Contact Probes

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Lead-free technology

Materials of the most common type of contact probe are copper alloy and hard gold plating and we improved the materials. Hardness has been increased with our uniquely developed alloy. It has also improved in durability, stability of contact resistance and can better prevent solder from adhering as composed with traditional probes.

Electrical resistance of lead-free contact probes and hard gold plating contact probes are shown as below figures.
Electrical resistance of a lead-free contact probe is shown in a upper figure and much stable.

Lead-free technology

Hardness is the same or higher when compared to the conventional copper alloy, abrasion is not problem accordingly. For more information, please contact at info@seiken.co.jp.

Catalog downloads

We offer a wide variety of contact probes and receptacles on pitches ranging from 0.45mm to 2.54mm. Plunger tip styles can be provided in a variety of tip styles for our standard type contact probes. Receptacles are available with preassembled cable length 100mm or 300mm as option.Should you have any question or need more information, please contact at info@seiken.co.jp.

Please click on your desired catalog for the following.

Custom-made contact probes are also available to meet your specifications and for more information, please contact at info@seiken.co.jp.

Contact form

Head Office

10F, Techno-Port Mitsui Seimei Building, 2-16-2 Minamikamata Ota-ku, Tokyo, Japan, 144-0035 (MAP)

TEL 81-3-3734-1212Telephone reception service:
9:00-18:30(weekday)

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