MM2-LV-T-U Equivalent & Substitute Parts

Part Overview

The MM2-LV-T-U is a General ISM < 1GHz transceiver module manufactured by FreeWave Technologies, operating in the 902MHz ~ 928MHz frequency band. This module integrates RF transmission and reception capabilities with an integrated chip chassis mount antenna and serial TTL interface. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance, redesign, and procurement planning.

Substiute Parts

MM2-LV-T-U

FreeWave TechnologiesIn Stock: 1039MM2-LV-T-U Datasheet

Current PartRFQ

MM3-T

FreeWave TechnologiesIn Stock: 923MM3-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MM3-T is identified as a manufacturer-recommended substitute for the MM2-LV-T-U. Substitution eligibility is determined by the following critical parameters:

• Frequency Range: Both operate within 902MHz ~ 928MHz ISM band
• Modulation Scheme: Both employ GFSK modulation
• Sensitivity: Both achieve -108dBm receiver sensitivity
• Serial Interface: Both provide Serial TTL interface
• Mounting Configuration: Both use Chassis Mount
• Operating Temperature Range: Both support -40°C ~ 85°C
• Module Package Type: Both are module-based RF transceivers

Parameter Comparison

Engineering Selection Recommendations

The MM3-T is the manufacturer-designated substitute for the MM2-LV-T-U. Both modules maintain identical RF performance characteristics within the 902MHz ~ 928MHz ISM band with GFSK modulation and -108dBm sensitivity.

Key design considerations for substitution:

• Supply Voltage: The MM3-T requires 4.75V ~ 5.25V compared to the MM2-LV-T-U's 4.6V. Power supply circuitry must be redesigned to accommodate this higher voltage requirement.
• Current Consumption: The MM3-T demonstrates reduced current draw in both receive (90mA vs. 125mA) and transmit (855mA vs. 1.175A) modes, resulting in improved power efficiency.
• Antenna Configuration: The MM2-LV-T-U features an integrated chip antenna, while the MM3-T requires external antenna integration. System design must account for antenna selection and impedance matching.
• Product Status: The MM3-T is actively manufactured, ensuring long-term availability and supply chain continuity compared to the obsolete MM2-LV-T-U.

Both modules maintain identical operating temperature range (-40°C ~ 85°C), chassis mount configuration, and Serial TTL interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MM3-T directly replace the MM2-LV-T-U without design modifications?

A: The MM3-T is functionally compatible for RF performance but requires design modifications. The primary differences are supply voltage (4.6V vs. 4.75V ~ 5.25V) and antenna configuration (integrated vs. external). Power supply circuitry and antenna integration must be redesigned.

Q: What are the RF performance differences between these modules?

A: Both modules operate identically within the 902MHz ~ 928MHz frequency band with GFSK modulation and -108dBm sensitivity. The MM3-T supports dual data rates (115.2kbps and 153.6kbps) compared to the MM2-LV-T-U's single 153.6kbps rate.

Q: Does the MM3-T's lower current consumption affect RF performance?

A: No. The reduced current consumption (90mA receive, 855mA transmit) reflects improved power efficiency in the MM3-T design while maintaining identical RF sensitivity and modulation characteristics.

Q: What antenna considerations apply to the MM3-T substitution?

A: The MM2-LV-T-U integrates a chip antenna, while the MM3-T requires external antenna selection. System design must include appropriate antenna matching and impedance tuning for the 902MHz ~ 928MHz band.

Q: Are both modules RoHS compliant?

A: No. Both the MM2-LV-T-U and MM3-T are RoHS non-compliant. Regulatory compliance requirements must be evaluated independently for your application.

Q: What is the supply voltage compatibility range for the MM3-T?

A: The MM3-T operates within 4.75V ~ 5.25V. Power supply design must maintain this voltage window to ensure proper module operation.