🔹 SIM7020C 4G NB-IoT Module with Antenna – Narrowband IoT Communication Board
The SIM7020C is a compact NB-IoT (Narrowband Internet of Things) module based on the SIM7020C chipset, designed specifically for the Chinese market and networks operating on LTE bands. It enables low-power, wide-area wireless communication for IoT applications, offering excellent coverage in challenging environments. This package includes the module with an antenna for immediate deployment.
✅ Specifications:
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Module Base: SIM7020C NB-IoT Module
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Network Type: NB-IoT (Narrowband IoT) – 4G LTE Category NB1
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Frequency Bands (SIM7020C):
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B1 / B3 / B5 / B8 (varies by region – check local carrier support)
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Data Rate:
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Downlink: Up to 127 Kbps
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Uplink: Up to 158 Kbps
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Interface: UART (Serial) AT commands
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Power Supply: 3.3V – 4.2V DC (typical 3.8V)
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Power Consumption:
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Sleep Mode: < 10µA
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Idle Mode: < 1mA
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Active Mode: ~50mA – 200mA (varies with signal strength)
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SIM Card: Micro SIM (2FF) / Nano SIM (depending on board design)
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Antenna: Included (external antenna with IPEX/U.FL connector)
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Network Protocol: IPv4/IPv6, TCP/UDP, HTTP/HTTPS, CoAP, LwM2M, MQTT (via AT commands or firmware)
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Operating Temperature: -40°C to +85°C
📦 Package Includes:
✔️ 1 x SIM7020C NB-IoT Module (breakout board)
✔️ 1 x External NB-IoT Antenna (IPEX/U.FL connector)
✔️ Pin headers (may require soldering)
📦 Features:
✔️ Ultra-low power consumption for battery-powered devices
✔️ Deep coverage (20dB+ better than GSM)
✔️ Designed for Chinese network bands (B1/B3/B5/B8)
✔️ AT command interface for easy integration
✔️ Compact design for space-constrained applications
✔️ Support for multiple IoT protocols
✔️ Embedded network stack
✔️ Compatible with Arduino, ESP32, STM32, and other microcontrollers
✔️ Antenna included for immediate setup
📦 Applications:
✔️ Smart metering (water, gas, electricity)
✔️ Asset tracking and logistics
✔️ Environmental monitoring (air quality, weather stations)
✔️ Smart agriculture (soil monitoring, livestock tracking)
✔️ Smart parking sensors
✔️ Industrial IoT (IIoT) remote monitoring
✔️ Smart city infrastructure
✔️ Remote alarm and security systems
⚠️ Important Notes:
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NB-IoT network required. SIM7020C requires an active NB-IoT network operating on supported bands and a compatible NB-IoT SIM card. Verify coverage in your area before purchase.
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Chinese market variant. SIM7020C is optimized for Chinese networks. For other regions, verify band compatibility.
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Power supply. Ensure stable 3.8V power supply capable of handling peak currents (~200mA).
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AT commands. Controlled via standard AT commands over UART.
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Firmware. May require firmware updates for specific network operators.
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Not backward compatible with 2G/3G/4G LTE networks. NB-IoT only.
























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