N542AS High-Power RF Module | Si4463-Based | +33dBm | 169/433/868/915MHz
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N542AS High-Power, Long-Range Sub-1 GHz Wireless Module
Based on Silicon Labs Si4463 | Up to +33 dBm Output | 8 km Range
Product Overview
The N542AS is a high-performance, long-range wireless module designed for demanding IoT applications where distance and link reliability are critical. Integrating the robust Silicon Labs Si4463 transceiver with an external high-power amplifier, it delivers an exceptional +33 dBm output power, enabling reliable communication over distances up to 8 kilometers line-of-sight. Supporting key Sub-1 GHz ISM bands (169, 433, 868, 915 MHz), it combines extreme range with the ultra-low sleep current of the Si4463, making it ideal for battery-operated, wide-area sensor networks and telemetry.
Key Features & Benefits
Exceptional High Power Output: Delivers up to +33 dBm, maximizing range and penetration in challenging environments.
Ultra-Long Range: Achieves reliable communication up to 8000 meters under ideal conditions, far surpassing standard modules.
Multi-Band Global Support: Available in variants for 169, 433, 868, and 915 MHz bands, suitable for global deployments (EU, USA, China, etc.).
Superior Receiver Performance: High sensitivity of -123 dBm ensures stable links even at low data rates.
Ultra-Low Power in Sleep: Consumes only 0.1 µA in sleep mode, preserving battery life for years in duty-cycled applications.
Complete Development Control: All Si4463 pins are accessible via the module's SPI interface for full hardware and firmware customization.
Robust Design: Operates across a wide temperature range (-40°C to +85°C) for industrial and outdoor use.
Applications
Industrial IoT & SCADA: Long-range monitoring and control in oil & gas, utilities, and manufacturing.
Smart Agriculture & Environmental Sensing: Wide-area soil monitoring, weather stations, and forest protection.
Advanced Metering Infrastructure (AMI): Long-distance collection for water/gas/electricity meters in sparse areas.
Urban Infrastructure & Security: City-wide sensor networks for lighting, waste management, and perimeter security.
Telemetry & Remote Control: Drone command links, remote actuator control, and scientific data acquisition.
Technical Specifications
RF & Performance Specifications
| Parameter | Specification | Conditions / Notes |
|---|---|---|
| Frequency Bands | 169, 433, 868, 915 MHz | Model dependent (see ordering info) |
| Max. Output Power | +33 dBm | |
| Receiver Sensitivity | -123 dBm | @ 1.2 kbps |
| Modulation | (G)FSK, OOK | Programmable via Si4463 |
| Data Symbol Rate | 0.3 - 500 kbps | |
| Typical Range | 8000 m | Line-of-sight, ideal conditions |
| Antenna Interface | RF Pad & IPEX Connector | 50 Ω impedance |
Electrical & Physical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 5.0 V (Required for PA) |
| Tx Current (Peak) | ~1000 mA @ +33 dBm |
| Rx Current | 18 mA |
| Sleep Current | 12 µA |
| Operating Temperature | -40°C to +85°C |
| Module Dimensions | 36.0 x 24.0 x 3.0 mm |
| Host Interface | SPI (Full control of Si4463) |
| Package | Surface Mount (SMD) |
Ordering Information
| Ordering Code | Core IC | Target Frequency Band | Output Power |
|---|---|---|---|
| N542AS-169M | Si4463 + PA | 160 - 175 MHz | +33 dBm |
| N542AS-433M | Si4463 + PA | 410 - 480 MHz | +33 dBm |
| N542AS-868M | Si4463 + PA | 860 - 880 MHz | +33 dBm |
| N542AS-915M | Si4463 + PA | 902 - 928 MHz | +33 dBm |
Contact us for custom frequency variants, conformance testing support, or volume pricing.
Choosing the Right Si4463 Solution
The N541AS occupies the strategic middle ground in our performance series, offering the best balance of power, range, and system complexity.
| N540AS Module | N541AS Module | N542AS Module | |
|---|---|---|---|
| Core IC | Si4463 | Si4463 + PA | Si4463 + High-Power PA |
| Output Power | +20 dBm | +27 dBm | +33 dBm (2Watt) |
| Key Value | Size & Power Optimized | Best Range/Power Balance | Maximum Power & Range |
| Ideal For | Compact, battery-critical devices | <u>Your Current View</u>: Extended-range telemetry, wide-area networks | Extreme-range, fixed-installation backhaul |
| Next Step | [View N540AS Details →] | [Explore N541AS →] | [▼ Download N541AS Datasheet] |
Why Choose the N541AS?
The N541AS is the pragmatic choice for engineers who need more range than a basic module can provide, but want to avoid the complexity, cost, and higher power consumption of a full 2Watt solution. It solves the problem of covering large farms, industrial campuses, or suburban networks effectively, offering a significant range boost over +20dBm modules while remaining easier to integrate and power than its +33dBm counterpart. It's about smart performance, not just maximum power.
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