Model 600766 µHELIX®Test Probes

Ordering Part Number	600766
Descriptive Model Name	S500*2440/400/30@200/S1300s/S0a
material	tube & spring (body): 304SS Plunger: SS20AP tool steel i/o end: 304SS
length	body: 2440 µm (0.096 inches) plunger: 1300 µm (0.051 inches)
Length Over All (LOA)	3,74 mm (0.147 inches)
Alternate Lengths in S500 Series (µHELIX® probes with 20 mill diameter)	3,05 mm LOA, S500*2440-P1 Group 3,74 mm LOA, S500*2440-P1 Group 5,10 mm LOA, S500*3800-P1 Group 6.50 mm LOA, Model 600462 7,10 mm LOA, S500*4500-P2 Group 8,25 mm LOA, S500*6350-P1 Group 10,15 mm LOA, S500*6350-P2 Group 10,40 mm LOA, S500*6600-P1 Group 14,10 mm LOA, S500*9500-P2 Group
diameter	body: 508 µm (0.020 inches) plunger: 356 µm (0.014 inches) i/o end: 508 µm (0.020 inches) i/o contact: 275 µm (0.011 inches;)
plunger tip shape: sharp, 90° cone
alternate plunger tip shapes for S500*2440-P1 Group	Model 600767 with round tip Model 600768 with flat tip Model 600769 4-point crown tip
i/o contact: annular ring, 13 µm width
alternate i/o contact in S500*2440-P1 Group	Contact AlphaTest Corporation
spring type	rectangular helix integral to tube
spring force	30 grams (1.1 oz) at 200  µm
spring compliance	400 µm (0.016 inches) maximum 200 µm (0.008 inches) recommended
plating	body: 35 µinches Type II Gold plunger: 35 µinches Type II Gold For other plating, contact AlphaTest.
lubricant between plunger and probe body	none: gold on gold wiping contact
probe resistance	< 30 milliohms
μHELIX® spring life	> 106cycles at recommended compliance
installed pointing accuracy	drill accuracy ±20 µm (0.0008")
INSTALLATION NOTES:
probe-guide drill size	#74; 572 µm (0.0225")
plunger-guide drill size	1/64"; 397 µm (0.0156")
Recommended i/o end contact pad	=>254µm (0.010") Gold plated. (Minimum pad size 126µm (0.005"))