AG35EUTDA-512-UGASG Procurement Guide for Automotive LTE and Telematics?

AG35EUTDA-512-UGASG Is More Than a Generic LTE Module

AG35EUTDA-512-UGASG belongs to Quectel's AG35 automotive LTE platform.

Unlike a general-purpose cellular module, AG35 was developed for automotive and Internet of Vehicles applications and is associated with automotive quality processes.

Typical applications include telematics control units, T-Box systems, fleet management, vehicle tracking, navigation, remote vehicle monitoring and remote diagnostics.

For procurement teams, this means that selecting the correct part involves more than matching LTE speed.

The complete manufacturer part number, regional radio configuration, firmware, automotive documentation and application requirements all need to be controlled.

AG35 Platform Overview

AG35 is an automotive-grade LTE Cat 4 platform with maximum LTE data rates up to 150 Mbps downlink and 50 Mbps uplink.

The AG35 family uses an LGA package measuring approximately 33.0 × 37.5 × 3.0 mm and is designed around automotive quality requirements.

For the public AG35-E regional configuration, Quectel documents:

• LTE FDD: B1, B3, B5, B7, B8, B20 and B28
• LTE TDD: B38 and B40
• WCDMA: B1, B5 and B8
• GSM/EDGE: 900 and 1800 MHz

The exact AG35EUTDA-512-UGASG ordering configuration should still be verified against the documentation applicable to the purchased material.

GNSS, eCall and ERA-GLONASS

AG35 integrates multi-constellation GNSS capability across the family, including GPS, GLONASS, BeiDou, Galileo and QZSS.

Quectel also documents eCall and ERA-GLONASS support in the AG35 platform.

This is particularly relevant for telematics and emergency-call applications, but module-level support should not be confused with complete vehicle or system certification.

A finished T-Box or telematics device still requires system-level integration, antenna validation, software configuration and any certification required for its target market.

Dead reckoning and other positioning enhancements can also depend on configuration and external components, so they should be confirmed as project requirements rather than assumed.

Automotive Procurement Requires More Traceability

A component used in an automotive design normally requires tighter configuration control than a general industrial LTE module.

Before approving a source, clarify whether your project requires:

• lot traceability
• manufacturer labels and original packaging
• production date information
• PPAP or related automotive documentation
• firmware configuration control
• change notification requirements
• sample qualification before volume use

Do not assume that a technically similar AG35 family member is an approved substitute.

A regional or ordering-code change may affect radio bands, software, qualification history or integration behavior.

Firmware and Configuration Must Be Part of the Purchase Specification

For a released telematics platform, the hardware MPN alone may not fully describe the qualified configuration.

Record the firmware revision from known-good production units where firmware is important to the system.

Also determine whether the project depends on:

• eCall or ERA-GLONASS
• GNSS
• particular operator profiles
• QuecOpen
• DFOTA
• Multi-APN
• Secure Boot or TrustZone
• Wi-Fi or Bluetooth interfaces
• specific host drivers

Only features actually required by the application should become procurement acceptance criteria.

Validate the Radio Configuration

Before volume purchasing, compare the required LTE and fallback bands with the countries and operators where the vehicle or telematics unit will be deployed.

Do not approve AG35EUTDA-512-UGASG only because the family is described as LTE Cat 4.

The exact regional configuration, antenna architecture, SIM profile and operator network should be checked.

For cross-border vehicle platforms, this step becomes even more important.

AG35EUTDA-512-UGASG RFQ Checklist

A useful RFQ should include:

• full MPN: AG35EUTDA-512-UGASG
• required quantity
• destination
• automotive or telematics application
• existing firmware revision, if applicable
• required radio bands
• GNSS requirement
• eCall or ERA-GLONASS requirement
• documentation and traceability requirements
• packaging requirements
• target delivery schedule

Availability, MOQ, date code, packaging and lead time should be confirmed for the actual lot offered.

BOM-Cost provides independent sourcing and procurement support. We do not assume availability, automotive qualification or feature compatibility until the exact offer and project requirements have been reviewed.