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Through-hole technology
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In electronics, through-hole technology is a manufacturing scheme in which leads on the components are inserted through holes drilled in printed circuit boards and soldered to pads on the opposite sid
A through-hole circuit board
A through-hole circuit board
Through-hole devices mounted on the circuit board of a mid-1980s home computer. Axial-lead devices are at upper left, while blue radial-lead capacitor
Through-hole devices mounted on the circuit board of a mid-1980s home computer. Axial-lead devices are at upper left, while blue radial-lead capacitors are at upper right
Axial- (top) and radial- (bottom) leaded electrolytic capacitors
Axial- (top) and radial- (bottom) leaded electrolytic capacitors
Components like integrated circuits can have upwards of dozens of leads, or pins
Components like integrated circuits can have upwards of dozens of leads, or pins
Printed circuit board
Videos
A printed circuit board, also known as a printed wiring board, is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features etched fr
Through-hole technology
…through-hole technology (also spelled "thru-hole") is a manufacturing scheme in which leads on the components are inserted through holes drilled in printed circuit boards (PCB) and soldered to pads on the opposite side, either by manual assembly (hand placement) or by the use of automated insertion mount machines…
Printed circuit board of a DVD player
Printed circuit board of a DVD player
Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surfac
Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, vias connecting traces on both sides, and some electronic components mounted using through-hole mounting
Proximity fuze Mark 53 production line 1944
Proximity fuze Mark 53 production line 1944
Through-hole (leaded) resistors on a paper tape. When mounted to a PCB, the resistors are removed from the tape and their leads are trimmed to require
Through-hole (leaded) resistors on a paper tape. When mounted to a PCB, the resistors are removed from the tape and their leads are trimmed to required length.