High-performance 433MHz Spring Antennas

What are the 433MHz spring antennas?

The 433MHz spring antennas are high-performance spring coil helical antennas designed for use in 433MHz RF transmitter and receiver applications, manufactured by C&T RF Antennas Inc. for LoRa and ISM applications. The 433MHz spring antenna is used for wireless communication, mainly for receiving and transmitting radio waves. Its operating center frequency is 433MHz and is suitable for various wireless communication applications.

The 433MHz spring antennas exhibit good VSWR performance, a simple form factor, a compact structure, easy installation, high performance, good anti-vibration properties, and excellent aging resistance. These features make it an excellent performer in various wireless communication devices and modules, especially in applications that require high stability and reliability.

The 433MHz spring antenna is a vital component in wireless modules, extensively employed in security surveillance, telephones, 3G, RFID, 2.4GHz, smart water meters, gas meters, wireless meter reading, industrial remote control, LED screen graphic updates, vehicle anti-theft systems, tyre anti-theft devices, and data transmission.

The 433MHz band operates within the licence-exempt ISM spectrum (420MHz-440MHz). We also offer alternative carrier frequencies at 868MHz and 915MHz (customisable antenna designs available upon request).

Our spring antennas are compatible with diverse 433MHz wireless devices. Our spring antennas are available in phosphor bronze, phosphor bronze (yellow), and carbon steel variants. Suitable for diverse 433MHz wireless devices, including CC1100/CC1020/NRF905/RF903/SI4431/S14432 wireless modules and other products, they offer convenient operation and superior performance.

Featuring an integrated spring antenna that can be directly soldered onto PCB boards, they deliver stable and reliable performance with low VSWR and high gain. They also offer excellent vibration resistance and anti-ageing properties.

 

Besides the High-performance 433MHz spring antennas, we also provide 868MHz helical antennas, 915MHz helical antennas, 868/915MHz spring antennas, 3G GSM spring antennas, WiFi helical antennas, 4G NB-IoT LTE-M helical antennas, GPS/GNSS spring antennas, and 315MHz spring antennas for your choice.

C&T RF Antennas Inc. provides many different types of RF antennas, adapters, amplifiers, and cable assemblies. The internal & external antennas with Omni and directional antennas single-band/dual-band/multi-band/extra wideband radio frequencies such as 13.56 MHz, 169 MHz, 230 MHz, 315 MHz, 433 MHz, 868 MHz, 915 MHz, VHF&UHF, ADS-B, 2.4 GHz, 5 GHz, 1.2 GHz, 1.4 GHz, 1.8 GHz, 2G 3G 4G, 5G NR, etc.

The RF products supplied by C&T RF Antennas Inc. are used for Cellular, LTE, CBRS, GSM, LTE-M, UMTS, GPRS, DAS, LPWA, NB-IoT, Sigfox, LoRa, and wireless, Wi-Fi, Bluetooth, ISM, RFID, NFC, and GNSS/GPS/UWB applications. Contact us for more specs you need.

 

 

Characteristics of the 433MHz band

Application-free use

Strong anti-interference capability

Long transmission distance

Low cost

Good penetration

etc.

 

 

Applications of 433MHz Spring Antennas

The 433MHz frequency band is widely used in many fields, including the following applications.

Remote controls

Wireless access control systems

Wireless sensor networks

Data transmissions

Wireless audio transmissions

Smart homes

Industrial controls

Remote meter readings

Smart home security alarm systems

etc.

 

 

Types of High-performance 433MHz Spring Antennas

C&T RF Antennas Inc. provides a list of high-performance 433MHz spring antennas. Below are some of the styles of 433MHz spring antennas.

 

 

Item SKU: CTRF-ANTENNA-SP-0433-1214W

High-performance Spring Antenna 433MHz Transmitter Antenna For Module

Specifications:

Material: Spring coil

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ12*14mm

 

 

 

Item SKU: CTRF-ANTENNA-SP-0433-1412W

High-performance & Low-profile Spring Coil Antennas

Specifications:

Material: Spring coil

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ14*2mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-1605W

High-performance Data Transmission Helical Antenna RF 433MHz Spring Coil Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 1dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ15.8*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-1905

High-performance Helical Antenna 433MHz Receiver Antenna For 433 RF Module

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 1.5dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ19.5*5.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2005W

High-performance 433 MHz Helical Coil Antenna For RF Wireless Module

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ20.5*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2105W

High-performance 433 MHz RF Transmitter Receiver Module Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Wire ID: 0.6mm

Dimension: Φ21*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2305W

High-performance 433 MHz RF Spring Helical Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ23*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2505W

High-performance 433 MHz RF Wireless Module Spring Antenna for Modules

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ25*5.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2604W

High-performance Embedded 433MHz Helical Coil Spring Wire Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ26*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2704W

High-performance 433MHz Helical Antenna Coil Spring Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ27*4.2mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2705W

High-performance 433MHz Helical Spiral Spring Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 2dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ27*5.4mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-2905W

High-performance 433MHz Lora Module Antenna RF Receiver Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ29*5 mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3004W

High-performance 433MHz Spring Coil Helix Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ30*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3004

High-performance RF Module 433 MHz Copper Spring Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ30*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3204W

High-performance RF 433 MHz Coil Spring Antenna for Data Transmission and Reception

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ32*4.7mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3208W

High-performance 433mhz Spring Antenna For RF Receiver And Transmitter Module

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi
H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ32*8mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3405

High-performance 433 MHz RF Receiver & Transmitter Module Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ34*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3504

High-performance Copper Wire Spring RF Spiral Antenna 433 MHz For RF Modules

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ35*4.2mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3505

High-performance Simple Spring Antenna 433 MHz Helica Coil Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ35*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3605

High-performance RF 433 MHz Spring Coil Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ36*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3804

High-performance RF 433 MHz Helical Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ38*4.5mm

 

 

Item: CTRF-ANTENNA-SP-0433-3805

High-performance Spring Material RF 433 MHz Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ38*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3805W

High-performance RF Transmitter Long-Range Spring Coil 433MHz Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ38.5*5.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-3905

High-performance Internal Helical Coil Antenna RF 433 MHz Module Receiver Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ39.5*5.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-4103W

High-performance Long-range Module Antenna 433 MHz Spring Helical Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ41*3mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-4104

High-performance 433 MHz Spring Helical Module Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ41*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-4205

High-performance 433MHz Spring Antenna for RF Module Helix Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ42*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-4304

High-performance Helical Spring Antenna 433MHz for Wireless Modules

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 4dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ43*4.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-5705

High-performance 433 MHz Spring Helical Coil Antenna For RF Module

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 5dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Wire ID: 0.5mm

Dimension: Φ57*5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-6504W

High-performance & Long-range 433MHz Spring Copper Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 5dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ65*4.3mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-6603

High-performance 433 MHz RF Receiver Transmitter Module Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 5dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ66*3.5mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-7804

High-gain & Long-range Antenna 433MHz RF Antenna

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 6dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Dimension: Φ78*4.3mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-32118-IPEX

High-performance 433Mhz Spring Antenna with an IPEX Connector

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Cable: RG1.13 118mm

Dimension: Φ32**4.5*118mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-35115-IPEX

High-performance 433Mhz Spring Antenna with a U.FL Connector

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 3dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Cable: RG1.13 115mm

Dimension: Φ35**4.5*115mm

 

 

 

Item: CTRF-ANTENNA-SP-0433-53150-IPEX

High-gain 433MHz Spring Coil Antenna With a Heat-shrinkable Tube

Specifications:

Material: Spring

Frequency center: 433MHz

Gain: 5dBi

H-Beam width: 360°

V.S.W.R:≤2.0

Polarization: Vertical

Cable: RG1.13 150mm

Dimension: Φ53**7.5*150mm

 

 

 

C&T RF Antennas Inc. supplies the existing 433MHz spring antennas, and customization of them is workable.

 

 

 

 

 

Spring Coil Antennas with Heat-shrinkable Tubes Are Choosable

 

 

 

Besides the helical antennas. C&T RF Antennas Inc. also offers 433 MHz antennas in various types, including external adhesive mount antennas, fiberglass antennas, Yagi antennas, sector antennas, magnetic antennas, rubber duck antennas, and through-hole screw mount puck antennas. Internal ceramic antennas, PCB antennas, flexible PCB antennas, etc. Contact us for more specs you need.