UTC
A high-volume maker of discrete semiconductors and analog ICs — BJTs, MOSFETs, diodes, SCR/TRIACs, LDOs, op-amps, and audio amplifiers. UTC supplies the jellybean parts every BOM needs.
About UTC
Unisonic Technologies (UTC), established in 1990 and headquartered in Taipei, is a vertically integrated IDM: it acquired its own wafer fabs and packaging plant in 1995 and today runs production bases in Fuzhou and Xiamen with over 2,300 employees worldwide. UTC designs and manufactures discrete semiconductors and standard analog ICs — transistors, MOSFETs, voltage regulators, op-amps and power management parts — that are established pin-compatible alternatives for legacy jellybean components from ON, ST and Toshiba, at compelling cost. Zephyr carries UTC as a franchise-authorized line.
What UTC Builds
Jump straight into filtered parametric search within Zephyr's catalog.
Diodes & Rectifiers
Thyristors & Modules
Analog & Mixed-Signal
Popular UTC Parts
A selection of high-demand part numbers. Live pricing and full specs on each product page.
Replacing a competitor part?
UTC parts are function-compatible alternatives to many leading brands. Zephyr's engine maps your existing part to a verified UTC equivalent.
A Manufacturer You Can Build On
Industry-Standard Parts
Direct equivalents to the jellybean discretes and linear ICs every BOM uses.
30+ Years
Founded in 1990 with proven high-volume supply.
Discrete + Analog
Transistors, diodes, regulators, and amplifiers from one line.
Related Manufacturers
Other Zephyr lines that pair well with UTC.
Source UTC through Zephyr
Get live pricing, verified stock, and a 24-hour RFQ response on any UTC part — backed by franchise authorization and full traceability.