075-40 Series
075-40 Series
The 075-40 series probes are designed for mixed
height (dual-level) loaded board testing.
Sockets
Probe
“A”
.052 [1.32] O.D.
(TYP)
“B”
.025 [0.635]
03 - Chisel
13
41 - Spear
- Chisel
61
- Blade
94
- Crown
075-SD
“A”
.0585 [1.49] O.D.
(TYP)
075-SD
43 - Chisel
71
- Blade
250R
1.170 [29.72]
.180 [4.57]
075-SDN250S
.045 [1.14 ] O.D.
24 - Crown
250W
“B”
Ø.025 [0.635]
06 - Star
.300 [7.62]
(TYP)
.030 [0.76]
(TYP)
1.175 [29.85]
.197 [5.00]
Ø.039 [1.00]
075-SDS250M
1.070 [27.18]
.032 [0.82] I.D.
Typical Dual-Level Fixture Layout
075-SD
250N
.395 [10.03]
.030 [0.76]
.300 [7.62]
.050 [1.27]
.150 Tip
Height Difference
.057 [1.45]
075-SD
Unit
Under
Test
08 - Triad
28
44 - Crown
- Triad
.060
Stroke
100-40 or
075-40
Series
100-25 or
075-25
Series
.090
Gap
.317
Stroke
251
075-SD
254
.167
Stroke
Fixture
Not Actuated
Nickel silver/ID precious metal clad
18 milliohms
G
Nickel silver or phosphor bronze/OD gold plated
17 milliohms
20 milliohms
Standard material is heat-treated BeCu/plated gold over nickel
(see S option for steel plunger)
Spring Force
Preload
@ .317 Stroke
Material
X
Extra High
1.2 [34]
4.3 [122]
Music wire
U
POINT
Material/Finish
See
Points
Letter
SPRING
Digits
Ultra High
4.1 [116]
9.3 [264]
Letter
OPTION
B
D
Music wire
Spring Force
Fatigue Life (Cycles @ Stroke)
0.00
12.0
Description
Curved tube (pylon replacement)
Decreased stroke .250 [6.35]. Must select from 075-25 series spring forces with this option.
N
No probe lubrication (Removing probe lubrication greatly reduces cycle life.
Unlubricated probes are recommended only for low temperature applications)
S
10.0
Order the ET75-KIT (includes ET75 and IT75-FLUSH)
for removing a damaged socket from its mounting hole.
Sockets must be FLUSH before extraction.
Plunger Stroke (Millimeters)
2.54
5.08
7.62
10.16
0.317 [8.05]
Stroke
50K min @ .317 [8.05] max
10K min @ .317 [8.05] max
Order the IT75-FLUSH or IT75 SET .XXX (.000/.345
[0.00/8.75]) or AT75-KIT or AT75M-KIT adjustable tools
to install 075-25 sockets. Mounting holes in AT7000,
G10/FR4 or similar materials should be gauged at
.0530/.0550 [1.35/1.40] diameter using PG75 pin gauge.
Use PT100/75 to install 075-40 probes.
Full stroke .400 [10.16]
Working stroke: up to .317 [8.05]
Operating temp.: 40°F to 250°F [5°C to 120°C]
Current rating (for single probe in ambient air
with 70°F [20°C] rise): 6.5 Amps
283
* 0.350 (8.89) max stroke for "U" Spring
*U
8.0
227
170
6.0
Heat-treated steel/plated gold over nickel (see points for availability)
4.0
113
X
25
example: 075 - SDG250W
Letter
Material/Finish
G
Nickel silver/OD gold plated
N
Nickel silver/no finish
S
Stainless steel/no finish
Digit
Description
0
Single press ring located at .300 [7.62]
1
Single press ring located at .395 [10.03]
4
Single extra long press ring
Letter
A in (mm)
B in (mm)
Round pin
1.480 [37.59]
.410 [10.44]
Round pin
1.617 [41.07]
.547 [13.89]
R3*
Round pin
1.286 [32.66]
.216 [5.49]
R5*
Order the PE75 for removing 075-40 probes from its
socket. (Not for use with headless point styles).
Description
Round pin
2.017 [51.23]
.947 [24.05]
.429 [10.90]
M
Male round tube
N
No termination
S
Solder cup
R*
R1*
No option required
0.0
0.000
0.100
0.200
0.300
0.400
Plunger Stroke (Inches)
26
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Square wire wrap pin
1.499 [38.08]
Square wire wrap pin
1.764 [44.81]
.694 [17.63]
W2*
57
2.0
W*
W1*
(blank)
Notes:
Not available in
1 or 4 press ring
Not available in
G tube material
Not available in S
tube material/finish
Not available in M
or S termination
Available only in
S tube material
and 0 press ring
Available only in
M termination
Square wire wrap pin
2.114 [53.70]
US Patent No. 4,885,539
P
SOCKET P/N: 075 - SD
(see pages 56 & 57)
TUBE
Average Resistance @ 250 mV
Nickel silver/no finish
Installation and Extraction Tools
Mechanical
Material/Finish
N
Probe Specifications
Force (Grams)
TUBE
Letter
- Chisel
PRESS RING
X-
40
example: 075 - PRP4003X
Force (Ounces)
PROBE P/N: 075 - PR
53
34 - Crown
In-Circuit
Test Position
TERMINATION
09 - Serrated
Functional
Test Position
.075 [1.91] Centers .400 [10.16] Stroke
Actual Size
Actual Size
1.044 [26.52]
* Pin material: Phosphor bronze/gold plated over nickel
All specifications subject to change without notice. All dimensions are in inches [mm]. All spring forces in ounces [gms].
© 2005 QA Technology Company, Inc
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