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Automotive & EV Systems

PCB solutions for automotive and EV systems are directly tied to functional safety, HV isolation, long-term reliability, and mechanical stability under stress.


01

EV platforms introduce additional complexity—fast-switching SiC inverters, high-current HV buses, dense BMS monitoring, and mixed-signal electronics that must survive a decade (or more) of thermal cycling.

02

Automotive electronics operate under conditions that normal consumer hardware will never experience

—heat, cold, vibration, high voltage, electrical transients, long duty cycles, and strict safety expectations.


Automotive & EV Systems

PCB Requirements for Modern Automotive Electronics

Design for High Voltage, Vibration, Thermal Cycling, and Safety Compliance

Application Scenarios & PCB Constraints



Learn How We Solve Your Design Challenges 





Application Scenario

Design Challenges / Functional Needs

Required PCB Capabilities (Industry-Specific)

EV Battery Management Systems (BMS)


- HV isolation between sensing & power

- High-isolation stackups

-Accurate sensing over long wiring harnesses- HV creepage/clearance spacing
- High-voltage transients - Low-drift sensing routing

- Mixed digital/analog stability


- High-CTI materials for EV environments

Inverter / Motor-Control Units


- Fast-switching SiC / IGBT thermal density

- Heavy-copper planes

- High-current loops - Low-inductance power paths
- EMI/EMC from switching edges - EMI-aware isolation layout

- Vibration & thermal cycling stress


- Reinforced mechanical reliability

On-Board Chargers (OBC) / DC-DC Converters


- Wide temperature range (–40°C to 125°C)

- Thermal-via grids

- High voltage & HF switching - Thick dielectric for HV layers
- Isolated power stages - HV isolation stackups

- Thermal hotspots in compact enclosures


- Materials stable under HF switching

ADAS / Camera / Radar Modules


- High-speed SerDes (MIPI/FPD-Link)

- Controlled-impedance HDI

- Sensor fusion EMI - Low-loss materials
- Cold-start condensation - Shielded stackup strategies

- Long-distance harness noise


- Moisture-resistant laminates

Automotive Lighting / Body Control


- High-temperature ambient exposure

- High-Tg materials

- Large current distribution - Copper balancing for thermal cycling

- Long lifetime expectations


- Robust plating & via integrity


Stackup & Material Insights for Automotive & EV Systems

These are not capabilities—they are industry-imposed constraints required for safe, long-life automotive electronics.

Automotive & EV Systems

Automotive stackups are defined by:

  • high-temperature laminates (high Tg, high CTI)
  • thick dielectric layers for HV isolation
  • heavy-copper regions for high currents
  • reinforced via structures for vibration stress
  • low-loss materials for ADAS SerDes stability
  • copper balancing for thermal-cycling reliability
  • moisture-resistant laminates for cold-start environments
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Our Industry-Specific Engineering Approach

The exact engineering checks we perform for each project include:

Automotive & EV SystemsWHAT WE SOLVE

Automotive & EV SystemsWHAT WE CHECK

Automotive & EV SystemsWHY IT MATTERS

ISO 7637-2 transient & load-dump vulnerability

Reviewing input protection (TVS), filtering, grounding, and return paths

Prevents resets, latent damage, and field failures during vehicle transients

HV isolation gaps and routing in compact layouts

Validating creepage/clearance, slots/keepouts, coating strategy, CTI/material limits

Reduces arcing risk and supports functional safety and HV compliance

Partial discharge risk in HV nodes and edges

Flagging sharp copper edges, void-prone structures, spacing at HV transitions

Avoids insulation degradation that shows up after thermal cycling

Thermal hotspots in high-current paths (inverters, DC-DC, busbars)

Assessing copper weight, current density, via stitching, heat spreading and sinking paths

Prevents overheating, delamination, and accelerated aging

EMI coupling from power stages into sensing/communication

Calling out noisy return paths, switching loops, partitioning, and shielding opportunities

Improves CISPR 25 margin and reduces intermittent performance issues

Vibration-driven fatigue at connectors and heavy components

Stress-checking anchor points, pad/trace reinforcement, teardrops, stiffeners, and stackup rigidity

Reduces cracked joints and intermittent opens under vibration profiles

Corrosion susceptibility in harsh environments (salt fog, moisture)

Reviewing surface finish, edge plating needs, conformal coating coverage, and leakage paths

Prevents leakage, dendrites, and long-term reliability drift

SI integrity on automotive high-speed links (CAN FD / Ethernet)

Reviewing impedance targets, pair routing, reference continuity, skew, and stubs

Avoids late-stage link instability and EMI surprises

Products


Automotive & EV Systems Typical Problems

We’ve Already Solved

  • Automotive & EV SystemsPrevented via cracking across 1,000+ thermal-cycling tests
  • Automotive & EV SystemsStabilized SiC inverter loops to reduce EMI hotspots
  • Automotive & EV SystemsImproved BMS sensing accuracy under long harness lengths
  • Automotive & EV SystemsReduced HV creepage failures in EV battery stages
Automotive & EV Systems Automotive & EV Systems

You can submit files via our Message Box for a DFM check and pricing.

Proven by 7 industries, 4000+ customer projects

Automotive & EV Systems

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