Model 600354 µHELIX® Test Probes
| Ordering Part Number | 600354 |
| Descriptive Model Name | S500*2440/400/30@200/S610s/S0a |
| material | tube & spring (body): 304SS Plunger: SS20AP tool steel i/o end: 304SS |
| length | body: 2440 µm (0.096 inches) plunger: 610 µm (0.024 inches) |
| Length Over All (LOA) | 3,05 mm (0.120 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 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 600419 with round tip Model 600420 with flat tip Model 600407 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 |
| 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") |
| 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") |
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