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+44 (0) 191 387 1923


Map replacement


Peak Test Services Ltd

152a Front Street
Co. Durham
United Kingdom
+44 (0) 191 387 1923
+44 (0) 191 387 1994

Contact Us

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Pogo Connectors - Battery Contacts
High Current Block up to 600A for Contacting Pri

About Peak Test

Founded in 1986, Peak Test is the UK leader in the distribution of test probes and receptacles, it carries the most comprehensive range of probes, many of which are available ex-stock for next day delivery.

Peak Test are the UK distributor for Virginia Panel Corporation (VPC) Mass Interconnect, Optomistic LED Test and Voltera Prototype PCB Printer.

Peak Test Services is an ISO accredited Company.

The leading UK distributor of Spring Contact Test Probes and Test Accessories

COVID-19 STATEMENT: We are open for business and our objective is for everyone to remain safe with minimum disruption.

Our aim is for all promised delivery dates to be met however, in some circumstances it may be necessary to adjust some of these dates.

We remain committed in communicating fully with you to keep you updated at all times.

We can provide information and literature on solutions that may benefit any upcoming projects therefore please do not hesitate to contact us.

How do I select my part number?

Peak Test part numbers are made up of 3 sections:

  • Series of the probe
  • Head Style
  • Spring Pressure 


Choose your series for your application selecting the correct combination of test point size, travel, overall length and diameter of the probe barrel. Please see below for different combinations:


P25 = A standard ATE push fit probe

P15/G = A threaded (screw in) probe represented by the /G

P25L = A longer version probe

HSP25 = A high current probe (a ‘X’ also represents high current probes)

Head Styles

We offer a head style chart that displays different styles such as concave heads, pointed heads and chisel heads. This section of the part number also incorporates the diameter of the head.

Spring Pressure

The final part of the part number represents the spring pressure and is represented by a number. Each series have their own unique spring pressures represented by different numbers.


Our receptacles tend to begin with the letter R, followed by the series. The connection then completes the part number.

R25 = Standard R25 plug in receptacle

R15/G = Threaded screw in version

-W = Wire wrap

-S = Solder

-C = Crimp

-K = knurled

To view our full range of test probes available, please click here. Alternatively, do not hesitate to contact us via email or phone

To download this guide, please click here