Through Hole Technology
Icom-Scottech provides through-hole technology (THT) assembly for products requiring mechanically robust terminations, high-power interconnects, or specialist components not available in surface-mount formats. We support prototype, pre-production and volume manufacture, assembling a broad range of leaded components including connectors, relays, transformers, power devices and bespoke electromechanical parts. Where required, THT assembly is delivered as part of a mixed-technology build, with integration to SMT processes managed to maintain consistent quality and schedule.
THT builds are undertaken using a controlled process flow, typically comprising component preparation, lead forming where applicable, insertion to defined orientation and height requirements, and soldering. Depending on the product and specification, soldering may be performed by hand soldering or wave soldering, with process parameters set to achieve reliable hole fill and consistent solder fillets whilst protecting heat-sensitive components. Thermal requirements are managed through defined dwell times, solder temperature control and, where appropriate, pre-heat profiles, supporting repeatable solder joint formation across the assembly.
Quality assurance is applied at appropriate stages throughout manufacture. Assemblies are inspected to confirm component identity, polarity and orientation, lead protrusion, solder wetting and joint acceptability in accordance with the build specification and IPC-aligned workmanship expectations. Where required by the application, cleaning processes and verification may be applied to manage residues and support long-term reliability. Any non-conformances are addressed through controlled rework and repair by trained personnel using documented methods and suitable tooling.
To support reliability, auditability and compliance, we maintain clear build records and, where specified, component and material traceability (including batch/lot information), alongside revision and configuration control. Assemblies can be subjected to functional verification in accordance with customer documentation prior to integration or delivery, providing confidence that the finished product meets electrical and mechanical requirements. This disciplined approach enables Icom-Scottech to deliver THT assemblies that are dependable, repeatable and aligned to customer specifications.