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DA14531 Hongjia HJ-531IMF


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-531IMF with built-in high-performance antenna comes in the size of 5 x 4.75 x 1.3mm in a LGA25 package.


Size: 5 x 4.75 x 1.3mm

Package: LGA25

GPIOs: 12

Supply voltage: 1.1V-3.6V

TX < 3.5mA; RX < 2.2 mA

Built-in high-performance antenna (External antenna can also be used)

On-board antenna range: 5-10m; External antenna range: 40-80m

Support BLE 5.1, support WeChat and user develop

Built-in 1Mb FLASH, support OTA, Store user data

Operating temperature: -40℃ to +85℃


Tiny medical applications


Smart toys

Smart locks

Remote  Controls

Industrial smart devices

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Name Date Version
DA14531 Hongjia HJ-531IMF Datasheet (855.99 KB) 12/05/2020 1.2

Ordering information

Samples available. Contact your local Dialog sales representative.

Contact Hongjia:,