ICT/FCT Spring Test Probes · F720, F730
F730 ICT/FCT Test Probe
F730 is an ICT/FCT test probe series in the EMSGLOB range, listed under F720, F730. It suits a minimum pitch of 1.27 mm / 50 mil, is 28.9 mm long overall and offers 3 – 4 mm of working travel.
Its datasheet values are a rated current of 3 A, a typical resistance of 50 mΩ and an operating range of -45 °C to +100 °C. There are 11 catalogue part numbers in this series, covering 9 tip or head styles such as Concave stepped, 06, Serrated stepped, Spherical. The plunger is beryllium copper, and the barrel is bronze with gold plating.

Specifications
| Structure | Basic Contact Probe |
|---|---|
| Pitch | 1.27 mm / 50 mil |
| Operating temperature | -45 °C to +100 °C |
| Total length | 28.9 mm |
| Barrel diameter | 0.68 mm |
| Press ring diameter | 1.16 mm |
| Collar diameter | 1.16 mm |
| Plunger material | Beryllium copper |
| Barrel material | Bronze |
| Barrel plating | Gold |
| Spring plating | Gold |
| Pointing accuracy | ± 0.08 mm |
| Continuous current | 3 A |
| Typical contact resistance | 50 mΩ |
| Thread | M0,9X0,175 |
| Tool size | 1.0 mm |
| Protrusion height (range) | 8.1 – 10.5 mm |
| Tip style diameter (range) | 0.4 – 1.2 mm |
| Preload (range) | 30 – 55 cN |
| Spring force (range) | 50 – 110 cN |
| Nominal travel (range) | 3 – 4 mm |
| Maximum travel (range) | 4.5 – 5 mm |
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 (11)
| Part number | Tip style | Tip style diameter | Spring force | Preload | Nominal travel | Plunger plating |
|---|---|---|---|---|---|---|
| F73005B080G100HS1 | 05 – Concave stepped | 0.8 mm | 100 cN | 50 cN | 3 mm | Gold |
| F73006B090G050 | 06 – Serrated stepped | 0.9 mm | 50 cN | 30 cN | 4 mm | Gold |
| F73006B090G110 | 06 | 0.9 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73006B120R110 | 06 – Serrated stepped | 1.2 mm | 110 cN | 55 cN | 4 mm | Rhodium |
| F73011B040G110 | 11 – Spherical | 0.4 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73012B050G110 | 12 – Spherical stepped | 0.5 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73012B064G110 | 12 | 0.64 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73012B075G110 | 12 – Spherical stepped | 0.75 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73016B040G110 | 16 | 0.4 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73017B064G110 | 17 | 0.64 mm | 110 cN | 55 cN | 4 mm | Gold |
| F73018B040G110 | 18 | 0.4 mm | 110 cN | 55 cN | 4 mm | Gold |
FAQ
What pitch and length is F730?
F730 has a pitch of 1.27 mm / 50 mil, total length of 28.9 mm and protrusion height of 8.1 – 10.5 mm. The full dimension list is in the specification table on this page.
How much current can F730 carry?
The rated continuous current is 3 A, with a typical resistance of 50 mΩ.
Which part numbers and tip styles are available for F730?
11 part numbers are listed, for example F73005B080G100HS1, F73006B090G050, F73006B090G110. Tip or head styles include Concave stepped, 06, Serrated stepped, Spherical, 12, Spherical stepped. The table on this page lists every part number with its tip and spring data.
What temperature range is F730 rated for?
F730 is specified for -45 °C to +100 °C.
How do I get a price or sample for F730?
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 F730 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.