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2
Using Probe Heads
Before connecting the QuickTip head to the tip, use the tack-putty (N5439-65201) included
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with the N2848A QuickTip probe head or the N2787A 3D probe positioner for securing the
probe amplifier to a rigid body near the DUT.
Connecting a QuickTip to the DUT
Use the following tips when soldering the QuickTips to your DUT:
• Orient the QuickTip vertically as shown in
• Solder the four leads to vias or surfaces.
Always mechanically strain-relieve the QuickTip head before using to protect both
CAUTION
your probe accessories and DUT from damage.
Resistor and wire leads on the QuickTip are factory trimmed to the proper length for use.
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Adding wire length to the tip of the mini-axial lead resistors or to the ground leads will
degrade the performance of the probe.
Soldering the ground wires is not required when making differential or single-ended (+ or –
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leads) measurements.
• When soldering to a via, always trim the lead close to the via's underside.
• If a lead is to be soldered to a surface and not a via, make a stronger solder joint
Be careful not to damage the tip wires when handling the QuickTips. Wires can be
CAUTION
carefully reshaped with tweezers or fingers if necessary.
The QuickTips are very fragile. They must be manufactured in this way in order to meet
CAUTION
the high-performance, high bandwidth applications they are intended for. Be
extremely careful when handling.
62
by bending the end of the lead 90°. For signal leads, bend the wire
approximately half way between the resistor and the end of the wire. Bend the
ground leads at about the same distance.
Figure 35
on page 61.
1130B-Series Probes User's Guide
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