Kelvin (4-Wire) Test Probes
F819 Kelvin Probe
F819 is a Kelvin probe series in the EMSGLOB range. It works at a pitch down to 12.0 mm / 472 mil, has an overall length of 50.3 mm and offers 5 mm of working travel.
Electrically it is specified for a rated current of 10 A, a typical resistance of 1 mΩ and an operating range of -45 °C to +100 °C. There are 2 catalogue part numbers in this series, covering 1 tip or head style such as Concave with drill hole stepped. The plunger is beryllium copper with gold plating, and the barrel is brass with gold plating.
Specifications
| Structure | Coaxial Probe |
|---|---|
| Pitch | 12.0 mm / 472 mil |
| Operating temperature | -45 °C to +100 °C |
| Total length | 50.3 mm |
| Protrusion height | 15.8 mm |
| Barrel diameter | 7.4 mm |
| Tip style diameter | 0.9 mm |
| Tip style diameter 2 | 0.6 mm |
| Press ring diameter | 8 mm |
| Collar diameter | 8 mm |
| Tip style | 50 – Concave with drill hole stepped |
| Tip style 2 | 12 |
| Plunger material | Beryllium copper |
| Plunger material 2 | Beryllium copper |
| Plunger plating | Gold |
| Plunger plating 2 | Gold |
| Barrel material | Brass |
| Barrel plating | Gold |
| Spring material | High-grade steel |
| Spring material 2 | Spring steel |
| Spring plating | Uncoated |
| Spring plating 2 | Silver |
| Preload | 900 cN |
| Preload 2 | 75 cN |
| Spring force | 1500 cN |
| Spring force 2 | 130 cN |
| Nominal travel | 5 mm |
| Nominal travel 2 | 3 mm |
| Maximum travel | 6 mm |
| Maximum travel 2 | 5.8 mm |
| Continuous current | 10 A |
| Continuous current 2 | 4 A |
| Typical contact resistance | 1 mΩ |
| Typical contact resistance 2 | 20 mΩ |
| Tool size | 6 mm |
Values as listed for this series. Confirm the exact data for your part number with your quotation.
Applications
- Four-wire (Kelvin) resistance measurement
- Low-resistance measurement on shunts, joints and power paths
- Battery and power component testing
- Measurement where contact resistance would distort the result
Part numbers (2)
| Part number | DUT | Tool size |
|---|---|---|
| F81912B0001G2020 | HSD-FEMALE | 6.0 mm |
| F81912B0002G2020 | HSD Female | – |
FAQ
What pitch and length is F819?
F819 has a pitch of 12.0 mm / 472 mil, total length of 50.3 mm and protrusion height of 15.8 mm. The full dimension list is in the specification table on this page.
How much current can F819 carry?
The rated continuous current is 10 A, with a typical resistance of 1 mΩ.
Which part numbers and tip styles are available for F819?
2 part numbers are listed, for example F81912B0001G2020, F81912B0002G2020. Tip or head styles include Concave with drill hole stepped. The table on this page lists every part number with its tip and spring data.
What temperature range is F819 rated for?
F819 is specified for -45 °C to +100 °C.
How do I get a price or sample for F819?
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.
Enquire / Request a quote
Tell us the F819 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.