Please be assured that Coda is open for business as usual. Some of our staff are working remotely and some are in the office.
Our office will now be open between 9am and 3pm. Between 3pm and 5pm please email us and our remote team will deal with your enquiry.
Also, due to extra precautions we are taking with goods-in, lead times may be a few days longer than normal.

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 and temperature rating
shown with each 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. below

Tip Style

CONCAVE HEAD - 8 amps max. / -55 to +150°C

CONCAVE HEAD - 8 amps max. / -55 to +150C

Tip Style

CONCAVE HEAD 3 amps max / -40to +105°C

CONCAVE HEAD 3 amps max / -40to +105C

Tip Style

CONCAVE HEAD

CONCAVE HEAD

PA4AS-2.0

Tip Style

CONCAVE HEAD

CONCAVE HEAD

PA4AX-2.0

Tip Style

SPEAR POINT - 8 amps max. / -55 to +150°C

SPEAR POINT - 8 amps max. / -55 to +150C

Tip Style

DOME HEAD - 3 amps max / -40 to +105°C

DOME HEAD - 3 amps max / -40 to +105C

Tip Style

DOME HEAD Light spring

DOME HEAD Light spring

PA4DS

Tip Style

DOME HEAD Heavy spring

DOME HEAD Heavy spring

PA4DX

Tip Style

FLAT HEAD 1.5mm - 3 amps max./ -40 to +105°C

FLAT HEAD 1.5mm - 3 amps max./ -40 to +105C

Tip Style

FLAT HEAD 1.5mm Light spring

FLAT HEAD 1.5mm Light spring

PA4FS

Tip Style

FLAT HEAD 1.5mm Extra heavy spring

FLAT HEAD 1.5mm Extra heavy spring

PA4FX

Tip Style

SERRATED HEAD 1.5mm - 8 amps max. / -55 to +150°C

SERRATED HEAD 1.5mm - 8 amps max. / -55 to +150C

Tip Style

SERRATED HEAD 2.0mm - 3 amps max./ -40 to +105C

SERRATED HEAD 2.0mm - 3 amps max./ -40 to +105C

Tip Style

SERRATED HEAD 2.0mm Light spring

SERRATED HEAD 2.0mm Light spring

PA4HS-080

Tip Style

SERRATED HEAD 2.0mm Heavy spring

SERRATED HEAD 2.0mm Heavy spring

PA4HX-080

Tip Style

SERRATED HEAD 2.5mm - 3 amps max./ -40 to +105°C

SERRATED HEAD 2.5mm - 3 amps max./ -40 to +105C

Tip Style

SERRATED HEAD 2.5mm Light spring

SERRATED HEAD 2.5mm Light spring

PA4HS-100

Tip Style

SERRATED HEAD 2.5mm Heavy spring

SERRATED HEAD 2.5mm Heavy spring

PA4HX-100

Tip Style

SERRATED HEAD 3mm - 3 amps max./ -40 to +105°C

SERRATED HEAD 3mm - 3 amps max./ -40 to +105C

Tip Style

SERRATED HEAD 3mm Light spring

SERRATED HEAD 3mm Light spring

PA4HS-120

Tip Style

SERRATED HEAD 3.0mm Heavy spring

SERRATED HEAD 3.0mm Heavy spring

PA4HX-120

Tip Style

SERRATED HEAD 4.0mm - 3 amps max./ -40 to +105°C

SERRATED HEAD 4.0mm - 3 amps max./ -40 to +105C

Tip Style

SERRDATED HEAD 4.0mm Light spring

SERRDATED HEAD 4.0mm Light spring

PA4HS-160

Tip Style

SERRATED HEAD 4.0mm Heavy spring

SERRATED HEAD 4.0mm Heavy spring

PA4HX-160

Tip Style

REDUCED RADIUS - 8 amps max. (for connector applications) / -55 to +150°C

REDUCED RADIUS - 8 amps max. (for connector applications) / -55 to +150C

Tip Style

PLAIN RADIUS- 3 amps max./ -40 to +105°C

PLAIN RADIUS- 3 amps max./ -40 to +105C

Tip Style

PLAIN FLAT 8 amps max / -55 to +150°C

PLAIN FLAT 8 amps max / -55 to +150C

Tip Style

PLAIN FLAT Light spring

PLAIN FLAT Light spring

PA4CS

Tip Style

PLAIN FLAT Heavy spring

PLAIN FLAT Heavy spring

PA4CX

Tip Style

0.5mm SMALL CROWN - 8 amps max./ -55 to +150°C

0.5mm SMALL CROWN - 8 amps max./ -55 to +150C

Tip Style

0.5mm SMALL CROWN Light spring

0.5mm SMALL CROWN Light spring

PA4QS-018

Tip Style

0.5mm SMALL CROWN Heavy spring

0.5mm SMALL CROWN Heavy spring

PA4QX-018

Tip Style

0.5mm SMALL CROWN Ultra Heavy spring

0.5mm SMALL CROWN Ultra Heavy spring

PA4QU-018

Tip Style

0.9mm PLAIN CROWN Light spring

0.9mm PLAIN CROWN Light spring

PA4QPS-040

Tip Style

0.9mm PLAIN CROWN Heavy spring

0.9mm PLAIN CROWN Heavy spring

PA4QPX-040

Tip Style

0.9mm PLAIN CROWN Extra heavy spring

0.9mm PLAIN CROWN Extra heavy spring

PA4QPE-040

Tip Style

0.9mm PLAIN CROWN Ultra heavy spring

0.9mm PLAIN CROWN Ultra heavy spring

PA4QPU-040

Tip Style

1.3mm CROWN Light spring

1.3mm CROWN Light spring

PA4QS-050

Tip Style

1.3mm CROWN Heavy spring

1.3mm CROWN Heavy spring

PA4QX-050

Tip Style

1.3mm CROWN Extra hvy spring

1.3mm CROWN Extra hvy spring

PA4QE-050

Tip Style

1.3mm CROWN Ultra heavy spring

1.3mm CROWN Ultra heavy spring

PA4QU-050

Tip Style

1.5mm CROWN - 3 amps max./ -40 to +105°C

1.5mm CROWN - 3 amps max./ -40 to +105C

Tip Style

1.5mm CROWN Light spring

1.5mm CROWN Light spring

PA4QS-060

Tip Style

1.5mm CROWN Heavy spring

1.5mm CROWN Heavy spring

PA4QX-060

Tip Style

2.00mm crown head 3 amps max / -40 to +105°C

2.00mm crown head  3 amps max / -40 to +105C

Tip Style

2.0mm Crown light spring

2.0mm Crown light spring

PA4QS-080

Tip Style

2.0mm Crown heavy spring

2.0mm Crown heavy spring

PA4QX-080

Tip Style

8 POINT CROWN HEAD - 8 amps max. / -55 to +150°C

8 POINT CROWN HEAD - 8 amps max. / -55 to +150C

Tip Style

SHARP PYRAMID Light spring

SHARP PYRAMID Light spring

PA4TS-041

Tip Style

SHARP PYRAMID Heavy spring

SHARP PYRAMID Heavy spring

PA4TX-041

Tip Style

SHARP PYRAMID Extra heavy spring

SHARP PYRAMID Extra heavy spring

PA4TE-041

Tip Style

SHARP PYRAMID Ultra heavy

SHARP PYRAMID Ultra heavy

PA4TU-041

Tip Style

1.5mm PYRAMID HEAD 3 amps max / -40 to +105°C

1.5mm PYRAMID HEAD  3 amps max / -40 to +105C

Tip Style

1.5mm PYRAMID HEAD Light spring

1.5mm PYRAMID HEAD Light spring

PA4TS

Tip Style

1.5mm PYRAMID HEAD Heavy spring

1.5mm PYRAMID HEAD Heavy spring

PA4TX

Tip Style

2.0mm PYRAMID HEAD 3 amps max / -40 to +105°C

2.0mm PYRAMID HEAD  3 amps max / -40 to +105C

Tip Style

2.0mm PYRAMID HEAD Light spring

2.0mm PYRAMID HEAD Light spring

PA4TS-2.0

Tip Style

2.0mm PYRAMID HEAD Heavy spring

2.0mm PYRAMID HEAD Heavy spring

PA4TX-2.0

Tip Style

2.5mm PYRAMID HEAD Heavy spring 3 amps max / -40 to +105°C

2.5mm PYRAMID HEAD Heavy spring  3 amps max / -40 to +105C

PA4TX-2.5

Tip Style

3.5mm PYRAMID HEAD Heavy spring 3 amps max /-40 to +105°C

3.5mm PYRAMID HEAD Heavy spring  3 amps max /-40 to +105C

PA4TX-3.5

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