Company profile
Semelab — TT Electronics
Northumberland manufacturer of high-reliability discrete semiconductors, power modules and radio-frequency transistors for aerospace, defence and industrial markets; a brand of TT Electronics.
Company overview
Semelab is a semiconductor brand and product business within TT Electronics, rather than a standalone company. It designs and supplies high-reliability discrete semiconductors, power modules and RF transistors, often in custom hermetic packages, and is operated from TT Electronics' site in Bedlington, Northumberland. Its devices are used in actuation, control, power generation and distribution, and aerospace and defence equipment where qualification and long-term supply matter. The business was historically based in Lutterworth.
Semiconductor activity
Primary capability: Power Semiconductors. Supply-chain role: Discrete devices, Packaging.
Technologies and capabilities
- Silicon
- Power Electronics
- RF
Discrete power semiconductors; Power modules; RF transistors; Custom hermetic packaging
Markets served
- Aerospace
- Defence
- Industrial
- Energy
UK presence
Bedlington, North East. Part of the North East cluster.
Funding and transactions
Semelab was historically based in Lutterworth, Leicestershire. It became part of TT Electronics, which closed the Lutterworth site in 2021 and consolidated manufacturing at Bedlington, Northumberland.
Sources and verification
Last verified: 2026-09-29