Component Building Blocks for Connected Vehicle Communication ECUs

Explore component building blocks for EV telematics and V2X ECU design.

As electric vehicles become more connected, telematics and V2X communication systems play an important role in enabling vehicle-to-cloud data exchange, positioning, remote diagnostics, fleet monitoring and connected vehicle communication.

A telematics or V2X communication ECU is not built around one component alone. Beyond the wireless module, the system also requires reliable antenna connectivity, accurate timing, EMI/RFI control, power hold-up, thermal paths, PCB design support and protection circuitry.

This block diagram highlights selected component areas that support the development of EV telematics and connected vehicle communication hardware.

Applications & Target Markets

EV Telematics & V2X systems are commonly used to support:

• Vehicle-to-cloud data communication
• GNSS positioning and navigation support
• Remote diagnostics and fleet monitoring
• Emergency call and last-gasp data support
• Cellular, Wi-Fi and connected vehicle communication
• Communication ECU and telematics control unit design

These systems are typically found in telematics control units, connected vehicle platforms, fleet management systems and vehicle communication ECUs.

Engineering Background

A connected vehicle communication ECU often combines RF, digital, power and thermal design requirements in a compact electronic assembly.

Key design areas may include GNSS / LTE / Wi-Fi antenna connectivity, cellular or IoT wireless modules, stable timing references, board-level EMI/RFI shielding, RF and HDI PCB construction, short-duration backup power, thermal interface materials and surge-resistant protection components.

Each component area supports a different engineering requirement, such as signal integrity, RF noise isolation, clock stability, compact routing, power interruption support, heat transfer and circuit protection.

The Challenge

EV telematics and V2X hardware must operate reliably in a space-constrained and electrically noisy environment.

Design engineers may need to manage several challenges, including:

• Maintaining stable wireless and GNSS connectivity
• Reducing EMI/RFI noise around RF and communication circuitry
• Supporting accurate timing for GNSS, cellular and V2X platforms
• Providing short-duration power hold-up for emergency or shutdown events
• Managing heat from modem, RF IC and processor areas
• Designing RF / HDI PCB layouts with controlled impedance
• Protecting ECU power and sensing circuits from surge or pulse-load conditions

Selecting the right supporting components early in the design stage can help reduce layout risk, improvemsystem reliability and support smoother design validation.

iConnexion Solution

iConnexion supports engineers with application-relevant component recommendations for EV telematics and connected vehicle communication designs.

For this EV Telematics & V2X block diagram, we highlight component solutions across key design areas:

PCTEL – GNSS + LTE + Wi-Fi Combination Antenna

• Supports vehicle positioning and wireless connectivity for telematics data links
• Suitable for GNSS, LTE, Wi-Fi and connected vehicle communication systems
• Helps support reliable antenna connectivity in telematics and V2X hardware

Lierda – LTE / 5G / IoT Wireless Module

• Cellular module support for vehicle-to-cloud data transmission
• Suitable for remote monitoring, telematics connectivity and IoT communication
• Supports connected vehicle platforms that require wireless data exchange

Taitien – Standard VCTCXO / TCXO

• Provides stable clock source for GNSS, cellular and V2X connectivity
• Supports timing stability in communication and positioning systems
• Suitable for telematics ECUs that require reliable frequency reference

DACO – SiC MOSFET Discrete

• Supports auxiliary power switching in communication ECU circuit areas
• Suitable for power management and protection circuit support
• Helps address efficient switching requirements in compact electronic designs

Harwin – EMI/RFI Shielding

• Board-level shielding support for RF, GNSS and modem circuitry
• Helps reduce EMI/RFI noise around sensitive communication components
• Suitable for compact telematics ECUs where shielding and grounding are required

Sunshine PCB – RF / HDI PCB Platform

• Impedance-controlled multilayer PCB support for RF routing and dense layouts
• Supports high-speed communication ECU design
• Suitable for compact telematics and V2X hardware platforms

Fujipoly – SARCON Thermal Interface Material

• Thermal interface support for modem, RF IC and processor heat paths
• Helps transfer heat from active components to shield cans or enclosures
• Suitable for thermal management in compact communication ECU assemblies

Firstohm – Surge-Resistant MELF Resistor

• Protection and sensing support for ECU power circuits
• Supports input protection, voltage sensing and pulse-load circuit areas
• Suitable for telematics electronics exposed to demanding electrical conditions

Through our demand creation and technical support approach, iConnexion helps customers identify component options that are suitable for their application requirements, design stage and sourcing needs.

Download the iConnexion EV Component Solutions Catalogue

To explore the full EV application catalogue and discover recommended component solutions across EV architecture, smart vehicle electronics, battery management, power electronics, PDU, and Telematics & V2X applications, download our catalogue.

👉 Complete the short form to download the iConnexion EV Component Solutions Catalogue (PDF).

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Summary

EV Telematics & V2X systems require more than wireless connectivity alone. A reliable communication ECU depends on multiple supporting component areas, including antenna systems, timing references, EMI/RFI shielding, backup power, PCB design, thermal interface materials and protection circuitry.

iConnexion provides component support to help engineers and design teams evaluate suitable solutions for connected vehicle communication hardware.

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