Product information


Compact NB-IoT Module

BC66 is high-performance, mult-band NB-IoT module with extremely low power consumption. The ultra-compact 17.7mm × 15.8mm × 2.0mm profile makes it perfect choice for size sensitive applications. Designed to be compatible with Quectel GSM/GPRS M66 module in the compact and unified form factor, BC66 provides a flexible and scalable platform for migrating from GSM/GPRS to NB-IoT network. BC66 provides abundant external interfaces and protocol stacks, as well specialized PSM_ENIT for easy module wake-up via the external interrupt.

BC66 adopts surface mounted technology, making it an ideal solution for durable and rugged designs. The low profile and small size of LCC package allow BC66 to be easily embedded into space-constrained applications and provide reliable connectivity with applications.

Due to compact form factor, ultra-low power consumption and extended temperature range, BC66 is a best choice for a wide range of IoT applications, ranging from smart metering, bike sharing, smart wearables, smart parking, smart city, security and asset tracking to home appliances, agricultural and environmental monitoring, etc. Additionally, it is able to provide a complete range of SMS and data transmission services to meet client-side demands.

Key benefits

  • Compact NB-IoT module with ultra-low power consumption
  • Low power supply voltage: 2.1V~3.63V
  • Support high speed movement (80~120km/h)
  • OpenCPU solution minimizes application design
  • Specialized PSM_ENIT for easy module wake-up via external interrupt
  • Build-in eSIM reserved
  • Multi-band and rich external interfaces ensure convenient application
  • Compatible with Quectel GSM/GPRS module, easy for future upgrading
  • Embedded with abundant Internet service protocols

Frequency Bands

  1. B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66


  1. Data Rate:Single-Tone:25.5kbps (DL)/16.7kbps (UL)Multi-Tone:25.5kbps (DL)/62.5kbps (UL)
  3. Firmware Download Methods:UARTDFOTA


  1. Text/PDU Mode

Electrical Specification

  1. Output Power:23dBm±2dB
  2. Sensitivity:-129dBm
  3. Power Consumption (Typ.):3.5μA @PSM0.29mA @Idle Mode (eDRX=81.92s)0.43mA @Idle Mode (DRX=2.56s)110mA @LTE Cat NB1, 23dBm, Single-tone


  1. USIM x1
  2. PSM_EINT x1
  3. UART x3
  4. ADC* x1
  5. RESET x1
  6. PWRKEY x1
  7. NETLIGHT* x1
  8. Antenna x1
  9. SPI x1
  10. I2C x1 (OpenCPU Version Only)
  11. I2S x1 (OpenCPU Version Only)
  12. GPIO: Configurable (OpenCPU Version Only)

General Features

  1. 58 pins
  2. Supply Voltage Range:2.1V~3.63V, 3.3V Typ.(GPIO Voltage Domain: 1.8V)
  3. Temperature Range:-40°C ~ +85°C
  4. Dimension:17.7 x 15.8 x 2.0mm
  5. LCC Package
  6. Weight:1.2g±0.2g
  7. AT Command:3GPP Rel.13/Rel.14* and Quectel Enhanced AT Commands


  1. CRoHS CompliantGCF (Global)IC (Canada)NCC (Taiwan)CE/ATEX*/Vodafone* (Europe)FCC/PTCRB/T-Mobile (North America)JATE*/TELEC*/SofBank* (Japan)KC*/LGU+* (South Korea)RCM/Telstra* (Australia)
* Under Development/Planning
BC66 - Compact NB-IoT Module

Adobe Reader 9 or newer version is required to view following below PDF files. This is a free program available from the Adobe web site. Follow the download directions on the Adobe web site to get your copy of Adobe Reader.

Quectel BC66 NB-IoT Specification V1.7 (1.3 MB)
Quectel LPWA Module Comparison 171106 (627.9 KB)
Quectel BC66 & BC66-NA NB-IoT Module Product Overview V2.2 (3.1 MB)
Quectel BC66 Hardware Design V1.3 (1 MB)
Quectel BC66 & BC66-NA AT Commands Manual V2.1 (1.1 MB)
Quectel BC66 Reference Design V1.1 (352.3 KB)
Quectel BC66-TE-B User Guide V2.0 (1.3 MB)
Quectel BC66 & BC68 & M66 Compatible Design V1.1 (864.8 KB)
Quectel Module Secondary SMT User Guide V2.4 (886.5 KB)
Quectel BC68 Deutsche Telekom Certificate (1.3 MB)
Quectel LPWA Module Product Overview V2.2 (5.2 MB)
Quectel LTE Module Product Overview V1.9 (3.1 MB)
Quectel NB-IoT Module BC66 Product Overview V1.3 (3 MB)
Quectel Products Portfolio Overview V2.5 (7.9 MB)
Quectel BC66 CE(RED) Certificate (193.8 KB)
Quectel BC66 DFOTA User Guide V1.0 (272.6 KB)
Quectel BC66 FCC Certificate (155 KB)
Quectel BC66 GCF Certificate (193 KB)
Quectel BC66 IC(ISED) Certificate (190 KB)
Quectel BC66 JATE Certificate (278.3 KB)
Quectel BC66 LwM2M AT Commands Manual V1.0 (561.9 KB)
Quectel BC66 & BC66-NA MQTT Application Note V2.0 (3.7 MB)
Quectel BC66 Network Searching Scheme Introduction V1.0 (617.9 KB)
Quectel BC66 PTCRB Certificate (153.4 KB)
Quectel BC66 RCM Certificate (236.5 KB)
Quectel BC66 TCP(IP) AT Commands Manual V1.0 (586.2 KB)
Quectel BC66 TELEC Certificate (466.3 KB)
Quectel BC66 & BC66-NA PPP Application Note V1.0 (1.6 MB)
Quectel BC66 & BC66-NA Application Design Note V1.0 (781.1 KB)
Quectel BC66 & BC66-NA-QuecOpen Solution Presentation V1.1 (1.2 MB)
Quectel BC66 & BC66-NA SSL Application Note V1.0 (652.4 KB)
Quectel BC66 & BC66-NA Module Introduction V2.3 (3 MB)

Adobe Reader 9 or newer version is required to view following below PDF files. This is a free program available from the Adobe web site. Follow the download directions on the Adobe web site to get your copy of Adobe Reader.

Quectel BC66 KC Certificate (270.1 KB)
Quectel BC66 NCC(Taiwan) Certificate (184 KB)
BC66NBR01A10 (2.8 MB)
Firmware Update Tool QFlash v4.15 (38.4 MB)

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