R-5-SW Datasheet, PDF (1/2 Pages) Switchcraft, Inc. – The most common use for Switch Probes is in the cable harness testing industry.

Switch Probes
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
also checking the
retention force. In
addition, Switch
Probes also verify
the presence of
non conductive
components such
as caps for connectors
or devices on a circuit
board. There are two
separate current paths
in a Switch Probe.
From the plunger tip
to the tail is normally
open and closes only
after the probe
deflects to the
designated travel.
The second path,
from the plunger
tip to the outside of
the receptacle, is
always closed.
Size 3 Switch Probe
.040
(1.02)
.040
(1.02)
.330
(8.38)
.050
(1.27)
.283
(7.19)
1.830
(46.48)
.101
(2.57)
.093
(2.36)
.285 _.267
(7.24) _(6.78)
.059
(1.50)
.046
(1.17)
.032
(0.81)
Probe Specifications
Minimum Centers: .125 (3.18)
Current Rating: 3 amps continuous
Maximum Travel: .295 (7.49)
Working Travel: .197 (5.00)
Travel to Switch Point: .025 (0.64)
Spring Force at Switch Point: 1.8 oz.
Rated Force Rated Force @ Switch
oz. (g)
oz. (g)
4.0 (114)
1.8 (51)
Preload
oz. (g)
1.4 (40)
Materials
Barrel: Nickel/silver, gold plated
Spring: Music wire
Plungers: Full-hard beryllium copper, gold
plated
Insulator: Delrin
Contact: Beryllium copper, gold plated
Mounting
Drill Size: #41
Mounting Hole Size: .094/.096 (2.39/2.44)
The size 3 switch probe shown does not require
a receptacle. The barrel of the switch probe
is designed to mount directly in the mounting
plate.
Size 4 Switch Probe
.265
(6.73)
.425
(10.80)
.0785
(1.99)
.093
(2.36)
1.930
(49.02)
.093
(2.36)
.535
(13.59)
.275
(6.99)
.046
(1.17)
.032
(0.81)
Probe Specifications
Minimum Centers: .156 (3.96)
Current Rating: 3 amps continuous
Maximum Travel: .160 (4.06)
Working Travel: .120 (3.05)
Travel to Switch Point: .107 (2.72)
Spring Force at Switch Point: 4.4 oz.
Rated Force Rated Force @ Switch
oz. (g)
oz. (g)
4.8 (136)
4.4 (125)
Preload
oz. (g)
2.5 (71)
Materials
Barrel: Nickel/silver, gold plated
Spring: Stainless steel
Plunger: Beryllium copper, nickel plated
Insulator: Delrin
Contact: Beryllium copper, gold plated
Specifications subject to change without notice. Dimensions in inches (millimeters)
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