April 2019 - PCBA and test patterns are getting smaller and smaller, as an anwer to this demand TEST-OK has designed a probe wich can be used up to 1,27 mm pitch. Also a receptacle has been developed, based on the TEST-OK principle of soldering into the Connector Board.

Difference with other TEST-OK test probes, and most industry test probes, is the fact that the receptacle is the guiding part for the moving probe. This means that diameters could be reduced.

The probe is available in different lenghts and headstyles, for test pattern contacting, and for through hole contacting. Also a version with isolation around the head is available, this type makes it possible to contact for example a 50 pins double row 1,27 mm pitch header. The isolation has a centering function and also prevents shortage between the heads.

Shortform

			Module Materials - Probes and Receptacles
				TOK 9755 Test Probe	1,27 mm/50 mil
				Dimensions (mm.)
			Tecnical Data
				Spacing	1,27 mm / 50 mil
				Spring force at working level	100 / 200 g
				Current rating	3,0 A
				Typical contact resistance	20 mOhm
				Full travel	4,35 mm
				Recommended working travel	2,35 mm
			Materials
				Pin barrel	Brass – gold plated
				Pin spring	Music Wire, silver/gold plated
				Pin plunger	Hardened beryllium copper
			Lenghts			For this probe, the length is appropriate for differing situations:
				L1 = 29,7 mm	Through hole components on the UUT
				L1 = 30,8 mm	Test pads and pads of SMD components
					30.8 mm 18.9 mm the UUT itself as well as the pads of SMD components

 

Downloads

pdf TOK 9755 Series Probes (380 KB)

pdf TOK 9755 Series Receptacles (234 KB)