SGGP.18.4.A.02 Equivalent & Substitute Parts

Part Overview

The SGGP.18.4.A.02 is a 1.6GHz ceramic patch RF antenna manufactured by Taoglas Limited, designed for dual-band GLONASS and GPS navigation applications. Operating across the 1.575GHz to 1.602GHz frequency range, this surface mount antenna delivers 0.26dBic and 1.25dBic gain across its supported bands. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

SGGP.18.4.A.02

Taoglas LimitedIn Stock: 933SGGP.18.4.A.02 Datasheet

Current PartRFQ

SGGP.18.4.A.08

Taoglas LimitedIn Stock: 5291SGGP.18.4.A.08 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SGGP.18.4.A.02 is determined by strict alignment across the following critical parameters:

• Antenna Type: Ceramic Patch (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)
• Physical Dimensions: Height maximum 0.157" (4.00mm) (fixed requirement)
• Termination Method: Solder (fixed requirement)
• Frequency Coverage: Operational within or encompassing 1.575GHz ~ 1.602GHz range
• Number of Bands: Dual-band configuration
• RF Family/Standard: Navigation (GNSS applications)
• Compliance: ROHS3 Compliant, MSL 3 rating

The SGGP.18.4.A.08 qualifies as a direct substitute based on identical compliance with all fixed parameters, shared manufacturer origin, and extended frequency coverage that encompasses the original part's operational band.

Parameter Comparison

Engineering Selection Recommendations

The SGGP.18.4.A.08 is the qualified substitute for the obsolete SGGP.18.4.A.02. Selection is based on the following engineering criteria:

• Product Status: The SGGP.18.4.A.08 maintains active production status, ensuring long-term supply chain availability and manufacturing support.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL 3 ratings, confirming equivalent environmental and handling requirements.
• Physical Compatibility: Identical mounting footprint, height, and termination method ensure direct PCB layout compatibility without redesign.
• Frequency Coverage: The SGGP.18.4.A.08 frequency ranges (1.574GHz ~ 1.576GHz, 1.598GHz ~ 1.607GHz) fully encompass the original part's operational band (1.575GHz ~ 1.602GHz), supporting GLONASS and GPS applications without functional degradation.
• Expanded Application Support: The substitute adds Galileo compatibility, extending system capability without compromising existing GNSS functionality.

Frequently Asked Questions (FAQ)

Q: Can the SGGP.18.4.A.08 be used as a direct replacement for the SGGP.18.4.A.02 on existing PCBs?

A: Yes. Both parts share identical physical dimensions (0.157" maximum height), surface mount configuration, and solder termination. No PCB layout modifications are required.

Q: What is the difference in packaging between these parts?

A: The SGGP.18.4.A.02 uses standard packaging, while the SGGP.18.4.A.08 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume production and automated assembly processes.

Q: Does the SGGP.18.4.A.08 support the same navigation standards as the original part?

A: The SGGP.18.4.A.08 supports GLONASS and GPS identically to the SGGP.18.4.A.02, with the addition of Galileo support. Frequency coverage for GLONASS and GPS applications remains fully compatible.

Q: Are there differences in antenna gain between the two parts?

A: The SGGP.18.4.A.08 provides higher gain values (2.86dBi, 3.04dBi) compared to the SGGP.18.4.A.02 (0.26dBic, 1.25dBic). This represents improved performance in the substitute part.

Q: What is the MSL rating, and does it differ between these parts?

A: Both parts carry MSL 3 rating with 168-hour moisture sensitivity limits. Handling and storage requirements are identical.

Q: Why is the original part obsolete?

A: The SGGP.18.4.A.02 has been discontinued by the manufacturer. The SGGP.18.4.A.08 represents the active production alternative within the same product family (Base Product Number SGGP.18).