433MHz Helical Spring Antenna

2.15dBi Gain at 433MHz

433MHz spring antenna is a spiral-shaped antenna for use with 433MHz transmitters or receivers. Very common and widely used in security monitoring, Internet of Things, RF remotes, RFID, industrial remote control, to name a few. They feature a low VSWR, are easily installed, and offer stable performance with good anti-vibration qualities.

Easy to use with excellent performance and can be soldered directly to the wireless module. Spring size measures only 37mm (approximately 1.5-inch in length).

Drastically improves reception distance and signal quality when used with 433MHz transmitters and receivers.

Specifications:

Frequency: 433 (+/- 5) MHz
VSWR: <1.5
Gain: 2.15 dBi
Input Impedance: 50 ohm
Maximum Power: 10W
Wire Diameter: 0.8mm
Height: 32 +/-1 mm (23.5 Turns)
Weight: 2g

Package: Packaged Individually