ICT/FCT Spring Test Probes · 100 mil
F772 ICT/FCT Test Probe
F772 is an ICT/FCT test probe series in the EMSGLOB range, listed under 100 mil. It is laid out for 2.54 mm / 100 mil centre spacing, is 32 – 37 mm long overall and offers 4 mm of working travel.
Its datasheet values are a rated current of 5 A and a typical resistance of 20 – 100 mΩ. There are 70 catalogue part numbers in this series, covering 16 tip or head styles such as Conical 60°, Concave stepped, Serrated stepped, Hexagonal 90° stepped. The barrel is nickel silver with gold plating.

Specifications
| Structure | Basic Contact Probe |
|---|---|
| Pitch | 2.54 mm / 100 mil |
| Barrel diameter | 1.66 mm |
| Barrel material | Nickel silver |
| Barrel plating | Gold |
| Nominal travel | 4 mm |
| Maximum travel | 5 mm |
| Pointing accuracy | ± 0.08 mm |
| Continuous current | 5 A |
| Total length (range) | 32 – 37 mm |
| Protrusion height (range) | 10 – 15 mm |
| Tip style diameter (range) | 0.63 – 4 mm |
| Press ring diameter (range) | 2.04 – 2.05 mm |
| Collar diameter (range) | 2.04 – 2.05 mm |
| Preload (range) | 20 – 200 cN |
| Spring force (range) | 80 – 400 cN |
| Typical contact resistance (range) | 20 – 100 mΩ |
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 (70)
| Part number | Tip style | Tip style diameter | Spring force | Preload | Total length | Plunger material |
|---|---|---|---|---|---|---|
| F77203B130G150 | 03 – Conical 60° | 1.3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77203B130G300 | 03 – Conical 60° | 1.3 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B180G150 | 05 – Concave stepped | 1.8 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B180G220 | 05 – Concave stepped | 1.8 mm | 220 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B180G300 | 05 – Concave stepped | 1.8 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B200G080 | 05 – Concave stepped | 2 mm | 80 cN | 30 cN | 32 mm | Beryllium copper |
| F77205B200G150 | 05 – Concave stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B200G300 | 05 – Concave stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B200G300H | 05 – Concave stepped | 2 mm | 300 cN | 100 cN | 32 mm | Beryllium copper |
| F77205B250G150 | 05 – Concave stepped | 2.5 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B300G150 | 05 – Concave stepped | 3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77205B400G150 | 05 – Concave stepped | 4 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B150G150 | 06 – Serrated stepped | 1.5 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B150G300 | 06 – Serrated stepped | 1.5 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B150G300H | 06 – Serrated stepped | 1.5 mm | 300 cN | 50 cN | 32 mm | Beryllium copper |
| F77206B180G150 | 06 – Serrated stepped | 1.8 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B180G150E13 | 06 – Serrated stepped | 1.8 mm | 150 cN | 20 cN | 35 mm | Beryllium copper |
| F77206B180G300 | 06 – Serrated stepped | 1.8 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B180G300E13 | 06 – Serrated stepped | 1.8 mm | 300 cN | 60 cN | 35 mm | Beryllium copper |
| F77206B200G150 | 06 – Serrated stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B200G150E15 | 06 – Serrated stepped | 2 mm | 150 cN | 20 cN | 37 mm | Beryllium copper |
| F77206B200G150IK05 | 06 – Serrated stepped | 2 mm | 150 cN | 60 cN | 32.5 mm | Beryllium copper |
| F77206B200G220 | 06 – Serrated stepped | 2 mm | 220 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B200G300 | 06 – Serrated stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B200G300H | 06 – Serrated stepped | 2 mm | 300 cN | 50 cN | 32 mm | Beryllium copper |
| F77206B250G150 | 06 – Serrated stepped | 2.5 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B250G150H | 06 – Serrated stepped | 2.5 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B250G300 | 06 – Serrated stepped | 2.5 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77206B250G300E13 | 06 – Serrated stepped | 2.5 mm | 300 cN | 60 cN | 35 mm | Beryllium copper |
| F77206B250G400 | 06 – Serrated stepped | 2.5 mm | 400 cN | 160 cN | 32 mm | Beryllium copper |
| F77206S180P300E13 | 06 – Serrated stepped | 1.8 mm | 300 cN | 60 cN | 35 mm | Steel |
| F77207S175L150 | 07 – Hexagonal 90° stepped | 1.75 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77207S200L150 | 07 – Hexagonal 90° stepped | 2 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77207S200L300 | 07 – Hexagonal 90° stepped | 2 mm | 300 cN | 60 cN | 32 mm | Steel |
| F77207S200L300H | 07 – Hexagonal 90° stepped | 2 mm | 300 cN | 50 cN | 32 mm | Steel |
| F77210S063N150 | 10 – Flexible needle | 0.63 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77211B064G150 | 11 – Spherical | 0.64 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77211B064G300 | 11 – Spherical | 0.64 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77211B070G150 | 11 – Spherical | 0.7 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77211B100G150 | 11 – Spherical | 1 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77211B130G150 | 11 – Spherical | 1.3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77211B130G300 | 11 – Spherical | 1.3 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77212B150G150 | 12 – Spherical stepped | 1.5 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77212B200G150 | 12 – Spherical stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77212B200G300 | 12 – Spherical stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77214S200L150 | 14 – 4-point crown stepped (self-cleaning) | 2 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77214S200L300 | 14 – 4-point crown stepped (self-cleaning) | 2 mm | 300 cN | 60 cN | 32 mm | Steel |
| F77215B200G150 | 15 – Triangular 45° stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77215B200G300 | 15 – Triangular 45° stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77217B200G150 | 17 – Flat stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77217B200G300 | 17 – Flat stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77217B200G300H | 17 – Flat stepped | 2 mm | 300 cN | 100 cN | 32 mm | Beryllium copper |
| F77217B300G150 | 17 – Flat stepped | 3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77218B130G150 | 18 – Conical 30° | 1.3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77218B130G300 | 18 – Conical 30° | 1.3 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77218S080N150 | 18 – Conical 30° | 0.8 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77221B130G300H | 21 – 4-point crown (self-cleaning) | 1.3 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77221S130L150 | 21 – 4-point crown (self-cleaning) | 1.3 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77221S130L300 | 21 – 4-point crown (self-cleaning) | 1.3 mm | 300 cN | 60 cN | 32 mm | Steel |
| F77221S130L300E13 | 21 – 4-point crown (self-cleaning) | 1.3 mm | 300 cN | 80 cN | 35 mm | Steel |
| F77228B200G150 | 28 – 4-point crown stepped | 2 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77228B200G300 | 28 – 4-point crown stepped | 2 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77230B130G150 | 30 – Triangular 45° | 1.3 mm | 150 cN | 60 cN | 32 mm | Beryllium copper |
| F77230B130G300 | 30 – Triangular 45° | 1.3 mm | 300 cN | 60 cN | 32 mm | Beryllium copper |
| F77233S130L150 | 33 – Square lance 38° | 1.3 mm | 150 cN | 60 cN | 32 mm | Steel |
| F77233S130L300 | 33 – Square lance 38° | 1.3 mm | 300 cN | 60 cN | 32 mm | Steel |
| F77233S130P300HP | 33 – Square lance 38° | 1.3 mm | 300 cN | 200 cN | 32 mm | Steel |
| F77233S130R300 | 33 – Square lance 38° | 1.3 mm | 300 cN | 60 cN | 32 mm | Steel |
| F77263S200L300E11 | 63 – 8-point crown stepped (self-cleaning) | 2 mm | 300 cN | 80 cN | 33 mm | Steel |
| F77263S230L300 | 63 – 8-point crown stepped (self-cleaning) | 2.3 mm | 300 cN | 60 cN | 32 mm | Steel |
FAQ
What pitch and length is F772?
F772 has a pitch of 2.54 mm / 100 mil, total length of 32 – 37 mm and protrusion height of 10 – 15 mm. The full dimension list is in the specification table on this page.
How much current can F772 carry?
The rated continuous current is 5 A, with a typical resistance of 20 – 100 mΩ.
Which part numbers and tip styles are available for F772?
70 part numbers are listed, for example F77203B130G150, F77203B130G300, F77205B180G150. Tip or head styles include Conical 60°, Concave stepped, Serrated stepped, Hexagonal 90° stepped, Flexible needle, Spherical. The table on this page lists every part number with its tip and spring data.
How do I get a price or sample for F772?
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 F772 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.