Why do through-hole components fail to solder correctly down onto the PCB?

I am an electrical engineer in a company. Recently I am developed a new product in lab and making a sample for further confirmation. When I solder TH component, feel a little troublesome. Any soldering expert to help?

(Even the soldering process is under the suggested temperature.)

1.Component’s lead temperature is too cold and cannot form a good solder join.

2.Through-Hole Dimensions on the PCB are insufficient (too small)

3.Physical damage to the solder joint after soldering
After soldering, some processes may cause physical stress and fracturing, such as installing a heat sink on the surface, or installing unfitted plastic case molding.

Read More: Through Hole Components: Vintage Tech Still Key in PCBs

#PCB Assembly #THT PCB Assembly  #Manufacturing

Picture of Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.
Picture of Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

What Others Are Asking

Read Detailed Advice From Blog Articles

A Step-by-Step Guide to PCBA Manufacturing
Will Li

PCBA Manufacturing: A Step-by-Step Guide

What Is PCBA Manufacturing? PCBA manufacturing, short for printed circuit board assembly manufacturing, encompasses the intricate process of meticulously placing electronic components onto a printed

PCB vs PCBA: What’s the Difference
Will Li

PCB vs PCBA: What’s the Difference?

PCB and PCBA are the two most common terms in the electronics industry. Although the difference between them is only one letter, they represent different

Scroll to Top