WIH-AT-AA RF Antenna 916MHz Whip Tilt RP-SMA Equivalent & Substitute Parts

Part Overview

The WIH-AT-AA is a 916MHz whip tilt RF antenna with RP-SMA male connector mount, manufactured by Thomas Research Products as part of the wiHUBB® series. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations. The antenna operates in the UHF frequency band (300MHz ~ 1GHz) and is designed for applications requiring compact, tilting antenna configurations with standard RP-SMA termination.

Substiute Parts

WIH-AT-AA

Thomas Research ProductsIn Stock: 1102WIH-AT-AA Datasheet

Current PartRFQ

ANT-916-OC-LG-RPS

TE Connectivity LinxIn Stock: 1601ANT-916-OC-LG-RPS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WIH-AT-AA is determined by the following critical parameters:

• Frequency Compatibility: Center frequency or frequency range must encompass 916MHz operation
• Antenna Type: Must be whip or tilt configuration to maintain form factor and mechanical compatibility
• Termination: RP-SMA male connector is mandatory for direct interface compatibility
• Mounting Type: Connector mount configuration required
• VSWR Performance: Maximum VSWR of 2 or better ensures impedance matching equivalence
• Number of Bands: Single-band operation maintains frequency selectivity

The ANT-916-OC-LG-RPS from TE Connectivity Linx satisfies all substitution criteria through its 915MHz center frequency with 895MHz ~ 935MHz frequency range (encompassing 916MHz), whip tilt antenna type, RP-SMA male termination, connector mount configuration, and equivalent VSWR specification of 2.

Parameter Comparison

Engineering Selection Recommendations

The ANT-916-OC-LG-RPS is a direct functional substitute for the WIH-AT-AA based on electrical and mechanical parameter equivalence. Key considerations for component selection:

Product Status: The WIH-AT-AA is obsolete with limited inventory availability (1063 pcs). The ANT-916-OC-LG-RPS maintains active product status with established supply chain support (1497 pcs in stock), ensuring long-term availability for production and field replacement requirements.

Regulatory Compliance: The ANT-916-OC-LG-RPS is RoHS compliant and REACH unaffected, meeting current environmental and regulatory standards. The WIH-AT-AA is RoHS non-compliant, which may present constraints for new designs or applications subject to RoHS requirements.

Physical Dimensions: The ANT-916-OC-LG-RPS has a maximum height of 7.618" (194.60mm) compared to the WIH-AT-AA at 5.591" (142.00mm). Space-constrained applications must verify mechanical clearance before substitution.

Frequency Performance: The ANT-916-OC-LG-RPS operates at 915MHz center frequency with a 895MHz ~ 935MHz range, providing full coverage of the 916MHz operating point. Both antennas maintain equivalent VSWR performance of 2, ensuring impedance matching compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ANT-916-OC-LG-RPS directly replace the WIH-AT-AA in existing designs?

A: Yes, provided mechanical space constraints are satisfied. The ANT-916-OC-LG-RPS is 51.49mm taller than the WIH-AT-AA. Verify available mounting height in your application before implementation.

Q: What is the frequency compatibility between these two antennas?

A: The WIH-AT-AA operates at 916MHz. The ANT-916-OC-LG-RPS operates at 915MHz center frequency with a 895MHz ~ 935MHz range, fully encompassing 916MHz operation. Both antennas are suitable for 916MHz applications.

Q: Are the connector interfaces identical?

A: Yes. Both antennas use RP-SMA male connectors with connector mount configurations, ensuring direct mechanical and electrical interface compatibility.

Q: What is the significance of the VSWR specification?

A: VSWR (Voltage Standing Wave Ratio) of 2 indicates impedance matching performance. Both antennas specify VSWR of 2, confirming equivalent RF performance characteristics and return loss behavior at their respective operating frequencies.

Q: Why is RoHS compliance relevant for this substitution?

A: RoHS compliance indicates adherence to restrictions on hazardous substances in electrical and electronic equipment. The ANT-916-OC-LG-RPS is RoHS compliant, meeting regulatory requirements for applications in regions with RoHS mandates. The WIH-AT-AA is non-compliant, which may restrict its use in new designs or regulated markets.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture control requirements. Both antennas carry MSL 1, requiring no special storage or handling procedures related to moisture exposure.

Q: Are there any gain differences between these antennas?

A: The ANT-916-OC-LG-RPS specifies 2.2dBi gain. The WIH-AT-AA gain specification is not provided. The specified gain of the substitute part indicates directional radiation characteristics suitable for ISM, LoRa, Sensor Networks, and SigFox applications.