SMTSO Series Surface Mounted Technology

Suitable for PCB board to board and board to board connections
Carrier packaging, suitable for SMT automated installation, saving time and labor costs
Has good heat dissipation
Combining the technological advantages of through-holes (high mechanical stability) with time-saving installation and efficient reflow soldering
Can provide customized UNC threads

SMT reflow soldering installation

REQUEST SAMPLES

TECHNICAL PARAMETER

FAQ

M Thread size	M1.2x0.25
Thread Length	Full thread
H Body Length	1.0 mm
A	0.48 mm
OD Outside Diameter	3.18 mm
C	2.41 mm
Materials	Steel
Surface Treatment	Tin plated
Installation Equipment/Method	SMT

1. What is a Press-Fit PCB Connector?

A press-fit PCB connector is an electrical interconnect component designed to be inserted into plated through-holes (PTH) on a printed circuit board (PCB) without soldering. Instead of solder, it relies on mechanical interference (friction) to establish a reliable electrical and mechanical connection.

2. How Does a Press-Fit Connector Work?

Press-fit connectors feature compliant pins that deform slightly when pressed into a PCB hole. The spring-like action of the pins creates a tight fit, ensuring:

● Electrical conductivity (low resistance)

● Mechanical stability (vibration resistance)

● Long-term reliability (no solder fatigue)

3. What Are the Advantages of Press-Fit Connectors?

✔ No soldering required – Reduces thermal stress and assembly time.

✔ High reliability – Eliminates solder joint failures.

✔ Suitable for high-power/high-speed applications – Better thermal and electrical performance than soldered connections.

✔ Reusable (in some cases) – Can be removed and reinserted if needed.