MTSMC-LAT3.R4-SP Equivalent & Substitute Parts

Part Overview

The MTSMC-LAT3.R4-SP is a Cellular 4G LTE CAT-3 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 U.FL connector interface and through-hole mounting configuration. The module is classified as obsolete, necessitating identification of active alternative components that maintain functional compatibility within the SocketModem® Cell series while meeting current supply chain requirements.

Substiute Parts

MTSMC-LAT3.R4-SP

Multi-Tech Systems Inc.In Stock: 1111MTSMC-LAT3.R4-SP Datasheet

Current PartRFQ

MTSMC-L1G2D-SP

Multi-Tech Systems Inc.In Stock: 1032MTSMC-L1G2D-SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MTSMC-LAT3.R4-SP is determined by the following critical parameters:

Manufacturer Consistency: Both the main part and substitute must originate from Multi-Tech Systems Inc. to ensure firmware compatibility, pinout alignment, and integration within the SocketModem® Cell ecosystem.

Physical Interface Compatibility: The substitute must maintain identical mounting type (through hole), package configuration (64-DIP Module, 45 Leads), and antenna connector type (U.FL) to ensure direct board-level replacement without redesign.

Voltage Supply Range: The substitute must operate within or encompass the 3.3V to 5V supply range of the original component.

Operating Temperature Range: The substitute must support the full -40°C to 85°C operating temperature specification.

Regulatory Compliance: Both components must maintain ROHS3 compliance and REACH unaffected status for continued use in regulated markets.

Frequency Band Coverage: The substitute must support the original frequency bands (700MHz, 850MHz, 1.7GHz, 1.9GHz) as a minimum requirement for network compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MTSMC-L1G2D-SP serves as the direct substitute for the obsolete MTSMC-LAT3.R4-SP based on the following engineering criteria:

Product Status Transition: The MTSMC-LAT3.R4-SP is classified as obsolete with no ongoing manufacturing or support. The MTSMC-L1G2D-SP maintains active product status with current inventory availability (1001 pieces in stock), ensuring long-term supply chain viability and continued manufacturer support.

Physical and Electrical Compatibility: Both components share identical package configuration (64-DIP Module, 45 Leads), mounting methodology (through hole), antenna interface (U.FL), and operating temperature range (-40°C to 85°C). The substitute operates at 5V supply, which falls within the original component's 3.3V to 5V range, ensuring compatibility with existing power delivery systems.

Regulatory Compliance Alignment: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for continued deployment in regulated markets without additional certification efforts.

Frequency Band Compatibility: The MTSMC-L1G2D-SP encompasses all original frequency bands (700MHz, 850MHz, 1.7GHz, 1.9GHz) while extending coverage to additional bands (800MHz, 900MHz, 1.8GHz, 2.1GHz, 2.6GHz), providing enhanced network compatibility without sacrificing original functionality.

Enhanced Functionality: The substitute provides expanded serial interface options (UART and USB versus serial only) and integrated GNSS/GPS capabilities, offering additional system integration flexibility while maintaining backward compatibility with existing serial communication protocols.

Frequently Asked Questions (FAQ)

Q: Can the MTSMC-L1G2D-SP directly replace the MTSMC-LAT3.R4-SP on existing PCBs?

A: Yes. Both components share identical package configuration (64-DIP Module, 45 Leads), through-hole mounting, U.FL antenna connector, and pinout alignment within the SocketModem® Cell series. Direct board-level substitution is supported without PCB redesign.

Q: What is the primary reason for substitution?

A: The MTSMC-LAT3.R4-SP is classified as obsolete with no ongoing manufacturing. The MTSMC-L1G2D-SP is an active product with current inventory and manufacturer support, ensuring supply chain continuity.

Q: Are there voltage supply differences between the two components?

A: The original component operates at 3.3V to 5V. The substitute operates at 5V. Since 5V falls within the original range, existing power delivery systems require no modification. Applications requiring 3.3V operation must verify the substitute's 5V requirement against system design constraints.

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

A: The substitute supports all original bands (700MHz, 850MHz, 1.7GHz, 1.9GHz) plus additional bands (800MHz, 900MHz, 1.8GHz, 2.1GHz, 2.6GHz). Network compatibility is maintained or enhanced.

Q: What additional capabilities does the substitute provide?

A: The MTSMC-L1G2D-SP includes integrated GNSS and GPS functionality and expanded serial interfaces (UART and USB) compared to the original serial-only interface. These additions do not affect backward compatibility with existing serial communication implementations.

Q: Are both components RoHS and REACH compliant?

A: Yes. Both the MTSMC-LAT3.R4-SP and MTSMC-L1G2D-SP maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for regulated market deployment.

Q: What is the MSL rating difference?

A: The substitute carries an MSL rating of 1 (Unlimited), indicating superior moisture resistance and extended shelf life compared to the original component specification.