Test fixture components for building and maintaining bed-of-nails fixtures
Probes, receptacles, guide pins, and pressure pins from Ingun, QA Technology, and other proven manufacturers — selected by the same engineers who build FixturFab fixtures. Available individually for teams building or maintaining fixtures in-house.
Components for the fixtures you build and maintain
Two reasons engineers visit this page:
Building or maintaining fixtures yourself
We carry components from the same manufacturers we source from for our own fixture production—Ingun, QA Technology, and others—so compatibility isn't a question. If you're on your second or third revision, you know where the complexity lives.
Considering whether to build or buy?
We support either path—components for DIY, or complete fixtures configured online and delivered in 2–3 weeks. Teams approaching first production runs often find that the fixture that worked for prototypes doesn't hold up at volume. Our build vs. buy guide walks through the real costs.
Fixture components by type
Start with electrical contact — your probe and receptacle selection drives everything else. Fixture hardware is standardized across tiers and easier to pick once your probe family is decided.
Electrical contact
Pogo Pins for PCB Test Fixtures: Selection Guide & Specs
Spring-loaded contact probes (pogo pins) that make electrical connections to your board's test points. Available in different tip styles, sizes, and current ratings to match your test point geometry and signal requirements.
View pogo pins for pcb test fixtures: selection guide & specsReceptacles & Sockets for Pogo Pins
Sockets that hold probes in the fixture's probe plate. Press-fit, solder-mount, and through-hole types for different plate designs. Must be series-matched to your probe family.
View receptacles & sockets for pogo pinsFixture hardware
Guide Pins
Spring-loaded and fixed pins that align your board in the fixture by engaging with mounting holes. Ensure repeatable positioning so probes hit the same test points every cycle.
View guide pinsPressure Pins
Acetal and POM pins that press the board down against the probes, ensuring solid electrical contact across all test points. Standard lengths for Dev, Dev Pro, and Ingun fixtures.
View pressure pinsBuild or buy? The math depends on your situation.
Some teams build fixtures in-house because they have dedicated ME resources, fixture expertise, and no timeline pressure. These components are the same parts we'd use for your project—and our probe selection guide and fixture documentation support your build.
For everyone else, the full analysis is in our build vs. buy guide. It covers hidden costs, break-even calculations, and the scenarios where each path makes sense.
Why source components from FixturFab
Selected by engineers who build fixtures every day
We source components from Ingun, QA Technology, EquipTest, and other manufacturers—and we know which ones to use where because we build fixtures with them every day. The shop carries the same range we source from for customer fixtures, so you're choosing from parts we've already validated in real applications.
Easy to reorder when probes wear out
Contact pins are wear items—after thousands of test cycles, spring force drops and contact reliability suffers. When it's time to replace probes, you reorder the same part numbers from the same source. No re-qualifying a new supplier or cross-referencing specs to find an equivalent. And if your testing needs eventually outgrow DIY, the components you already know are the same ones inside our configured fixtures.
One source for fixtures, components, and instrumentation
Configure a fixture through Studio, pick up replacement probes here, and add test equipment when you need it. No cross-referencing specs from three different suppliers to verify compatibility.
Source the components or skip the sourcing entirely
Browse components for your next fixture build — or configure a complete fixture in Studio and let us handle the assembly.