Switch Probes · Normally open (NO)
F879-NO Switch Probe
F879-NO is a switch probe series in the EMSGLOB range, listed under Normally open (NO). It suits a minimum pitch of 2.54 mm / 100 mil, is 24.5 – 31.8 mm long overall and offers 3.5 – 4 mm of working travel.
On the electrical side you get a rated current of 3 A, a typical resistance of 65 mΩ and an operating range of -45 °C to +100 °C. There are 8 catalogue part numbers in this series, covering 5 tip or head styles such as Serrated stepped, Spherical, Flat, Flat stepped. The plunger is beryllium copper, and the barrel is brass with gold plating.
Specifications
| Structure | Basic Contact Probe |
|---|---|
| Pitch | 2.54 mm / 100 mil |
| Operating temperature | -45 °C to +100 °C |
| Barrel diameter | 1.65 mm |
| Press ring diameter | 2.3 mm |
| Collar diameter | 2.3 mm |
| Plunger material | Beryllium copper |
| Barrel material | Brass |
| Barrel plating | Gold |
| Spring material | Spring steel |
| Spring plating | Silver |
| Pointing accuracy | ± 0.08 mm |
| Continuous current | 3 A |
| Continuous current 2 | 1 A |
| Typical contact resistance | 65 mΩ |
| Thread | M2X0,25 |
| Tool size | 1.7 mm |
| Total length (range) | 24.5 – 31.8 mm |
| Protrusion height (range) | 9 – 16.3 mm |
| Tip style diameter (range) | 0.5 – 2 mm |
| Preload (range) | 35 – 50 cN |
| Spring force (range) | 125 – 200 cN |
| Nominal travel (range) | 3.5 – 4 mm |
| Maximum travel (range) | 4 – 5 mm |
| Switch travel (range) | 1.5 – 2.6 mm |
Values as listed for this series. Confirm the exact data for your part number with your quotation.
Applications
- Presence and position checks in test fixtures
- Detecting components, connectors and housings
- Normally open (NO) and normally closed (NC) switching
- Pneumatic and position-sensing fixture designs
Part numbers (8)
| Part number | Tip style | Tip style diameter | Spring force | Preload | Total length | Nominal travel |
|---|---|---|---|---|---|---|
| F87906B180G200 | 06 – Serrated stepped | 1.8 mm | 200 cN | 50 cN | 24.5 mm | 4 mm |
| F87906B180G200E16S1 | 06 – Serrated stepped | 1.8 mm | 200 cN | 50 cN | 31.8 mm | 3.5 mm |
| F87911B100G200 | 11 – Spherical | 1 mm | 200 cN | 50 cN | 24.5 mm | 4 mm |
| F87916B050G125 | 16 – Flat | 0.5 mm | 125 cN | 35 cN | 24.5 mm | 4 mm |
| F87916B100G200 | 16 – Flat | 1 mm | 200 cN | 50 cN | 24.5 mm | 4 mm |
| F87917B180G200 | 17 – Flat stepped | 1.8 mm | 200 cN | 50 cN | 24.5 mm | 4 mm |
| F87917K180U200 | 17 – Flat stepped | 1.8 mm | 200 cN | 50 cN | 24.5 mm | 4 mm |
| F87917T200N200 | 17T – Metal head insulated with slot | 2 mm | 200 cN | 50 cN | 26.3 mm | 4 mm |
FAQ
What pitch and length is F879-NO?
F879-NO has a pitch of 2.54 mm / 100 mil, total length of 24.5 – 31.8 mm and protrusion height of 9 – 16.3 mm. The full dimension list is in the specification table on this page.
How much current can F879-NO carry?
The rated continuous current is 3 A, with a typical resistance of 65 mΩ.
Which part numbers and tip styles are available for F879-NO?
8 part numbers are listed, for example F87906B180G200, F87906B180G200E16S1, F87911B100G200. Tip or head styles include Serrated stepped, Spherical, Flat, Flat stepped, Metal head insulated with slot. The table on this page lists every part number with its tip and spring data.
What temperature range is F879-NO rated for?
F879-NO is specified for -45 °C to +100 °C.
How do I get a price or sample for F879-NO?
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 switch probes
Enquire / Request a quote
Tell us the F879-NO 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.