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Product Introduction
Press-fit (Press-fit terminals)
Press-fit terminals are pins that are pressed into the through-holes of a circuit board and held in place by the spring properties of the terminal shape. Typically, electrical connections are maintained by soldering or SMT mounting combined with reflow processing, but press-fit terminals are held solely by their restoring force, enabling significant reductions in manufacturing costs such as reflow equipment costs and electricity, and also contributing to environmental load reduction.
Press-fit terminals have been used in consumer electronics such as computers for a long time, and recently their use in automotive electronics components in Europe and the US has been increasing, and further adoption worldwide is expected.
There are two types of press-fit terminals: terminals processed from metal wire and terminals processed from metal strip. Due to the required spring properties of the press-fit part at the terminal tip, materials such as phosphor bronze are used. The Finecs Group can handle both types. Finecs Vietnam mainly provides press-fit terminals from press processing. We use 30 to 60-ton press machines for press processing. Currently, we recommend the Needle Eye shape for press-fit terminals. If customers have other press-fit terminal shapes or specifications, we will confirm the feasibility separately.
For more details on press-fit, please see here: https://www.finecs.co.jp/knowledge/press_fit.html
Specifications Reference | Sheet thickness t = 0.64mm, 0.8mm (actual t = 0.5mm), Tolerance ± 0.05mm ~ |
Material | C5191 (phosphor bronze) is recommended. The metal properties of C5191, "spring properties," maximize the holding force of press-fit pins. Additionally, C7025 (Corson copper) is also suitable for press-fit pin applications.C7025 has higher electrical conductivity compared to C5191, making it a material of interest in the development of electronic components in the information and communication revolution era. |
Plating | Ni base + Sn reflow plating is common. Plating and surface treatment in Vietnam will be discussed. |
※ For detailed specifications of press-fit components (press processing), please contact us via phone, email, or online meetings.
Please feel free to contact Finecs Vietnam for more details.