DC Link Capacitor Busbar
Product Name:DC link Capacitor Busbar
Model Number:ASWT-B005
Product Size:According to customer requirements
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Product Introduction
The DC Link Capacitor Busbar is a structured conductive assembly composed of an upper connecting plate, a lower connecting plate, and multiple terminals. The capacitor core is electrically integrated between the two plates, forming a low-impedance current path designed for DC link applications in power electronics.
In motor drive modules for new energy vehicles, film capacitors are commonly used in DC link circuits to stabilize voltage, suppress ripple current, and support energy buffering. The busbar functions as the primary electrical interface between the film capacitor and the power module, directly influencing current distribution uniformity, parasitic inductance, and thermal behavior.
This structure is typically applied as a Film Capacitor Busbar for HEV / EV Motor Control Unit, where compact layout and controlled inductance are required to maintain switching stability under high-frequency operation. By using laminated copper conductors and optimized connection geometry, the busbar supports reliable electrical performance in DC link film capacitor systems.
PRODUCT PARAMETERS
Product Name
DC Link Capacitor Busbar
Model No.
ASWT-B005
Dimensions
OEM / ODM according to technical drawings
Material
T2 electrolytic copper (99.99% purity), conductivity ≥97% IACS
Hardness range: HV 80–110
The use of high-purity copper is intended to reduce resistive loss and stabilize electrical conductivity across temperature variations, which is critical for Copper Busbar for Electric Vehicle Capacitors operating under continuous load.
Manufacturing Process
Tooling → Precision Stamping → Tin Brazing → Surface Plating
Stamping ensures dimensional repeatability, while tin brazing provides metallurgical bonding at connection interfaces, supporting stable contact resistance during thermal cycling.
Surface Treatment Options
Bright tin plating
Lead-free matte tin plating
Ultrasonic cleaning and passivation
Tin plating is applied to improve solderability and corrosion resistance, a configuration often specified as Tin Plated Copper BusBar for EV in automotive power electronics assemblies.
Packing
EPE internal protection with outer carton or pallet
Production Capacity
50,000 sets per month
Samples
Available; produced by laser cutting or CNC punching
Lead time: 5–10 days
Orders
MOQ: 1,000 pcs per item
Manufactured with stamping dies
Lead time: 20–30 days (including die and mass production)
Shipping Methods
Air, sea, railway, or express courier
Payment Terms
30% deposit, balance before shipment
T/T or L/C at sight
MANUFACTURING AND PROCESS CAPABILITIES
The production system integrates mold development, precision stamping, brazing, electroplating, surface spraying, and laminated busbar fabrication. These processes allow controlled conductor thickness, stable bonding interfaces, and consistent plating quality, which are essential for Copper Busbar for DC Link Power Electronics Capacitor applications.
Lamination and terminal integration are designed to minimize loop inductance, supporting fast-switching conditions in DC link circuits. This approach is commonly adopted in New Energy Vehicle Film Capacitor BusBar assemblies where electrical and mechanical constraints coexist.
APPLICATION FIELDS
Power Electronics
Industrial inverters and frequency converters
Wind power and UPS systems
High-density power distribution cabinets
Welding equipment, test systems, servers, and medical devices
In these systems, the product is often used as a busbar for a power capacitor, enabling compact and reliable DC link connections.
Transportation
Electric locomotives and railway systems
Electric vehicles and hybrid vehicles
Electrically driven marine vessels
Typical use cases include busbar electric vehicle architectures, ev battery busbar connections, and integrated automotive battery terminal busbar assemblies.
Aerospace and Defense
Satellite and avionics systems
Spacecraft and missile electronics
Radar and armored vehicle power systems
Communication and IT
Data centers and high-performance computing
Power distribution for servers and supercomputers
In automotive platforms, this category is also classified under Automotive Power Connectors, Busbar Automotive, and Tin-plate Busbar Automotive, depending on system integration and surface treatment requirements.
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