Unisonic Technologies
Analog and power semiconductors. Made in our own fabs.
10,000+ parts, many of them drop-in replacements for TI, ST, onsemi, Infineon and Nexperia. Designed, fabricated, packaged and tested in-house since 1990.
36years in business
10,000+part numbers
270Kwafers per month
35countries served
Everything on a standard BOM.
Power management, signal chain and logic ICs, plus MOSFETs, IGBTs, diodes and transistors from 20 V to 1800 V.
Analog & Logic ICs
3,600+ parts across six families.
- Power management1,300+LDOs to 40 V / 3 A, TL431 references, PWM and quasi-resonant controllers, DC/DC, load switches
- Signal chain1,500+Op amps, comparators, analog switches, level shifters, reset ICs
- 74-series logic~1,000HC, HCT, AC, AHC, LVC, AUP, AUC and AVC families
- Drivers300+Hall sensors 2.5–28 V, BLDC motor drivers, LED and gate drivers
- Interface & special function500+RS-232, RS-485, CAN and LIN transceivers, Li-ion protection, AEC-Q100 automotive ICs
Discretes & Power
6,500+ parts from small signal to 1800 V.
- MOSFET2,500+Planar to 1800 V, trench to 250 V, split-gate from 1.0 mΩ, super-junction 500–1200 V
- IGBT & fast recovery diodes255Field-stop trench 330–1350 V, 4–200 A, TO-247 and TO-247-4
- Diodes2,500+Schottky to 100 A, rectifiers, Zener 1.8–200 V, TVS and ESD arrays
- Bipolar transistors1,000+Power NPN to 1400 V, digital, RF to 12 GHz, Darlington, JFET
- Thyristors, optos & wide-bandgap310+SCR and TRIAC, photocouplers, SiC MOSFET 650–1200 V, GaN
200+ packages.
From DFN0603 to TO-247-4, including TOLL, TOLT and PDFN 5×6 for high-current designs.
Send us your part numbers. We find the UTC match.
One part or a full BOM, from any brand. Our engineers check electrical specs and package for each line.
- Send your listPart numbers, brands and quantities.
- We match each lineAgainst our 10,000+ catalog.
- Get quote and samplesDatasheets, pricing and lead time in one business day.
Built into industrial, energy and automotive designs.
Industrial customers are 45% of our business. Tap a part number to see its datasheet.
Automotive AEC-Q100
A/C compressors, LED lamps, wipers, windows, seats, pumps and EPS.
Power tools, e-bikes & BMS
Low-RDS(on) SGT MOSFETs in TOLL and PDFN 5×6, plus gate drivers.
Also used in AI servers, portable power stations, welders, home appliances, PC motherboards and printers.
A second source you can rely on.
When a major brand goes on allocation or raises prices, UTC parts fit the same footprint.
Same footprint
Pin-to-pin compatible with industry-standard parts. No PCB change.
Our own capacity
Three wafer fabs and two packaging plants, still expanding through 2027.
Factory pricing
No foundry or outsourced packaging markup.
Engineers on call
Five R&D centers handle BOM matching, samples and failure analysis.
Design, wafer, package, test. All in-house.
Three wafer fabs and two assembly plants in Fujian, run by UTC group companies.
Design5 R&D centers in Taipei, Dalian, Xiamen, Wuxi and Dandong
Wafer6″ and 8″ lines, about 270,000 wafers a month
Assembly & testAutomated lines, 750M+ units a month
DeliveryOffices and distributors in Asia, Europe and the Americas
We also sell wafers and bare die for selected products.
Certified for industrial and automotive supply.
- IATF 16949Automotive quality
- ISO 9001Quality management
- ISO 14001 · ISO 45001Environment, health & safety
- CNASAccredited reliability lab, Sept 2026
- AEC-Q100Qualified automotive regulators
1,200+ customers in 35 countries.
Asia
Taipei (HQ), Hong Kong, Singapore, Seoul, Tokyo, India, Thailand and 12 cities in mainland China
Europe
Germany, France, Italy, Spain, UK, Poland, Turkey
Americas
USA, Canada, Mexico, Brazil
Industries
Consumer electronics, automation, power supplies, energy storage, automotive
Revenue by application, 2025
Get a quote or samples.
Send part numbers, quantities and target price. We reply within one business day.
- Headquarters
- Unisonic Technologies Co., Ltd., Taipei
- Corporate website
- www.unisonic.com.tw