Contact Probes

  1. Home
  2. Contact Probes
  3. Bias technology

Bias technology

Conventional bias design allows the plunger to contact continuously with the barrel inner wall and this causes significant damage and repeated usage leads to defects such as scratching to the probe. In addition, there are limits to the ball size and this is not suitable for fine pitches.

The below figures show contact test of new bias design vs. non bias design (normal design) Upper figure is for new bias design and electrical resistance is stable.

Bias technologyBias technology

In order to solve this issue, we have developed new bias design by using precise processing technology and achieved to reduce damage to the inner wall of the barrel.

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

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

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:

Contact form