WS3910-5M-SMA RF Antenna GPS Magnetic Equivalent & Substitute Parts

Part Overview

The WS3910-5M-SMA is an RF antenna designed for GPS magnetic applications, manufactured by PCTEL, Inc. This part is classified as obsolete, indicating it is no longer in active production. Due to its obsolete status, sourcing original units may present supply chain challenges. The substitute part identified maintains functional compatibility within the GPS/GNSS frequency band while offering active product status and continued manufacturer support.

Substiute Parts

WS3910-5M-SMA

PCTEL, Inc.In Stock: 1009WS3910-5M-SMA Datasheet

Current PartRFQ

3917D-5M-SMA

PCTEL, Inc.In Stock: 9143917D-5M-SMA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WS3910-5M-SMA is determined by the following critical parameters:

Frequency Compatibility: The substitute part operates within the GPS/GNSS frequency band (1.575GHz center frequency, 1.565GHz ~ 1.585GHz range), which aligns with the navigation RF standard required for GPS applications.

Connector Type: Both the main part and substitute maintain SMA Male termination, ensuring mechanical and electrical compatibility with existing RF interfaces.

Mounting Configuration: The magnetic mounting type is preserved in the substitute part, allowing installation in identical mechanical configurations.

Cable Specification: The 5-meter cable length is maintained across both parts, supporting equivalent deployment scenarios.

Regulatory Compliance: Both parts share identical ECCN (7A994) and HTSUS (8529.10.4040) classifications, confirming equivalent export control and tariff treatment.

Product Status Distinction: The substitute part (3917D-5M-SMA) holds active product status, providing ongoing manufacturer support and supply availability, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The 3917D-5M-SMA is the designated manufacturer substitute for the WS3910-5M-SMA. Both parts are manufactured by PCTEL, Inc., and share identical regulatory classifications (ECCN 7A994, HTSUS 8529.10.4040).

Product Status Consideration: The WS3910-5M-SMA is classified as obsolete, indicating end-of-life status. The 3917D-5M-SMA maintains active product status, ensuring continued availability and manufacturer technical support.

Frequency Band Alignment: The substitute part operates at 1.575GHz (GPS L1 frequency) within the specified range of 1.565GHz ~ 1.585GHz, which is the standard GPS navigation band. This frequency alignment ensures functional compatibility with GPS/GNSS receiver systems.

Mechanical and Electrical Compatibility: The SMA Male connector and magnetic mounting configuration are identical between both parts, allowing direct substitution in existing installations without mechanical modification.

Regulatory Compliance: Both parts carry identical export control and tariff classifications, confirming equivalent compliance status for international trade and procurement purposes.

Frequently Asked Questions (FAQ)

Q: Can the 3917D-5M-SMA directly replace the WS3910-5M-SMA in existing installations?

A: Yes. Both parts share identical SMA Male termination, magnetic mounting type, and 5-meter cable length. The frequency band (GPS/GNSS) and regulatory classifications are equivalent, supporting direct substitution without mechanical or electrical modification.

Q: What is the primary reason for substitution?

A: The WS3910-5M-SMA is classified as obsolete, indicating discontinued production. The 3917D-5M-SMA is the active equivalent from the same manufacturer, providing continued supply and support.

Q: Are the regulatory classifications identical?

A: Yes. Both parts carry ECCN 7A994 and HTSUS 8529.10.4040 classifications, confirming equivalent export control and tariff treatment.

Q: What frequency does the substitute part operate at?

A: The 3917D-5M-SMA operates at 1.575GHz (GPS L1 center frequency) with a range of 1.565GHz ~ 1.585GHz, which is the standard GPS navigation band.

Q: Are there differences in packaging between the two parts?

A: The WS3910-5M-SMA packaging is not specified in available documentation. The 3917D-5M-SMA is supplied in Box packaging. Verify packaging requirements with your procurement specifications.

Q: What is the ingress protection rating of the substitute part?

A: The 3917D-5M-SMA is rated IP67, providing protection against dust and temporary immersion in water. The ingress protection rating for the original WS3910-5M-SMA is not specified.

Q: Is the antenna gain specification the same?

A: The gain specification for the WS3910-5M-SMA is not provided in available documentation. The 3917D-5M-SMA specifies gain of -2dBic to 3dBic. Confirm gain requirements with your system design specifications.