ICT/FCT Spring Test Probes
Series 28 ICT/FCT Test Probe
Series 28 is an ICT/FCT test probe series in the EMSGLOB range. It is laid out for 4.8 mm / 189 mil centre spacing, measures 36.15 mm in total length and offers 4.2 mm of working travel.
Its datasheet values are a rated current of 5 A, a typical resistance of 20 mΩ and an operating range of -55 °C to +120 °C. There are 35 catalogue part numbers in this series, covering 8 tip or head styles such as Conical point 90°, Serrated head, 4-point crown 60°, Spherical head. Matching receptacle / compatible series: S 28.
Specifications
| Minimum pitch | 4.8 mm / 189 mil |
|---|---|
| Total length | 36.15 mm |
| Installation height | 8.85 mm |
| Rated travel | 4.2 mm |
| Max. travel | 6.35 mm |
| Rated current | 5 A |
| Typical resistance | 20 mΩ |
| Operating temperature | -55 °C to +120 °C |
| Compatible with | S 28 |
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 (35)
| Part number | Tip / head style | Head Ø (mm) | Spring force (N) |
|---|---|---|---|
| 28.02.28.19 | Widened (code 02) | 2.8 | 1.9 |
| 28.02.28.23 | Widened (code 02) | 2.8 | 2.3 |
| 28.02.28.40 | Widened (code 02) | 2.8 | 4 |
| 28.03.28.19 | Stepped (code 03) | 2.8 | 1.9 |
| 28.03.28.23 | Stepped (code 03) | 2.8 | 2.3 |
| 28.03.28.40 | Stepped (code 03) | 2.8 | 4 |
| 28.03.40.19 | Stepped (code 03) | 4 | 1.9 |
| 28.03.40.23 | Stepped (code 03) | 4 | 2.3 |
| 28.03.40.40 | Stepped (code 03) | 4 | 4 |
| 28.03.40.45 | Stepped (code 03) | 4 | 4.5 |
| 28.04.28.19 | Concave head 90° (code 04) | 2.8 | 1.9 |
| 28.04.28.23 | Concave head 90° (code 04) | 2.8 | 2.3 |
| 28.04.28.40 | Concave head 90° (code 04) | 2.8 | 4 |
| 28.04.40.19 | Concave head 90° (code 04) | 4 | 1.9 |
| 28.04.40.23 | Concave head 90° (code 04) | 4 | 2.3 |
| 28.04.40.40 | Concave head 90° (code 04) | 4 | 4 |
| 28.05.20.19 | Spherical head (code 05) | 2 | 1.9 |
| 28.05.20.23 | Spherical head (code 05) | 2 | 2.3 |
| 28.05.20.40 | Spherical head (code 05) | 2 | 4 |
| 28.05.40.19 | Spherical head (code 05) | 4 | 1.9 |
| 28.05.40.23 | Spherical head (code 05) | 4 | 2.3 |
| 28.05.40.40 | Spherical head (code 05) | 4 | 4 |
| 28.06.30.23 | 4-point crown 60° (code 06) | 3 | 1.9 |
| 28.06.30.40 | 4-point crown 60° (code 06) | 3 | 4 |
| 28.08.28.19 | Serrated head (code 08) | 2.8 | 1.9 |
| 28.08.28.23 | Serrated head (code 08) | 2.8 | 2.3 |
| 28.08.28.40 | Serrated head (code 08) | 2.8 | 4 |
| 28.08.40.19 | Serrated head (code 08) | 4 | 1.9 |
| 28.08.40.23 | Serrated head (code 08) | 4 | 2.3 |
| 28.08.40.40 | Serrated head (code 08) | 4 | 4 |
| 28.08.63.45 | Serrated head (code 08) | 6.3 | 4.5 |
| 28.102.20.22 | Sharp tip (Steel) (code 102) | 2 | 2.2 |
| 28.15.40.19 | Conical point 90° (code 15) | 4 | 1.9 |
| 28.15.40.23 | Conical point 90° (code 15) | 4 | 2.3 |
| 28.15.40.40 | Conical point 90° (code 15) | 4 | 4 |
Tip and head styles
FAQ
What pitch and length is Series 28?
Series 28 has a minimum pitch of 4.8 mm / 189 mil, total length of 36.15 mm and installation height of 8.85 mm. The full dimension list is in the specification table on this page.
How much current can Series 28 carry?
The rated continuous current is 5 A, with a typical resistance of 20 mΩ.
Which part numbers and tip styles are available for Series 28?
35 part numbers are listed, for example 28.02.28.19, 28.02.28.23, 28.02.28.40. Tip or head styles include Conical point 90°, Serrated head, 4-point crown 60°, Spherical head, Concave head 90°, Stepped. The table on this page lists every part number with its tip and spring data.
Which receptacle or series fits Series 28?
Series 28 is listed as compatible with S 28.
How do I get a price or sample for Series 28?
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 Series 28 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.