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 - 8 amps max. PA4AL Extra light spring   PA4AS Light spring   PA4AX Heavy spring   PA4AU Ultra Heavy spring	Tip Style CONCAVE HEAD STEEL - 8 amps max. ST-PA4AS Light spring   ST-PA4AU Ultra Heavy spring   ST-PA4AX Heavy spring
Tip Style SPEAR POINT - 8 amps max. PA4BS Light spring   PA4BE Extra heavy spring   PA4BX Heavy spring   PA4BU Ultra Heavy spring	Tip Style SPEAR POINT STEEL - 8 amps max. ST-PA4BS Light spring   ST-PA4BX Heavy spring   ST-PA4BE Extra Heavy spring   ST-PA4BU Ultra Heavy spring
Tip Style FLAT HEAD 1.5mm - 3 amps max. PA4FS Light spring   PA4FX Heavy spring	Tip Style SERRATED HEAD 1.5mm - 8 amps max. PA4HS Light spring   PA4HX Heavy spring   PA4HE Extra heavy spring   PA4HU Ultra heavy spring
Tip Style SERRATED HEAD 1.5mm STEEL - 8 amps max. ST-PA4HS Light spring   ST-PA4HU Ultra heavy spring   ST-PA4HX Heavy spring   ST-PA4HE Extra heavy spring	Tip Style SERRATED HEAD 2.0mm - 3 amps max. PA4HS-080 Light spring   PA4HX-080 Heavy spring
Tip Style SERRATED HEAD 2.5mm - 3 amps max. PA4HS-100 Light spring   PA4HX-100 Heavy spring	Tip Style SERRATED HEAD 3mm - 3 amps max. PA4HS-120 Light spring   PA4HX-120 Heavy spring
Tip Style SERRATED HEAD 4.0mm - 3 amps max. PA4HS-160 Light spring   PA4HX-160 Heavy spring	Tip Style REDUCED RADIUS - 8 amps max. (for connector applications) PA4JS-064 Light spring   PA4JL-064 Extra light spring   PA4JX-064 Heavy spring   PA4JU-064 Ultra heavy spring
Tip Style PLAIN RADIUS- 3 amps max. PA4JS Light spring   PA4JX Heavy spring   PA4JU Ultra Heavy spring	Tip Style STAR HEAD - 3 amps max. PA4MS Light spring   PA4MX Heavy spring   PA4MU Ultra heavy spring
Tip Style 0.5mm SMALL CROWN - 8 amps max. 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 - 8 amps max. PA4QPS-040 Light spring   PA4QPX-040 Heavy spring   PA4QPE-040 Extra heavy spring   PA4QPU-040 Ultra heavy spring	Tip Style PLAIN CROWN STEEL - 8 amps max. 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 - 8 amps max. PA4QS-050 Light spring   PA4QX-050 Heavy spring   PA4QU-050 Ultra heavy spring   PA4QE-050 Extra heavy spring	Tip Style 1.3mm CROWN - 8 amps max. - LEAD FREE LF-PA4QX-050 Heavy spring   LF-PA4QE-050 Ex heavy spring   LF-PA4QU-050 Ult Heavy spring
Tip Style 1.5mm CROWN - 3 amps max. PA4QS-060 Light spring   PA4QX-060 Heavy spring	Tip Style TULIP HEAD - 8 amps max. PA4RS Light spring   PA4RX Heavy spring   PA4RE Extra heavy spring   PA4RU Ultra heavy spring
Tip Style TULIP HEAD STEEL - 8 amps max. ST-PA4RS Light spring   ST-PA4RU Ultra heavy spring   ST-PA4RX Heavy spring   ST-PA4RE Extra heavy spring	Tip Style PLAIN PYRAMID 0.9mm - 8 amps max. 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 - 8 amps max. 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 - 8 amps max. PA4TS-041 Light spring   PA4TX-041 Heavy spring   PA4TE-041 Extra heavy spring   PA4TU-041 Ultra heavy spring
Tip Style SHARP PYRAMID STEEL - LEAD FREE 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 2.5mm PYRAMID HEAD Heavy spring PA4TX-2.5
Tip Style 3.5mm PYRAMID HEAD Heavy spring PA4TX-3.5	Tip Style SUPER SHARP 3-NEEDLE - 8 amps max. PA4VS Light spring   PA4VX Heavy spring   PA4VE Extra heavy spring   PA4VU Ultra heavy spring
Tip Style SUPER SHARP 3-NEEDLE STEEL - 8 amps max. ST-PA4VS Light spring   ST-PA4VX Heavy spring   ST-PA4VE Extra heavy spring   ST-PA4VU Ultra heavy spring	Tip Style 8 POINT CROWN HEAD - 8 amps max. PA4ZS Light spring   PA4ZX Heavy spring   PA4ZE Extra Heavy spring   PA4ZU Ultra Heavy spring
Lead-Free Solder Tip Style SUPER-SHARP BLADE - 8 amps max. - 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 - 8 amps max. - LEAD FREE LF-PA4IX Heavy spring   LF-PA4IE Ex heavy spring   LF-PA4IU Ult heavy spring
Lead-Free Solder Tip Style ROBUST 90° BLADE - 8 amps max. - LEAD FREE LF-PA418X H spring   LF-PA418E Ex heavy spring   LF-PA418U Ult heavy spring	Tip Style STEEL CROSS BLADE - 8 amps max. ST-PA4LS Light spring   ST-PA4LX Heavy spring   ST-PA4LU Ultra heavy spring
Tip Style SHARP DAGGER - 8 amps max. LEAD FREE LF-PA4TX-042 Heavy spring   LF-PA4TE-042 Ex heavy spring   LF-PA4TU-042 Ult heavy spring	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