ANT-315-HESM

Antennas RF Overview

The ANT-315-HESM is a surface-mount helical RF antenna designed for the 315 MHz ISM band. It operates within a frequency range of 304 MHz to 325 MHz with a center frequency of 315 MHz. The component features a solder termination and offers a gain of 0 dBi. It maintains a VSWR of 2 and has a maximum height of 120.00 mm (4.724 inches). The antenna is RoHS compliant, classified under EAR99, and carries an MSL rating of 1.

Antennas RF Feature Summary

• Helical whip design optimized for vertical polarization in compact form factors
• Surface mount solder termination for automated PCB assembly integration
• Broadband operation covering standard 315 MHz ISM regulatory allocations

Antennas RF Applications

• Wireless alarm systems
• ISM band remote control devices
• Security system transmitters

Antennas RF Procurement Notes

Verify the specific datasheet revision date upon ordering, as TE Connectivity Linx may update specifications over time. Confirm that the surface mount footprint matches the latest mechanical drawing provided in the official documentation. Ensure the receiving facility can handle the specified maximum height constraint during assembly processes.

Antennas RF Selection Notes

Select this model when a low-profile yet extended vertical radiator is required for 315 MHz applications. The helical structure provides efficient radiation patterns suitable for fixed installations. Consider the physical dimensions carefully, as the whip length significantly exceeds typical planar antenna heights. Verify compatibility with the target device's enclosure geometry before finalizing the design.

Antennas RF Part Context

This component belongs to the ANT-315 series of RF antennas manufactured by TE Connectivity Linx. The series includes various configurations such as through-hole and connectorized versions. The HESM suffix specifically denotes the helical style with surface mount soldering capabilities, distinguishing it from other mounting options within the same frequency family.

Antennas RF Replacement Considerations

Direct substitutes include the ANT-315-CW-HW-SMA for connectorized needs or the ANT-315-HETH for through-hole requirements. For similar surface mount helical designs at different frequencies, consult the broader ANT-433 or ANT-868 series catalogs. Always validate electrical performance against the original design requirements when cross-referencing.