ICT/FCT Spring Test Probes · 50 mil
F112 ICT/FCT Test Probe
F112 is an ICT/FCT test probe series in the EMSGLOB range, listed under 50 mil. It suits a minimum pitch of 1.27 mm / 50 mil, has an overall length of 16.5 mm and offers 2 mm of working travel.
Electrically it is specified for a rated current of 3 A, a typical resistance of 35 mΩ and an operating range of -45 °C to +80 °C. There are 4 catalogue part numbers in this series, covering 4 tip or head styles such as Concave stepped, Spherical, Spherical stepped, Conical 30°. The plunger is beryllium copper with gold plating, and the barrel is bronze with gold plating.

Specifications
| Structure | Basic Contact Probe |
|---|---|
| Pitch | 1.27 mm / 50 mil |
| Operating temperature | -45 °C to +80 °C |
| Additional definition | NON MAGNETIC |
| Total length | 16.5 mm |
| Barrel diameter | 0.69 mm |
| Plunger material | Beryllium copper |
| Plunger plating | Gold |
| Barrel material | Bronze |
| Barrel plating | Gold |
| Spring material | Copper |
| Spring plating | Gold |
| Spring force | 40 cN |
| Nominal travel | 2 mm |
| Maximum travel | 2.8 mm |
| Pointing accuracy | ± 0.09 mm |
| Continuous current | 3 A |
| Typical contact resistance | 35 mΩ |
| Protrusion height (range) | 3.8 – 4 mm |
| Tip style diameter (range) | 0.5 – 0.9 mm |
| Preload (range) | 4 – 6 cN |
Values as listed for this series. Confirm the exact data for your part number with your quotation.
Applications
- In-circuit testing (ICT) of assembled PCBs
- Functional testing (FCT) of modules and finished boards
- Bed-of-nails test fixtures and adapters
- Contacting pads, vias, pins and wire-wrap posts
- Threaded, push-back and anti-rotation designs for special fixture layouts

Part numbers (4)
| Part number | Tip style | Tip style diameter | Preload | Protrusion height |
|---|---|---|---|---|
| F11205B090G040 | 05 – Concave stepped | 0.9 mm | 6 cN | 4 mm |
| F11211B050G040 | 11 – Spherical | 0.5 mm | 4 cN | 3.8 mm |
| F11212B090G040 | 12 – Spherical stepped | 0.9 mm | 6 cN | 4 mm |
| F11218B053G040 | 18 – Conical 30° | 0.53 mm | 6 cN | 4 mm |
FAQ
What pitch and length is F112?
F112 has a pitch of 1.27 mm / 50 mil, total length of 16.5 mm and protrusion height of 3.8 – 4 mm. The full dimension list is in the specification table on this page.
How much current can F112 carry?
The rated continuous current is 3 A, with a typical resistance of 35 mΩ.
Which part numbers and tip styles are available for F112?
4 part numbers are listed, for example F11205B090G040, F11211B050G040, F11212B090G040. Tip or head styles include Concave stepped, Spherical, Spherical stepped, Conical 30°. The table on this page lists every part number with its tip and spring data.
What temperature range is F112 rated for?
F112 is specified for -45 °C to +80 °C.
How do I get a price or sample for F112?
Send the part number, quantity and your application to sales@emsglob.com or call +91-7383235369, or use the enquiry form on the contact page. Prices are quoted per enquiry.
More ict/fct spring test probes
Enquire / Request a quote
Tell us the F112 part number, the quantity and your pitch, travel and current requirements, and the EMSGLOB team will reply with availability and a quotation. Drawings in STEP, IGES, PDF, DWG, DXF or ZIP are welcome.