The 433MHz Helical Spring Antenna is a compact and high-performance antenna designed for reliable wireless communication in RF modules, LoRa transmitters, remote control systems, and IoT devices. This antenna offers excellent transmission stability and signal gain, making it ideal for long-range, low-power communication at 433MHz frequency bands. Its spring-shaped helical design ensures strong signal performance while maintaining a small form factor for PCB mounting and direct soldering applications.

Constructed with high-quality auratus (gold-plated) wire, this antenna provides superior conductivity, durability, and corrosion resistance, ensuring consistent performance over time. It is suitable for use with 433MHz RF modules, such as CC1101, SX1278, NRF905, HC-12, and other ISM band transceivers.

Features:

1. Optimized Frequency Range: 433MHz ±6MHz, ideal for ISM band communication systems.

2. Compact Helical Design: Space-saving spring structure for easy PCB or enclosure integration.

3. High Signal Gain: 2.2dBi gain ensures stable and extended communication range.

4. Standard Impedance: 50Ω input impedance compatible with most RF circuits.

5. Durable Construction: Gold-plated auratus finish enhances conductivity and prevents oxidation.

6. Direct Welding Connector: Simple soldering installation for reliable mechanical and electrical connection.

7. Wide Compatibility: Works with LoRa, RF, and remote control modules.

8. High Power Handling: Supports up to 30dBm transmission power.

9. Lightweight and Compact: Perfect for small-size embedded applications.

Specifications:

• Frequency Range: 433MHz ±6MHz

• Gain: 2.2dBi

• Input Impedance: 50Ω

• Maximum Power: 30dBm

• Diameter: 5mm

• Length: 34mm ±1mm (including welding section)

• Height: 20mm ±1mm (exposed section)

• Color: Auratus (gold-plated)

• Connector Type: Direct weldment

• Antenna Type: Helical spring antenna

• Material: Copper wire with gold plating

Package Includes:

• 1 x 433MHz Helical Spring Antenna for Wireless Module

The 433MHz Helical Spring Antenna is widely used in LoRa communication, RF transmitter-receiver modules, wireless sensors, remote control systems, and telemetry projects. It provides stable signal performance and is a cost-effective solution for wireless applications that demand reliability and compact design.

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