Head shape and pitch

Tip (head shape)

Choosing the right Contact Probe head makes the difference between achieving a normal contact or an excellent electrical contact. We are capable of saying so because since 1986 our customers have taught us that research and individualization on each order is very important to get the best results. We are therefore sure that examining and solving any problem concerning the electrical contact in the ICT (In-Circuit Test) with the customer, is the best strategy to deal with any request.

You will find below the various heads of Contact Probe in the catalog:

The following are some examples of our solutions to deal with the choice of head according to the situation:

to pierce a solder, especially on the motherboard or with specific oxidations, we recommend the use of a tip with an aggressive line such as head n° 02, n° 21 or n° 12.
on the other hand, if the customer needs not to leave any marks on the PCB (Printed Circuit Board), then we recommend a less aggressive tip, for example n° 03, n° 01 or n° 04;
to test the holes, tips n° 13, 11 and 05 are ideal.

01 - Concave

02 - Conic head 30°

03 - Flat head

P03 - Plastic Head

04 - Dome head

05 - Conical

06 - Conic rounded head

07 - SMD serrated 9 points

08 - 9 point serrated

09 - HSS spear

10 - 16 points serratd

11 - 3 sided pyramid

12 - HSS Spear

13 - 6 fluted star

14 - Dagger HSS

15 - Pyramid

17 - 4 sided chisel

18 - 30° Spear

19 - Concave

20 - Kaleidoscope

21 - 4 points crown

22 - 8 points crown

23 - 4 points with ring

24 - 4 points tapered clown

25 - Tulip

26 - 5 points crown

27 - SMD 4 points

28 - HSS spear

30 - 3 points crown

31 - Truncated cone

33 - Concave

35 - Spear

39 - Screw probe

40 - Push back

44 - Pressed in silver stud

50 - Spada

88 - Insulating cap

97 - Self Cleaning 90° - 4 Edged Dagger

The following are some examples of our solutions to deal with the choice of head according to the situation:

to pierce a solder, especially on the motherboard or with specific oxidations, we recommend the use of a tip with an aggressive line such as head n° 02, n° 21 or n° 12.
on the other hand, if the customer needs not to leave any marks on the PCB (Printed Circuit Board), then we recommend a less aggressive tip, for example n° 03, n° 01 or n° 04;
to test the holes, tips n° 13, 11 and 05 are ideal.

Pitch (grid)

In order to choose the right head of a Spring Probe, the pitch that determines the distance between one Probe and another in the formation of the final grid should be noted.

The most common pitches are those at 2.54mm and 1.27mm. In order to perform a good job, it is also necessary to remember to evaluate the diameter of the head in relation to the distance of the holes on the fixture.

We at Tecon are able to produce Spring Probes with a head diameter up to 0,2 mm.