Question
Download Solution PDFA typical Solder composition used in component assembly to PCB is
This question was previously asked in
URSC (ISRO) Technician B (Electronic Mechanic): Previous Year Paper (Held on 20 Nov 2016)
Answer (Detailed Solution Below)
Option 4 : Lead and tin
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Download Solution PDF- On Printer Circuit Board the electronic devices are added or repaired used soldering of terminals to the board. The modern techniques involve using a solder gun.
- In the Printed Circuit Board (PCB) the electronic components connected are Surface Mounted Devices, its pins are soldered onto the PCB using dip soldering method.
- Soldering: Soldering is a joining process used to join different types of metals together having different properties. Solder is a metal alloy, usually made up of tin and lead which is melted using a hot iron (soldering iron).
- The iron is heated to temperatures above 600˚F which then cools to create a strong bond. Flux material used in soldering is ZnCl2 (Zinc Chloride) and NH4Cl (Ammonium Chloride).
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