Products Categories

Supplemental Restraint System (SRS) PCB Assembly

Supplemental Restraint System (SRS), also known as the airbag system, is a key automotive safety component that protects drivers and passengers in collisions. Its reliable operation is crucial, and it depends entirely on high-quality PCBA assembly. Our SRS PCBA processing adopts strict quality control and high-precision assembly technology, ensuring the SRS can accurately detect collision signals, control airbag deployment timing and intensity, and maximize protection for occupants. It is designed to resist high impact, high temperature, and electromagnetic interference, ensuring stable operation in emergency situations. With 7 SMT high-speed placement lines and professional testing teams, we provide SRS PCBA assembly that meets the highest safety standards of automotive electronics.

Supplemental Restraint System (SRS) PCB Assembly--STHL

Early challenges in SRS PCB adoption—such as weak collision signal capture, severe electromagnetic interference (EMI), and poor electrical safety isolation in automotive collision protection scenarios—have been overcome by specialized PCB assembly technologies, particularly rigid-flex PCBs and high-precision surface mount technology (SMT). These innovations effectively enhance the sensitivity of analog front-ends for capturing faint SRS control signals (collision impact, seatbelt status, airbag deployment), while integrating EMI shielding layers to eliminate interference from vehicle powertrain, electrical systems, and external environmental noise. Rigid-flex PCBs, in particular, balance compact form factors with reliable high-speed signal transmission, supporting the miniaturization of SRS modules without compromising collision protection performance and passenger safety. This technological leap has enabled SRS PCB assemblies to outperform traditional restraint system circuits in key areas:

Superior Signal Integrity

Advanced impedance-controlled routing and ultra-low-noise PCB substrates minimize signal attenuation during the capture and amplification of weak collision and restraint system signals. Equipped with high-resolution (≥16-bit) ADC integration, they ensure the accuracy of high-precision SRS control waveforms, laying the foundation for precise collision impact detection, seatbelt status monitoring, and real-time airbag deployment control.
Versatile Form Factor Adaptability

ompliant with IEC 60664 and ISO 26262 automotive functional safety standards, the assemblies adopt reinforced isolation designs (such as opto-isolation and galvanic isolation) to prevent electrical leakage and short-circuit risks in collision and normal operation scenarios. High-temperature resistant, shock-resistant, and anti-corrosion materials used in PCB substrates and conformal coatings also support flexible adaptation to diverse SRS types (driver airbag SRS, passenger airbag SRS, side curtain airbag SRS), ensuring safety for long-term on-board restraint system operation.
Reliable Long-Term Operation

ENIG (Electroless Nickel Immersion Gold) surface finishes and waterproof conformal coatings (IP67 rating) provide excellent corrosion resistance, moisture protection, and electrical stability. Combined with rigorous temperature, vibration, and impact testing, the assemblies maintain stable performance in harsh automotive cabin environments, extreme temperature conditions, and during long-term continuous SRS standby and emergency operation.

Key Applications Across Automotive Restraint Sectors

SRS PCB assembly technology powers precise and reliable collision protection in diverse automotive scenarios, supporting passenger safety, impact mitigation, and restraint system coordination during vehicle collisions.

Passenger Vehicles (Sedans, SUVs, Hatchbacks)

Passenger vehicle SRS PCB modules and integrated restraint system control units, featuring real-time collision impact detection and airbag deployment functions, integrated with vehicle seatbelt pretensioner and collision sensor systems for seamless data sharing and optimal passenger protection.

New Energy Vehicles (NEVs) & Hybrid Vehicles

NEV and hybrid vehicle SRS PCB modules and electric restraint control units, built with anti-interference circuits and high-temperature resistant designs to ensure stable performance in electric powertrains, facilitating coordinated control of SRS, battery safety systems, and collision avoidance systems.

Commercial Vehicles (Trucks, Buses, Vans)

Commercial vehicle SRS PCB assemblies and heavy-duty restraint system devices, leveraging high-impact resistance design and fast signal response for 24/7 continuous standby operation, supporting driver and passenger safety in heavy-duty collision scenarios.

Specialty & Intelligent Vehicles

Specialty and intelligent vehicle SRS PCB assemblies and adaptive restraint modules, supporting multi-point collision detection and compatibility with advanced driver assistance systems (ADAS), providing reliable technical support for autonomous vehicles, off-road vehicles, and luxury vehicles with advanced safety configurations.

Why STHL PCBA should be your top choice for your LED PCBA needs?

Let's explore the top 10 reasons why!

Real Factory

STHL PCBA is a real factory with 10,000+m² highly automated, dust-free factory，7 SMT lines, 2 DIP lines, 2 FCT lines, and 2 box building assembly lines.

Quality Guarantee

We buy components from famous international platform like Mouser, Digikey, Farnell, Future, Avnet, Arrow or the agents. No components substitutes without customers approval!

Rich Experience

20+ years of experience in PCB & PCBA field.

Cost Dowm

Professional engineering team supports cost down.

Global Sourcing

500k parts with 100+ agents and suppliers.

No MOQ

No minimum order requests, we accept both prototype and volume quantity orders.

Fully Certified

With IATF16949, ISO9001, ISO14001, ISO13485 Certifications.

NDA

We ensure all of your projects documents security and sign NDA before RFQ.

Intelligent Management

Use Intelligent ERP system, MES (manufacturing execution system) for fast tracking.

Fast Delivery

Prototype orders will be fast completed and delivered, mass orders lead time is 4~5 weeks.

About STHL PCB & PCBA

LED PCB Assembly Revolutionizing Lighting Technology with Precision and Per (1)

Shenzhen STHL Technology Co., Ltd. is a high-quality provider of electronics manufacturing services (EMS) in China, we serve customers worldwide along the whole industry chain including product design, material sourcing, PCBA production, cable assembly, box build assembly and comprehensive testing services.

Established in 2006, we have more than 20 years of experience in electronics contract assembly manufacturing. Currently, we employ more than 220 staff members. Our 10,000 sqm facilities include 7 surface-mount technology (SMT) production lines, 2 through hole technology (THT) lines , 2 function testing lines and 2 box build production lines.

At STHL, we provide electronics assembly services for energy power, communications, consumer electronics, computers & storage, safety & security, commercial and industrial products. Customers mainly from United States, Brazil, United Kingdom, Germany, Spain, Italy, Poland and . As an IATF16949，ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products exactly comply with ROHS standard and quality guarantee. Based on our excellent engineering and production capacities in technical areas such as materials analysis & storage, advanced equipment, reliability testing (AOI, X-RAY, ICT test and function test), high effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers wordlwide.

Products Capability

Items	PCB capacity
PCB name	LED PCB Assembly: Revolutionizing Lighting Technology with Precision and Performance
Material	FR-4; High TG FR-4; Aluminum; CEM-1; CEM-3; Rogers, etc
PCB type	Rigid, flexible, rigid-flexible
Layer NO.	1, 2, 4, 6, up to 24 layer
Shape	Rectangular, round, slots, cutouts, complex, irregular
Max PCB dimensions	1200mm*600mm
Board Thickness	0.2mm-4mm
Thickness Tolerance	±10%
Min Hole Size	0.1mm (4 mil)
Copper Thickness	0.5 OZ-3OZ (18 um-385 um)
Copper Plating hole	18um-30um
Min Trace Width	0.075mm (3mil)
Min Space Width	0.1mm (4 mil)
Surface finish	HASL, LF HASL, Imm Gold, Imm Silver, OSP etc
Solder mask	Green, red, white, yellow, blue, black, orange, purple
Assembly details	SMT and Thru-hole, ISO SMT and DIP lines
Testing on products	Testing jig/mold , X-ray Inspection, AOI Test, Functional test
Quantity	Min quantity : 1pcs. Prototype, small order, mass order, all OK

Products Capability

Files needed	PCB : Gerber files(CAM, PCB, PCBDOC)
	Components : Bill of Materials(BOM list)
	Assembly : Pick-N-Place file
PCB Panel Size	Min size : 0.250.25 inches(66mm)
PCB Panel Size	Max size : 1200*600mm
Components details	Passive Down to 0201 size
	BGA and VFBGA
	Leadless Chip Carriers/CSP
	Double-sided SMT Assembly
	Fine BGA Pitch to 0.2mm(8mil)
	BGA Repair and Reball
	Part Removal and Replacement
Component package	Cut Tape, Tube, Reels, Loose Parts
PCB+ assembly process	Drilling---Exposure---Plating---Etaching & Stripping---Punching---Electrical Testing---SMT---Wave
PCB+ assembly process	Soldering---Assembling---ICT---Function Testing---Temperature & Humidity

Digital Innovation

Digital Innovation

Digital Innovation

Digital Innovation

Digital Innovation

How to Get Started with STHL

Ready to partner with us for your LED PCB Assembly project? Here’s how you can get started

Contact Us

Reach out to our sales team via phone, email, or online chat to discuss your project requirements.
Provide Design Files

Send us your PCB design files (Gerber, BOM, etc.) for a detailed quote.
Get a Quote

We will provide you with a comprehensive quote, outlining all costs and timelines.
Production and Delivery

Once the quote is approved, our team will begin production, ensuring your PCB assembly is completed on time and to the highest quality standards.

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Supplemental Restraint System (SRS) PCB Assembly

Supplemental Restraint System (SRS) PCB Assembly--STHL

Superior Signal Integrity

Versatile Form Factor Adaptability

Reliable Long-Term Operation

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Key Applications Across Automotive Restraint Sectors

Passenger Vehicles (Sedans, SUVs, Hatchbacks)

New Energy Vehicles (NEVs) & Hybrid Vehicles

Commercial Vehicles (Trucks, Buses, Vans)

Specialty & Intelligent Vehicles

Why STHL PCBA should be your top choice for your LED PCBA needs?

Real Factory

Quality Guarantee

Rich Experience

Cost Dowm

Global Sourcing

No MOQ

Fully Certified

NDA

Intelligent Management

Fast Delivery

About STHL PCB & PCBA

Products Capability

Products Capability

Digital Innovation

Digital Innovation

Digital Innovation

Digital Innovation

Digital Innovation

Digital Innovation

How to Get Started with STHL

Contact Us

Provide Design Files

Get a Quote

Production and Delivery

Make an free consultant