B39321R2704U310 Equivalent & Substitute Parts

Part Overview

The B39321R2704U310 is a 315MHz Surface Acoustic Wave (SAW) filter manufactured by Qualcomm for RF front-end applications. This component operates as a general-purpose RF filter in an 8-SMD, No Lead surface mount package with a maximum height of 1.35mm and footprint dimensions of 5.00mm × 5.00mm. The device exhibits an insertion loss of 9.4dB and carries an obsolete product status. Due to its obsolete classification, identifying functionally equivalent active alternatives is essential for ongoing design support and production continuity.

Substiute Parts

B39321R2704U310

Qualcomm (RF front-end (RFFE) filters)In Stock: 2405B39321R2704U310 Datasheet

Current PartRFQ

B39321R0901H110

Qualcomm (RF front-end (RFFE) filters)In Stock: 1092B39321R0901H110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the B39321R2704U310 is determined by the following critical parameters:

Primary Matching Criteria:

• Center frequency of 315MHz
• Surface mount technology with 8-SMD, No Lead package configuration
• Qualcomm B39321 series classification
• RoHS3 compliance and MSL Level 1 rating

Secondary Considerations:

• Insertion loss characteristics (9.4dB for main part)
• Physical dimensions and height constraints
• Packaging format (Cut Tape vs. Tape & Reel)
• Product status (Active vs. Obsolete)

The B39321R0901H110 qualifies as a substitute based on matching center frequency, package type, series designation, and compliance certifications. Differences in physical dimensions, packaging format, and product status are noted but do not preclude substitution when design constraints permit.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The B39321R0901H110 is the designated substitute for the B39321R2704U310. Both components maintain identical center frequency (315MHz) and package classification (8-SMD, No Lead), ensuring functional compatibility at the circuit level. The substitute carries Active product status, providing long-term availability and supply chain stability compared to the obsolete main part.

Compliance Considerations: Both parts satisfy ROHS3 compliance and carry MSL Level 1 ratings, confirming equivalent environmental and regulatory standing. REACH Unaffected status is maintained across both components.

Physical Integration: The B39321R0901H110 features reduced physical dimensions (3.00mm × 3.00mm footprint, 1.00mm maximum height) compared to the main part (5.00mm × 5.00mm footprint, 1.35mm maximum height). This dimensional reduction may provide layout advantages in space-constrained applications but requires PCB footprint redesign. Insertion loss data for the substitute is not provided in available specifications.

Packaging Transition: The main part is supplied in Cut Tape format, while the substitute is available in Tape & Reel format. This packaging difference affects procurement and assembly processes but does not impact electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the B39321R0901H110 directly replace the B39321R2704U310 without circuit modification?

A: Both components operate at 315MHz with identical 8-SMD, No Lead package classification. Functional substitution is supported at the electrical level. However, the reduced physical dimensions of the substitute require PCB footprint redesign and layout adjustment.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The main part's obsolete status indicates discontinued manufacturing and limited future availability. The substitute's active status ensures ongoing production, supply continuity, and manufacturer support for future design iterations.

Q: Are there compliance or environmental differences between these parts?

A: No. Both components are ROHS3 compliant, carry MSL Level 1 ratings, and maintain REACH Unaffected status. Environmental and regulatory requirements are equivalent.

Q: How do the physical dimensions affect substitution?

A: The substitute's smaller footprint (3.00mm × 3.00mm vs. 5.00mm × 5.00mm) and reduced height (1.00mm vs. 1.35mm) require PCB layout modification. Designs with tight spatial constraints may benefit from this reduction, while existing layouts require redesign.

Q: Is insertion loss data available for the substitute part?

A: Insertion loss specifications are not provided for the B39321R0901H110 in available documentation. The main part specifies 9.4dB insertion loss. Detailed electrical characterization should be obtained from the manufacturer for critical applications.

Q: What packaging format differences exist?

A: The main part is supplied in Cut Tape (CT) & Digi-Reel® format, while the substitute uses Tape & Reel (TR) packaging. This affects procurement logistics and assembly line compatibility but does not influence electrical performance.