Model 600262 µHELIX^®Test Probes

Ordering Part Number	600262
Descriptive Model Name	S500*3800/900/30@450/S1300s/S0a
material	tube & spring (body): 304SS plunger: SS20AP tool steel i/o end: 304SS
length	body: 3800 µm (0.150 inches) plunger: 1300 µm (0.051 inches)
Length Over All (LOA)	5,10 mm (0.201 inches)
Alternate Lengths in S500 Series (µHELIX® probes with 20 mil diameter)	3,05 mm LOA, S500*2440-P1 Group  3,80 mm LOA, S500*3000-P1 Group  5,10 mm LOA, S500*3800-P1 Group  7,10 mm LOA, S500*4500-P2 Group  8,10 mm LOA, S500*5500-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
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	round, Model 600263 flat, Model 600264, 4-point crown, Model 600303
i/o contact: annular ring, 13 µm width
spring type	rectangular helix integral to tube
spring force	30 grams (1.1 oz) at 450 µm
alternate force	Model 600253 (90 g @ 350 µm)
spring compliance	900 µm (0.035") maximum 450 µm (0.018 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	> 106 cycles 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")