DA14531 Hongjia HJ-131IMH

DA14531 Hongjia HJ-131IMH

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Tangshan HongJia Electronic Technology Co., Ltd. has developed a ultra-small, ultra-low power Bluetooth 5.1 SIP module with Dialog’s SmartBond DA14531 TINY, the world’s smallest and most power-efficient Bluetooth 5.1 SoC. The HJ-131IMH with built-in high-performance antenna comes in the size of 4 x 4 x 1.3mm in a LGA17 package, making it ideal for wearables and medical devices that require ultra-small footprint.


  • Size: 4 x 4 x 1.3mm
  • Built-in high-performance antenna (External antenna can also be used)
  • Package: LGA17
  • GPIOs: 6
  • Supply voltage: 1.1V-3.6V
  • TX < 3.5mA; RX < 2.2 mA
  • On-board antenna range: 5-10m; External antenna range: 40-80m
  • Support BLE 5.1, support WeChat and user develop
  • Built-in 4kB EEPROM
  • External memory support for Flash for user software and SUOTA
  • Operating temperature: -40℃ to +85℃


  • Tiny medical applications
  • Beacons
  • Smart toys
  • Smart locks
  • Remote controls
  • Industrial smart devices

Ordering information


Date Version
DA14531 Honjia HJ-131IMH datasheet 12/05/2020 1.7
SDK User Manual
Date Version
DA14531 Honjia HJ-131IMH datasheet 02/07/2020 1.0 Beta

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