HDDA3W-25-DP RF Antenna Equivalent & Substitute Parts

Part Overview

The HDDA3W-25-DP is a 3.6GHz WiMax™ and Wi-Fi dish RF antenna manufactured by TE Connectivity Laird. This UHF band antenna operates across the 3.3GHz to 3.8GHz frequency range with 25dBi gain and N Type Female termination, designed for bracket mount applications. The HDDA3W-25-DP is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing system deployments where this antenna model is specified.

Substiute Parts

HDDA3W-25-DP

TE Connectivity LairdIn Stock: 957HDDA3W-25-DP Datasheet

Current PartRFQ

HDDA3W-25-SP

TE Connectivity LairdIn Stock: 836HDDA3W-25-SP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HDDA3W-25-DP are identified based on strict electrical and mechanical parameter matching within the HD series antenna family. The substitution criteria are:

Critical Matching Parameters:

• Frequency range: 3.3GHz ~ 3.8GHz (center 3.6GHz)
• Antenna type: Dish configuration
• Gain specification: 25dBi
• Termination: N Type Female connector
• Mounting interface: Bracket Mount
• Physical dimensions: 25.512" (648.00mm) maximum height
• VSWR: 1.5
• Power handling: 100 W maximum
• RF Family/Standard: WiFi
• Frequency Group: UHF (3GHz ~ 4GHz)
• RoHS compliance: Compliant
• MSL rating: 1 (Unlimited)

The HDDA3W-25-SP is classified as a parametric equivalent substitute because all electrical performance parameters, mechanical dimensions, connector specifications, and compliance certifications are identical to the main part. The primary difference is product status (Active vs. Obsolete) and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The HDDA3W-25-SP is the direct substitute for the obsolete HDDA3W-25-DP. Selection of the substitute part is based on the following engineering factors:

Product Status Consideration: The HDDA3W-25-DP is classified as obsolete, which indicates end-of-life status and potential supply constraints. The HDDA3W-25-SP maintains active product status, ensuring ongoing availability and manufacturer support.

Electrical and Mechanical Equivalence: All RF performance parameters, impedance characteristics, frequency response, gain specifications, and mechanical mounting interfaces are identical between the two parts. No circuit redesign or mechanical modification is required for substitution.

Compliance and Certification: Both parts carry identical RoHS compliance status and MSL ratings, confirming equivalent environmental and regulatory qualification.

Packaging Difference: The HDDA3W-25-SP is supplied in bulk packaging, whereas the main part packaging is not specified. Bulk packaging is standard for production quantities and does not affect functional performance or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can HDDA3W-25-SP be used as a direct replacement for HDDA3W-25-DP in existing designs?

A: Yes. The HDDA3W-25-SP is a direct parametric equivalent. All electrical specifications, RF performance characteristics, connector types, mounting interfaces, and physical dimensions are identical. No design modifications are required.

Q: What is the difference between HDDA3W-25-DP and HDDA3W-25-SP?

A: The primary differences are product status and packaging. HDDA3W-25-DP is obsolete; HDDA3W-25-SP is active. HDDA3W-25-SP is supplied in bulk packaging. All technical specifications are identical.

Q: Are the frequency ranges identical?

A: Yes. Both parts operate across 3.3GHz to 3.8GHz with 3.6GHz center frequency, identical VSWR of 1.5, and 25dBi gain.

Q: Is the N Type Female connector the same on both parts?

A: Yes. Both parts use N Type Female termination with identical electrical and mechanical specifications.

Q: Can these antennas be used interchangeably in WiMax™ and Wi-Fi applications?

A: Yes. Both parts are specified for WiMax™ and Wi-Fi applications across the UHF frequency band (3GHz ~ 4GHz) with identical performance parameters.

Q: What is the maximum power handling capability?

A: Both parts are rated for 100 W maximum power.

Q: Are there any compliance or certification differences?

A: No. Both parts are RoHS Compliant with MSL rating of 1 (Unlimited), indicating identical environmental and moisture sensitivity qualification.

Q: What mounting options are available?

A: Both parts feature bracket mount configuration with identical mechanical dimensions of 25.512" (648.00mm) maximum height.