/HDI, MCPCB, Rigid-Flex/
Automotive PCB
PCBSAIL specializes in manufacturing Automotive PCBs for oil vehicles and ev car. From ADAS systems and EV power modules to infotainment and LED lighting, our automotive-grade PCBs are engineered for high reliability, safety, and long-term performance.
With advanced manufacturing capabilities in HDI, rigid-flex, heavy copper, and metal core PCBs, we support automotive innovations such as LiDAR, 5G connectivity, autonomous driving, and electric vehicles (EV/HEV).
What Is Automotive PCB?
An Automotive PCB is a specialized printed circuit board designed to support and interconnect electronic components within vehicles.
Automotive PCBs should run reliably in extreme environmental conditions:
- Extreme temperatures (−40°C to 150°C+)
- High electrical loads and noise environments
- Constant mechanical vibration and shock
- Exposure to moisture, chemicals, and dust
- Electromagnetic interference (EMI)
These PCBs are important for controlling and monitoring critical vehicle systems.
Automotive PCBs are engineered with a “zero-failure tolerance” mindset, as their performance directly impacts vehicle safety and reliability.
Automotive PCB We Offered.
We provided a wide range of custom Automotive PCBs for different vehicle systems and requirements.
Our Capacity.
HDI Automotive PCB
It is designed for advanced electronic systems requiring compact size and high-speed signal transmission.
- Fine trace/space and microvia technology
- High routing density for complex circuits
- Excellent signal integrity for high-frequency applications
Rigid Automotive PCB
Rigid Automotive PCB is a cost-effective and durable.
- Strong mechanical stability
- Reliable performance in fixed installations
- Suitable for multilayer configurations
Flexible Automotive PCB
It is engineered for tight spaces and dynamic environments where flexibility is required.
- Bendable and lightweight design
- Reduced need for connectors and wiring
- High resistance to vibration
MCPCB
It is optimized for high thermal performance applications.
- Aluminum or copper core for heat dissipation
- High thermal conductivity
- Improved component lifespan
RF Automotive PCB
It is designed for high-frequency communication systems.
- Controlled impedance design
- Low signal loss materials
- Stable RF performance
Item | Rigid PCB | Flexible PCB | Rigid-Flex PCB |
Max Layer | 60L | 8L | 36L |
Inner Layer Min Trace/Space | 3/3mil | 3/3mil | 3/3mil |
Out Layer Min Trace/Space | 3/3mil | 3.5/4mil | 3.5/4mil |
Inner Layer Max Copper | 6oz | 2oz | 6oz |
Out Layer Max Copper | 6oz | 20z | 3oz |
Min Mead hanical Driling | 0.15mm | 0.1mm | 0.15mm |
Min Laser Drilling | 0.1mm | 0.1mm | 0.1mm |
Max Aspect Ratio (Mechanical Drilling) | 20:01 | 10:01 | 12:01 |
Max Aspect Ratio (Laser Drilling) | 1:01 | / | 1:01 |
Press Fit Hole Tolerance | ±0.05mm | ±0.05mm | ±0.05mm |
PTH Tolerance | ±0.075mm | ±0.075mm | ±0.075mm |
NPTH Tolerance | ±0.05mm | ±0.05mm | ±0.05mm |
Countersink Tolerance | ±0.15mm | ±0.15mm | ±0.15mm |
Board Thickness | 0.4-8mm | 0.1-0.5mm | 0.4-3mm |
Board Thickness Tolerance(<1.0mm) | ±0.1mm | ±0.05mm | ±0.1mm |
Board Thickness Tolerance(≥1.0mm) | ±10% | / | ±10% |
Min Board Size | 10*10mm | 5*10mm | 10*10mm |
Max Board Size | 22.5*30 inch | 9*14 inch | 22.5*30 inch |
Contour Tolerance | ±0.1mm | ±0.05mm | ±0.1mm |
Min BGA | 7mil | 7mil | 7mil |
Min SMT | 7*10mil | 7*10mil | 7*10mil |
Min Solder Mask Clearance | 1.5mil | 3mil | 1.5mil |
Min Solder Mask Dam | 3mil | 8mil | 3mil |
Min Legend Width/Height | 4/23mil | 4/23mil | 4/23mil |
Strain Fillet Width | / | 1.5±0.5mm | 1.5±0.5mm |
Bow &Twist | 0.003 | / | 0.0005 |
Standards for Automotive PCB.
Our manufacturing and assembly processes are aligned with Automotive Electronics standards to ensure consistent, automotive-grade performance.
IATF 16949
IATF 16949 is the global quality management system for the automotive industry. It emphasizes defect prevention, risk mitigation, and full traceability across the supply chain.
ISO 26262
ISO 26262 defines Automotive Safety Integrity Levels (ASIL A–D) and requires rigorous hazard analysis, safety architecture, and validation.
IPC
IPC standards define how boards are designed, built, and qualified for automotive use.
RoHS
To meet global environmental and safety regulations, it should reach RoHS standard.
Automotive PCB Feature
Our Automotive PCBs are engineered for high reliability, thermal stability, and long service life under extreme automotive conditions.
Automotive-Grade Reliability
Our PCBs are designed for mission-critical automotive systems where failure is not an option.
- Built to meet IPC Class 3 high-reliability standards
- Robust solder joints and interconnect structures
- Long lifecycle performance under continuous operation
Wide Temperature Resistance
Automotive environments experience extreme temperature fluctuations.
- Operating range: -40°C to +150°C+
- High TG materials for thermal stability
- Withstand thermal cycling (repeated expansion/contraction)
Superior Thermal Management
Efficient heat dissipation is important for high-power automotive electronics.
- Metal Core PCB (MCPCB) for heat-intensive applications
- Thermal vias and copper planes for heat spreading
- Heavy copper (up to 20oz) for high-current systems
High Vibration & Shock Resistance
Vehicles are constantly exposed to mechanical stress.
- Reinforced PCB structures
- Optimized component placement
- Strong adhesion and solder integrity
EMI / EMC Performance
Vehicles require stable communication between multiple electronic systems.
- Controlled impedance routing
- Grounding and shielding design
- Noise suppression techniques
High Current & Power Handling
Automotive systems such as EVs demand high power performance.
- Heavy copper layers (3oz–20oz)
- Optimized trace width and spacing
- Low resistance power distribution
Automotive PCB Material
Because Automotive PCBs must operate under extreme temperatures, vibration, humidity, and chemical exposure, it is important to choose the right substrate for long-term durability and safety..
1. High Tg FR-4
High Tg (Glass Transition Temperature) FR-4 is the most widely used material for automotive PCBs.
- Tg ≥ 150°C (up to 180°C+)
- Good mechanical strength and insulation
- Cost-effective and widely available
2. Polyimide
Polyimide are designed for extreme temperature environments.
- Operating temperature up to 260°C
- Excellent thermal stability
- High chemical resistance
3. Ceramic
Ceramic substrates are used in high-power and high-reliability applications.
- Outstanding thermal conductivity
- Low dielectric loss
- High dimensional stability
.
4. Heavy Copper
Heavy Copper is used in high-current automotive systems.
- Copper thickness: 3oz–20oz+
- High current-carrying capacity
- Improved thermal performance
Automotive PCB Design
When we are designing automotive PCBs, we should follow a safety-first engineering approach, strict adherence to automotive standards, and optimization for thermal, electrical, and mechanical stress.
Thermal Management
Automotive systems—especially EV power modules, ECUs, and LED drivers—generate significant heat.
We Need To:
- Use thermal vias under heat-generating components
- Incorporate copper planes for heat spreading
- Apply metal core PCB (MCPCB) where needed
- Optimize airflow and heat sink interface areas
Vibration & Mechanical Reliability
Vehicles are exposed to continuous vibration, shock, and mechanical fatigue.
We Should:
- Reinforced solder joints (especially for large components)
- Avoid tall/heavy components in high-vibration zones
- Use underfill or adhesive bonding for critical ICs
- Optimize PCB thickness and mounting points
EMI / EMC Design
Automotive electronics must coexist without interference, especially in ADAS, radar, and communication systems.
We Need To:
- Solid ground planes and proper grounding topology
- Controlled impedance routing for high-speed signals
- Shielding for sensitive circuits
- Separation of analog, digital, and power domains
Creepage & Clearance
High-voltage automotive systems (especially EVs) demand proper insulation spacing.
We Should:
- Maintain safe creepage and clearance distances
- Consider environmental contamination (humidity, dust)
- Use insulation barriers when necessary
Why Choose Us
We deliver high-quality PCBs with automotive-grade quality systems, advanced manufacturing technology, and engineering expertise
Turnkey PCB Solution
We provide a complete end-to-end service, eliminating the complexity of managing multiple vendors. We can do:
- PCB design and engineering support
- PCB fabrication Component sourcing
- PCB assembly (SMT, THT, mixed)
- Final testing and quality assurance
Quality
We adhere to globally recognized standards:
- IPC-A-610 Class 3 (high-reliability electronics)
- IPC-6012 (PCB performance standards)
- ISO 9001
- ISO 14001
- UL 94
Advanced Manufacturing
Our state-of-the-art facilities support complex and high-precision PCB assembly. We can do:
- Fine-pitch placement down to 0.38mm
- BGA (0.2mm pitch) with X-ray inspection
- Support for 0201 components
- High-density multilayer PCBs
- Mixed technology assembly (SMT + Through-hole)
Testing & Inspection
We implement multi-level testing to ensure every PCBA meets strict performance requirements.
- AOI (Automated Optical Inspection)
- X-ray inspection for hidden solder joints
- In-Circuit Testing (ICT)
- Functional testing under real operating conditions
- Voltage and performance validation
Fast Quotation
Our professional sales and engineering teams provide fast PCB quotes and technical support. Simply send us your Gerber files, BOM, and assembly drawings, and we will respond promptly with a competitive solution.
- Gushu Tangxi Second Industrial Zone, Shenzhen
- +86 755 2335 0814
- +86 135 1078 8094
- sales@pcbasail.com
FAQ About Automotive PCB?
1. What is an Automotive PCB?
An Automotive PCB (Printed Circuit Board) is a specialized circuit board designed to operate reliably inside vehicles.
It connects and supports electronic components used in systems such as engine control, ADAS, infotainment, battery management, and lighting.
2. What Are The Main Applications Of Automotive PCBs?
Common Materials:
- FR-4 – Cost-effective and widely used
- Polyimide – Flexible and heat-resistant
- High-frequency laminates – For RF and GPS applications
- Copper layers – For electrical conductivity and heat dissipation
Material selection depends on the drone’s performance, weight, and environmental requirements.
3. Can Automotive PCBs Handle High Temperatures?
Yes. Automotive PCBs are designed for high-temperature environments by using materials like high Tg FR-4, polyimide, or ceramic, ensuring stable operation even in engine compartments.
4. What Is The Typical Layer Count For Automotive PCBs?
It depends on the application:
- Simple systems: 1–2 layers
- Control modules: 4–8 layers
- Advanced systems (ADAS, EV): 10–30+ layers
5. What Is The Lead Time For Automotive PCB Production?
Typical lead times:
- Prototype: 3–7 days
- Mass production: 2–4 weeks
Lead time depends on complexity and volume.
6. How Can I Get A Quote For Automotive PCB Services?
You can contact us with your project details, including:
- PCB design files (Gerber files)
- Bill of Materials (BOM)
- Quantity requirements
- Application details
Our team will provide a fast and competitive quotation.