IATF 16949 certified tin-plated copper busbar assembly
Flexible braided copper busbar for EV motor vibration damping
Integrated BMS busbar interface with voltage sensing terminals
Shielded high-voltage busbar harness for EMI suppression
CNC machined nickel-plated aluminum power rails for weight reduction
Cell-to-Body (CTB) battery interconnect busbar solutions
Automotive-grade epoxy powder coated 3D busbar insulation
Ultrasonic-welded copper-aluminum bimetallic busbar transitions
High-current PDU distribution busbar for electric heavy trucks
Halogen-free flame-retardant (LSZH) insulated EV busbars
IP69K rated waterproof insulated busbars for rugged EVs
Compact stacked busbar design for dual-motor EV architectures
Partial discharge-free busbar for 1200V ultra-fast charging
Custom OEM EV busbar prototyping with DFM optimization
Next-Gen 1200V EV Busbar Modules | Shielded EMI Solutions by SINNHONG
As the global EV market shifts toward Silicon Carbide (SiC) 800V/1200V platforms, power density and signal integrity have become the new benchmarks. SINNHONG, a premier China & Vietnam Manufacturer, specializes in OEM Electronics Manufacturing of high-performance EV Busbar Harnesses designed to meet these rigorous 2026 demands.
Our systems are engineered to the IPC-A-620 Class 3 Standard, ensuring mission-critical reliability for passenger EVs, heavy-duty electric trucks, and eVTOL applications. By leveraging our state-of-the-art Vietnam production facility, Western partners can achieve full Section 301 Tariff Mitigation, securing a duty-free, high-capacity supply chain. Whether you require Shielded High-Voltage Busbars for EMI suppression or Integrated BMS Interfaces, SINNHONG delivers UL Listed Wire and precision-engineered copper/aluminum interconnects that redefine electrical efficiency and Landed-Cost Optimization.
Technical Specification Matrix: High-Current & Low-Inductance Engineering
| Feature | Specification Detail | Industrial Compliance |
| Primary Metallurgy | Tin-Plated Copper / Nickel-Plated Aluminum | ASTM B33 / ASTM B210 |
| System Voltage | Compatible with 800V - 1200V DC Systems | SiC MOSFET & Ultra-Fast Charging |
| Current Handling | 500A to 1500A Continuous Operation | High-Density Powertrain Grade |
| Insulation Tech | Partial Discharge-Free Epoxy / LSZH Overmold | UL 94-V0 / Halogen-Free |
| Manufacturing Std | IPC-A-620 Class 3 / IATF 16949:2026 | Automotive & Aerospace Certified |
| Interconnects | Ultrasonic-Welded Bimetallic Transitions | Low-Resistance Energy Transfer |
| EMI Shielding | Integrated Shielded Harness for HV Safety | CISPR 25 Class 5 Compliant |
| Origin Strategy | SINNHONG Vietnam (Duty-Free) & China Hub | Tariff-Exempt (Non-China Origin) |
Precision Details for 2026 EV Infrastructure & Powertrains
Advanced EMI Suppression: Our Shielded High-Voltage Busbar Harnesses utilize integrated shielding layers to neutralize electromagnetic interference, a critical requirement for high-frequency SiC inverter systems.
Bimetallic Weight Reduction: To enhance vehicle range, we offer Ultrasonic-Welded Copper-Aluminum transitions, combining the superior conductivity of copper at terminals with the significant weight savings of Nickel-Plated Aluminum rails.
Smart BMS Integration: We manufacture Integrated BMS Busbar Interfaces that feature pre-assembled Voltage Sensing Terminals and NTC temperature sensors, facilitating Cell-to-Body (CTB) and Cell-to-Pack (CTP) architectures.
1200V Dielectric Integrity: Our busbars undergo rigorous testing for Partial Discharge-Free performance at 1200V, ensuring long-term insulation reliability under the extreme stresses of ultra-fast charging.
Flexible Vibration Damping: Utilizing Flexible Braided Copper, we provide interconnects for EV motor mounts that absorb mechanical vibration and thermal expansion without compromising electrical continuity.
DFM-Optimized Prototyping: Our engineering team provides Design for Manufacturing (DFM) optimization, helping Tier 1 clients reduce assembly time through Press-Fit compatible busbars and modular harness designs.
800V/1200V SiC Inverters: Low-inductance laminated busbars for high-frequency switching environments in premium electric vehicles.
Cell-to-Body (CTB) Battery Systems: Integrated power rails for modern structural battery packs where space and weight are at a premium.
Megawatt Charging Systems (MCS): High-current Automotive-Grade Copper Busbars designed for the next generation of electric fleet charging infrastructure.
Heavy-Duty Electric Trucks: IP69K Rated Insulated Busbars capable of withstanding the rugged environmental demands of commercial electric transport.
Dual-Motor Powertrains: Compact Stacked Busbar Designs that optimize current distribution in tight spaces between dual-motor EV axles.
Aerospace & eVTOL: AS9100-compliant busbar modules utilizing lightweight metallurgy for electric vertical takeoff and landing aircraft.
The customer provides product customization requirements and relevant information.
Our professional technical personnel analyze and evaluate the product requirements, and confirm product details with the customer.
We provide customers with quotations and production plans.
The customer confirms the quotation and production plan, and signs the contract.
We start production and maintain close communication with the customer during the production process.
We complete production and perform strict quality control testing.
We deliver the customized products to the customer and provide after-sales service.
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