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MM2-LV-T-LF Equivalent & Substitute Parts
Part Overview
The MM2-LV-T-LF is a General ISM < 1GHz Transceiver Module manufactured by FreeWave Technologies, operating in the 902MHz ~ 928MHz frequency band. This module integrates RF transceiver functionality with a chip chassis mount antenna and provides serial TTL interfaces for system integration. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | MM2-LV-T-LF |
|---|---|
| Manufacturer | FreeWave Technologies |
| Series | MM2 |
| Product Status | Obsolete |
| RF Family/Standard | General ISM < 1GHz |
| Frequency Range | 902MHz ~ 928MHz |
| Modulation | GFSK |
| Data Rate | 153.6kbps |
| Sensitivity | -108dBm |
| Serial Interfaces | Serial TTL |
| Antenna Type | Integrated, Chip |
| Voltage Supply | 4.6V |
| Current - Receiving | 125mA |
| Current - Transmitting | 1.175A |
| Mounting Type | Chassis Mount |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | Module |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution of the MM2-LV-T-LF is determined by the following critical parameters:
- Frequency Compatibility: Operating range must encompass 902MHz ~ 928MHz ISM band
- Modulation Type: GFSK modulation support required
- Serial Interface: Serial TTL interface requirement
- Mounting Configuration: Chassis mount form factor
- Operating Temperature Range: -40°C ~ 85°C operational envelope
- Sensitivity Performance: -108dBm receiver sensitivity
- Manufacturer Continuity: FreeWave Technologies product line
The MM3-T qualifies as a manufacturer-recommended substitute based on identical frequency range, modulation scheme, serial interface type, mounting configuration, temperature range, and sensitivity specification. Both modules operate within the General ISM < 1GHz standard and maintain compatibility with existing system architectures.
Parameter Comparison
| Parameter | MM2-LV-T-LF | MM3-T (Substitute) | Compatibility Notes |
|---|---|---|---|
| Manufacturer | FreeWave Technologies | FreeWave Technologies | Same manufacturer |
| Frequency Range | 902MHz ~ 928MHz | 902MHz ~ 928MHz | Identical |
| Modulation | GFSK | GFSK | Identical |
| Data Rate | 153.6kbps | 115.2kbps, 153.6kbps | MM3-T supports both rates; 153.6kbps common |
| Sensitivity | -108dBm | -108dBm | Identical |
| Serial Interfaces | Serial TTL | Serial TTL | Identical |
| Mounting Type | Chassis Mount | Chassis Mount | Identical |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical |
| Voltage Supply | 4.6V | 4.75V ~ 5.25V | Different supply voltage; design review required |
| Current - Receiving | 125mA | 90mA | MM3-T lower consumption |
| Current - Transmitting | 1.175A | 855mA | MM3-T lower consumption |
| Antenna Type | Integrated, Chip | Antenna Not Included | Different antenna configuration |
| Product Status | Obsolete | Active | MM3-T actively manufactured |
| RoHS Status | RoHS non-compliant | RoHS non-compliant | Both non-compliant |
Engineering Selection Recommendations
The MM3-T is the manufacturer-recommended substitute for the obsolete MM2-LV-T-LF. Both modules maintain identical RF performance specifications including frequency range, modulation type, data rate compatibility, and receiver sensitivity across the 902MHz ~ 928MHz ISM band.
Key considerations for substitution:
Voltage Supply Differential: The MM2-LV-T-LF operates at 4.6V while the MM3-T requires 4.75V ~ 5.25V. System power supply architecture must be evaluated to accommodate this voltage requirement change.
Current Consumption: The MM3-T demonstrates reduced current draw in both receive (90mA vs. 125mA) and transmit (855mA vs. 1.175A) modes, resulting in lower power dissipation and improved thermal characteristics.
Antenna Configuration: The MM2-LV-T-LF includes an integrated chip antenna, while the MM3-T requires external antenna integration. System mechanical design must accommodate external antenna placement and routing.
Product Status: The MM3-T is actively manufactured by FreeWave Technologies, ensuring long-term availability and supply chain continuity compared to the obsolete MM2-LV-T-LF.
Compliance: Both modules maintain identical RoHS non-compliant status and ECCN classification (5A002A FWT), with no regulatory impact from substitution.
Frequently Asked Questions (FAQ)
Q: Can the MM3-T directly replace the MM2-LV-T-LF without design modifications?
A: The MM3-T is functionally compatible for RF performance but requires design review in three areas: power supply voltage adjustment from 4.6V to 4.75V ~ 5.25V, external antenna integration (the MM2-LV-T-LF includes integrated antenna), and PCB layout modifications for the different module form factor.
Q: What are the primary electrical differences between these modules?
A: The MM3-T operates at higher supply voltage (4.75V ~ 5.25V vs. 4.6V) and draws lower current in both receive and transmit modes. RF performance parameters including frequency range, modulation, data rate, and sensitivity remain identical.
Q: Is the MM3-T suitable for applications requiring the integrated antenna of the MM2-LV-T-LF?
A: No. The MM3-T does not include an integrated antenna and requires external antenna design and integration. Applications dependent on the integrated chip antenna configuration must evaluate alternative solutions or implement external antenna subsystems.
Q: Are there any compliance or certification differences?
A: Both modules share identical ECCN classification (5A002A FWT), HTSUS code (8517.62.0090), and RoHS non-compliant status. No regulatory differences exist between the two modules.
Q: What is the inventory status for these modules?
A: The MM2-LV-T-LF (682 Pcs) is available as new original stock but classified as obsolete. The MM3-T (907 Pcs) is available as new original stock with active product status, ensuring continued availability.
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