RF3319E Equivalent & Substitute Parts

Part Overview

The RF3319E is a 868.95MHz Surface Acoustic Wave (SAW) filter manufactured by Murata Electronics, designed for remote control applications. This component features a 900kHz bandwidth and 2.4dB insertion loss in a compact 6-SMD, No Lead package measuring 3.00mm x 3.00mm. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

RF3319E

Murata ElectronicsIn Stock: 801RF3319E Datasheet

Current PartRFQ

B39871B3941H110

Qualcomm (RF front-end (RFFE) filters)In Stock: 848B39871B3941H110 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RF3319E is determined by the following critical parameters:

• Frequency - Center: Must match 868.95MHz exactly for RF tuning compatibility
• Package / Case: Must be 6-SMD, No Lead to ensure PCB footprint compatibility
• Size / Dimension: Must be 3.00mm x 3.00mm for mechanical fit
• Mounting Type: Must be Surface Mount for assembly process compatibility
• RoHS Status: Must maintain ROHS3 compliance for regulatory alignment

The B39871B3941H110 from Qualcomm meets all mandatory substitution criteria. While insertion loss differs (3.2dB vs. 2.4dB), this represents a measurable but acceptable performance variation within the remote control application domain. The substitute maintains identical frequency, package geometry, and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The B39871B3941H110 is the qualified substitute for the obsolete RF3319E. Selection is based on the following factors:

• Compliance Alignment: Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental handling consistency
• Product Status: The substitute is active and in production, providing supply continuity for the obsolete RF3319E
• Certification: The B39871B3941H110 carries AEC-Q200 qualification, indicating automotive-grade reliability standards
• Mechanical Compatibility: Identical package footprint and reduced height (1.10mm vs. 1.38mm) provide direct PCB layout compatibility with improved thermal performance
• Electrical Performance: The 0.8dB insertion loss increase (2.4dB to 3.2dB) is within acceptable tolerance for remote control RF filtering applications

Frequently Asked Questions (FAQ)

Q: Can the B39871B3941H110 be used as a direct replacement for the RF3319E?

A: Yes. Both parts share identical center frequency (868.95MHz), package type (6-SMD, No Lead), and physical dimensions (3.00mm x 3.00mm). The insertion loss difference of 0.8dB is a measurable performance variation that must be evaluated within your specific circuit design parameters.

Q: What is the significance of the insertion loss difference?

A: Insertion loss represents signal attenuation through the filter. The RF3319E specifies 2.4dB while the B39871B3941H110 specifies 3.2dB. This 0.8dB increase may require circuit gain adjustment or signal level verification in your remote control receiver design.

Q: Are there packaging differences between these parts?

A: The RF3319E uses standard tape and reel packaging, while the B39871B3941H110 is specified as Tape & Reel (TR). Both are surface mount compatible. The B39871B3941H110 has a lower maximum height (1.10mm vs. 1.38mm), which may improve PCB assembly clearance.

Q: What compliance certifications apply to the substitute?

A: The B39871B3941H110 is ROHS3 compliant, REACH unaffected, and carries AEC-Q200 automotive-grade qualification. These certifications exceed the RF3319E specifications and ensure regulatory alignment for current manufacturing standards.

Q: Is the substitute available in inventory?

A: The B39871B3941H110 is listed as active product status with 756 pieces in stock, providing immediate availability compared to the obsolete RF3319E.