SIM900A Module

  • Shipping Weight: 0.05Kgs
  • 8 Units in Stock

SIM900A SIMCom presents an ultra compact and reliable wireless module. The SIM900A is a complete Dual-band GSM/GPRS module in a SMT type which is designed specially for Chinese market, allowing you to benefit from small dimensions and cost-effective solutions. Featuring an industry-standard interface, the SIM900A delivers GSM/GPRS 900/1800MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, SIM900A can fit almost all the space requirements in your applications, especially for slim and compact demand of design.


  • Dual-Band 900/ 1800 MHz
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2+
  • Class 4 (2 W @900 MHz)
  • Class 1 (1 W @ 1800MHz)
  • Dimensions: 24*24*3 mm
  • Weight: 3.4g
  • Control via AT commands (GSM 07.07, 07.05 and
  • SIMCOM enhanced AT Commands)
  • SIM application toolkit
  • Supply voltage range: 3.1-4.8V
  • Low power consumption: 1.5mA(sleep mode)
  • Operation temperature: -40° C to +85°C

Specifications for Fax
Group 3, class 1

Specifications for Data
GPRS class 10: max. 85.6 kbps (downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
CSD up to 14.4 kbps
Non transparent mode
PPP-stack Specifications for SMS via GSM/GPRS
Point to point MO and MT
SMS cell broadcast
Text and PDU mode
Specifications for Voice
– Half rate (HR)
– Full rate (FR)
– Enhanced Full rate (EFR)
Hands-free operation
(Echo suppression)
– Half rate (HR)
– Full rate (FR)