WIH-AT-FA-48 Equivalent & Substitute Parts

Part Overview

The WIH-AT-FA-48 is a 916MHz whip straight RF antenna manufactured by Thomas Research Products, designed for panel mount applications with RP-SMA male termination and 1.2m cable integration. This component operates in the UHF frequency band (300MHz ~ 1GHz) and is classified as obsolete product status.

Due to obsolescence, equivalent substitute parts are necessary to maintain system compatibility and ensure continued availability for new designs or field replacements. The substitute parts listed below maintain functional equivalence based on critical electrical and mechanical parameters.

Substiute Parts

WIH-AT-FA-48

Thomas Research ProductsIn Stock: 958WIH-AT-FA-48 Datasheet

Current PartRFQ

ANT-916-CW-RH

TE Connectivity LinxIn Stock: 2698ANT-916-CW-RH Datasheet

SimilarRFQ

ANT-916-MHW-RPS-S

TE Connectivity LinxIn Stock: 1628ANT-916-MHW-RPS-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WIH-AT-FA-48 are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Frequency band alignment (915MHz ~ 916MHz center frequency within UHF range)
• Antenna type classification (whip configuration)
• Termination connector type (RP-SMA Male)
• VSWR specification (1.9)
• Number of bands (single band operation)

Identified Substitutes:

1. ANT-916-CW-RH (TE Connectivity Linx): Matches primary criteria with connector mount configuration and active product status. Frequency range 900MHz ~ 935MHz encompasses the 916MHz operating point.

2. ANT-916-MHW-RPS-S (TE Connectivity Linx): Matches primary criteria with extended frequency range (816MHz ~ 1.016GHz) and adhesive mounting. Center-fed double whip configuration with higher gain (5.4dBi) and increased height (5.433").

Parameter Comparison

Engineering Selection Recommendations

ANT-916-CW-RH Selection Criteria:

• Active product status ensures long-term availability and supply chain continuity
• RoHS compliant, meeting modern environmental and regulatory requirements
• Identical VSWR (1.9) and height (51.00mm) specifications
• Frequency range (900MHz ~ 935MHz) fully encompasses 916MHz operation
• Connector mount configuration differs from panel mount; integration method requires design review

ANT-916-MHW-RPS-S Selection Criteria:

• Active product status with RoHS compliance
• Identical VSWR (1.9) and RP-SMA male termination
• Extended frequency range (816MHz ~ 1.016GHz) provides broader operational bandwidth
• Center-fed double whip configuration with 5.4dBi gain differs from straight whip
• Increased height (138.00mm) and adhesive mounting require mechanical redesign
• Suitable for applications requiring higher gain performance

Frequently Asked Questions (FAQ)

Q: Can ANT-916-CW-RH directly replace WIH-AT-FA-48 without design changes?

A: ANT-916-CW-RH maintains electrical equivalence (VSWR, frequency, termination, height) but uses connector mount instead of panel mount. Mechanical integration requires design modification.

Q: What is the primary difference between ANT-916-CW-RH and ANT-916-MHW-RPS-S?

A: ANT-916-CW-RH is a straight whip antenna with connector mount and -1.3dBi gain at 51.00mm height. ANT-916-MHW-RPS-S is a center-fed double whip with adhesive mount, 5.4dBi gain, and 138.00mm height. Selection depends on mechanical space constraints and gain requirements.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both ANT-916-CW-RH and ANT-916-MHW-RPS-S are RoHS compliant, whereas the original WIH-AT-FA-48 is RoHS non-compliant.

Q: What frequency tolerance exists between the original part and substitutes?

A: WIH-AT-FA-48 operates at 916MHz center frequency. ANT-916-CW-RH operates at 915MHz within 900MHz ~ 935MHz range. ANT-916-MHW-RPS-S operates at 915MHz within 816MHz ~ 1.016GHz range. Both substitutes cover the original operating frequency.

Q: Do the substitutes maintain the same cable configuration?

A: WIH-AT-FA-48 includes 1.2m cable. ANT-916-CW-RH has no specified cable feature. ANT-916-MHW-RPS-S includes 2m cable. Cable integration differs between parts.