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Electric Vehicle Systems

As electric vehicles become faster, smarter, and more powerful, their electrical systems need safe and reliable connectors to handle higher power loads. Maishideyou provides connector component solutions for EV systems. Our products are designed to support safety, stable performance, and long service life.

mastdew supports EV applications with connector solutions that focus on:

  • Safety design for secure assembly and connection
  • Reliable performance under high current and high voltage conditions
  • Good heat resistance for demanding EV environments
  • Strong vibration resistance for vehicle operation
  • Sealing design to help prevent water, dust, and short circuits
Electric Vehicle
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High-voltage Connectors

mastdew provides high-voltage connector components for electric vehicle systems. These products are designed for stable current transmission, good shielding performance, and reliable connection.

Our high-voltage connector solutions can be used in key EV systems, including:

  • Electric powertrain systems
  • Battery systems
  • Charging systems
  • Power distribution systems
  • High-voltage interconnection systems
    In-House Capability

    Everything Under One Roof

    Tooling, stamping, molding and assembly all sit in the same building in Jiading. Nothing is subcontracted — which is why the tolerance holds.

    • 0.001MM
      ACHIEVED TOLERANCE

      Mold & Die Making

      Wire EDM, sinker EDM, jig grinding and high-speed CNC — every tool built and maintained in-house.

    • 1500SPM
      Stamping speed

      Precision Stamping

      Progressive dies running copper alloy strip, with in-line vision inspection on every hit.

    • 120T
      Max clamping force

      Injection Molding

      Insert molding and micro-molding on engineering thermoplastics, with fully automated take-out.

    • 1.55B
      Parts / year capacity

      Automated Assembly

      Vision-guided assembly cells with 100 % in-line inspection and barcode traceability.

    Projects

    High-Voltage Wire Harness Solution

    • mastdew also supports customers with high-voltage connector and wire harness solutions. When standard products cannot meet project needs, we can provide customized solutions according to customer drawings, samples, or technical requirements.

      Our custom solutions include connectors and wiring harnesses that:

      • Connect the battery to the inverter
      • Connect the charging system to the motor
      • Connect the onboard charger to the battery
      • Connect batteries to AC compressors
      • Connect fast chargers to the PDU
      • Support battery packs for efficient power transfer to PDU or DC/DC converters
      • Support charging ports for stable and efficient energy transfer during charging
      • Maishideyou is committed to providing safe, reliable, and customized connector component solutions for electric vehicle systems.
      Get a Quote
      • 99.9%

        accuracy achieved

      • 85%

        less heat failure

      • 85%

        lower resistance

    How We Work

    Drawing to Production, in Five Steps

    The APQP framework, applied to every programme — whatever the volume.

    • 01

      Feasibility

      DFM review on tolerances, plating, moldability and terminal geometry.

      48 HOURS
    • 03

      Design & Quote

      3D design, tooling concept and a fixed price for mold and unit cost.

      5 days
    • 03

      Tooling

      Mold and stamping die cut
      in-house on our own EDM and CNC lines.

      25 days
    • 04

      First Article

      T1 samples with a full CMM dimensional report and material certificates.

      7 days
    • 05

      PPAP & Ramp

      PPAP submission, then ramp-up on automated assembly with SPC in place.

      Series
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