Iridium Core 9523R

Iridium's Internet of Things Connect to a World of IoT Possibilities

Iridium Core 9523R

The Iridium® Core 9523 advanced voice and data satellite transceiver module is small, light and powerful. Its compact footprint and simple connections offer our partners new opportunities to integrate Iridium directly on their printed circuit boards (PCB) and develop products that meet the needs of previously unreached consumer and vertical markets like never before.

Powering new possibilities

From single or multi channel communication platforms for maritime, aviation and land mobile markets to highly capable feature enhanced handheld smart devices and unattended sensors, Iridium Core 9523 delivers cost effective satellite voice and data communications.

Enabling new capabilities

Small but powerful, Iridium Core 9523 supports all Iridium voice and data services. One tiny module delivers the capability needed to develop innovative communications devices, and the technology backbone for embedded applications such as GPS and location-based services (LBS), Wi-Fi and Bluetooth.

Simplifying integration

Iridium Core 9523 features standardized connectors, making integration into innovative new devices and solutions easier than ever. With simplified PCB integration and compact form factor, designers can mount Iridium Core 9523 directly onto their application board - enabling optimization through shared components and power sources.


  • Iridium Voice
  • Iridium Push-to-Talk
  • Circuit Switched Data
  • SMS
  • LBS
  • SBD
  • Mobile originated SBD message size 1960
  • Mobile terminated SBD message size 1890
  • Length 70.44 mm
  • Width 36.04 mm
  • Height (reservoir capacitors) 14.6 mm (screen can) 8.9 mm
  • Weight 32 g
  • Operating Temp. −30ºC to +70ºC
  • Operating Humidity ≤ 75% RH
  • Storage Temp. −40ºC to +85ºC
  • Storage Humidity ≤ 93% RH
RF Interface
  • Frequency Range 1616 MHz to 1626.5 MHz
  • Duplexing Method TDD (Time Domain Duplex)
  • Input/Output Impedance 50 Ω
  • Multiplexing Method TDMA/FDMA
VBAT Power Input Specifications
  • Nominal Voltage +3.7 V
  • Voltage Limits +3.2 V to +6 V
  • Maximal Current 500 mA
VBAT Typical Current at Nominal +3.7 V
  • Standby Current 70 mA
  • Peak Current during Call 300 mA
  • Average Current during Call 110 mA
VBOOST Power Input
  • Nominal Voltage +27 V
  • Maximal Voltage +35 V
  • Maximal Recommended Voltage +32 V
  • Minimal Voltage during Call Transmit Burst +10.5 V
  • Maximal Current 1 A
VBOOST Power Consumption
  • Typical Average Power during Call 2.3 W
  • Maximal Average Power during Call 3.1 W

Reliability Above All sm

In early 2019, Iridium completed the $3 billion Iridium NEXT mission, which completely replaced the first-generation Iridium constellation. With an upgraded network, Iridium is poised now more than ever to meet the growing demand for global communications on land, at sea, and in the skies – far into the future.

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