ICT/FCT Spring Test Probes
HCF731 ICT/FCT Test Probe
HCF731 is an ICT/FCT test probe series in the EMSGLOB range. It is laid out for 2.40 mm / 94 mil centre spacing, is 27.9 mm long overall and offers 3.5 mm of working travel.
Its datasheet values are a rated current of 5 A, a typical resistance of 30 mΩ and an operating range of -45 °C to +200 °C. It is ordered as part number HCF73106B130G500. The plunger is beryllium copper with gold plating, and the barrel is brass with gold plating.

Specifications
| Structure | Basic Contact Probe |
|---|---|
| Pitch | 2.40 mm / 94 mil |
| Operating temperature | -45 °C to +200 °C |
| Total length | 27.9 mm |
| Protrusion height | 9.4 mm |
| Barrel diameter | 1.37 mm |
| Tip style diameter | 1.3 mm |
| Press ring diameter | 1.85 mm |
| Collar diameter | 1.85 mm |
| Tip style | 06 – Serrated stepped |
| Plunger material | Beryllium copper |
| Plunger plating | Gold |
| Barrel material | Brass |
| Barrel plating | Gold |
| Spring material | High-grade steel |
| Spring plating | Uncoated |
| Preload | 145 cN |
| Spring force | 500 cN |
| Nominal travel | 3.5 mm |
| Maximum travel | 4.4 mm |
| Pointing accuracy | ± 0.08 mm |
| Continuous current | 5 A |
| Typical contact resistance | 30 mΩ |
| Thread | M1,4 |
| Tip style material | Beryllium copper |
| Tip style plating | Gold |
| Tool size | 1.4 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 (1)
| Part number |
|---|
| HCF73106B130G500 |
FAQ
What pitch and length is HCF731?
HCF731 has a pitch of 2.40 mm / 94 mil, total length of 27.9 mm and protrusion height of 9.4 mm. The full dimension list is in the specification table on this page.
How much current can HCF731 carry?
The rated continuous current is 5 A, with a typical resistance of 30 mΩ.
What temperature range is HCF731 rated for?
HCF731 is specified for -45 °C to +200 °C.
How do I get a price or sample for HCF731?
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 HCF731 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.