Model 600675 µHELIX®Test Probes
| Ordering Part Number | 600675 |
| Descriptive Model Name | S400*3800/900/30@450/B1900c4/S1300s |
| material | tube & spring (body): 304SS Plunger: BeCu; Beryllium Copper Pin2: SS20AP steel |
| length | body: 3800 µm (0.150 inches) plunger: 1900 µm (0.075 inches) 1900 Plunger length is an exception in this Group pin2: 1300 µm (0.051 inches) |
| Length Over All (LOA) | 7,00 mm (0.276 inches) |
| Alternate Lengths | 3,30 mm LOA, S400*2300-P1 Group 3,05 mm LOA, S400*2440-P1 Group 5,10 mm LOA, S400*3800-P1 Group 7,10 mm LOA, S400*4500-P2 Group 8,25 mm LOA, S400*6350-P1 Group 10,15 mm LOA, S400*6350-P2 Group |
| diameter | body: 406 µm (0.016 inches) plunger: 320 µm (0.0126 inches) pin2: 320 µm (0.0126 inches) |
| plunger tip shape | 4-point crown |
| alternate plunger tip shapes | Flat; Model 600700 |
| pin2 tip shape | sharp; 90° cone |
| pin2 alternate tip shapes | Contact AlphaTest for alternative tip shapes in this format |
| spring type | rectangular helix integral to tube |
| spring force | 30 grams at 450 µm (1.1oz@0.018 inches) |
| alternate force | Contact AlphaTest to inquire about alternative probe force. |
| spring compliance | 625 µm (0.025 inches) maximum 450 µm (0.018 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 | < 50 milliohms |
| continous current | > 2 Amps |
| μHELIX® spring life | > 106cycles |
| installed pointing accuracy | drill accuracy ±20 µm (0.0008") |
| INSTALLATION NOTES: | |
| probe-guide drill size | #77; 457 µm (0.085 inches) |
| plunger-guide drill size | #80; 343 µm (0.0135 inches) |
| pin2 drill size | #80 or larger; Fixture designer may opt for more clearance at the i/o board connection |
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