MTSMC-LAT3-U.R2A-SP Equivalent & Substitute Parts

Part Overview

The MTSMC-LAT3-U.R2A-SP is a Cellular 4G LTE CAT-1 transceiver module manufactured by Multi-Tech Systems Inc., designed for AT&T and T-Mobile networks. This RF TXRX module operates across 700MHz, 850MHz, 1.7GHz, and 1.9GHz frequency bands with a data rate of 10Mbps and USB serial interface connectivity. The module features U.FL through-hole antenna connection and operates across an industrial temperature range of -40°C to 85°C.

The MTSMC-LAT3-U.R2A-SP is classified as Obsolete. Identification of equivalent and substitute parts is necessary to maintain system functionality, ensure continued supply chain availability, and support legacy device maintenance and redesign initiatives.

Substiute Parts

MTSMC-LAT3-U.R2A-SP

Multi-Tech Systems Inc.In Stock: 1066MTSMC-LAT3-U.R2A-SP Datasheet

Current PartRFQ

MTSMC-L1G2D-U-SP

Multi-Tech Systems Inc.In Stock: 1161MTSMC-L1G2D-U-SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MTSMC-LAT3-U.R2A-SP is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Manufacturer: Multi-Tech Systems Inc. (same manufacturer ensures firmware and driver compatibility)
• Series: SocketModem® Cell (maintains software stack compatibility)
• Mounting Type: Through Hole (ensures PCB integration compatibility)
• Antenna Type: U.FL (maintains RF connector compatibility)
• Operating Temperature Range: -40°C ~ 85°C (ensures thermal envelope compatibility)
• RoHS Status: ROHS3 Compliant (maintains regulatory compliance)
• Moisture Sensitivity Level: 1 (Unlimited) (ensures handling and storage compatibility)

Functional Compatibility Parameters:

• RF Family/Standard: Cellular (maintains RF domain compatibility)
• Serial Interfaces: USB (maintains communication protocol compatibility)
• Voltage Supply Range: Must encompass or be compatible with 3.3V ~ 5V
• Data Rate: 10Mbps (minimum performance requirement)

The MTSMC-L1G2D-U-SP qualifies as a substitute part because it maintains all mandatory compatibility parameters while extending functional capabilities through additional frequency band support and protocol options.

Parameter Comparison

Engineering Selection Recommendations

The MTSMC-L1G2D-U-SP is the manufacturer-recommended substitute for the obsolete MTSMC-LAT3-U.R2A-SP. Both modules are manufactured by Multi-Tech Systems Inc. within the SocketModem® Cell series and maintain identical compliance certifications (ROHS3 Compliant, MSL 1).

Product Status Consideration: The MTSMC-LAT3-U.R2A-SP is classified as Obsolete, while the MTSMC-L1G2D-U-SP maintains Active product status. This status differential ensures long-term availability, ongoing manufacturer support, and continued supply chain access for the substitute part.

Regulatory Compliance: Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring equivalent environmental and regulatory compatibility.

Functional Enhancement: The MTSMC-L1G2D-U-SP extends the frequency band coverage to include 800MHz, 900MHz, 1.8GHz, 2.1GHz, and 2.6GHz, and adds GNSS/GPS protocol support alongside LTE. These additions provide enhanced geographic coverage and positioning capabilities without compromising the core 4G LTE CAT-1 functionality required by the original design.

Interface Compatibility: The substitute part adds UART serial interface capability while maintaining USB compatibility, providing additional integration flexibility for legacy and new designs.

Voltage Supply Consideration: The substitute part specifies 5V supply voltage, which falls within the upper range of the original part's 3.3V ~ 5V specification. System designs operating at 3.3V require voltage regulation or level shifting to accommodate this substitute.

Frequently Asked Questions (FAQ)

Q: Can the MTSMC-L1G2D-U-SP directly replace the MTSMC-LAT3-U.R2A-SP in existing designs?

A: Direct replacement is possible for designs operating at 5V supply voltage. Designs utilizing 3.3V supply voltage require additional voltage regulation or level shifting circuitry to accommodate the substitute part's 5V requirement. All other mechanical and electrical interfaces are compatible.

Q: What are the key differences between these two modules?

A: The primary differences are product status (Obsolete vs. Active), frequency band coverage (4 bands vs. 9 bands), protocol support (4G LTE CAT-1 only vs. GNSS/GPS/LTE), serial interface options (USB only vs. UART and USB), and voltage supply specification (3.3V ~ 5V vs. 5V). Functional data rate and operating temperature range remain identical.

Q: Are the physical packages compatible?

A: Both modules use through-hole mounting with U.FL antenna connectors. The substitute part specifies a 64-DIP Module with 45 leads, while the original part specifies a generic Module package. PCB layout verification is required to confirm pin-to-pin compatibility and footprint alignment.

Q: Does the substitute part support the same frequency bands as the original?

A: The substitute part supports all frequency bands of the original (700MHz, 850MHz, 1.7GHz, 1.9GHz) plus additional bands (800MHz, 900MHz, 1.8GHz, 2.1GHz, 2.6GHz). This extended coverage provides backward compatibility with existing network deployments while enabling access to additional cellular networks.

Q: What is the impact of the additional GNSS/GPS capability?

A: The GNSS/GPS protocol support in the substitute part is an additional feature that does not interfere with existing 4G LTE CAT-1 functionality. Designs that do not require positioning capability can operate the module in LTE-only mode without modification.

Q: Are firmware and driver updates required for substitution?

A: Firmware and driver compatibility must be verified with Multi-Tech Systems Inc. documentation and support resources. Both modules belong to the same SocketModem® Cell series, which typically shares common software stacks, but specific version requirements depend on the host system implementation.

Q: What is the significance of the packaging change from Bag to Bulk?

A: The packaging change from Bag to Bulk indicates different distribution and handling specifications. This does not affect the electrical or mechanical performance of the module but may impact procurement, storage, and handling procedures.