Advantages of Through-hole Automotive PCB Assembly：
Highly Reliable: Components mounted on a PCB Board using Through-hole assembly (THA) can withstand a high level of environmental stress as their terminals go through the drilled holes followed by soldering. This is the primary reason why Thru-Hole PCB boards are widely used in Military & Aerospace products as they tolerate extreme acceleration and collision scenarios.
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Manual adjustments can be performed easily: Defective components on PCB boards can be changed very easily. In other assembly processes like Surface Mount, it is not easy.