MTSMC-LAT3-U.R2A Equivalent & Substitute Parts

Part Overview

The MTSMC-LAT3-U.R2A is a Cellular 4G LTE CAT-1 transceiver module manufactured by Multi-Tech Systems Inc. as part of the SocketModem® Cell series. This RF TXRX module operates across 700MHz, 850MHz, 1.7GHz, and 1.9GHz frequency bands and supports AT&T and T-Mobile networks. The module features U.FL through-hole antenna connectivity and USB serial interface capability.

The MTSMC-LAT3-U.R2A is classified as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, ensure design continuity, and maintain supply chain availability for existing deployments.

Substiute Parts

MTSMC-LAT3-U.R2A

Multi-Tech Systems Inc.In Stock: 1056MTSMC-LAT3-U.R2A Datasheet

Current PartRFQ

MTSMC-L1G2D-U

Multi-Tech Systems Inc.In Stock: 872MTSMC-L1G2D-U Datasheet

MFR RecommendedRFQ

MTSMC-LAT3-U.R4

Multi-Tech Systems Inc.In Stock: 865MTSMC-LAT3-U.R4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MTSMC-LAT3-U.R2A are determined by compatibility across the following critical parameters:

Mandatory Compatibility Parameters:

• Manufacturer: Multi-Tech Systems Inc.
• Series: SocketModem® Cell
• Mounting Type: Through Hole
• Antenna Type: U.FL connector
• Operating Temperature Range: -40°C ~ 85°C
• Voltage Supply Range: Compatible with 3.3V ~ 5V operation
• RoHS and REACH Compliance: ROHS3 Compliant, REACH Unaffected

Functional Compatibility Parameters:

• RF Family/Standard: Cellular
• Frequency Band Coverage: Includes minimum 700MHz, 850MHz, 1.7GHz, 1.9GHz
• Data Rate: 10Mbps minimum
• Serial Interface: USB or UART capable

The substitute parts listed maintain electrical and mechanical compatibility with the MTSMC-LAT3-U.R2A while offering enhanced protocol support or improved product status.

Parameter Comparison

Engineering Selection Recommendations

MTSMC-LAT3-U.R4 Selection Criteria:

The MTSMC-LAT3-U.R4 is a direct protocol upgrade within the same product family. It maintains identical electrical parameters (3.3V ~ 5V supply, 32mA receive/transmit current) and mechanical compatibility (through-hole mounting, U.FL antenna connector). The primary distinction is the upgrade from 4G LTE CAT-1 to 4G LTE CAT-3 protocol support, providing enhanced data throughput capability. Both parts are classified as obsolete and carry identical compliance certifications (ROHS3 Compliant, REACH Unaffected, MSL 1). This substitute is suitable for applications requiring improved LTE performance within the same form factor and supply voltage range.

MTSMC-L1G2D-U Selection Criteria:

The MTSMC-L1G2D-U represents an active product with extended functionality. It adds GNSS and GPS capabilities to the LTE protocol suite and expands frequency band coverage to include 800MHz, 900MHz, 1.8GHz, 2.1GHz, and 2.6GHz. The module supports dual serial interfaces (UART and USB) compared to USB-only on the MTSMC-LAT3-U.R2A. Critical consideration: the MTSMC-L1G2D-U operates at a fixed 5V supply voltage, whereas the MTSMC-LAT3-U.R2A supports 3.3V ~ 5V operation. This substitute is appropriate for applications requiring GNSS/GPS integration, expanded frequency band support, and where 5V supply voltage is available. The active product status ensures ongoing availability and support.

Frequently Asked Questions (FAQ)

Q: Can the MTSMC-LAT3-U.R4 be used as a direct replacement for the MTSMC-LAT3-U.R2A?

A: The MTSMC-LAT3-U.R4 is electrically and mechanically compatible with the MTSMC-LAT3-U.R2A. Both modules operate within the 3.3V ~ 5V supply range, draw identical current (32mA receive/transmit), and share the same through-hole mounting and U.FL antenna interface. The primary difference is the LTE protocol version (CAT-1 versus CAT-3). Substitution is valid for applications where the enhanced CAT-3 data throughput is acceptable or beneficial.

Q: What is the key limitation when substituting the MTSMC-L1G2D-U for the MTSMC-LAT3-U.R2A?

A: The MTSMC-L1G2D-U operates at a fixed 5V supply voltage, whereas the MTSMC-LAT3-U.R2A supports a 3.3V ~ 5V range. If the host system is designed for 3.3V operation exclusively, the MTSMC-L1G2D-U cannot be used without power supply modification. Additionally, the MTSMC-L1G2D-U package is specified as 64-DIP Module with 45 Leads, compared to the generic Module designation for the MTSMC-LAT3-U.R2A. Physical footprint verification is required.

Q: Why is the MTSMC-L1G2D-U recommended despite being a different product family?

A: The MTSMC-L1G2D-U is part of the same SocketModem® Cell series and maintains core compatibility parameters: through-hole mounting, U.FL antenna interface, -40°C ~ 85°C operating temperature, and 10Mbps data rate. The module is currently active, ensuring supply chain availability. The addition of GNSS/GPS functionality and expanded frequency band coverage makes it suitable for applications requiring enhanced positioning and broader network support.

Q: Are there any serial interface compatibility considerations?

A: The MTSMC-LAT3-U.R2A and MTSMC-LAT3-U.R4 both feature USB serial interface. The MTSMC-L1G2D-U supports both UART and USB interfaces. If the host system is designed for USB communication exclusively, all three modules are compatible. If UART communication is required, only the MTSMC-L1G2D-U provides this interface option.

Q: What is the significance of the product status (Obsolete vs. Active)?

A: The MTSMC-LAT3-U.R2A and MTSMC-LAT3-U.R4 are both classified as obsolete, indicating discontinued production. The MTSMC-L1G2D-U is active, meaning it is currently manufactured and supported. For new designs or long-term supply requirements, the active MTSMC-L1G2D-U is the preferred choice. For legacy system maintenance, either obsolete substitute may be selected based on functional requirements and available inventory.

Q: Do all three modules meet the same environmental and compliance standards?

A: The MTSMC-LAT3-U.R2A and MTSMC-LAT3-U.R4 are both ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. The MTSMC-L1G2D-U compliance specifications are not provided in the available data. Compliance verification is required before selecting the MTSMC-L1G2D-U for applications with specific regulatory requirements.