Interfacing Components
General Purpose Test Probes
ATE Test Probes
Standalone Bench-top Test Jigs
Specialist Test Products

General Purpose Test Probes - Medium Reach -

PA4 Series

A medium reach, general purpose test probe for testing at a minimum of 2.54mm centres

Test Probe Specification

Full travel
6.35mm (.250")
Working travel
4.24mm (.167")
Spring force
at wkg travel
'S' Light spring
114g (4.0oz)
'X' Heavy spring
170g (6.0oz)
'U' Ultra heavy spring
283g (10.0oz)
Current rating DC (max)
cont shown with tip style
Minimum test centres
2.54mm (.100")

Receptacle Specification

Mounting hole size: 1.7/1.75mm.
1.75mm drill is most commonly used:
Drill part no. DA3. RIT tool part no. TA3, TA4A

How to Use


See receptacles at bottom of page

For pricing, availability or to place an order
click on a part no.

Tip Style

CONCAVE HEAD

CONCAVE HEAD
PA4AL Extra light spring  PA4AS Light spring  
PA4AX Heavy spring  PA4AU Ultra Heavy spring  

Tip Style

CONCAVE HEAD

CONCAVE HEAD
PA4AS-2.0 Light spring  PA4AX-2.0 Heavy spring  

Tip Style

SPEAR POINT

SPEAR POINT
PA4BS Light spring  PA4BX Heavy spring  
PA4BE Extra heavy spring  PA4BU Ultra Heavy spring  

Tip Style

DOME HEAD

DOME HEAD
PA4DS Light spring  PA4DX Heavy spring  

Tip Style

FLAT HEAD 1.5mm

FLAT HEAD 1.5mm
PA4FS Light spring  PA4FX Heavy spring  

Tip Style

SERRATED HEAD 1.5mm

SERRATED HEAD 1.5mm
PA4HS Light spring  PA4HX Heavy spring  
PA4HE Extra heavy spring  PA4HU Ultra heavy spring  

Tip Style

SERRATED HEAD 2.0mm

SERRATED HEAD 2.0mm
PA4HS-080 Light spring  PA4HX-080 Heavy spring  

Tip Style

SERRATED HEAD 2.0mm Light spring

SERRATED HEAD 2.0mm Light spring

PA4HS-080

Tip Style

SERRATED HEAD 2.5mm

SERRATED HEAD 2.5mm
PA4HS-100 Light spring  PA4HS-100 Heavy spring  

Tip Style

SERRATED HEAD 3mm

SERRATED HEAD 3mm
PA4HS-120 Light spring  PA4HX-120 Heavy spring  

Tip Style

SERRATED HEAD 4.0mm

SERRATED HEAD 4.0mm
PA4HS-160 Light spring  PA4HX-160 Heavy spring  

Tip Style

REDUCED RADIUS

REDUCED RADIUS
PA4JS-064 Light spring  PA4JL-064 Extra light spring  
PA4JX-064 Heavy spring  PA4JU-064 Ultra heavy spring  

Tip Style

PLAIN RADIUS

PLAIN RADIUS
PA4JS Light spring  PA4JX Heavy spring  
PA4JU Ultra Heavy spring   

Tip Style

PLAIN FLAT

PLAIN FLAT
PA4CS Light spring  PA4CX Heavy spring  

Tip Style

0.5mm SMALL CROWN

0.5mm SMALL CROWN
PA4QS-018 Light spring  PA4QX-018 Heavy spring  
PA4QU-018 Ultra heavy spring   

Tip Style

0.9mm PLAIN CROWN

0.9mm PLAIN CROWN
PA4QPS-040 Light spring  PA4QPX-040 Heavy spring  
PA4QPE-040 Extra heavy spring  PA4QPU-040 Ultra heavy spring  

Tip Style

1.3mm CROWN

1.3mm CROWN
PA4QS-050 Light spring  PA4QX-050 Heavy spring  
PA4QU-050 Ultra heavy spring  PA4QE-050 Extra heavy spring  

Tip Style

1.5mm CROWN

1.5mm CROWN
PA4QS-060 Light spring  PA4QX-060 Heavy spring  

Tip Style

2.00mm crown head

2.00mm crown head
PA4QS-080 Light spring  PA4QX-080 Heavy spring  

Tip Style

8 POINT CROWN HEAD

8 POINT CROWN HEAD
PA4ZX Heavy spring  PA4ZE Extra Heavy spring  
PA4ZS Light spring  PA4ZU Ultra Heavy spring  

Tip Style

SHARP PYRAMID

SHARP PYRAMID
PA4TS-041 Light spring  PA4TX-041 Heavy spring  
PA4TE-041 Extra heavy spring  PA4TU-041 Ultra heavy spring  

Tip Style

1.5mm PYRAMID HEAD

1.5mm PYRAMID HEAD
PA4TS Light spring  PA4TX Heavy spring  

Tip Style

2.0mm PYRAMID HEAD

2.0mm PYRAMID HEAD
PA4TS-2.0 Light spring  PA4TX-2.0 Heavy spring  

Receptacle

CRIMP

CRIMP

RA4C

Receptacle

SOLDER-IN

SOLDER-IN

RA4P

Receptacle

SOLDER CUP - PRESS RING

SOLDER CUP - PRESS RING

RA4S12

Receptacle

SOLDER CUP - Stop collar

SOLDER CUP - Stop collar

RA4SF

Receptacle

SOLDER CUP

SOLDER CUP

RA4S

Receptacle

WIRE-WRAP

WIRE-WRAP

RA4W