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For the very fine pitch testing of semi-conductor devices and PCBs down to 0.46mm centres

A range of microprobes designed to allow very fine pitch testing of PCBs, substrates, semiconductors and devices, from 0.46mm to 0.76mm test centres. The PM1, PM2 and PA0 series, are of a non-replaceable design; the space saved by not having a receptacle allows testing to as small as 0.46mm centres. The fitment method is a delicate yet simple process and you can have the option of a pre-attached cable, allowing easier connection to the test jig. The PM2R, PM3 R & PA0R series use a receptacle, giving the added advantage of probe replaceability, yet still allowing testing at a minimum spacing of 0.5mm. The receptacle has the convenient option of a pre-attached cable.

PM1 Series

Non-replaceable. No receptacle. 0.46mm test centres. Drill hole size - 0.27mm-0.28mm

Test Probe Specification

Full travel
1.00mm
Working travel
0.67mm
Spring force
at wkg travel
15g
Current rating DC (max)
1 Amp
Minimum test centres
0.46mm

Installation

The non-replaceable micro test probes feature a collar at the top of the barrel, which is used as a stop in the fitment process. Due to the minute barrel diameters and thin walls, it is imperative that the drilled hole diameter (0.27mm - 0.28mm) and straightness are very accurate.

Usually, multi-plate fixtures containing no less than 3 plates are used to retain large multiples of probes.

Otherwise a block of stable material which will allow reliable drilled holes is to be recommended, with the micro test probe fitted wire/tail first with tweezers, with a small amount of locking compound on the side to secure it, if required.

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PM2 Series

Non-replaceable. No receptacle. 0.51mm test centres. Drill hole size - 0.34mm to 0.36mm.

Test Probe Specification

Full travel
2.00mm
Working travel
1.33mm
Spring force
at wkg travel
48g
Current rating DC (max)
2 AmpS
Minimum test centres
0.51mm

Installation

The non-replaceable microprobes feature a collar at the top of the barrel, which is used as a stop in the fitment process. Due to the minute barrel diameters and thin walls, it is imperative that the drilled hole diameter (0.34mm - 0.36mm) and straightness are very accurate. We recommend that the pre-wired option is taken as connecting a cable to these probes is an extremely delicate operation.

Usually, multi-plate fixtures containing no less than 3 plates, are used to retain large multiples of probes.

Otherwise a block of stable material which will allow reliable drilled holes is to be recommended, with the microprobe fitted wire/tail first with tweezers, with a small amount of locking compound on the side to secure it, if required.

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PM2 'R' Series

Replaceable with receptacle. 0.51mm test centres

Test Probe Specification

Full travel
2.00mm
Working travel
1.33mm
Spring force
at wkg travel
48g
Current rating DC (max)
2 Amps
Minimum test centres
0.51mm

Receptacle Specification

Mounting hole size: 0.41/0.43mm.
A 0.40mm drill is recommended
Drill part no. DM2R

Installation

The receptacles of the replaceable micro test probes feature a collar at the top of the tube, which is used as a stop in the fitment process. Due to the minute tube diameters and thin walls, it is imperative that the drilled hole diameter and straightness are very accurate. It is recommended that the pre-wired option is taken - as connecting a cable to these receptacles is an extremely delicate operation.

Usually, multi-plate fixtures containing no less than 3 plates, are used to retain multiples of receptacles.

Otherwise, a block of stable material which will allow reliable drilled holes is to be recommended, with the receptacle fitted wire/tail first with tweezers. A small amount of locking compound may be required on the barrel to secure it. Then the microprobe may be pushed into the receptacle, tail first, using the tweezers, making sure light pressure is put onto the probe's collar, not onto the fragile plunger.

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PM3 'R' Series

Replaceable with receptacle. 0.64mm test centres

Test Probe Specification

Full travel
1.91mm
Working travel
1.27mm
Spring force
at wkg travel
30g
Current rating DC (max)
2 AmpS
Minimum test centres
0.64mm

Receptacle Specification

Mounting hole size: 0.52/0.55mm.
A 0.52mm drill is most commonly used:
Drill part no. DA0

Installation

The receptacles of the replaceable microprobes feature a collar at the top of the tube, which is used as a stop in the fitment process. Due to the minute tube diameters and thin walls, it is imperative that the drilled hole diameter & straightness are very accurate. It is recommended that the pre-wired option is taken - as connecting a cable to these receptacles is an extremely delicate operation.

Usually, multi-plate fixtures containing no less than 3 plates, are used to retain multiples of receptacles.

Otherwise a block of stable material which will allow reliable drilled holes is to be recommended, with the receptacle fitted wire/tail first with tweezers. A small amount of locking compound may be required on the barrel to secure it. Then the microprobe may be pushed into the receptacle, tail first, using the tweezers, making sure light pressure is put onto the probe's collar, not onto the fragile plunger.

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PM4 Series

Replaceable. Plug socket. 1mm test centres. Drill hole size - 0.75mm.

Test Probe Specification

Minimum test centre
1.0mm
Full travel
1.91mm
Working travel
1.27mm
Spring force
at wkg travel
49g
Current rating DC (max)
2 AmpS
Minimum test centres
0.75mm

Installation

The tail of this micro test probe plugs into a socket installed in a second block which is located beneath the probe plate. This allows the probe to be a replaceable item, without the extra width of a receptacle around it. The socket can either have a cable crimped or soldered to it. It can also accept the RM4T terminal plug.

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PA0 Series

Non-replaceable. No receptacle. 0.64mm test centres

Test Probe Specification

Full travel
.075" (1.91mm)
Working travel
.050" (1.27mm)
Spring force
initial
at wkg travel
0.39oz (11g)
1.39oz (39g)
Current rating DC (max)
2 Amps
Minimum test centres
.025" (.63mm)
Probe insertion tool
PIT0

INSTALLATION

The top of the PAO barrel is flared making its design different to many probes. This allows a high density of probes to be "pressed" directly into the probe plate eliminating the need for a receptacle or gluing. This "press-fit" feature also permits it to be installed in a variety of probe plate thicknesses and can be replaced relatively easily. The PAO is available with or without 30" of 30 AWG insulated wire attached. It is installed into the probe plate with a probe insertion tool (part no. PITO) or a pair of tweezers. Shrink tubing can be used on alternate probes to provide strain relief in the termination and to reduce the possibility of electrical shorting.

To replace the probe, the wire is cut at the termination and the probe is then pushed out of the probe plate.

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PA0 'R' Series

Replaceable with receptacle. 0.76mm test centres

Test Probe Specification

Full travel
.075" (1.91mm)
Working travel
.050" (1.27mm)
Spring force
initial
at wkg travel
0.39oz (11g)
1.39oz (39g)
Current rating DC (max)
2 Amps
Minimum test centres
.030" (.76mm)

Receptacle Specification

Mounting hole size: 0.67/0.70mm.
0.70mm drill is most commonly used:
Drill part no. DA0.
RIT tool part no. TA0

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