B39421R714U310 Equivalent & Substitute Parts

Part Overview

The B39421R714U310 is a 423.22 MHz Surface Acoustic Wave (SAW) filter manufactured by Qualcomm, designed for RF front-end (RFFE) applications. This component features a 1.2 dB insertion loss and is housed in an 8-SMD, No Lead package with a maximum height of 1.35 mm. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this frequency band is required.

Substiute Parts

B39421R714U310

Qualcomm (RF front-end (RFFE) filters)In Stock: 716B39421R714U310 Datasheet

Current PartRFQ

ASR423.22E-T

Abracon LLCIn Stock: 1205ASR423.22E-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B39421R714U310 is determined by the following critical parameters:

Frequency Matching: The substitute part must operate at 423.22 MHz to maintain RF circuit tuning and filter response characteristics.

Package Compatibility: The 8-SMD, No Lead package with dimensions of 5.00 mm x 5.00 mm and maximum height of 1.35 mm ensures mechanical fit within existing PCB layouts and assembly processes.

Mounting Technology: Surface mount technology is required for compatibility with automated assembly equipment and board-level integration.

Compliance Standards: RoHS3 compliance and MSL Level 1 rating ensure environmental and moisture handling compatibility with current manufacturing and storage practices.

Device Type: SAW filter or SAW resonator technology at this frequency band maintains the RF filtering function required in the application circuit.

The ASR423.22E-T from Abracon LLC meets all these substitution criteria and is classified as an active product, providing long-term availability for component procurement.

Parameter Comparison

Engineering Selection Recommendations

The ASR423.22E-T is the qualified substitute for the obsolete B39421R714U310 based on the following engineering criteria:

Frequency Alignment: Both components operate at 423.22 MHz, ensuring direct functional equivalence in RF filtering applications.

Mechanical Compatibility: Identical package dimensions (5.00 mm x 5.00 mm) and height (1.35 mm) permit direct PCB layout reuse without redesign.

Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying current environmental and manufacturing standards.

Product Availability: The ASR423.22E-T is classified as active, providing assured long-term supply compared to the obsolete status of the original part.

Packaging Format: The Abracon part is supplied in Tape & Reel format, supporting high-volume automated assembly processes.

Selection of the ASR423.22E-T eliminates obsolescence risk while maintaining electrical and mechanical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the ASR423.22E-T be used as a direct replacement for the B39421R714U310?

A: Yes. Both components share identical center frequency (423.22 MHz), package type (8-SMD, No Lead), and physical dimensions (5.00 mm x 5.00 mm x 1.35 mm maximum height). Surface mount compatibility and compliance certifications are equivalent.

Q: What is the primary reason for substitution?

A: The B39421R714U310 is classified as obsolete. The ASR423.22E-T is an active product from Abracon LLC, ensuring continued availability for procurement and supply chain stability.

Q: Are there differences in electrical performance between these parts?

A: The B39421R714U310 specifies 1.2 dB insertion loss. The ASR423.22E-T insertion loss specification is not provided in the available data. Both operate at 423.22 MHz with identical package and mounting specifications.

Q: What is the operating temperature range for the substitute part?

A: The ASR423.22E-T operates across -40°C to 85°C. The operating temperature range for the original B39421R714U310 is not specified in the available documentation.

Q: Are both parts RoHS compliant?

A: Yes. Both the B39421R714U310 and ASR423.22E-T are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: What packaging formats are available?

A: The ASR423.22E-T is supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly. The original part packaging format is not specified.

Q: Are there any mechanical constraints for PCB integration?

A: No. Identical dimensions and surface mount package type ensure direct PCB footprint compatibility without layout modifications.