RF (Radio Frequency) Test Probes · Automotive
HF819 RF Test Probe
HF819 is an RF test probe series in the EMSGLOB range, listed under Automotive. It is laid out for 12.0 mm / 472 mil centre spacing, measures 48.9 – 51.8 mm in total length 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 11 catalogue part numbers in this series, covering 4 tip or head styles such as 05, 12, 14, 55. The barrel is brass with gold plating.

Specifications
| Structure | Coaxial Probe |
|---|---|
| Pitch | 12.0 mm / 472 mil |
| Operating temperature | -45 °C to +100 °C |
| Barrel diameter | 7.4 mm |
| Plunger plating | Gold |
| Barrel material | Brass |
| Barrel plating | Gold |
| Spring material | High-grade steel |
| Spring material 2 | Spring steel |
| Spring plating | Uncoated |
| Spring plating 2 | Gold |
| Preload 2 | 75 cN |
| Nominal travel | 5 mm |
| Maximum travel | 6 mm |
| Continuous current | 10 A |
| Continuous current 2 | 3 A |
| Impedance | 100 Ω |
| Total length (range) | 48.9 – 51.8 mm |
| Protrusion height (range) | 14.4 – 17.3 mm |
| Tip style diameter (range) | 5.3 – 8.81 mm |
| Tip style diameter 2 (range) | 0.6 – 1.2 mm |
| Press ring diameter | 8 mm |
| Collar diameter | 8 mm |
| Preload (range) | 300 – 900 cN |
| Spring force (range) | 750 – 1500 cN |
| Spring force 2 (range) | 105 – 130 cN |
| Nominal travel 2 (range) | 1 – 2 mm |
| Maximum travel 2 (range) | 2.7 – 3.7 mm |
| Typical contact resistance | 1 mΩ |
| Typical contact resistance 2 | 20 mΩ |
| Frequency (range) | 1 – 3 GHz |
| Inside/outside distance (range) | -2.2 – 2.35 mm |
| Tool size (range) | 6 – 8 mm |
Values as listed for this series. Confirm the exact data for your part number with your quotation.
Applications
- Automotive RF modules and connectors
- Consumer electronics with radio interfaces
- Industrial RF and high-frequency assemblies
- Contacting coaxial connectors in test fixtures

Part numbers (11)
| Part number | Tip style | Tip style diameter | Spring force | Preload | Total length | Plunger material |
|---|---|---|---|---|---|---|
| HF819HSDf011G1920H819AEPP | 12 | 5.55 mm | 1500 cN | 900 cN | 51.8 mm | Beryllium copper |
| HF819HSDf011G2020H819AEPP | 12 | 5.3 mm | 1500 cN | 900 cN | 50.3 mm | Beryllium copper |
| HF819HSDf011G2020H819AESP | 12 | 5.3 mm | 1500 cN | 900 cN | 50.3 mm | Beryllium copper |
| HF819HSDm011G1270H819AEPPV1 | 05 | 7.5 mm | 750 cN | 300 cN | 48.9 mm | Beryllium copper |
| HF819HSDm011G1270H819AEPPV2 | 05 | 7.5 mm | 750 cN | 300 cN | 48.9 mm | Beryllium copper |
| HF819HSDm012G1270H819AESP | 14 | 8.81 mm | 750 cN | 300 cN | 48.9 mm | Brass |
| HF819HSDm012G2020H819AESP | 14 | 8.81 mm | 1500 cN | 900 cN | 48.9 mm | Brass |
| HF819HSDm013G1270H819AESP | 55 | 8.81 mm | 750 cN | 300 cN | 50 mm | Brass |
| HF819HSDm013G2020HSDmP | 55 | 8.81 mm | 1500 cN | 900 cN | 50 mm | Brass |
| HF819HSDm013G2020HSDmPV1 | 05 | 7.5 mm | 1500 cN | 900 cN | 50 mm | Beryllium copper |
| HF819HSDm013G2020HSDmPV2 | 55 | 8.81 mm | 1500 cN | 900 cN | 50 mm | Brass |
FAQ
What pitch and length is HF819?
HF819 has a pitch of 12.0 mm / 472 mil, total length of 48.9 – 51.8 mm and protrusion height of 14.4 – 17.3 mm. The full dimension list is in the specification table on this page.
How much current can HF819 carry?
The rated continuous current is 10 A, with a typical resistance of 1 mΩ.
Which part numbers and tip styles are available for HF819?
11 part numbers are listed, for example HF819HSDf011G1920H819AEPP, HF819HSDf011G2020H819AEPP, HF819HSDf011G2020H819AESP. Tip or head styles include 05, 12, 14, 55. The table on this page lists every part number with its tip and spring data.
What temperature range is HF819 rated for?
HF819 is specified for -45 °C to +100 °C.
How do I get a price or sample for HF819?
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 rf (radio frequency) test probes
Enquire / Request a quote
Tell us the HF819 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.