Technical data
Materials and galvanic
Head shape
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Double Plunger Probes

The Double Plunger Probe allows you to create an interface without using soldering. By installing them on special grids and having the mobile part at both ends, they create a connection, for instance, between two electronic boards.

The main feature of these probes is that they have a plunger at both ends.

The two plungers are mounted on the same or on two separate springs; and can be identical or have different head shapes, sizes and lengths.

Technical data of double Double Plunger Probes

Recommended minimum distance (grid-pitch)

Depending on the installation grid of the Double Plunger Probes and the connection requirements, we can produce many dedicated sizes.


Current rating

The dimensions of the Double Plunger Probes tend to be very small, as a result its nominal intensity does not typically exceed 1 A.

It can reach 3 A if the construction guidelines allow it.


Typical contact resistance

The typical contact resistance of a Double Plunger Probe is 50 mΏ.

Materials and finish of Double Plunger Probes

The materials used for the production of Double Plunger Probes are:

Materiale: ottone

For the barrel

Bronze, brass or nickel silver. In any case, the galvanic treatment is carried out in gold.

For the spring

Harmonic steel and then gilding.


For the plunger

Copper-beryllium or hardenable steel, subsequently gold-plated or nickel-plated.

Double Plunger Probes head shape

The shapes of the heads of the two plungers that make up the Double Plunger Probes can be different. The two plungers may have different head shapes depending on the surface to be tested.

Usually the most used are:

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