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Ultrasonic Welded T-Type Terminal Pin

Ultrasonic Welded T-Type Terminal Pin

Ultrasonic welded T-type terminal pins engineered for low-resistance, high-strength connections in high-current power and traction applications.

 

    • Material: TU1 (C1020), T2 (C1100) Oxygen-Free Copper

    • Pad Diameter (D): ¢1.8–2.5mm

    • Pad Thickness (T): 0.3–0.5mm

    • Wire Diameter (d): ¢0.8–1.0mm

    • Length (L): 8–21mm

    • Chamfer (d1): 0.3–0.7mm

    • Welding/Joining Method: Ultrasonic Welding

    • Plating Method: Barrel Plating / Selective Strip Plating

    • Plating Thickness: Tin: Ni 1–3um, Sn 2–4 um,  Gold: min 0.025 um
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Design & Materials

 

Designed for demanding power transmission environments, these T-type terminal pins use oxygen-free copper (TU1 / T2) to ensure excellent electrical conductivity and ultrasonic weld consistency.

The precisely controlled pad geometry and chamfer design improve weld energy transfer, resulting in stable metallurgical bonding and long-term mechanical reliability.
Flexible plating options—including barrel plating and selective strip plating—support different contact and corrosion-resistance requirements.
 
Assembly PIN

 

Applications & Features

 

Typical Applications

  • IGBT power modules and power semiconductor assemblies

  • Rail transit traction systems

  • Industrial power electronics and inverter systems

Key Features

  • Ultrasonic welding process ensures low contact resistance and high pull-out strength

  • Optimized pad thickness supports consistent energy coupling during welding

  • Multiple plating systems available for signal stability and corrosion protection

  • Proven performance in high-vibration, high-current operating environments

Key Customers Served
CRRC, StarPower, Linzhong, Chipown (XINLIAN)

 

FAQs

 

Q: Why choose ultrasonic welding instead of soldering?

A: Ultrasonic welding creates a solid-state metal bond without heat-affected zones, improving conductivity and long-term reliability in high-current applications.

 

Q: Can the dimensions be customized?

A: Yes. Pad diameter, pin length, chamfer size, and wire diameter can be customized to match your module design and welding equipment.

 

Q: What plating options do you offer?

A: We offer tin, nickel-tin, and gold plating, with barrel or selective strip plating depending on contact and insulation requirements.

 

Q: Are these terminals suitable for rail and traction systems?

A: Absolutely. These pins are widely used in rail transit and traction power systems, meeting high mechanical and electrical stability demands.

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