Equivalent & Substitute Parts for A10204-1

Part Overview

The A10204-1 is a 1.575GHz chip RF antenna manufactured by Antenova, designed for multi-constellation GNSS applications including Beidou, Galileo, GLONASS, and GPS. This component operates within the L1 navigation band (1.559GHz ~ 1.609GHz) and delivers 0.5dBi gain with 1.9 VSWR performance. The product is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible GNSS reception capabilities.

Substiute Parts

A10204-1

AntenovaIn Stock: 737A10204-1 Datasheet

Current PartRFQ

APAKN0904-S1575-T

Abracon LLCIn Stock: 1145APAKN0904-S1575-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A10204-1 is determined by the following critical parameters:

• Center Frequency: 1.575GHz (L1 GNSS band)
• Frequency Range Coverage: Must encompass or align with 1.559GHz ~ 1.609GHz
• Antenna Type: Chip or equivalent compact form factor
• Gain: 0.5dBi nominal performance
• Return Loss: -10dB or better
• Mounting Type: Surface Mount
• RF Family/Standard: Navigation (GNSS/GPS)
• Compliance: RoHS and REACH requirements

The APAKN0904-S1575-T qualifies as a substitute based on matching center frequency, gain specification, return loss performance, surface mount configuration, and navigation band classification. While the substitute employs a ceramic patch antenna type rather than chip construction, both designs operate within the same electrical performance envelope for L1 GNSS reception.

Parameter Comparison

Engineering Selection Recommendations

The APAKN0904-S1575-T is an active substitute for the obsolete A10204-1. Both components meet identical electrical performance specifications at 1.575GHz center frequency with 0.5dBi gain and -10dB return loss. The substitute maintains RoHS and REACH compliance, with ROHS3 certification providing enhanced regulatory coverage. The primary design consideration is the 0.031" (0.80mm) height differential; the substitute's increased profile requires verification against PCB layout constraints and enclosure clearances. Frequency range narrowing in the substitute (1.574GHz ~ 1.576GHz versus 1.559GHz ~ 1.609GHz) remains within L1 GNSS operational bands and does not impact standard GPS/GNSS receiver performance. Active product status ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the APAKN0904-S1575-T directly replace the A10204-1 in existing designs?

A: Electrical substitution is valid based on matching center frequency, gain, and return loss specifications. Physical substitution requires PCB layout review due to the 0.80mm height increase. Footprint compatibility must be confirmed with the substitute's ceramic patch antenna dimensions.

Q: Why does the substitute have a narrower frequency range?

A: The APAKN0904-S1575-T operates within 1.574GHz ~ 1.576GHz, which is a subset of the L1 GNSS band. This range covers standard GPS L1 (1.575GHz) and Galileo E1 (1.575GHz) frequencies. The narrower specification reflects the ceramic patch design optimization for primary GNSS constellations rather than extended band coverage.

Q: Are there compliance differences between the two parts?

A: Both parts are RoHS compliant and REACH unaffected. The substitute carries ROHS3 certification, which represents current RoHS Directive compliance. Both maintain MSL 1 (unlimited moisture sensitivity level) ratings.

Q: What is the impact of antenna type change from chip to ceramic patch?

A: Both antenna types are surface mount GNSS receivers operating at identical electrical specifications. The ceramic patch design may offer different radiation patterns and ground plane coupling characteristics. System-level RF performance validation is recommended for critical applications.

Q: Is the substitute available in the same packaging format?

A: The A10204-1 uses solder termination with unspecified packaging. The APAKN0904-S1575-T is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Packaging format change does not affect component electrical performance or PCB integration.