EM4124- EPC and UHF ICs

Read/Write, EPC Gen2 / ISO 18000-63 Type C Passive RFID IC

General Description

EM4124 is a certified EPCTM Class-1 Generation-2 (Gen2) IC and compliant with ISO/IEC 18000-6:2010 Type C. Each chip is manufactured with a 64-bit Unique Identifier to ensure full traceability.

The EM4124 has 176 bits of non-volatile memory (16 bit PC Word, 96 bit EPC Code, 32 bit Kill Password and 32 bit Access Password), enabling the support of ISO or EPC data structures.

EM4124 achieves a typical read sensitivity of -19 dBm at the chip level, which translates into a typical -21 dBm sensitivity at the tag level for a dipole-like antenna with 2 dBi gain (25us TARI, 250 kHz BLF).


  • Supply chain management
  • Tracking and tracing
  • Container identification
  • Access control
  • Asset control


  • ISO 18000-6C compliant
  • EPC Class-1 Gen-2 certified
  • 96-bit EPC / UII encodings are supported
  • 64-bit manufacturer-programmed & locked Unique Identifier (TID / UID)
  • -19 dBm (-21 dBm) typical IC (tag) read sensitivity
  • 32-bit password-protected Kill command
  • 32-bit password-protected Access command
  • Optional deactivate function to address privacy concerns for retail applications
  • Extended temperature range (–40°C to +85°C)
EM4124 Fact Sheet (531.09 KB)531.09 KB
EM4124 Data Sheet (436.7 KB)436.7 KB
EM4124_44x20A Reference Design (277.29 KB)277.29 KB
Part numberStockMOQPrice
EM4124WS6UAvailable on demand--Order now
EM4124WS6U-201Available on demand--Order now

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