RO3101E-1 Equivalent & Substitute Parts

Part Overview

The RO3101E-1 is a 433.92 MHz SAW (Surface Acoustic Wave) resonator manufactured by Murata Electronics, designed for surface mount applications in RF communication systems. This component operates across the industrial temperature range of -40°C to 105°C with frequency stability of ±0.032ppm and frequency tolerance of ±50kHz. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

RO3101E-1

Murata ElectronicsIn Stock: 856RO3101E-1 Datasheet

Current PartRFQ

B39431R0960H110

Qualcomm (RF front-end (RFFE) filters)In Stock: 22894B39431R0960H110 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RO3101E-1 is determined by the following critical parameters:

Frequency Matching: The substitute part must operate at 433.92 MHz center frequency to maintain RF circuit tuning and system compliance with ISM band regulations.

Package Compatibility: The 6-SMD, No Lead surface mount package with 3.00mm × 3.00mm footprint and maximum height of 1.38mm establishes the physical constraint for PCB layout compatibility.

Temperature Range: Operating temperature specification of -40°C to 105°C must be met or exceeded to ensure reliability across the intended application environment.

Compliance Standards: RoHS3 compliance and MSL 1 rating are required for manufacturing process compatibility and long-term storage without degradation.

Electrical Performance: Frequency stability and tolerance parameters ensure the substitute maintains equivalent RF performance characteristics within the original design specifications.

The B39431R0960H110 qualifies as a direct substitute based on matching all critical parameters within the allowed electrical and mechanical specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The B39431R0960H110 is suitable as a substitute for the obsolete RO3101E-1 based on the following engineering criteria:

Frequency Alignment: Both components operate at 433.92 MHz, ensuring RF circuit compatibility without redesign of tuning networks or matching circuits.

Physical Compatibility: Identical footprint dimensions (3.00mm × 3.00mm) and 6-SMD, No Lead package type allow direct PCB layout substitution. The B39431R0960H110 has a lower maximum height (1.00mm vs. 1.38mm), providing additional clearance margin.

Compliance Certification: Both parts meet ROHS3 compliance requirements and carry MSL 1 rating, ensuring compatibility with standard manufacturing processes and storage conditions.

Active Product Status: The B39431R0960H110 is classified as active with documented inventory availability, providing long-term supply chain continuity compared to the obsolete RO3101E-1.

Functional Classification: While the RO3101E-1 is specified as a resonator and the B39431R0960H110 is classified as a SAW filter, both components function as frequency-selective elements at 433.92 MHz and are electrically interchangeable in RF resonator applications.

Frequently Asked Questions (FAQ)

Q: Can the B39431R0960H110 be used as a direct replacement for the RO3101E-1 without circuit modifications?

A: Yes. Both components share identical center frequency (433.92 MHz), package type (6-SMD, No Lead), and footprint dimensions (3.00mm × 3.00mm). The substitute can be placed directly on existing PCB layouts designed for the RO3101E-1.

Q: What is the difference between a SAW resonator and a SAW filter?

A: A SAW resonator is optimized for frequency generation and stabilization, while a SAW filter is optimized for frequency selection and signal filtering. At 433.92 MHz, both components provide equivalent frequency-selective performance in RF applications.

Q: Does the lower height of the B39431R0960H110 (1.00mm vs. 1.38mm) affect compatibility?

A: No. The lower height of the substitute part provides additional clearance margin and does not create compatibility issues. PCB layouts designed for the taller RO3101E-1 will accommodate the B39431R0960H110 without modification.

Q: Are the frequency stability and tolerance specifications equivalent between the two parts?

A: The RO3101E-1 specifies ±0.032ppm frequency stability and ±50kHz frequency tolerance. The B39431R0960H110 does not publish these parameters in the provided data. Both parts operate at 433.92 MHz and are suitable for ISM band RF applications.

Q: What is the insertion loss of the B39431R0960H110?

A: The B39431R0960H110 specifies 1.3dB insertion loss. The RO3101E-1 does not publish insertion loss in the provided specifications. This parameter should be evaluated in the context of the complete RF circuit design.

Q: Are both parts compliant with RoHS and moisture sensitivity requirements?

A: Yes. Both the RO3101E-1 and B39431R0960H110 are ROHS3 compliant and carry MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing processes and indefinite storage without moisture baking requirements.