WIH-AT-FA-HW RF Antenna 916MHz Whip Straight RP-SMA Male

Part Overview

The WIH-AT-FA-HW is a 916MHz whip straight RF antenna with RP-SMA male connector mount, manufactured by Thomas Research Products as part of the wiHUBB® series. This component is designed for UHF band applications operating at 916MHz center frequency. The product is currently obsolete, making identification of equivalent substitute parts essential for ongoing system support, maintenance, and new design implementations where this frequency band and form factor are required.

Substiute Parts

WIH-AT-FA-HW

Thomas Research ProductsIn Stock: 1014WIH-AT-FA-HW Datasheet

Current PartRFQ

ANT-916-CW-HW

TE Connectivity LinxIn Stock: 3401ANT-916-CW-HW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Frequency Compatibility: Center or operating frequency within the 916MHz band or adjacent ISM band allocations (900MHz ~ 930MHz range)
• Antenna Type: Whip, straight configuration
• Connector Interface: RP-SMA male termination
• Mounting Method: Connector mount
• Physical Dimensions: Maximum height of 4.724" (120.00mm)
• Electrical Performance: VSWR specification of 1.9 or better
• Band Configuration: Single-band operation

The substitute part ANT-916-CW-HW meets all these criteria, operating within the 915MHz ISM band with a frequency range of 900MHz ~ 930MHz, maintaining identical mechanical and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The ANT-916-CW-HW manufactured by TE Connectivity Linx is the qualified substitute for the obsolete WIH-AT-FA-HW. Selection of this substitute is supported by:

• Frequency Alignment: The 915MHz center frequency with 900MHz ~ 930MHz operating range encompasses the original 916MHz specification, ensuring compatibility within ISM band allocations
• Mechanical Equivalence: Identical physical dimensions (4.724" / 120.00mm height) and RP-SMA male connector interface enable direct form-factor replacement
• Electrical Performance: Matching VSWR of 1.9 maintains equivalent RF performance characteristics
• Product Status: Active manufacturing status ensures availability and supply chain continuity
• Compliance: RoHS compliant status meets current regulatory requirements, whereas the original part does not

The ANT-916-CW-HW is suitable for applications requiring ISM band operation, LoRa, sensor networks, and SigFox implementations.

Frequently Asked Questions (FAQ)

Q: Can the ANT-916-CW-HW directly replace the WIH-AT-FA-HW in existing designs?

A: Yes. Both parts share identical mechanical dimensions, connector type, and electrical performance specifications (VSWR 1.9). The 1MHz frequency offset (916MHz vs. 915MHz) falls within the common 900MHz ~ 930MHz ISM band allocation, ensuring functional compatibility.

Q: What is the significance of the frequency range specification for the substitute part?

A: The ANT-916-CW-HW specifies a 900MHz ~ 930MHz operating range, which provides broader frequency coverage than the original part's single 916MHz center frequency. This range encompasses the original specification and provides operational flexibility across the ISM band.

Q: Are there compliance differences between these parts?

A: Yes. The WIH-AT-FA-HW is RoHS non-compliant, while the ANT-916-CW-HW is RoHS compliant. For new designs or systems subject to RoHS requirements, the substitute part meets current regulatory standards.

Q: Does the gain specification difference affect substitution suitability?

A: The ANT-916-CW-HW specifies 1.2dBi gain, while the original part does not provide a gain specification. The specified gain of the substitute part represents documented performance and does not preclude substitution; it indicates measured antenna efficiency.

Q: What connector type is used on both parts?

A: Both the WIH-AT-FA-HW and ANT-916-CW-HW use RP-SMA male connectors, ensuring mechanical and electrical interface compatibility.

Q: Is packaging a consideration for substitution?

A: The original part is listed as obsolete with legacy packaging designation. The substitute part is supplied in bulk packaging as an active product, which is standard for current procurement.