Sim900A

Sim900A – Compact Dual‑Band GSM/GPRS Module for Reliable Mobile Connectivity

The Sim900A is a high‑density GSM 900/1800 MHz module designed for embedded applications requiring data, voice, and SMS communication. With full compliance to GSM/EGSM standards, it delivers robust telephony and GPRS services in a compact footprint, ideal for remote sensors, industrial automation, and smart meter deployments. Its integrated power management, low‑power standby, and easy serial‑UART interface enable seamless integration into microcontroller‑based systems without bulky RF front‑ends.

Its dual‑band operation, 2‑Mbit flash buffer, and support for GPRS Category 2 provide a reliable data rate up to 85 kbps, while built‑in error handling and packet‑level diagnostics ensure dependable performance in diverse environmental conditions.

• Dual‑Band GSM: Operates on 900 MHz and 1800 MHz with full GSM/EGSM support.
• GPRS Category 2: 38.4 kbps max download, 19.2 kbps max upload (typical 115 kbps link).
• Low‑Power Power Mode: Advanced sleeping mode down to 50 µA, ideal for battery‑powered IoT solutions.
• Common Use Case: Remote telemetry stations, asset tracking, and industrial control systems that require autonomous mobile connectivity.