MTSMC-L4N1-U.R2 Equivalent & Substitute Parts

Part Overview

The MTSMC-L4N1-U.R2 is a cellular and navigation RF transceiver module manufactured by Multi-Tech Systems Inc. as part of the SocketModem® Cell series. This module integrates 4G LTE CAT-4 cellular connectivity (AT&T/Verizon-Mobile compatible) with GNSS navigation capabilities across multiple frequency bands (600MHz, 700MHz, 850MHz, 1.7GHz, 1.9GHz). The module features USB serial interface connectivity, U.FL antenna connector, and through-hole mounting in a 64-DIP package with 45 leads.

The MTSMC-L4N1-U.R2 is currently discontinued at DiGi Electronics. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure continued availability for new production builds and field replacements.

Substiute Parts

MTSMC-L4N1-U.R2

Multi-Tech Systems Inc.In Stock: 802MTSMC-L4N1-U.R2 Datasheet

Current PartRFQ

MTSMC-L4N1-U.R3

Multi-Tech Systems Inc.In Stock: 839MTSMC-L4N1-U.R3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MTSMC-L4N1-U.R2 is determined by strict alignment across the following critical parameters:

Manufacturer and Series Compatibility: The substitute part must originate from Multi-Tech Systems Inc. and belong to the SocketModem® Cell series to ensure firmware compatibility, pinout alignment, and mechanical fit within existing designs.

Frequency Band Coverage: The substitute must support the identical frequency bands (600MHz, 700MHz, 850MHz, 1.7GHz, 1.9GHz) to maintain cellular network compatibility across AT&T and Verizon-Mobile networks.

Antenna Interface: The substitute must feature U.FL antenna connector type with through-hole mounting to ensure direct mechanical and electrical compatibility with existing PCB designs.

Electrical Specifications: The substitute must operate within the same voltage supply range (3.3V ~ 5V) and maintain compatible current consumption profiles for receiving and transmitting operations.

Package Configuration: The substitute must use the 64-DIP Module package with 45 leads to ensure pin-for-pin compatibility and proper board-level integration.

Compliance Standards: The substitute must maintain ROHS3 compliance and MSL 1 rating to satisfy regulatory and environmental requirements equivalent to the original part.

Parameter Comparison

Engineering Selection Recommendations

The MTSMC-L4N1-U.R3 qualifies as a direct substitute for the MTSMC-L4N1-U.R2 based on the following engineering criteria:

Electrical Compatibility: Both parts operate within identical voltage supply ranges (3.3V ~ 5V) and support the same frequency band coverage across cellular and GNSS protocols. The 150Mbps data rate specification is maintained across both variants.

Mechanical Compatibility: Both parts utilize the 64-DIP Module package with 45 leads and through-hole mounting configuration, ensuring pin-for-pin compatibility and direct PCB integration without design modification.

Regulatory Compliance: The MTSMC-L4N1-U.R3 maintains ROHS3 compliance equivalent to the original part, satisfying environmental and regulatory requirements for production and field deployment.

Product Availability: The MTSMC-L4N1-U.R3 maintains active product status with 766 units in stock, providing immediate availability for new production builds and replacement inventory compared to the discontinued MTSMC-L4N1-U.R2.

Interface Enhancement: The MTSMC-L4N1-U.R3 provides expanded serial interface support through the addition of UART connectivity alongside USB, offering increased design flexibility without compromising existing USB-based implementations.

Frequently Asked Questions (FAQ)

Q: Can the MTSMC-L4N1-U.R3 be used as a direct replacement for the MTSMC-L4N1-U.R2 in existing designs?

A: Yes. Both parts share identical package configuration (64-DIP Module, 45 leads), voltage supply range (3.3V ~ 5V), frequency band coverage (600MHz, 700MHz, 850MHz, 1.7GHz, 1.9GHz), and operating temperature range (-40°C ~ 85°C). Pin-for-pin compatibility is maintained, allowing direct substitution without PCB redesign.

Q: What are the key differences between these two part numbers?

A: The primary differences are product status and serial interface capabilities. The MTSMC-L4N1-U.R2 is discontinued and supports USB serial interface only. The MTSMC-L4N1-U.R3 is active in production and provides both UART and USB serial interfaces, offering expanded connectivity options.

Q: Are the antenna connectors identical between both parts?

A: Yes. Both the MTSMC-L4N1-U.R2 and MTSMC-L4N1-U.R3 feature U.FL antenna connectors with through-hole mounting. Existing antenna assemblies and RF matching networks are compatible with both variants.

Q: Do both parts support the same cellular networks?

A: Yes. Both parts support 4G LTE connectivity across AT&T and Verizon-Mobile networks through identical frequency band coverage (600MHz, 700MHz, 850MHz, 1.7GHz, 1.9GHz). GNSS/GPS navigation functionality is supported by both variants.

Q: What is the impact of the additional UART interface on the MTSMC-L4N1-U.R3?

A: The addition of UART serial interface on the MTSMC-L4N1-U.R3 provides an alternative communication pathway alongside USB. Existing designs utilizing USB connectivity operate without modification. New designs may leverage UART for reduced power consumption or simplified host processor integration.

Q: Are there any compliance or certification differences between these parts?

A: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Regulatory compliance is equivalent across both variants, supporting deployment in equivalent application environments.

Q: What is the recommended approach for inventory transition from MTSMC-L4N1-U.R2 to MTSMC-L4N1-U.R3?

A: Given the discontinued status of the MTSMC-L4N1-U.R2 and active availability of the MTSMC-L4N1-U.R3, new production builds should transition to the MTSMC-L4N1-U.R3. Existing field inventory of the MTSMC-L4N1-U.R2 may continue to be deployed in maintenance and replacement scenarios where stock remains available.