MM2-MR-R-U RF Transceiver Module Equivalent & Substitute Parts

Part Overview

The MM2-MR-R-U is a General ISM < 1GHz transceiver module manufactured by FreeWave Technologies, designed for integrated RF communication in the 902MHz to 928MHz frequency band. This module features an integrated trace chassis mount antenna and operates across industrial temperature ranges. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MM2-MR-R-U

FreeWave TechnologiesIn Stock: 869MM2-MR-R-U Datasheet

Current PartRFQ

MM3-MR-R

FreeWave TechnologiesIn Stock: 785MM3-MR-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM2-MR-R-U is based on the following critical parameters that must be maintained or exceeded:

• Frequency band compatibility: 902MHz ~ 928MHz ISM band operation
• Modulation scheme: GFSK modulation support
• Data rate capability: 153.6kbps minimum
• Receiver sensitivity: -107dBm or better
• Supply voltage range: 6.5V ~ 30V compatibility
• Current consumption: Receiving 100mA, Transmitting 900mA
• Antenna configuration: Integrated trace antenna
• Mounting interface: Chassis mount form factor
• Temperature range: -40°C ~ 85°C operational capability

The MM3-MR-R from FreeWave Technologies qualifies as a direct substitute based on these parameters. Both modules operate within the same ISM frequency band, support identical modulation and data rate specifications, and maintain compatible electrical and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MM3-MR-R is identified as the manufacturer-recommended substitute for the obsolete MM2-MR-R-U. Both components are manufactured by FreeWave Technologies and share identical RoHS non-compliance status. The MM3-MR-R carries active product status, ensuring ongoing availability and manufacturer support, whereas the MM2-MR-R-U is obsolete and subject to inventory depletion.

The transition from MM2-MR-R-U to MM3-MR-R is supported by FreeWave Technologies as the official upgrade path. Current inventory of the MM2-MR-R-U totals 794 pieces, while the MM3-MR-R maintains 730 pieces in stock. Both modules are classified under HTSUS code 8517.62.0090 and carry export control classification under ECCN regulations.

Frequently Asked Questions (FAQ)

Q: Can the MM3-MR-R directly replace the MM2-MR-R-U in existing designs?

A: The MM3-MR-R is the manufacturer-recommended substitute. Both modules are ISM < 1GHz transceiver modules from FreeWave Technologies with module-level packaging. Verification of electrical and mechanical compatibility with your specific application is required based on detailed datasheets.

Q: What is the primary reason for substitution?

A: The MM2-MR-R-U is classified as obsolete. The MM3-MR-R is the active product offering from FreeWave Technologies for this application category.

Q: Are there differences in RoHS compliance between these parts?

A: Both the MM2-MR-R-U and MM3-MR-R are RoHS non-compliant. No compliance advantage exists between these options.

Q: What is the difference in Moisture Sensitivity Level?

A: The MM2-MR-R-U lists MSL as Not Applicable, while the MM3-MR-R specifies MSL 1 (Unlimited). This indicates the MM3-MR-R has no moisture sensitivity restrictions during storage and handling.

Q: Are both parts available for immediate procurement?

A: Yes. The MM2-MR-R-U has 794 pieces in stock, and the MM3-MR-R has 730 pieces in stock as new original inventory.