B SoM LTE CAT-M1 (NorAm)


B402 Type: B402
$ 54.37
In stock

If you are looking to purchase in bulk, visit our wholesale store


Disclaimer: This hardware SKU will be discontinued due to lack of availability of critical components driven by the ongoing global silicon shortage crisis. For more details, visit our product discontinuation notification.

It is recommended that buyers of this impacted SKU migrate to our new Supply Secure B404X LTE SoM. This migration will require minimal hardware and firmware changes, as this new SKU is API, footprint, and electrically compatible with existing B SoM designs.

For more details, review our Supply Secure blog post.


Buy this hardware and start building with Particle's Free Plan which includes support for up to 100 devices, cellular data, and fully-featured platform access with no time limit.


The B SoM System-on-a-Module (SoM) can act as a standalone cellular endpoint. It is based on the Nordic nRF52840 micro-controller.

The B SoM is designed to be integrated into your circuit board design, plugging a M.2 NGFF connector on your board, allowing the module to be changed or upgraded easily.

The B402 module supports LTE M1 connectivity.


    • u-blox SARA-R410-02B LTE modem (Boron LTE)
    • LTE CAT M1 module with global hardware support (MVNO support for US only)
    • 3GPP Release 13 LTE Cat M1
    • Cat M1 bands: 2, 3, 4, 5, 8, 12, 13, 20, 28
    • Nordic Semiconductor nRF52840 SoC
      • ARM Cortex-M4F 32-bit processor @ 64MHz
      • 1MB flash, 256KB RAM
      • IEEE 802.15.4-2006: 250 Kbps
      • Bluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 Kbps
      • Supports DSP instructions, HW accelerated Floating Point Unit (FPU) calculations
      • ARM TrustZone CryptoCell-310 Cryptographic and security module
      • Up to +8 dBm TX power (down to -20 dBm in 4 dB steps)
      • NFC-A tag
    • On-module additional 4MB SPI flash
    • 24 mixed signal GPIO (8 x Analog, 4 x PWM), UART, I2C, SPI
    • USB 2.0 full speed (12 Mbps)
    • JTAG (SWD) pins
    • RGB status pins for LED
    • Reset and Mode pins for buttons
    • On-module MFF2 Particle SIM
    • Two on-module U.FL connectors for external antennas
    • M.2 interface
    • FCC and PTCRB certified
    • RoHS compliant (lead-free)


    • B402 SoM
    • Cellular antenna
    • Bluetooth antenna
    • MFF2 SMD Particle SIM

    The B402 SoM includes a MFF2 SMD Particle SIM. It can only be used in the United States, Canada, and Mexico at this time. A list of supported carriers can be found here. It cannot be used with a 3rd-party SIM card.

    The optional SoM evaluation board pictured below is not included and must be purchased separately if desired.

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