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

Part Overview

The MM2-MR-R 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 integrated trace chassis mount antenna configuration and operates across industrial temperature ranges. The product is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

MM2-MR-R

FreeWave TechnologiesIn Stock: 1151MM2-MR-R Datasheet

Current PartRFQ

MM3-MR-R

FreeWave TechnologiesIn Stock: 785MM3-MR-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MM2-MR-R is determined by the following critical parameters:

• RF frequency band operation (902MHz ~ 928MHz ISM band)
• Modulation scheme (GFSK)
• Data rate capability (153.6kbps)
• Serial interface protocol (Serial TTL)
• Antenna configuration (Integrated, Trace)
• Mounting interface (Chassis Mount)
• Supply voltage compatibility (6.5V ~ 30V range)
• Operating temperature range (-40°C ~ 85°C)

The MM3-MR-R qualifies as a manufacturer-recommended substitute based on identical RF family classification, matching frequency band operation, compatible modulation and data rate specifications, and equivalent serial interface and antenna integration. Both modules maintain the same chassis mount configuration and operate within overlapping environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

The MM3-MR-R is the manufacturer-recommended substitute for the obsolete MM2-MR-R. Selection between these parts should be based on the following factors:

Product Status: The MM2-MR-R is classified as obsolete with limited inventory availability (1061 pcs). The MM3-MR-R maintains active product status with established supply chain support (730 pcs in stock), ensuring long-term availability for production and support applications.

Compliance Considerations: Both modules maintain identical RoHS non-compliance status. No compliance advantage exists between the two parts in this regard.

Moisture Sensitivity: The MM3-MR-R specifies Moisture Sensitivity Level 1 (Unlimited), indicating superior moisture handling characteristics compared to the MM2-MR-R classification of Not Applicable.

Functional Equivalence: Complete parameter alignment across RF specifications, modulation, data rate, serial interface, antenna integration, and operating environment confirms direct functional substitution capability.

Frequently Asked Questions (FAQ)

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

A: Yes. The MM3-MR-R maintains identical RF frequency band operation, modulation scheme, data rate, serial interface protocol, antenna configuration, and mounting interface. No design modifications are required for direct substitution.

Q: What is the primary reason to transition from MM2-MR-R to MM3-MR-R?

A: The MM2-MR-R is obsolete with finite inventory. The MM3-MR-R is an active product with established supply chain support, ensuring component availability for current and future production requirements.

Q: Are there any electrical parameter differences between these modules?

A: The provided specifications indicate identical electrical performance across RF characteristics, modulation, data rate, serial interface, supply voltage range, and operating temperature. No electrical performance degradation occurs with substitution.

Q: Do both modules use the same mounting configuration?

A: Yes. Both the MM2-MR-R and MM3-MR-R employ chassis mount configuration with integrated trace antenna, maintaining mechanical compatibility in existing installations.

Q: What is the significance of the Moisture Sensitivity Level difference?

A: The MM3-MR-R specifies MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. This represents an improvement over the MM2-MR-R classification and reduces handling constraints in manufacturing environments.

Q: Are there any RoHS compliance considerations for this substitution?

A: Both modules are RoHS non-compliant. No compliance status change occurs with substitution. Applications requiring RoHS compliance must address this requirement through alternative component selection outside this substitution group.