Smiths Connectors is now Smiths Interconnect

LEARN MORE >

MarketID in (2)
  • SW-3, SW-4 and SW-5 Series probes
  • 0.125”, 0.156” and 0.187” centers
  • 3 A current rating
  • Spring force options between 4.00 and 8.60 oz.
  • ≤ 2.760" (70.10 mm) overall lengths
A Switch Probe is a spring contact probe and receptacle combination that is normally open, and after a designated travel the switch probe closes. The most common use for switch probes is in the cable harness testing industry. The switch probe is used to verify the correct location of a terminal in a connector while checking the retention force as well.

Switch probes also verify the presence of nonconductive components such as caps for connectors or devices on a circuit board. Smiths Connectors offers three standard sizes of switch probes.
 

Product Specifications

Probe
(Click for PDF)
Centers Probe OAL Max Travel Travel to Swtich Mating Receptacle
(Click for PDF)
    SW-3    Series 0.125 (3.18) 1.830 (46.48) 0.295 (7.49) 0.025
(0.64)
N/A
SW-4
Series
0.156 (3.96) 1.930 (49.02) 0.160 (4.06) 0.107
(2.72)
R-4-CR 
Series
SW-5
Series
0.187 (4.75) 2.760 (70.10) 0.190 (4.83) 0.030
(0.76)
R-5-SW
Series
Dimensions are in inches (mm) | All specifications are subject to change.