Product information


IoT/M2M-optimized Cat.4 LTE Module

Quectel EC25 is a series of LTE category 4 module optimized specially for M2M and IoT applications. Adopting the 3GPP Rel. 11 LTE technology, it delivers 150Mbit/s downlink and 50Mbit/s uplink data rates. Designed in the compact and unified form factor, EC25 is compatible with Quectel UMTS/HSPA+ UC20 module and multi-mode LTE EC20/EC21 module, which allows for flexible migration among them in design and manufacturing.

EC25 contains 6 variants: EC25-V, EC25-J, EC25-A, EC25-AU, EC25-AUT and EC25-E. This makes it backward-compatible with existing EDGE and GSM/GPRS networks, ensuring that it can be connected even in remote areas devoid of 4G or 3G coverage.

EC25 supports Qualcomm® IZat™ location technology Gen8C Lite (GPS, GLONASS, BeiDou, Galileo and QZSS). The integrated GNSS greatly simplifies product design, and provides quicker, more accurate and more dependable positioning.

A rich set of Internet protocols, industry-standard interfaces and abundant functionalities (USB drivers for Windows XP, Windows Vista, Windows 7, Windows 8/8.1, Windows 10, Linux, Android/eCall*) extend the applicability of the module to a wide range of M2M and IoT applications such as industrial router, industrial PDA, rugged tablet PC, video surveillance, and digital signage.

Key Benefits

  • LTE Cat. 4 module optimized for M2M and IoT applications
  • Worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE coverage
  • Multi-constellation GNSS receiver available for applications requiring fast and accurate fixes in any environment
  • Feature refinements: supports DFOTA*, eCall*, QuecLocator and DTMF
  • MIMO technology meets demands for data rate and link reliability in modem wireless communication systems

General Characteristics

  1. Frequency BandsEC25-V:LTE FDD: B4/B13EC25-J:LTE FDD: B1/B3/B8/B18/B19/B26LTE TDD: B41WCDMA: B1/B6/B8/B19EC25-A:LTE FDD: B2/B4/B12WCDMA: B2/B4/B5EC25-AU:LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28LTE TDD: B40WCDMA: B1/B2/B5/B8GSM: B2/B3/B5/B8EC25-AUT:LTE FDD: B1/B3/B5/B7/B28WCDMA: B1/B5EC25-E:LTE FDD: B1/B3/B5/B7/B8/B20LTE TDD: B38/B40/B41WCDMA: B1/B5/B8GSM: B3/B8
  2. LTE Version3GPP E-UTRA Release 11
  3. Bandwidth1.4/3/5/10/15/20MHz
  4. AntennaSupports Rx-diversity
  5. Supply Voltage Range3.3V~4.3V, 3.8V Typ.
  6. Operation Temperature-40 °C ~ +85 °C
  7. Size L/W/H32.0 x 29.0 x 2.4mm
  8. PackageLCC
  9. WeightApprox. 4.9g
  10. Control via AT commands3GPP TS27.007 and enhanced AT Commands


  1. DataLTE:LTE-FDD: Max 150Mbps (DL) Max 50Mbps (UL)
    LTE-TDD Max 130Mbps (DL) Max 35Mbps (UL)
    DC-HSPA+:Max 42Mbps (DL) Max 5.76Mbps (UL)UMTS:Max 384Kbps (DL) Max 384Kbps (UL)TD-SCDMA:Max 4.2Mbps (DL) Max 2.2Mbps (UL)EDGE:Max 236.8Kbps (DL) Max 236.8Kbps (UL)GPRS:Max 85.6Kbps (DL) Max 85.6Kbps (UL)Speech Codec Modes:HR, FR, EFR, AMR, AMR-WB
  2. VoiceEcho Arithmetic:Echo CancellationNoise Reduction
  3. eCallAccident, Emergency Services
  4. VoLTEDigital Audio and VoLTE (Voice over LTE) (Optional)

Special Features

  1. DriversUSB Serial:Windows XP, Windows Vista, Windows 7, Windows 8/8.1, Windows 10, Linux 2.6 or later, Android 4.0/4.2/4.4/5.0/5.1/6.0RIL:Android 4.0/4.2/4.4/5.0/5.1/6.0NDIS:Windows XP, Windows Vista, Windows 7, Windows 8/8.1ECM:Linux 2.6 or laterGobinet:Linux 2.6 or laterLinux qmi wwan:Linux 3.4 or later
  2. DFOTA*:Firmware updated via the air
  3. BT4.0*/WiFi:Optional

Electrical Characteristics

  1. Output PowerClass 3 (23dBm±2dB) for LTE FDDClass 3 (23dBm±2dB) for LTE TDDClass 3 (24dBm +1/-3dB) for TD-SCDMAClass 3 (24dBm +1/-3dB) for UMTSClass E2 (27dBm ±3dB) for EDGE 850/900MHzClass E2 (26dBm +3/-4dB) for EDGE 1800/1900MHzClass 4 (33dBm ±2dB) for GSM 850/900MHzClass 1 (30dBm ±2dB) for GSM 1800/1900MHz
  2. Consumption20uA @Power off3mA @Sleep, Typ.22mA @Idle
  3. SensitivityLTE B1: -101.5dBm (10M)LTE B2: -101dBm (10M)LTE B3: -101.5dBm (10M)LTE B4: -101dBm (10M)LTE B5: -101dBm (10M)LTE B7: -99.5dBm (10M)LTE B8: -101dBm (10M)LTE B12: -101dBm (10M)LTE B13: -100dBm (10M)LTE B20: -102.5dB (10M)LTE B28: -102dBm (10M)UMTS B1: -110dBmUMTS B2: -110dBmUMTS B4: -110dBmUMTS B5: -110.5dBmUMTS B8: -110.5dBmGSM: -109dBmDCS: -109dBm


  1. USB 2.0 DeviceHigh Speed, 480Mbps
  2. PCM×1, Digital Audio through PCM Interface (Optional)
  3. USIM1.8V/3V
  5. UART×1, UART
  6. RESET
  8. AntennaPads for Primary, Rx-diversity and GNSS
  9. ADC×2


  1. ApprovalFCC/ CE/ PTCRB*/ AT&T*/GCF*/ Verizon*/ RCM*/ATE&TELEC*
  • * Under development
    EC25 - IoT/M2M-optimized Cat.4  LTE Module

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