microHELIX Test Probes your fine-pitch connection

Model 600253 Test Probe



Model 600253 µHELIX®

Ordering Part Number 600253
Descriptive Model Name S500*3800/700/70@350/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
3,74 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"
i/o contact: annular ring ø=275 µm
plunger tip shape: sharp, 90° cone plunger tip
alternate plunger tip shapes Model 600254 with round tip
Model 600255 with flat tip
Model 600365 4-point crown
i/o contact shape: annular ring i/o end
alternate i/o contact Contact
spring type rectangular helix integral to tube
typical spring force 70 grams (3.15 oz) at 350  µm (0.014")
alternate force Model 600262 (30g@450 µm)
spring compliance 700 µm (0.028") maximum
350 µm (0.014") typical
plating body: 35 µinches Type II Au over Ni flash
plunger: 35 µinches Type II Au over Ni flash
lubricant between plunger and probe body none: gold on gold wiping contact
probe resistance < 30 milliohms
µHELIX® spring life > 106cycles
installed pointing accuracy drill accuracy ±20 µm (0.0008")
probe-guide drill size #74; 572 µm (0.0225")
plunger-guide drill size 1/64"; 397 µm (0.0156")

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