IP125B EVERETT CHARLES TECH, IP125B Datasheet - Page 3

• Manufacturer Part Number: IP125B
• Description: 50B6830
• Manufacturer: EVERETT CHARLES TECH

Specifications of IP125B

• Connector Type: Test Point
• Current Rating: 8A
• Spring Force Initial: 6.1oz
• Spring Force Working Travel: 16.0oz
• Contact Material: Beryllium Copper
• Body Material: Beryllium Copper
• Rohs Compliant: Yes
• Body Plating: Gold Flash/Nickel

Test Probe Selection
loaded, conventional or SMT PCBs,
you can maximize your testing effi-
ciency by selecting the correct
probe. Probes are manufactured in
a combination of sizes (dimension-
al configurations), tip styles, and
spring pressures to meet a variety
of testing factors such as test pad
geometry, component lead length,
hole size, solder mask, and electri-
cal current/resistance rating. In
general, probes are divided into
two groups – bare board (short
stroke probes) and loaded board
(long stroke probes). Short stroke
probes usually have a full plunger
travel of .160" (4,06 mm) or less,
while the longer stroke probe is
typically .250" (6,35).
Centers
The Perfect Solution for Your Testing Problem
Probe Selection &
Mixed Test Center Applications
(1,27)
(1,91)
(2,54)
.050
.075
.100
Test
Whether you are testing bare or
Receptacle
Probe
True
Target
Plunger
Contact
Points
© Ostby Barton 2003 • 487 Jefferson Blvd., Warwick, Rhode Island 02886 • [phone]
P
Consult
Factory
(1,27)
IP271
MT54
.050
Full Plunger Travel
MT554
(2,54)
IP261
.100
IP40
Probe Plate
UUT
Drilled
Hole
Centerline
Enlarged View
Pogo-72
Pogo-25
Pogo-1
(6,35)
.250
Ostby Barton manufactures probes in a combination of
sizes (dimensional configurations), tip styles and spring
pressures to accommodate a variety of testing factors.
MIXED TEST CENTERS
on a PCB and you may need to mix
probe sizes within a test fixture. This
can be accomplished by selecting
probes with a similar plunger travel
and mounting them accordingly.
SPRING PRESSURE
spring pressures. Use the light spring
pressure in densely populated areas
of your vacuum fixture to insure
proper actuation. High pressure
springs penetrate contamination more
effectively, and should be used in
low density areas or in mechanically
actuated fixtures where vacuum is
not used. As a rule of thumb, use
high pressure when possible. If you
can’t “pull” a sufficient vacuum on
your board, then the spring pressure
per sq. inch may exceed atmospheric
pressure and a light spring pressure
may be needed. Spring forces may
be ± 20%.
SMT Probes
center SMT Test Probes are available.
These probes are designed for use
in applications where probe tip to
PCB target accuracy and electrical
performance is critical. Look for the
“SMT” symbol in this catalog as
your guide in selecting a SMT probe.
plunger tip from the centerline of the
mounting location is considered the
pointing accuracy. The buildup of
tolerances between components,
as well as the probe design and
assembly techniques, dictate the
achievable pointing accuracy for a
particular probe. While critical to the
In some cases, test centers vary
Most probe series have several
A full line of 50 mil (1,27 mm)
The radial movement of the
POINTING ACCURACY (P)
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success of SMT PCB testing,
it is but one consideration in
maximizing tip-to-target accuracy.
Other factors include fixture and
PCB manufacturing tolerances.
These include tooling pin alignment,
drill hole perpendicularity, probe
platen flatness as well as PCB
artwork alignment.
PogoPlus
susceptible to false opens – that is,
transient electrical discontinuities
that cause good products to “fail”
during test. Revolutionary PogoPlus
probes eliminate probe-induced
false opens, saving you the time,
money and trouble of needless
product retesting.
mance of the PogoPlus is due to
the interaction between the spring,
captured ball and plunger, which
forces the plunger into continuous
contact with the barrel wall at all
times. The result is uninterrupted
electrical continuity and low overall
resistance that can’t be equaled by
any other “high performance” probe.
be the world’s most durable probe
with features like optional stainless-
steel MicroSharp™ tips, tough
plating, a larger spring volume and
enhanced pointing precision.
Conventional bias-type probes are
The unrivaled electrical perfor-
The PogoPlus is also designed to
www.ectinfo.com
®
Series probes
Dimensions in inches (millimeters)
Pointing Accuracy
receptacle in
probe plate
termination
Press ring,
flush with
receptacle
receptacle
wire-wrap
receptacle
for use in
available.
Detents,
probe in
Plunger
vacuum
Tip
fixtures
Several
retains
Spring
retains
Sealed
Barrel
Shaft
styles
W-2,
1