ATE Test Probes

PA4 & ST-PA4 Series

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.

Tip Style CONCAVE HEAD PA4AL Extra light spring   PA4AS Light spring   PA4AX Heavy spring   PA4AU Ultra Heavy spring	Tip Style CONCAVE HEAD STEEL ST-PA4AS Light spring   ST-PA4AU Ultra Heavy spring   ST-PA4AX Heavy spring
Tip Style SPEAR POINT PA4BS Light spring   PA4BE Extra heavy spring   PA4BX Heavy spring   PA4BU Ultra Heavy spring	Tip Style SPEAR POINT STEEL ST-PA4BS Light spring   ST-PA4BX Heavy spring   ST-PA4BE Extra Heavy spring   ST-PA4BU Ultra Heavy spring
Tip Style FLAT HEAD 1.5mm PA4FS Light spring   PA4FX Heavy spring	Tip Style SERRATED HEAD 1.5mm PA4HS Light spring   PA4HX Heavy spring   PA4HE Extra heavy spring   PA4HU Ultra heavy spring
Tip Style SERRATED HEAD 1.5mm STEEL ST-PA4HS Light spring   ST-PA4HU Ultra heavy spring   ST-PA4HX Heavy spring   ST-PA4HE Extra heavy spring	Tip Style SERRATED HEAD 2.0mm PA4HS-080 Light spring   PA4HX-080 Heavy spring
Tip Style SERRATED HEAD 2.5mm PA4HS-100 Light spring   PA4HS-100 Heavy spring	Tip Style SERRATED HEAD 3mm PA4HS-120 Light spring   PA4HX-120 Heavy spring
Tip Style SERRATED HEAD 4.0mm PA4HS-160 Light spring   PA4HX-160 Heavy spring	Tip Style REDUCED RADIUS PA4JS-064 Light spring   PA4JL-064 Extra light spring   PA4JX-064 Heavy spring   PA4JU-064 Ultra heavy spring
Tip Style PLAIN RADIUS PA4JS Light spring   PA4JX Heavy spring   PA4JU Ultra Heavy spring	Tip Style STAR HEAD PA4MS Light spring   PA4MX Heavy spring   PA4MU Ultra heavy spring
Tip Style STEEL NEEDLE PA4NX Heavy spring   PA4NU Ultra Heavy spring	Tip Style 0.5mm SMALL CROWN PA4QS-018 Light spring   PA4QX-018 Heavy spring   PA4QU-018 Ultra heavy spring
Tip Style SMALL CROWN STEEL - LEAD FREE LF-PA4QX-018 Heavy spring   LF-PA4QU-018 Ultra heavy spring	Tip Style 0.9mm PLAIN CROWN PA4QPS-040 Light spring   PA4QPX-040 Heavy spring   PA4QPE-040 Extra heavy spring   PA4QPU-040 Ultra heavy spring
Tip Style PLAIN CROWN STEEL ST-PA4QPS-040 Light spring   ST-PA4QPX-040 Heavy spring   ST-PA4QPE-040 Extra heavy spring   ST-PA4QPU-040 Ultra heavy spring	Tip Style 1.3mm CROWN PA4QS-050 Light spring   PA4QX-050 Heavy spring   PA4QU-050 Ultra heavy spring   PA4QE-050 Extra heavy spring
Tip Style 1.3mm CROWN - LEAD FREE LF-PA4QX-050 Heavy spring   LF-PA4QE-050 Ex heavy spring   LF-PA4QU-050 Ult Heavy spring	Tip Style 1.5mm CROWN PA4QS-060 Light spring   PA4QX-060 Heavy spring
Tip Style TULIP HEAD PA4RS Light spring   PA4RX Heavy spring   PA4RE Extra heavy spring   PA4RU Ultra heavy spring	Tip Style TULIP HEAD STEEL ST-PA4RS Light spring   ST-PA4RU Ultra heavy spring   ST-PA4RX Heavy spring   ST-PA4RE Extra heavy spring
Tip Style PLAIN PYRAMID 0.9mm PA4TS-036 Light spring   PA4TX-036 Heavy spring   PA4TE-036 Extra heavy spring   PA4TU-036 Ultra heavy spring	Tip Style PLAIN PYRAMID 0.9mm STEEL ST-PA4TS-036 Light spring   ST-PA4TX-036 Heavy spring   ST-PA4TE-036 Extra heavy spring   ST-PA4TU-036 Ultra heavy spring
Tip Style SHARP PYRAMID PA4TS-041 Light spring   PA4TX-041 Heavy spring   PA4TE-041 Extra heavy spring   PA4TU-041 Ultra heavy spring	Tip Style SHARP PYRAMID STEEL LF-PA4TX-041 Heavy spring   LF-PA4TE-041 Ex heavy spring   LF-PA4TU-041 Ult heavy spring
Tip Style 1.5mm PYRAMID HEAD PA4TS Light spring   PA4TX Heavy spring	Tip Style 2.0mm PYRAMID HEAD PA4TS-2.0 Light spring   PA4TX-2.0 Heavy spring
Tip Style SUPER SHARP 3-NEEDLE PA4VS Light spring   PA4VX Heavy spring   PA4VE Extra heavy spring   PA4VU Ultra heavy spring	Tip Style SUPER SHARP 3-NEEDLE STEEL ST-PA4VS Light spring   ST-PA4VX Heavy spring   ST-PA4VE Extra heavy spring   ST-PA4VU Ultra heavy spring
Tip Style 8 POINT CROWN HEAD PA4ZS Light spring   PA4ZX Heavy spring   PA4ZE Extra Heavy spring   PA4ZU Ultra Heavy spring	Lead-Free Solder Tip Style SUPER-SHARP BLADE - LEAD FREE LF-PA4KX Heavy spring   LF-PA4KE Ex heavy spring   LF-PA4KU Ult heavy spring
Lead-Free Solder Tip Style STEEL SHARP 90° BLADE - LEAD FREE LF-PA4IX Heavy spring   LF-PA4IE Ex heavy spring   LF-PA4IU Ult heavy spring	Lead-Free Solder Tip Style ROBUST 90° BLADE - LEAD FREE LF-PA418X H spring   LF-PA418E Ex heavy spring   LF-PA418U Ult heavy spring
Tip Style STEEL CROSS BLADE ST-PA4LS Light spring   ST-PA4LX Heavy spring   ST-PA4LU Ultra heavy spring	Tip Style SHARP DAGGER - LEAD FREE LF-PA4TX-042 Heavy spring   LF-PA4TE-042 Ex heavy spring   LF-PA4TU-042 Ult heavy spring
Tip Style Sharp dagger UH spring ST-PA4TU-042	Receptacle CRIMP RA4C
Receptacle SOLDER CUP RA4S	Receptacle 0.64mm ROUND PIN RA4R
Receptacle 1.0mm ROUND PIN RA4R-040	Receptacle WIRE-WRAP RA4W
Receptacle Receptacle - Wire wrap RA4W3	Receptacle WIRE WRAP RA4W12
Receptacle RECEPTACLE WIREWRAP RA4WL	Receptacle WIRE WRAP RA4WLL
Receptacle WIREWRAP RA4WLLL