Spring loaded connectors, also called pogo pins, contain a spring-loaded pin inside an insulated housing. They provide a reliable electrical connection that can compensate for movement or misalignment. The pin is free to move within the housing and makes contact via a constant spring force. These connectors are commonly used to make board-to-board or battery connections in applications like electronics, automotive, healthcare, and wireless devices where shock, vibration, or sliding contacts are present.

2. WHAT IS SPRING LOADED CONNECTOR?
• Spring-Loaded pins, sometimes called Spring-Loaded Contacts, or Pogo Pins, provide
a highly-reliable, precision made interconnect solution ideal for a number of
demanding application requirements in the fast-moving world of electronic
interconnects.
• It is available to make connections between Battery to PCB, Antenna to PCB, and Board
to Board on a small space.
• A Spring-Loaded Connector (Pogo pin) consists of pin body, plunger, spring and
insulator.
• A combination of Spring Loaded Connector (Pogo pin) with insulator allows for
production of custom products that can fit various shapes and sizes.
Pin
Body
Plunger
Spring Pin
Assembly
Insulator
Connector

3. ADVANTAGES
• Spring contact probes provide a constant force against the mating contact
surface, easily absorbing and compensating for movement seen during shock
and vibration without contact interruption.
• The contact or plunger in the spring contact probe is free to rotate and slide
within the housing or barrel of the probe.
• This inherent design characteristic makes spring probe connectors ideal for
bayonet and sliding mate connector designs.
• Spring contact probes provide repeatable contact in the field for modular
components, reduce costs, and eliminate cabled connections by providing a
dependable direct connection in rotating or sliding joints.

4. APPLICATION
These are typically used as button type contacts interacting two parallel
conductive surfaces inside an electronic devices or instrument.
• Data Collection Terminals : It can be used between key pad and Antenna.
• AV Equipment's : Battery Connectors, Signal and Power connections for lenses.
• Wireless Communication : In Charger units and cradle and Handset of Walkie
Talkies.
• Aero Space : In input output units.
• Health Care : As charges and as board to board connectors.
• Automotive : As charges , in rear display monitor, in car mirror adjustment, in
brake sensors module and its signals.
• Mobiles : In battery, speakers and as board to board connectors.

5. SPRING LOADED CONNECTOR TYPES:
Spring Loaded Connectors
Through
Hole
Surface
Mount
Right angle
Barrel
Crimp
Solder Cup
Partially Filled available in
other types as per footprint
Through
Hole
Surface
Mount

6. FEATURES
• Modular contacts for use on 2.54mm grid, available in various heights
• Precision-machined piston / base and gold-plated components assure
more life cycle & durability.
• Pistons have a long stroke available.
VARIETIES
• Spring loaded connectors are available to use in two basic technologies
through hole and surface mount.
• They are also available in many rows and various heights and tail lengths.
Also available in different plating's and number of pins.
• Spring material can be changes according to requirement of application.

7. MISALIGNMENTS
• Misalignments in X Direction
can be compensated by
these connectors as shown
in adjacent figure
• Misalignments in Z Direction
can be compensated by
these connectors as shown
in adjacent figure
• Misalignments in Y Direction
can be compensated by
these connectors as shown
in adjacent figure

8. • Angular Misalignment can be
compensated by these connectors
as shown in adjacent figure
• Rotational Misalignment can be
compensated by these connectors
as shown in adjacent figure

9. SIZES
No. of
Rows
Through
Hole
Surface
Mount
Barrel
Crimp
Solder Cup Right Angle Partially filled
1 Row
2 to 64
pins
2 to 10
pins
2 to 64
pins
2 to 64
pins
2 to 64 pins
As per your
Footprint
2 Rows
4 to 72
pins
4 to 20
pins
4 to 72
pins
4 to 72
pins
4 to 72 pins
As per your
Footprint
Spring Loaded Connectors Shapes, Rows and No. of Pins:

10. VIDEO
The video on next slide will illustrate assembly of Spring Loaded
Connectors.

11. • Author Nalin P. Sheth, MBA Harvard, is Managing Director of
Champion Electronics Pvt. Ltd., Pune, India.
• Champion Electronics is serving electronics industry all over the
world from 1975.
• Contact Details :
• Email : sales@champelec.com
• Ph: +91-8928502180.
• Website :www.champelec.com