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Power Distribution Unit (PDU) PCB Assembly

Power Distribution Unit (PDU) is the "power distribution center" of new energy vehicles, responsible for distributing electrical energy from the battery pack to various electronic components and systems in the vehicle. High-quality PCBA assembly is crucial for the safe and stable operation of PDU. Our PDU PCBA processing leverages 19+ years of manufacturing experience and 7 SMT high-speed placement lines, ensuring precise circuit connection and reliable power distribution. It has overload, short-circuit, and over-voltage protection functions, preventing damage to vehicle electronic components. Built to adapt to harsh automotive environments, it resists high temperature, vibration, and humidity. With strict quality inspection and 2 finished product assembly lines, we provide high-reliability PDU PCBA assembly services for new energy vehicles.

    Power Distribution Unit (PDU) PCB Assembly--STHL

    Early challenges in PDU PCB adoption—such as weak power signal monitoring, severe electromagnetic interference (EMI), and poor electrical safety isolation in industrial and automotive power distribution 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 power distribution signals (voltage, current, load status), while integrating EMI shielding layers to eliminate interference from power supplies, electrical equipment, and external grid noise. Rigid-flex PCBs, in particular, balance compact form factors with reliable high-current signal transmission, supporting the miniaturization of PDU modules without compromising power distribution efficiency and operational safety. This technological leap has enabled PDU PCB assemblies to outperform traditional power distribution 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 power monitoring signals. Equipped with high-resolution (≥16-bit) ADC integration, they ensure the accuracy of high-precision power distribution waveforms, laying the foundation for precise load current/voltage monitoring, overload protection, and power allocation regulation.
    • Versatile Form Factor Adaptability

      Compliant with IEC 60664 and UL 60950 power safety standards, the assemblies adopt reinforced isolation designs (such as opto-isolation and galvanic isolation) to prevent electrical leakage and short-circuit risks in high-current power distribution scenarios. High-temperature resistant, flame-retardant, and anti-corrosion materials used in PCB substrates and conformal coatings also support flexible adaptation to diverse PDU types (industrial PDU, automotive PDU, data center PDU), ensuring safety for long-term power 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 and vibration testing, the assemblies maintain stable performance in harsh industrial, automotive, and data center environments and during long-term continuous power distribution.

    Key Applications Across Power Distribution Sectors

    PDU PCB assembly technology powers efficient and reliable power distribution in diverse industrial, automotive, and data center scenarios, supporting load management, power safety, and energy optimization.

    Industrial Power Systems

    Industrial PDU PCB modules and power distribution control units, featuring real-time load monitoring and overload protection functions, integrated with industrial control systems (PLC) for seamless data sharing and power allocation optimization.

    Data Centers & Telecom Facilities

    Data center PDU PCB modules and rack-mounted power distribution units, built with anti-interference circuits and multi-channel load control to ensure stable performance in data centers, facilitating reliable power supply for servers and network equipment.

    New Energy Vehicles (NEVs) & Automotive

    Automotive PDU PCB assemblies and on-board power distribution devices, leveraging high-current design and stable signal transmission for 24/7 continuous operation, supporting vehicle battery power distribution, motor power supply, and auxiliary system power management.

    Residential & Commercial Power Distribution

    Residential/commercial PDU PCB assemblies and smart power distribution modules, supporting multi-circuit power allocation and energy monitoring, providing reliable technical support for smart homes, office buildings, and commercial facilities.

    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 : 0.25*0.25 inches(6*6mm)

    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

    Soldering---Assembling---ICT---Function Testing---Temperature & Humidity

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    Digital Innovation

    APPhored (7)
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    Digital Innovation

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    Digital Innovation

    Material are (1)
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    Digital Innovation

    第24点图替换组合配图1
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    Digital Innovation

    DIP 1
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    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

      Contact Us

      Reach out to our sales team via phone, email, or online chat to discuss your project requirements.
    • Professional Expertise (2)

      Provide Design Files

      Send us your PCB design files (Gerber, BOM, etc.) for a detailed quote.
    • Cost-Effective Solutions

      Get a Quote

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

      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.

    Make an free consultant

    Whether you need PCB Fabrication or PCBA Assembly Service, STHL delivers innovation and reliability.

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