RO3101A-1 Equivalent & Substitute Parts

Part Overview

The RO3101A-1 is a 433.92 MHz Surface Acoustic Wave (SAW) resonator manufactured by Murata Electronics, designed for RF applications requiring precise frequency control. This component operates across the industrial temperature range of -40°C to 85°C with a frequency stability of 0.032ppm and an impedance of 1 MOhms. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

RO3101A-1

Murata ElectronicsIn Stock: 934RO3101A-1 Datasheet

Current PartRFQ

B39431R0880H210

Qualcomm (RF front-end (RFFE) filters)In Stock: 2793B39431R0880H210 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RO3101A-1 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Center frequency: 433.92 MHz (exact match required)
• Package type: 4-SMD, No Lead (physical and electrical interface compatibility)
• Mounting type: Surface Mount (PCB assembly compatibility)
• Operating temperature range: -40°C to 85°C (minimum requirement)
• Impedance: 1 MOhms (circuit interface requirement)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)
• Moisture sensitivity: MSL 1 (handling and storage compatibility)

The B39431R0880H210 qualifies as a substitute based on matching all critical parameters. Both components operate at 433.92 MHz, utilize identical 4-SMD No Lead packaging, support the same temperature range, and maintain equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The B39431R0880H210 is suitable as a direct substitute for the RO3101A-1 based on the following engineering criteria:

Compliance and Regulatory Alignment: Both components maintain ROHS3 compliance and identical moisture sensitivity ratings (MSL 1), ensuring compatibility with current manufacturing and environmental standards.

Physical and Electrical Interface Compatibility: Identical package type (4-SMD, No Lead), mounting method (Surface Mount), and dimensional footprint (5.00mm × 3.50mm) enable direct PCB layout compatibility. The height variation of 0.15mm (1.60mm vs. 1.45mm) remains within typical assembly tolerances for surface mount processes.

Frequency and Operating Range: Both components operate at the identical center frequency of 433.92 MHz across the -40°C to 85°C temperature range, meeting the electrical requirements of 433.92 MHz RF applications.

Product Status Advantage: The B39431R0880H210 maintains active product status with documented inventory availability (2704 units), providing supply chain continuity for the obsolete RO3101A-1.

Frequently Asked Questions (FAQ)

Q: Can the B39431R0880H210 be used as a direct replacement for the RO3101A-1 in existing designs?

A: Yes. Both components share identical center frequency (433.92 MHz), package type (4-SMD, No Lead), operating temperature range (-40°C to 85°C), and compliance certifications (ROHS3, MSL 1). The 0.15mm height difference is within standard surface mount assembly tolerances.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching: center frequency (433.92 MHz), package configuration (4-SMD, No Lead), mounting type (Surface Mount), operating temperature range (-40°C to 85°C), impedance (1 MOhms), and compliance certifications (ROHS3, MSL 1).

Q: Are there any electrical performance differences between these components?

A: The RO3101A-1 specifies frequency stability of 0.032ppm and frequency tolerance of ±50kHz. The B39431R0880H210 datasheet does not provide these specifications. Verify that the substitute meets your application's frequency stability and tolerance requirements before implementation.

Q: What is the inventory status of the substitute part?

A: The B39431R0880H210 is classified as active product status with 2704 units available in new original condition, providing reliable supply chain access compared to the obsolete RO3101A-1.

Q: Are there any handling or storage differences between these components?

A: Both components maintain identical moisture sensitivity levels (MSL 1 - Unlimited), indicating equivalent handling, storage, and reflow requirements. No additional precautions are necessary when transitioning between these parts.