Delta 21433MHz ISM Stubby Antenna, SMA Male

The Delta 21 is a dedicated 433MHz ISM band antenna which combines good performance with a small size, enabling its use with many of today’s remote control systems and 433MHz alarm systems.

Terminated with an SMA male connector, it is ideally suited to applications requiring a simple, cable free set up, such as alarm panel equipment and garage or gate remote controls and radio systems including TETRA.

The knuckle design allows the antenna to be positioned to take best advantage of the incoming signal. Allowing straight, 45° and 90° positions along with 360° rotation. The omni directional, radiating element is capped with a black high-grade rubber mould.

Key Features

  • Dedicated ISM Antenna
  • ISM Band: 433MHz
  • Discrete Antenna size
  • TETRA Compatible

Electrical Specifications

  • Impedance: 50 Ohm
  • Max Power: 50W
  • Peak Gain: 1 dBi
  • VSWR: <1.5 @ 433MHz
  • Operating Frequencies: 433MHz
  • Radiation: Omni
  • Polarization: Vertical

Environmental Specifications

  • Operating Temperature range: -20 – +60°C
  • Storage Temperature range:-30 – +75°C

Mechanical Specifications

  • Dimensions: L68mm
  • Connector: SMA male
  • Mounting Method: Direct connect
  • Radome Material: Polyurethane


Product Features
D
Direct
ISM
433
Omni
directional

Product Compliance
RoHS
Compliant
REACH
Compliant
TSCA
Assessed
CMRT
Aligned
Anti
Slavery

Datasheets

Delta 21 Datasheet

Additional Resources

Antenna Fact Sheet
Understanding Antenna Theory
Antenna 2D Radiation Plot Guide
Visual Guide to Radiation Plots
IP Rating Guide

Ordering Information

Siretta Part Number: DELTA21/X/SMAM/S/S/20
Description: Stubby 433MHz ISM Band Antenna, SMA Male

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