical range)
  5. 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

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