PA4 & ST-PA4 Series (2.54mm centres)

2.54mm / 0.10" test centres
The PA4 Series is the universal size for use at 2.54mm test centres in the majority of ATE test fixtures. It has a very wide range of tip styles for almost all test targets. Additionally, a wide choice of spring forces is available. The ST-PA4 series adds hardened steel tips which ensure an exceptional resistance to wear in high volume PCB production runs. The LF-PA4 series has hardened tips, extra resilient plated surfaces and an enhanced pre-loaded spring pressure to enable good penetration of the tough residual contamination often found on the surface of many lead-free solders.

Specification Details

Test Probe Specification

Full travel
6.35mm (.250″)
Working travel
4.24mm (.167″)
Spring force
at wkg travel
‘L’ Extra light spring
57g (2.0oz)
‘S’ Light spring
114g (4.0oz)
‘X’ Heavy spring
170g (6.0oz)
‘E’ Extra heavy
227g (8.0oz)
‘U’ Ultra heavy spring
283g (10.0oz)
Current rating DC (maximum continuous)
8 amps unless otherwise shown in extra specifications tab
Minimum test centres (except for large heads)
2.54mm (.100″)
Temperature range
-55’C – +150’C (except where shown on certain products)

Receptacle Specification

Mounting hole size: 1.70mm softer material/1.75mm harder material.


1.70mm holes, drill part no. DA3

1.75mm holes, drill part no.DA3A

How To Use

Product Selection (PDF)
Watch our YouTube video about test probe and receptacle selection
Fitment & Usage (PDF)
After Care (PDF)

 

For pricing, availability or to place an order, click on a part no. below.
See receptacles and tools at bottom of page.

Tip Style - Flat head 1.5mm - 3 amps max.
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 4
Tip Style - Serrated head 2.0mm - 3 amps max.
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 7
Tip Style - Serrated Head 2.5mm - 3 amps max.
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 8
Tip Style - Serrated head 3mm
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 9
Tip Style - Serrated head 4mm - 3 amps max.
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 10
Tip Style - Small Crown, Steel - Lead Free
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 15
Tip Style - 1.5mm Crown - 3 amps max.
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 20
Tip Style - 1.5mm Pyramid Head
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 27
Tip Style - 2.0mm Pyramid Head
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 28
Tip Style - 2.5mm Pyramid Head
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 29
Tip Style - 2.5mm Pyramid Head
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 30
Receptacle - 0.64mm Round Pin
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 37
Receptacle - Crimp
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 38
Receptacle - Solder Cup
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 39
Receptacle - Wire Wrap
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 40
Receptacle - Wire Wrap
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 41
Receptacle - Wire wrap
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 42
Receptacle - Wire Wrap
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 43
Receptacle - Wire Wrap
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 44
Receptacle - 1.0mm Round Pin
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 45
Receptacle Insertion Tool - For RA3 and RA4 series receptacles
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 46
Receptacle Insertion Tool -For RA3 and RA4 series receptacles
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 47
Tungsten carbide drill bits for probe plates
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 48
Receptacle Removal Tool - For all RA4 and RA3 receptacles except RA3SF & RA4SF
Coda Systems | PA4 & ST-PA4 Series (2.54mm centres) 49