Lead Forensics Spring Contacts, Pogo Pins and SMT Contact Pads | Harwin
Home > Spring Contacts

Spring Contacts

Spring Loaded Contacts and Contact Pads

By using either spring forces inherent in bent metal, or an encapsulated miniature spring, these contacts can provide a single contact point for connection, without any specific style of mating connector required. Just a plain conductive surface is required, either to conduct signal current, or for grounding purposes.

SMT Spring Contacts

A comprehensive range of single piece spring contacts, suitable for shielding, grounding, mobile phone antenna and other general electrical connection applications. Also known as antenna contacts, grounding contacts or shield fingers.

  • Development Kit DEV-001 with 16 different contacts and free refills
  • 30 different designs, ranging from 1.23mm to 7.25mm vertical free heights
  • Option of horizontal spring contacts for 90 degree connection
  • Protected tip options to prevent hooking
  • Positive stop options, to prevent over-stressed contacts
  • Mounted in a row, the contacts can provide an excellent RFI shielding connection for metal doors or other cabinet enclosures
  • The contact design ensures positive contact with the mating surface, and is tolerant to both wiping and sliding action
  • All contacts are Surface Mount, supplied in Tape and Reel packaging for automated assembly placement

Spring Loaded SMT Contacts – Pogo Pins

Spring loaded contacts consist of a plunger (or head), barrel (or body), and a fully encapsulated fine spring, to provide the spring force required to maintain positive contact. All have a high durability, exceeding 10,000 mating cycles.

  • Surface mountable vertical spring loaded contact pins, free height from 2.8mm to 8.2mm
  • Option of Throughboard peg – can be used for Plated-Through-Hole soldering, or just as a SMT location peg
  • Rounded contact heads with Gold finish for minimal wear
  • Some options supplied in Tape and Reel packaging for automated assembly systems

SMT Contact Pads

Multi-purpose flat contact pads for Surface Mount fixing – thicknesses between 0.1mm and 0.5mm. Ideal for providing a more robust surface than direct track contact.

  • Supplied in Tape and Reel packaging for automated assembly systems
  • Gold finish for maximum wear resistance
  • Choice of contact pad shapes – square, round or oval

Technical Details

SMT Spring Contacts

Material

Phosphor Bronze or Titanium Copper – Gold or Tin (over Nickel) finish

Current

1A to 9A, see individual product

Free Heights

1.23mm to 7.25mm

Working Heights

0.90mm to 6.95mm

Contact Styles

  • Antenna Contact with Positive Stop
  • Antenna Contact – Extended C style
  • Spring Contact – C style
  • Spring Contact – Box style (protected tip)
  • Spring Contact – Multi-Directional (can be used in either vertical or horizontal orientation)

Pogo Pins / Spring Loaded Contacts

Materials

Brass plunger and barrel, Gold finish. Stainless Steel spring.

Current

1A or 2A per contact

Durability

10,000 mating cycles

Operating Temperature

-40°C to +85°C

SMT Contact Pads

Material

Beryllium Copper, Gold finish

Current

6A

Operating Temperature

-40°C to +180°C

Downloads

Technical Documents

PDF

SMT Spring Contact Range summary graph

Catalog Section

PDF

Spring Contacts – complete section

Test Reports

PDF

Test Report HT028 – Spring Contacts S7041, S7051,…

Product Training

PDF

SMT Spring Contacts

PDF

Spring Loaded Contacts – Probes, Pogo Pins, Pads

Browse the Range

 
Pogo Pins

Pogo pins consisting of a plunger (or head), barrel (or body), and a fully encapsulated fine spring, to provide the…

View all
 
SMT Contact Pads

Multi-purpose flat contact pads for Surface Mount fixing – thicknesses between 0.1mm and 0.5mm. Supplied in Tape and Reel packaging…

View all
 
SMT Spring Contacts

Over 30 designs of single-piece SMT spring contacts, in a wide variety of designs – positive stop, horizontal connection, protected…

View all